#ifndef IGEOM_CBIND_H__
#define IGEOM_CBIND_H__

  /** \mainpage The ITAPS Geometry Interface iGeom
   *
   * The ITAPS Geometry Interface iGeom provides a common interface for
   * accessing geometry and data associated with a mesh.  Applications written
   * to use this interface can use a variety of implementations, choosing
   * the one that best meets its needs.  They can also use tools written
   * to this interface.
   *
   * \section ITAPS Data Model
   *
   * The ITAPS interfaces use a data model composed of four basic data types:\n
   * \em Entity: basic topological entities in a model, e.g. vertices, 
   * edges, faces, regions. \n
   * \em Entity \em Set: arbitrary grouping of other entities and sets. 
   * Entity sets also support parent/child relations with other sets which
   * are distinct from entities contained in those sets.  Parent/child links
   * can be used to embed graph relationships between sets, e.g. to 
   * represent topological relationships between the sets. \n
   * \em Interface: the object with which model is associated and on which
   * functions in iGeom are called. \n
   * \em Tag: application data associated with objects of any of the other 
   * data types.  Each tag has a designated name, size, and data type.
   *
   * \section JTAPS Entity Type
   * Each entity has a specific Entity Type.  The Entity 
   * Type is one of VERTEX, EDGE, FACE, and REGION, and is synonymous with
   * the topological dimension of the entity.  Entity Type is an enumerated
   * type in the iBase_EntityType enumeration.
   *
   * \section KTAPS Entity-, Array-, and Iterator-Based Access
   *
   * The iGeom interface provides functions for accessing entities
   * individually, as arrays of entities, or using iterators.  These access
   * methods have different memory versus execution time tradeoffs, 
   * depending on the implementation.
   *
   * \section LTAPS Lists Passed Through Interface
   *
   * Many of the functions in iGeom have arguments corresponding to lists of 
   * objects.  In-type arguments for lists consist of a pointer to an array and
   * a list size.  Lists returned from functions are passed in three arguments,
   * a pointer to the array representing the list, and pointers to the
   * allocated and occupied lengths of the array.  These three arguments are 
   * inout-type arguments, because they can be allocated by the application and
   * passed into the interface to hold the results of the function.  Lists
   * which are pre-allocated must be large enough to hold the results of the
   * function; if this is not the case, an error is generated.  Otherwise, the
   * occupied size is changed to the size output from the function.  If a list
   * argument is unallocated (the list pointer points to a NULL value) or if
   * the incoming value of the allocated size is zero, the list storage will be
   * allocated by the implementation.  IN ALL CASES, MEMORY ALLOCATED BY ITAPS
   * INTERFACE IMPLEMENTATIONS IS DONE USING THE C MALLOC FUNCTION, AND CAN BE
   * DE-ALLOCATED USING THE C FREE FUNCTION.
   *
   */

#ifndef ITAPS
#define ITAPS
#endif

#include "iBase.h"
#include "iGeom_protos.h"
#ifdef __cplusplus
extern "C" {
#endif

    /**\brief  Type used to store iGeom interface handle
     *
     * Type used to store iGeom interface handle
     */
  typedef struct iGeom_Instance_Private* iGeom_Instance;

    /**\brief  Type used to store an iterator returned by iGeom
     *
     * Type used to store an iterator returned by iGeom
     */
  typedef struct iGeom_EntityIterator_Private* iGeom_EntityIterator;

    /**\brief  Type used to store an array iterator returned by iGeom
     *
     * Type used to store an array iterator returned by iGeom
     */
  typedef struct iGeom_EntityArrIterator_Private* iGeom_EntityArrIterator;

    /**\brief  Get a description of the error returned from the last iGeom function
     *
     * Get a description of the error returned from the last iGeom function
     * \param instance iGeom instance handle
     * \param descr Pointer to a character string to be filled with a
     *        description of the error from the last iGeom function
     * \param *err Pointer to error type returned from function
     * \param descr_len Length of the character string pointed to by descr
     */
  void iGeom_getDescription( iGeom_Instance instance,
                             char* descr,
                             int* err,
                             int descr_len );

    /**\brief  Get the error type returned from the last iGeom function
     *
     * Get the error type returned from the last iGeom function.  Value
     * returned is a member of the iBase_ErrorType enumeration.
     * \param instance iGeom instance handle
     * \param *error_type Error type returned from last iGeom function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getErrorType(iGeom_Instance instance,
                          /*out*/ int *error_type, 
                          int *err);

    /**\brief  Construct a new iGeom instance
     *
     * Construct a new iGeom instance, using implementation-specific
     * options
     * \param options Pointer to implementation-specific options string
     * \param instance Pointer to iGeom instance handle returned from function
     * \param *err Pointer to error type returned from function
     * \param options_len Length of the character string pointed to by options
     */
  void iGeom_newGeom( char const* options,
                      iGeom_Instance* instance_out,
                      int* err,
                      int options_len );

    /**\brief  Destroy an iGeom instance
     *
     * Destroy an iGeom instance
     * \param instance iGeom instance to be destroyed
     * \param *err Pointer to error type returned from function
     */
  void iGeom_dtor( iGeom_Instance instance, int* err );


    /**\brief  Load a geom from a file
     *
     * Load a geom from a file.  If entity set is specified, loaded geom
     * is added to that set; specify zero if that is not desired.
     * \param instance iGeom instance handle
     * \param entity_set_handle Set to which loaded geom will be added, zero
     *        if not desired
     * \param name File name from which geom is to be loaded
     * \param options Pointer to implementation-specific options string
     * \param *err Pointer to error type returned from function
     * \param name_len Length of the file name character string
     * \param options_len Length of the options character string
     */
  void iGeom_load( iGeom_Instance,
                   char const* name,
                   char const* options,
                   int* err,
                   int name_len,
                   int options_len );

    /**\brief  Save a geom to a file
     *
     * Save a geom to a file.  If entity set is specified, save only the
     * geom contained in that set.
     * \param instance iGeom instance handle
     * \param entity_set_handle Entity set being saved
     * \param name File name to which geom is to be saved
     * \param options Pointer to implementation-specific options string
     * \param *err Pointer to error type returned from function
     * \param name_len Length of the file name character string
     * \param options_len Length of the options character string
     */
  void iGeom_save( iGeom_Instance,
                   char const* name,
                   char const* options,
                   int* err,
                   int name_len,
                   int options_len );

    /**\brief  Get handle of the root set for this instance
     *
     * Get handle of the root set for this instance.  All geom in
     * this instance can be accessed from this set.
     * \param instance iGeom instance handle
     * \param root_set Pointer to set handle returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getRootSet( iGeom_Instance,
                         iBase_EntitySetHandle* root_set,
                         int* err );

/**\brief Get the bounding box of the entire model
 * Get the bounding box of the entire model
 * \param min_x Minimum coordinate of bounding box 
 * \param min_y Minimum coordinate of bounding box 
 * \param min_z Minimum coordinate of bounding box 
 * \param max_x Maximum coordinate of bounding box 
 * \param max_y Maximum coordinate of bounding box 
 * \param max_z Maximum coordinate of bounding box 
 */
  void iGeom_getBoundBox( iGeom_Instance,
                          double* min_x,
                          double* min_y,
                          double* min_z,
                          double* max_x,
                          double* max_y,
                          double* max_z,
                          int* err );

    /**\brief  Get entities of specific type and/or topology in set or instance
     *
     * Get entities of specific type and/or topology in set or instance.  All 
     * entities of a given type or topology are requested by specifying
     * iBase_ALL_TOPOLOGIES or iBase_ALL_TYPES, respectively.  Specified type
     * or topology must be a value in the iBase_EntityType or iBase_EntityTopology
     * enumeration, respectively.
     * \param instance iGeom instance handle
     * \param entity_set_handle Entity set being queried
     * \param entity_type Type of entities being requested
     * \param entity_topology Topology of entities being requested
     * \param *entity_handles Pointer to array of entity handles returned 
     *        from function
     * \param *entity_handles_allocated Pointer to allocated size of 
     *        entity_handles array
     * \param *entity_handles_size Pointer to occupied size of entity_handles array
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getEntities( iGeom_Instance instance,
                          iBase_EntitySetHandle set_handle,
                          int entity_type,
                          iBase_EntityHandle** entity_handles,
                          int* entity_handles_allococated,
                          int* entity_handles_size,
                          int* err );

    /**\brief  Get the number of entities with the specified type in the instance or set
     *
     * Get the number of entities with the specified type in the instance 
     * or set.  If entity set handle is zero, return information for instance,
     * otherwise for set.  Value of entity type must be from the
     * iBase_EntityType enumeration.  If iBase_ALL_TYPES is specified,
     * total number of entities (excluding entity sets) is returned.
     * \param instance iGeom instance handle
     * \param entity_set_handle Entity set being queried
     * \param entity_type Type of entity requested
     * \param num_type Pointer to number of entities, returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getNumOfType( iGeom_Instance instance,
                           iBase_EntitySetHandle set_handle,
                           int entity_type,
                           int* num_out,
                           int* err );

    /**\brief  Get the entity type for the specified entity
     *
     * Get the entity type for the specified entity.  Types
     * returned are values in the iBase_EntityType enumeration.
     * \param instance iGeom instance handle
     * \param entity_handle entity handle being queried
     * \param *type Pointer to location at which to store the returned type
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getEntType( iGeom_Instance instance,
                         iBase_EntityHandle entity_handle,
                         int* type,
                         int* err );

    /**\brief  Get the entity type for the specified entities
     *
     * Get the entity type for the specified entities.  Types
     * returned are values in the iBase_EntityType enumeration.
     * \param instance iGeom instance handle
     * \param entity_handles Array of entity handles being queried
     * \param entity_handles_size Number of entities in entity_handles array
     * \param *type Pointer to array of types returned from function
     * \param *type_allocated Pointer to allocated size of type array
     * \param *type_size Pointer to occupied size of type array
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getArrType( iGeom_Instance instance,
                         iBase_EntityHandle const* entity_handles,
                         int entity_handles_size,
                         int** type,
                         int* type_allocated,
                         int* type_size,
                         int* err );

    /**\brief  Get entities of specified type adjacent to an entity
     *
     * Get entities of specified type adjacent to an entity.  Specified type
     * must be value in the iBase_EntityType enumeration.
     * \param instance iGeom instance handle
     * \param entity_handle Entity handle being queried
     * \param entity_type_requested Type of adjacent entities requested
     * \param *adj_entity_handles Pointer to array of adjacent entities
     *        returned from function
     * \param *adj_entity_handles_allocated Pointer to allocated size of 
     *        adj_entity_handles array
     * \param *adj_entity_handles_size Pointer to occupied size of 
     *        adj_entity_handles array
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getEntAdj( iGeom_Instance instance,
                        iBase_EntityHandle entity_handle,
                        int to_dimension,
                        iBase_EntityHandle** adj_entities,
                        int* adj_entities_allocated,
                        int* adj_entities_size,
                        int* err );

    /**\brief  Get entities of specified type adjacent to entities
     *
     * Get entities of specified type adjacent to entities.  Specified type
     * must be value in the iBase_EntityType enumeration.  \em offset(i) is
     * index of first entity in adjacentEntityHandles array adjacent to 
     * entity_handles[i].
     * \param instance iGeom instance handle
     * \param entity_handles Array of entity handles being queried
     * \param entity_handles_size Number of entities in entity_handles array
     * \param entity_type_requested Type of adjacent entities requested
     * \param *adjacentEntityHandles Pointer to array of adjacentEntityHandles 
     *        returned from function
     * \param *adjacentEntityHandles_allocated Pointer to allocated size of 
     *        adjacentEntityHandles array
     * \param *adj_entity_handles_size Pointer to occupied size of 
     *        adjacentEntityHandles array
     * \param *offset Pointer to array of offsets returned from function
     * \param *offset_allocated Pointer to allocated size of offset array
     * \param *offset_size Pointer to occupied size of offset array
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getArrAdj( iGeom_Instance instance,
                        iBase_EntityHandle const* entity_handles,
                        int entity_handles_size,
                        int requested_entity_type,
                        iBase_EntityHandle** adj_entity_handles,
                        int* adj_entity_handles_allocated,
                        int* adj_entity_handles_size,
                        int** offset,
                        int* offset_allocated,
                        int* offset_size,
                        int* err );

/**\brief Get "2nd order" adjacencies to an entity
 * Get "2nd order" adjacencies to an entity, that is, from an entity, through
 * other entities of a specified "bridge" dimension, to other entities of another 
 * specified "to" dimension.
 * \param entity_handle Entity from which adjacencies are requested
 * \param bridge_dimension Bridge dimension for 2nd order adjacencies
 * \param to_dimension Dimension of adjacent entities returned
 * \param adjacent_entities Adjacent entities
 * \param adjacent_entities_allocated Allocated size of returned array
 * \param adjacent_entities_size Occupied size of returned array
 * \param err 
 */
  void iGeom_getEnt2ndAdj( iGeom_Instance instance,
                           iBase_EntityHandle entity_handle,
                           int bridge_dimension,
                           int to_dimension,
                           iBase_EntityHandle** adjacent_entities,
                           int* adjacent_entities_allocated,
                           int* adjacent_entities_size,
                           int* err );

/**\brief Get "2nd order" adjacencies to an array of entities
 * Get "2nd order" adjacencies to an array of entities, that is, from each entity, through
 * other entities of a specified "bridge" dimension, to other entities of another 
 * specified "to" dimension.
 *
 * \param entity_handles Entities from which adjacencies are requested
 * \param entity_handles_size Number of entities whose adjacencies are requested
 * \param bridge_dimension Bridge dimension for 2nd order adjacencies
 * \param to_dimension Dimension of adjacent entities returned
 * \param adj_entity_handles Adjacent entities
 * \param adj_entity_handles_allocated Allocated size of returned array
 * \param adj_entity_handles_size Occupied size of returned array
 * \param offset Offset[i] is offset into adj_entity_handles of 2nd order 
 *        adjacencies of ith entity in entity_handles
 * \param offset_allocated Allocated size of offset array
 * \param offset_size Occupied size of offset array
 * \param err 
 */
  void iGeom_getArr2ndAdj( iGeom_Instance instance,
                           iBase_EntityHandle const* entity_handles,
                           int entity_handles_size,
                           int order_adjacent_key,
                           int requested_entity_type,
                           iBase_EntityHandle** adj_entity_handles,
                           int* adj_entity_handles_allocated,
                           int* adj_entity_handles_size,
                           int** offset,
                           int* offset_allocated,
                           int* offset_size,
                           int* err );

/**\brief Return whether two entities are adjacent
 * Return whether two entities are adjacent.
 * \param entity_handle1 First entity queried
 * \param entity_handle2 Second entity queried
 * \param are_adjacent If returned non-zero, entities are adjacent, otherwise
 *        they are not
 * \param err 
 */
  void iGeom_isEntAdj( iGeom_Instance instance,
                       iBase_EntityHandle entity_handle1,
                       iBase_EntityHandle entity_handle2,
                       int* are_adjacent,
                       int* err );

/**\brief Return whether entity pairs are adjacent
 * Return whether entity pairs are adjacent, i.e. if entity_handles_1[i] is
 * adjacent to entity_handles_2[i].  This function requires entity_handles_1_size
 * and entity_handles_2_size to be equal.
 * \param entity_handles_1 First array of entities
 * \param entity_handles_1_size Number of entities in first array
 * \param entity_handles_2 Second array of entities
 * \param entity_handles_2_size Number of entities in second array
 * \param is_adjacent_info Array of flags returned from function
 * \param is_adjacent_info_allocated Allocated size of flags array
 * \param is_adjacent_info_size Occupied size of flags array
 */
  void iGeom_isArrAdj( iGeom_Instance instance,
                       iBase_EntityHandle const* entity_handles_1,
                       int entity_handles_1_size,
                       iBase_EntityHandle const* entity_handles_2,
                       int entity_handles_2_size,
                       int** is_adjacent_info,
                       int* is_adjacent_info_allocated,
                       int* is_adjacent_info_size,
                       int* err );

/**\brief DON'T KNOW WHAT THIS FUNCTION IS
 *
 * \param topo_level_out 
 */
  void iGeom_getTopoLevel( iGeom_Instance instance,
                           int* topo_level_out,
                           int* err );

/**\brief Get closest point to an entity
 * Get closest point to a specified position on an entity
 * \param entity_handle Entity being queried
 * \param near_x Coordinates of starting point
 * \param near_y Coordinates of starting point
 * \param near_z Coordinates of starting point
 * \param on_x Closest point on entity
 * \param on_y Closest point on entity
 * \param on_z Closest point on entity
 */
  void iGeom_getEntClosestPt( iGeom_Instance instance,
                              iBase_EntityHandle entity_handle,
                              double near_x, 
                              double near_y,
                              double near_z,
                              double* on_x,
                              double* on_y,
                              double* on_z,
                              int* err );

/**\brief Get closest point for an array of entities and points
 * Get closest point for an array of entities and points.  If either the number
 * of entities or number of coordinate triples is unity, then all points or 
 * entities are queried for that entity or point, respectively, otherwise each
 * point corresponds to each entity.  storage_order should be a value in
 * the iBase_StorageOrder enum; if input as iBase_UNKNOWN, order is in native order
 * with respect to implementation.
 * \param entity_handles Entity(ies) being queried
 * \param entity_handles_size Number of entities being queried
 * \param storage_order Storage order of input points
 * \param near_coordinates Coordinates of starting point(s)
 * \param near_coordinates_size Number of values in near_coordinates array
 * \param on_coordinates Coordinates of closest points
 * \param on_coordinates_allocated Allocated size of closest point array
 * \param on_coordinates_size Occupied size of closest point array
 */
  void iGeom_getArrClosestPt( iGeom_Instance instance,
                              iBase_EntityHandle const* entity_handles,
                              int entity_handles_size,
                              int storage_order,
                              double const* near_coordinates,
                              int near_coordinates_size,
                              double** on_coordinates,
                              int* on_coordinates_allocated,
                              int* on_coordinates_size,
                              int* err );

/**\brief Get the normal vector on an entity at the given position
 * Get the normal vector on an entity at the given position.
 * \param entity_handle Entity being queried
 * \param x Coordinates of starting point
 * \param y Coordinates of starting point
 * \param z Coordinates of starting point
 * \param nrml_i Normal vector at starting point
 * \param nrml_j Normal vector at starting point
 * \param nrml_k Normal vector at starting point
 */
  void iGeom_getEntNrmlXYZ( iGeom_Instance,
                            iBase_EntityHandle entity_handle,
                            double x,
                            double y,
                            double z,
                            double* nrml_i,
                            double* nrml_j,
                            double* nrml_k,
                            int* err );

/**\brief Get the normal vector on an entity(ies) at given position(s)
 * Get the normal vector on an entity(ies) at given position(s).  If either the 
 * number of entities or number of coordinate triples is unity, then all points or 
 * entities are queried for that entity or point, respectively, otherwise each
 * point corresponds to each entity.  storage_order should be a value in
 * the iBase_StorageOrder enum; if input as iBase_UNKNOWN, order is in native order
 * with respect to implementation.
 * \param entity_handles Entity(ies) being queried
 * \param entity_handles_size Number of entities being queried
 * \param storage_order Storage order of coordinates
 * \param coordinates Starting coordinates
 * \param coordinates_size Number of values in coordinates array
 * \param normals Normal coordinates
 * \param normals_allocated Allocated size of normals array
 * \param normals_size Occupied size of normals array
 */
  void iGeom_getArrNrmlXYZ( iGeom_Instance,
                            iBase_EntityHandle const* entity_handles,
                            int entity_handles_size,
                            int storage_order,
                            double const* coordinates,
                            int coordinates_size,
                            double** normals,
                            int* normals_allocated,
                            int* normals_size,
                            int* err );

/**\brief Get the normal vector AND closest point on an entity at given position
 * Get the normal vector AND closest point on an entity at a given position.
 * \param entity_handle Entity being queried
 * \param x Starting coordinates
 * \param y Starting coordinates
 * \param z Starting coordinates
 * \param pt_x Closest point
 * \param pt_y Closest point
 * \param pt_z Closest point
 * \param nrml_i Normal at closest point
 * \param nrml_j Normal at closest point
 * \param nrml_k Normal at closest point
 */
  void iGeom_getEntNrmlPlXYZ( iGeom_Instance,
                              iBase_EntityHandle entity_handle,
                              double x,
                              double y,
                              double z,
                              double* pt_x,
                              double* pt_y,
                              double* pt_z,
                              double* nrml_i,
                              double* nrml_j,
                              double* nrml_k,
                              int* err );

/**\brief Get the normal vector AND closest point on an entity(ies) at given position(s)
 * Get the normal vector AND closest point on an entity(ies) at given position(s).  If either the 
 * number of entities or number of coordinate triples is unity, then all points or 
 * entities are queried for that entity or point, respectively, otherwise each
 * point corresponds to each entity.  storage_order should be a value in
 * the iBase_StorageOrder enum; if input as iBase_UNKNOWN, order is in native order
 * with respect to implementation.
 * \param entity_handles Entity(ies) being queried
 * \param entity_handles_size Number of entity(ies) being queried
 * \param storage_order Storage order in near_coordinates array
 * \param near_coordinates Starting coordinates
 * \param near_coordinates_size Number of values in near_coordinates array
 * \param on_coordinates Closest point array
 * \param on_coordinates_allocated Allocated size of closest point array
 * \param on_coordinates_size Occupied size of closest point array
 * \param normals Normal array
 * \param normals_allocated Allocated size of normal array
 * \param normals_size Occupied size of normal array
 */
  void iGeom_getArrNrmlPlXYZ( iGeom_Instance,
                              iBase_EntityHandle const* entity_handles,
                              int entity_handles_size,
                              int storage_order,
                              double const* near_coordinates,
                              int near_coordinates_size,
                              double** on_coordinates,
                              int* on_coordinates_allocated,
                              int* on_coordinates_size,
                              double** normals,
                              int* normals_allocated,
                              int* normals_size,
                              int* err );

/**\brief Get the tangent vector on an entity at given position
 * Get the tangent vector on an entity at a given position.
 * \param entity_handle Entity being queried
 * \param x Starting coordinates
 * \param y Starting coordinates
 * \param z Starting coordinates
 * \param tgnt_i Tangent at closest point
 * \param tgnt_j Tangent at closest point
 * \param tgnt_k Tangent at closest point
 */
  void iGeom_getEntTgntXYZ( iGeom_Instance,
                            iBase_EntityHandle entity_handle,
                            double x,
                            double y,
                            double z,
                            double* tgnt_i,
                            double* tgnt_j,
                            double* tgnt_k,
                            int* err );

/**\brief Get the tangent vector on an entity(ies) at given position(s)
 * Get the tangent vector on an entity(ies) at given position(s).  If either the 
 * number of entities or number of coordinate triples is unity, then all points or 
 * entities are queried for that entity or point, respectively, otherwise each
 * point corresponds to each entity.  storage_order should be a value in
 * the iBase_StorageOrder enum; if input as iBase_UNKNOWN, order is in native order
 * with respect to implementation.
 * \param entity_handles Entity(ies) being queried
 * \param entity_handles_size Number of entities being queried
 * \param storage_order Storage order of coordinates
 * \param coordinates Starting coordinates
 * \param coordinates_size Number of values in coordinates array
 * \param tangents Tangent coordinates
 * \param tangents_allocated Allocated size of tangents array
 * \param tangents_size Occupied size of tangents array
 */
  void iGeom_getArrTgntXYZ( iGeom_Instance,
                            iBase_EntityHandle const* entity_handles,
                            int entity_handles_size,
                            int storage_order,
                            double const* coordinates,
                            int coordinates_size,
                            double** tangents,
                            int* tangents_allocated,
                            int* tangents_size,
                            int* err );

/**\brief Get the two principle curvature vectors for a face at a point
 * Get the two principle curvature vectors for a face at a point.  Magnitudes of
 * vectors are curvature, directions are directions of principal curvatures.
 * \param face_handle Face being queried
 * \param x Position being queried
 * \param y Position being queried
 * \param z Position being queried
 * \param cvtr1_i Maximum curvature vector
 * \param cvtr1_j Maximum curvature vector
 * \param cvtr1_k Maximum curvature vector
 * \param cvtr2_i Minimum curvature vector
 * \param cvtr2_j Minimum curvature vector
 * \param cvtr2_k Minimum curvature vector
 */
  void iGeom_getFcCvtrXYZ( iGeom_Instance,
                           iBase_EntityHandle face_handle,
                           double x,
                           double y,
                           double z,
                           double* cvtr1_i,
                           double* cvtr1_j,
                           double* cvtr1_k,
                           double* cvtr2_i,
                           double* cvtr2_j,
                           double* cvtr2_k,
                           int* err );

/**\brief Get the principle curvature vector for an edge at a point
 * Get the principle curvature vector for an edge at a point.  Magnitude of
 * vector is the curvature, direction is direction of principal curvature.
 * \param edge_handle Edge being queried
 * \param x Position being queried
 * \param y Position being queried
 * \param z Position being queried
 * \param cvtr_i Maximum curvature vector
 * \param cvtr_j Maximum curvature vector
 * \param cvtr_k Maximum curvature vector
 */
  void iGeom_getEgCvtrXYZ( iGeom_Instance,
                           iBase_EntityHandle edge_handle,
                           double x,
                           double y,
                           double z,
                           double* cvtr_i,
                           double* cvtr_j,
                           double* cvtr_k,
                           int* err );

/**\brief Get the curvature(s) on an entity(ies) at given position(s)
 * Get the curvature(s) on an entity(ies) at given position(s).  If either the 
 * number of entities or number of coordinate triples is unity, then all points or 
 * entities are queried for that entity or point, respectively, otherwise each
 * point corresponds to each entity.  storage_order should be a value in
 * the iBase_StorageOrder enum; if input as iBase_UNKNOWN, order is in native order
 * with respect to implementation.
 * \param entity_handles Entity(ies) being queried
 * \param entity_handles_size Number of entities being queried
 * \param storage_order Storage order of coordinates
 * \param coords Starting coordinates
 * \param coords_size Number of values in coordinates array
 * \param cvtr_1 First principal curvatures
 * \param cvtr_1_allocated Allocated size of first curvature array
 * \param cvtr_1_size Occupied size of first curvature array
 * \param cvtr_2 Second principal curvatures
 * \param cvtr_2_allocated Allocated size of second curvature array
 * \param cvtr_2_size Occupied size of second curvature array
 */
  void iGeom_getEntArrCvtrXYZ( iGeom_Instance,
                               iBase_EntityHandle const* entity_handles,
                               int entity_handles_size,
                               int storage_order,
                               double const* coords,
                               int coords_size,
                               double** cvtr_1,
                               int* cvtr_1_allocated,
                               int* cvtr_1_size,
                               double** cvtr_2,
                               int* cvtr_2_allocated,
                               int* cvtr_2_size,
                               int* err );

/**\brief Get closest point, tangent, and curvature of edge
 * Get closest point, tangent, and curvature of edge.
 * \param edge_handle Edge being queried
 * \param x Point at which entity is being queried
 * \param y Point at which entity is being queried
 * \param z Point at which entity is being queried
 * \param on_x Closest point at point being queried
 * \param on_y Closest point at point being queried
 * \param on_z Closest point at point being queried
 * \param tgnt_i Tangent at point being queried
 * \param tgnt_j Tangent at point being queried
 * \param tgnt_k Tangent at point being queried
 * \param cvtr_i Curvature at point being queried
 * \param cvtr_j Curvature at point being queried
 * \param cvtr_k Curvature at point being queried
 */
  void iGeom_getEgEvalXYZ( iGeom_Instance,
                           iBase_EntityHandle edge_handle,
                           double x,
                           double y,
                           double z,
                           double* on_x,
                           double* on_y,
                           double* on_z,
                           double* tgnt_i,
                           double* tgnt_j,
                           double* tgnt_k,
                           double* cvtr_i,
                           double* cvtr_j,
                           double* cvtr_k,
                           int* err );

/**\brief Get closest point, tangent, and curvature of face
 * Get closest point, tangent, and curvature of face.  If any of input
 * coordinate pointers are NULL, that value is not returned.
 * \param face_handle Face being queried
 * \param x Point at which entity is being queried
 * \param y Point at which entity is being queried
 * \param z Point at which entity is being queried
 * \param on_x Closest point at point being queried
 * \param on_y Closest point at point being queried
 * \param on_z Closest point at point being queried
 * \param nrml_i Normal at point being queried
 * \param nrml_j Normal at point being queried
 * \param nrml_k Normal at point being queried
 * \param cvtr1_i First principal curvature at point being queried
 * \param cvtr1_j First principal curvature at point being queried
 * \param cvtr1_k First principal curvature at point being queried
 * \param cvtr2_i Second principal curvature at point being queried
 * \param cvtr2_j Second principal curvature at point being queried
 * \param cvtr2_k Second principal curvature at point being queried
 */
  void iGeom_getFcEvalXYZ( iGeom_Instance,
                           iBase_EntityHandle face_handle,
                           double x,
                           double y,
                           double z,
                           double* on_x,
                           double* on_y,
                           double* on_z,
                           double* nrml_i,
                           double* nrml_j,
                           double* nrml_k,
                           double* cvtr1_i,
                           double* cvtr1_j,
                           double* cvtr1_k,
                           double* cvtr2_i,
                           double* cvtr2_j,
                           double* cvtr2_k,
                           int* err );

/**\brief Get the closest point(s), tangent(s), and curvature(s) on an entity(ies) at given position(s)
 * Get the closest point(s), tangent(s), and curvature(s) on an entity(ies) at given position(s).  
 * If either the number of entities or number of coordinate triples is unity, then all points or 
 * entities are queried for that entity or point, respectively, otherwise each
 * point corresponds to each entity.  storage_order should be a value in
 * the iBase_StorageOrder enum; if input as iBase_UNKNOWN, order is in native order
 * with respect to implementation.
 * \param edge_handles Edge(s) being queried
 * \param edge_handles_size Number of edges being queried
 * \param storage_order Storage order of coordinates
 * \param coords Starting coordinates
 * \param coords_size Number of values in coordinates array
 * \param on_coords Closest point array
 * \param on_coords_allocated Allocated size of closest point array
 * \param on_coords_size Occupied size of closest point array
 * \param tangent Tangent array
 * \param tangent_allocated Allocated size of tangent array
 * \param tangent_size Occupied size of tangent array
 * \param cvtr First principal curvatures
 * \param cvtr_allocated Allocated size of first curvature array
 * \param cvtr_size Occupied size of first curvature array
 */
  void iGeom_getArrEgEvalXYZ( iGeom_Instance,
                              iBase_EntityHandle const* edge_handles,
                              int edge_handles_size,
                              int storage_order,
                              double const* coords,
                              int coords_size,
                              double** on_coords,
                              int* on_coords_allocated,
                              int* on_coords_size,
                              double** tangent,
                              int* tangent_allocated,
                              int* tangent_size,
                              double** cvtr,
                              int* cvtr_allocated,
                              int* cvtr_size,
                              int* err );

/**\brief Get the closest point(s), tangent(s), and curvature(s) on an entity(ies) at given position(s)
 * Get the closest point(s), tangent(s), and curvature(s) on an entity(ies) at given position(s).  
 * If either the number of entities or number of coordinate triples is unity, then all points or 
 * entities are queried for that entity or point, respectively, otherwise each
 * point corresponds to each entity.  storage_order should be a value in
 * the iBase_StorageOrder enum; if input as iBase_UNKNOWN, order is in native order
 * with respect to implementation.
 * \param edge_handles Edge(s) being queried
 * \param edge_handles_size Number of edges being queried
 * \param storage_order Storage order of coordinates
 * \param coords Starting coordinates
 * \param coords_size Number of values in coordinates array
 * \param on_coords Closest point array
 * \param on_coords_allocated Allocated size of closest point array
 * \param on_coords_size Occupied size of closest point array
 * \param normal Normal array
 * \param normal_allocated Allocated size of normal array
 * \param normal_size Occupied size of normal array
 * \param cvtr_1 First principal curvatures
 * \param cvtr_1_allocated Allocated size of first curvature array
 * \param cvtr_1_size Occupied size of first curvature array
 * \param cvtr_2 Second principal curvatures
 * \param cvtr_2_allocated Allocated size of second curvature array
 * \param cvtr_2_size Occupied size of second curvature array
 */
  void iGeom_getArrFcEvalXYZ( iGeom_Instance,
                              iBase_EntityHandle const* face_handles,
                              int face_handles_size,
                              int storage_order,
                              double const* coords,
                              int coords_size,
                              double** on_coords,
                              int* on_coords_allocated,
                              int* on_coords_size,
                              double** normal,
                              int* normal_allocated,
                              int* normal_size,
                              double** cvtr1,
                              int* cvtr1_allocated,
                              int* cvtr1_size,
                              double** cvtr2,
                              int* cvtr2_allocated,
                              int* cvtr2_size,
                              int* err );

/**\brief Get the bounding box of the specified entity
 * Get the bounding box of the specified entity
 * \param entity_handle Entity being queried
 * \param min_x Minimum coordinate of bounding box 
 * \param min_y Minimum coordinate of bounding box 
 * \param min_z Minimum coordinate of bounding box 
 * \param max_x Maximum coordinate of bounding box 
 * \param max_y Maximum coordinate of bounding box 
 * \param max_z Maximum coordinate of bounding box 
 */
  void iGeom_getEntBoundBox( iGeom_Instance,
                             iBase_EntityHandle entity_handle,
                             double* min_x,
                             double* min_y,
                             double* min_z,
                             double* max_x,
                             double* max_y,
                             double* max_z,
                             int* err );

/**\brief Get the bounding box of the specified entities
 * Get the bounding box of the specified entities.  Storage order passed back
 * will be member of iBase_StorageOrder enum.
 * \param entity_handles Entity handles being queried
 * \param enttiy_handles_size Number of entities being queried
 * \param storage_order Storage order of coordinates passed back
 * \param min_corner Minimum coordinates of bounding boxes
 * \param min_corner_allocated Allocated size of minimum coordinates array
 * \param min_corner_size Occupied size of minimum coordinates array
 * \param max_corner Maximum coordinates of bounding boxes
 * \param max_corner_allocated Allocated size of maximum coordinates array
 * \param max_corner_size Occupied size of maximum coordinates array
 */
  void iGeom_getArrBoundBox( iGeom_Instance,
                             iBase_EntityHandle const* entity_handles,
                             int entity_handles_size,
                             int storage_order,
                             double** min_corner,
                             int* min_corner_allocated,
                             int* min_corner_size,
                             double** max_corner,
                             int* max_corner_allocated,
                             int* max_corner_size,
                             int* err );

    /**\brief  Get coordinates of specified vertex
     *
     * Get coordinates of specified vertex.
     * \param instance iGeom instance handle
     * \param vertex_handle Geom vertex being queried
     * \param *x Pointer to x coordinate returned from function
     * \param *y Pointer to y coordinate returned from function
     * \param *z Pointer to z coordinate returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getVtxCoord( iGeom_Instance,
                          iBase_EntityHandle vertex_handle,
                          double* x,
                          double* y,
                          double* z,
                          int* err );

    /**\brief  Get coordinates of specified vertices
     *
     * Get coordinates of specified vertices.  If storage order is passed in
     * with a value other than iBase_UNDETERMINED, coordinates are returned
     * in the specified storage order, otherwise storage order is that native
     * to the implementation.  Storage order of returned coordinates is also
     * returned.
     * \param instance iGeom instance handle
     * \param vertex_handles Array of geom vertex handles whose coordinates are
     *        being requested
     * \param vertex_handles_size Number of vertices in vertex_handles array
     * \param storage_order Storage order requested for coordinate data
     * \param *coords Pointer to array of coordinates returned from function
     * \param *coords_allocated Pointer to allocated size of coords array
     * \param *coords_size Pointer to occupied size of coords array
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getVtxArrCoords( iGeom_Instance,
                              iBase_EntityHandle const* entity_handles,
                              int entity_handles_size,
                              int storage_order,
                              double** coordinates,
                              int* coordinates_allocated,
                              int* coordinates_size,
                              int* err );

/**\brief Intersect a ray with the model
 * Intersect a ray with the model.  Storage orders passed back are members of the
 * iBase_StorageOrder enumeration; if output is iBase_UNKNOWN, order is in native order
 * with respect to implementation.
 * \param x Point from which ray is fired
 * \param y Point from which ray is fired
 * \param z Point from which ray is fired
 * \param dir_x Direction in which ray is fired
 * \param dir_y Direction in which ray is fired
 * \param dir_z Direction in which ray is fired
 * \param intersect_entity_handles Entities intersected by ray
 * \param intersect_entity_handles_allocated Allocated size of intersections array
 * \param intersect_entity_hangles_size Occupied size of intersections array
 * \param storage_order Storage order of coordinates passed back
 * \param intersect_coords Coordinates of intersections
 * \param intersect_coords_allocated Allocated size of coordinates array
 * \param intersect_coords_size Occupied size of coordinates array
 * \param param_coords Distances along ray of intersections
 * \param param_coords_allocated Allocated size of param_coords array
 * \param param_coords_size Occupied size of param_coords array
 */
  void iGeom_getPntRayIntsct( iGeom_Instance,
                              double x,
                              double y,
                              double z,
                              double dir_x,
                              double dir_y,
                              double dir_z,
                              iBase_EntityHandle** intersect_entity_handles,
                              int* intersect_entity_handles_allocated,
                              int* intersect_entity_hangles_size,
                              int storage_order,
                              double** intersect_coords,
                              int* intersect_coords_allocated,
                              int* intersect_coords_size,
                              double** param_coords,
                              int* param_coords_allocated,
                              int* param_coords_size,
                              int* err );

/**\brief Intersect an array of rays with the model
 * Intersect an array of rays with the model.  Storage orders passed back are members of the
 * iBase_StorageOrder enumeration; if input/output is iBase_UNKNOWN, order is in native order
 * with respect to implementation.
 * \param storage_order Storage order of input coordinates
 * \param coords Points from which rays are fired
 * \param coords_size Number of points from which rays are fired
 * \param directions Directions in which rays are fired
 * \param directions_size Number of coordinates in directions array
 * \param intersect_entity_handles Entities intersected by ray
 * \param intersect_entity_handles_allocated Allocated size of intersections array
 * \param intersect_entity_hangles_size Occupied size of intersections array
 * \param offset Offset[i] is offset into intersect_entity_handles of ith ray
 * \param offset_allocated Allocated size of offset array
 * \param offset_size Occupied size of offset array
 * \param storage_order Storage order of coordinates passed back
 * \param intersect_coords Coordinates of intersections
 * \param intersect_coords_allocated Allocated size of coordinates array
 * \param intersect_coords_size Occupied size of coordinates array
 * \param param_coords Distances along ray of intersections
 * \param param_coords_allocated Allocated size of param_coords array
 * \param param_coords_size Occupied size of param_coords array
 */
  void iGeom_getPntArrRayIntsct( iGeom_Instance,
                                 int storage_order,
                                 const double* coords,
                                 int coords_size,
                                 const double* directions,
                                 int directions_size,
                                 iBase_EntityHandle** intersect_entity_handles,
                                 int* intersect_entity_handles_allocated,
                                 int* intersect_entity_hangles_size,
                                 int** offset,
                                 int* offset_allocated,
                                 int* offset_size,
                                 double** intersect_coords,
                                 int* intersect_coords_allocated,
                                 int* intersect_coords_size,
                                 double** param_coords,
                                 int* param_coords_allocated,
                                 int* param_coords_size,
                                 int* err );

/**\brief Get the entity on which a point is located
 * Get the entity on which a point is located
 * \param x Point being queried
 * \param y Point being queried
 * \param z Point being queried
 * \param entity_handle Entity on which point is located
 */
  void iGeom_getPntClsf( iGeom_Instance,
                         double x,
                         double y,
                         double z,
                         iBase_EntityHandle* entity_handle,
                         int* err );

/**\brief Get the entities on which points are located
 * Get the entities on which points are located.   Storage orders should be members of the
 * iBase_StorageOrder enumeration; if input is iBase_UNKNOWN, order is in native order
 * with respect to implementation.
 * \param storage_order Storage order of coordinates in coords
 * \param coords Points being queried
 * \param coords_size Number of entries in coords array
 * \param entity_handles Entities on which points are located
 * \param entity_handles_allocated Allocated size of entity_handles array
 * \param entity_handles_size Occupied size of entity_handles array
 */
  void iGeom_getPntArrClsf( iGeom_Instance,
                            int storage_order,
                            double const* coords,
                            int coords_size,
                            iBase_EntityHandle** entity_handles,
                            int* entity_handles_allocated,
                            int* entity_handles_size,
                            int* err );

/**\brief Get the sense of a face with respect to a region
 * Get the sense of a face with respect to a region.  Sense returned is -1, 0, or 1,
 * representing "reversed", "both", or "forward".  "both" sense indicates that face bounds
 * the region once with each sense.
 * \param face Face being queried
 * \param region Region being queried
 * \param sense_out Sense of face with respect to region
 */
  void iGeom_getEntNrmlSense( iGeom_Instance,
                              iBase_EntityHandle face,
                              iBase_EntityHandle region,
                              int* sense_out,
                              int* err );

/**\brief Get the senses of an array of faces with respect to an array of regions
 * Get the senses of an array of faces with respect to an array of regions.  Sense returned 
 * is -1, 0, or 1, representing "reversed", "both", or "forward".  "both" sense indicates 
 * that face bounds the region once with each sense.
 * \param face_handles Faces being queried
 * \param face_handles_size Size of face handles array
 * \param region_handles Regions being queried
 * \param region_handles_size Size of region handles array
 * \param sense Senses of faces with respect to regions
 * \param sense_allocated Allocated size of senses array
 * \param sense_size Occupied size of senses array
 */
  void iGeom_getArrNrmlSense( iGeom_Instance,
                              iBase_EntityHandle const* face_handles,
                              int face_handles_size,
                              iBase_EntityHandle const* region_handles,
                              int region_handles_size,
                              int** sense,
                              int* sense_allocated,
                              int* sense_size,
                              int* err );

/**\brief Get the sense of an edge with respect to a face
 * Get the sense of an edge with respect to a face.  Sense returned is -1, 0, or 1,
 * representing "reversed", "both", or "forward".  "both" sense indicates that edge bounds
 * the face once with each sense.
 * \param edge Edge being queried
 * \param face Face being queried
 * \param sense_out Sense of edge with respect to face
 */
  void iGeom_getEgFcSense( iGeom_Instance,
                           iBase_EntityHandle edge,
                           iBase_EntityHandle face,
                           int* sense_out,
                           int* err );

/**\brief Get the senses of an array of edges with respect to an array of faces
 * Get the senses of an array of edges with respect to an array of faces.  Sense returned 
 * is -1, 0, or 1, representing "reversed", "both", or "forward".  "both" sense indicates 
 * that edge bounds the face once with each sense.
 * \param edge_handles Edges being queried
 * \param edge_handles_size Size of edge handles array
 * \param face_handles Faces being queried
 * \param face_handles_size Size of face handles array
 * \param sense Senses of faces with respect to regions
 * \param sense_allocated Allocated size of senses array
 * \param sense_size Occupied size of senses array
 */
  void iGeom_getEgFcArrSense( iGeom_Instance,
                              iBase_EntityHandle const* edge_handles,
                              int edge_handles_size,
                              iBase_EntityHandle const* face_handles,
                              int face_handles_size,
                              int** sense,
                              int* sense_allocated,
                              int* sense_size,
                              int* err );

/**\brief Get the sense of a vertex pair with respect to an edge
 * Get the sense of a vertex pair with respect to an edge.  Sense returned is -1, 0, or 1,
 * representing "reversed", "both", or "forward".  "both" sense indicates that vertices
 * are identical and that vertex bounds both sides of the edge
 * \param edge Edge being queried
 * \param vertex1 First vertex being queried
 * \param vertex2 Second vertex being queried
 * \param sense_out Sense of vertex pair with respect to edge
 */
  void iGeom_getEgVtxSense( iGeom_Instance,
                            iBase_EntityHandle edge,
                            iBase_EntityHandle vertex1,
                            iBase_EntityHandle vertex2,
                            int* sense_out,
                            int* err );

/**\brief Get the senses of vertex pair with respect to a edges
 * Get the senses of vertex pairs with respect to edges.  Sense returned is -1, 0, or 1,
 * representing "reversed", "both", or "forward".  "both" sense indicates that both vertices
 * in pair are identical and that vertex bounds both sides of the edge
 * \param edge_handles Edges being queried
 * \param edge_handles_size Number of edges being queried
 * \param vertex_handles_1 First vertex being queried
 * \param vertex_handles_1_size Number of vertices in vertices array
 * \param vertex_handles_2 Second vertex being queried
 * \param vertex_handles_2_size Number of vertices in vertices array
 * \param sense Sense of vertex pair with respect to edge
 * \param sense_allocated Allocated size of sense array
 * \param sense_size Occupied size of sense array
 */
  void iGeom_getEgVtxArrSense( iGeom_Instance,
                               iBase_EntityHandle const* edge_handles,
                               int edge_handles_size,
                               iBase_EntityHandle const* vertex_handles_1,
                               int veretx_handles_1_size,
                               iBase_EntityHandle const* vertex_handles_2,
                               int vertex_handles_2_size,
                               int** sense,
                               int* sense_allocated,
                               int* sense_size,
                               int* err );

/**\brief Return the measure (length, area, volume) of entities
 * Return the measure (length, area, volume) of entities
 * \param entity_handles Array of entities being queried
 * \param entity_handles_size Number of entities in entity array
 * \param measures Measures of entities being queried
 * \param measures_allocated Allocated size of measures array
 * \param measures_size Occupied size of measures array
 */
  void iGeom_measure( iGeom_Instance,
                      iBase_EntityHandle const* entity_handles,
                      int entity_handles_size,
                      double** measures,
                      int* measures_allocated,
                      int* measures_size,
                      int* err );

/**\brief Get the geometric type of an entity
 * Get the geometric type of an entity.  Specific types depend on implementation.
 * \param face_handle Face being queried
 * \param face_type Face type
 * \param face_type_length Length of face type string
 */
  void iGeom_getFaceType( iGeom_Instance,
                          iBase_EntityHandle face_handle,
                          char* face_type,
                          int* err,
                          int* face_type_length);

/**\brief Return whether interface has information about parameterization
 * Return whether an interface has information about parameterization (!=0) or not (0)
 * \param is_parametric If non-zero, interface has information about parameterization
 */
  void iGeom_getParametric( iGeom_Instance,
                            int* is_parametric,
                            int* err );

/**\brief Return whether an entity has a parameterization
 * Return whether an entity has a parameterization (!= 0) or not (=0)
 * \param entity_handle Entity being queried
 * \param is_parametric Entity has a parameterization (!= 0) or not (=0)
 */
  void iGeom_isEntParametric( iGeom_Instance,
                              iBase_EntityHandle entity_handle,
                              int* parametric,
                              int* err );

/**\brief Return whether entities have parameterizations
 * Return whether entities have parameterizations (!= 0) or not (=0)
 * \param entity_handles Entities being queried
 * \param entity_handles_size Number of entities being queried
 * \param is_parametric entity_handles[i] has a parameterization (!= 0) or not (=0)
 * \param is_parametric_allocated Allocated size of is_parametric array
 * \param is_parametric_size Occupied size of is_parametric array
 */
  void iGeom_isArrParametric( iGeom_Instance,
                              iBase_EntityHandle const* entity_handles,
                              int entity_handles_size,
                              int** is_parametric,
                              int* is_parametric_allocated,
                              int* is_parametric_size,
                              int* err );

/**\brief Return coordinate position at specified parametric position on entity
 * Return coordinate position at specified parametric position on entity.
 * \param entity_handle Entity being queried
 * \param u Parametric coordinate being queried
 * \param v Parametric coordinate being queried
 * \param x Spatial coordinate at parametric position being queried
 * \param y Spatial coordinate at parametric position being queried
 * \param z Spatial coordinate at parametric position being queried
 */
  void iGeom_getEntUVtoXYZ( iGeom_Instance,
                            iBase_EntityHandle entity_handle,
                            double u,
                            double v,
                            double* x,
                            double* y,
                            double* z,
                            int* err );

/**\brief Return coordinate positions at specified parametric position(s) on entity(ies)
 * Return coordinate positions at specified parametric position(s) on entity(ies).
 * If either the number of entities or number of parametric coordinate pairs is unity, then 
 * all points or entities are queried for that entity or point, respectively, otherwise each
 * point corresponds to each entity.  storage_order should be a value in
 * the iBase_StorageOrder enum; if input as iBase_UNKNOWN, order is in native order
 * with respect to implementation.
 * \param entity_handles Entities being queried
 * \param entity_handles_size Number of entities being queried
 * \param storage_order Storage order of uv coordinates input and xyz coordinate output
 * \param uv Coordinates being queried
 * \param uv_size Number of coordinates in array
 * \param coordinates Coordinates of parametric positions
 * \param coordinates_allocated Allocated size of coordinates array
 * \param coordinates_size Occupied size of coordinates array
 */
  void iGeom_getArrUVtoXYZ( iGeom_Instance,
                            iBase_EntityHandle const* entity_handles,
                            int entity_handles_size,
                            int storage_order,
                            double const* uv,
                            int uv_size,
                            double** coordinates,
                            int* coordinates_allocated,
                            int* coordinates_size,
                            int* err );

/**\brief Return coordinate position at specified parametric position on entity
 * Return coordinate position at specified parametric position on entity.
 * \param entity_handle Entity being queried
 * \param u Parametric coordinate being queried
 * \param x Spatial coordinate at parametric position being queried
 * \param y Spatial coordinate at parametric position being queried
 * \param z Spatial coordinate at parametric position being queried
 */
  void iGeom_getEntUtoXYZ( iGeom_Instance,
                           iBase_EntityHandle entity_handle,
                           double u,
                           double* x, 
                           double* y,
                           double* z,
                           int* err );

/**\brief Return coordinate positions at specified parametric position(s) on entity(ies)
 * Return coordinate positions at specified parametric position(s) on entity(ies).
 * If either the number of entities or number of parametric coordinate pairs is unity, then 
 * all points or entities are queried for that entity or point, respectively, otherwise each
 * point corresponds to each entity.  storage_order should be a value in
 * the iBase_StorageOrder enum; if input as iBase_UNKNOWN, order is in native order
 * with respect to implementation.
 * \param entity_handles Entities being queried
 * \param entity_handles_size Number of entities being queried
 * \param storage_order Storage order of resulting coordinates
 * \param uv Coordinates being queried
 * \param uv_size Number of coordinates in array
 * \param coordinates Coordinates of parametric positions
 * \param coordinates_allocated Allocated size of coordinates array
 * \param coordinates_size Occupied size of coordinates array
 */
  void iGeom_getArrUtoXYZ( iGeom_Instance,
                           iBase_EntityHandle const* entity_handles,
                           int entity_handles_size,
                           double const* u,
                           int u_size,
                           int storage_order,
                           double** on_coords,
                           int* on_coords_allocated,
                           int* on_coords_size,
                           int* err );

/**\brief Return parametric position at specified spatial position on entity
 * Return parametric position at specified spatial position on entity
 * \param entity_handle Entity being queried
 * \param x Spatial coordinate being queried
 * \param y Spatial coordinate being queried
 * \param z Spatial coordinate being queried
 * \param u Parametric coordinate at spatial position being queried
 * \param v Parametric coordinate at spatial position being queried
 */
  void iGeom_getEntXYZtoUV( iGeom_Instance,
                            iBase_EntityHandle entity_handle,
                            double x,
                            double y,
                            double z,
                            double* u,
                            double* v, 
                            int* err );

/**\brief Return parametric position at specified spatial position on entity
 * Return parametric position at specified spatial position on entity
 * \param entity_handle Entity being queried
 * \param x Spatial coordinate being queried
 * \param y Spatial coordinate being queried
 * \param z Spatial coordinate being queried
 * \param u Parametric coordinate at spatial position being queried
 */
  void iGeom_getEntXYZtoU( iGeom_Instance,
                           iBase_EntityHandle entity_handle,
                           double x,
                           double y,
                           double z,
                           double* u,
                           int* err );

/**\brief Return parametric positions at specified spatial position(s) on entity(ies)
 * Return parametric positions at specified spatial position(s) on entity(ies).
 * If either the number of entities or number of spatial coordinate triples is unity, then 
 * all points or entities are queried for that entity or point, respectively, otherwise each
 * point corresponds to each entity.  storage_order should be a value in
 * the iBase_StorageOrder enum; if input as iBase_UNKNOWN, order is in native order
 * with respect to implementation.
 * \param entity_handles Entities being queried
 * \param entity_handles_size Number of entities being queried
 * \param storage_order Storage order of spatial coordinates input
 * \param coordinates Coordinates being queried
 * \param coordinates_size Number of coordinates in array
 * \param uv Coordinates of parametric positions
 * \param uv_allocated Allocated size of coordinates array
 * \param uv_size Occupied size of coordinates array
 */
  void iGeom_getArrXYZtoUV( iGeom_Instance,
                            iBase_EntityHandle const* entity_handles,
                            int entity_handles_size,
                            int storage_order,
                            double const* coordinates,
                            int coordinates_size,
                            double** uv,
                            int* uv_allocated,
                            int* uv_size,
                            int* err );

/**\brief Return spatial positions at specified parametric position(s) on entity(ies)
 * Return spatial positions at specified parametric position(s) on entity(ies).
 * If either the number of entities or number of spatial coordinate triples is unity, then 
 * all points or entities are queried for that entity or point, respectively, otherwise each
 * point corresponds to each entity.  storage_order should be a value in
 * the iBase_StorageOrder enum; if input as iBase_UNKNOWN, order is in native order
 * with respect to implementation.
 * \param entity_handles Entities being queried
 * \param entity_handles_size Number of entities being queried
 * \param storage_order Storage order of spatial coordinates input
 * \param coordinates Coordinates being queried
 * \param coordinates_size Number of coordinates in array
 * \param u Coordinates of parametric positions
 * \param u_allocated Allocated size of coordinates array
 * \param u_size Occupied size of coordinates array
 */
  void iGeom_getArrXYZtoU( iGeom_Instance,
                           iBase_EntityHandle const* entity_handles,
                           int entity_handles_size,
                           int storage_order,
                           double const* coordinates,
                           int coordinates_size,
                           double** u,
                           int* u_allocated,
                           int* u_size,
                           int* err );

/**\brief Return parametric position at specified spatial position on entity, based on parametric position hint
 * Return parametric position at specified spatial position on entity, based on parametric
 * position hint.  For this function, u and v are input with parameters from which to start search.
 * Typically this will reduce the search time for new parametric coordinates.
 * \param entity_handle Entity being queried
 * \param x Spatial coordinate being queried
 * \param y Spatial coordinate being queried
 * \param z Spatial coordinate being queried
 * \param u Parametric coordinate at spatial position being queried
 * \param v Parametric coordinate at spatial position being queried
 */
  void iGeom_getEntXYZtoUVHint( iGeom_Instance,
                                iBase_EntityHandle entity_handle,
                                double x,
                                double y,
                                double z,
                                double* u,
                                double* v,
                                int* err );

/**\brief Return parametric positions at specified spatial position(s) on entity(ies), based on parametric position hints
 * Return parametric positions at specified spatial position(s) on entity(ies), based on 
 * parametric position hints.  If either the number of entities or number of spatial 
 * coordinate triples is unity, then all points or entities are queried for that entity 
 * or point, respectively, otherwise each point corresponds to each entity.  storage_order 
 * should be a value in the iBase_StorageOrder enum; if input as iBase_UNKNOWN, order is in 
 * native order with respect to implementation.
 * \param entity_handles Entities being queried
 * \param entity_handles_size Number of entities being queried
 * \param storage_order Storage order of spatial coordinates input
 * \param coordinates Coordinates being queried
 * \param coordinates_size Number of coordinates in array
 * \param uv Coordinates of parametric positions
 * \param uv_allocated Allocated size of coordinates array
 * \param uv_size Occupied size of coordinates array
 */
  void iGeom_getArrXYZtoUVHint( iGeom_Instance,
                                iBase_EntityHandle const* entity_handles,
                                int entity_handles_size,
                                int storage_order,
                                double const* coords,
                                int coords_size,
                                double** uv,
                                int* uv_allocated,
                                int* uv_size,
                                int* err );

/**\brief Get parametric range of entity
 * Get parametric range of entity
 * \param entity_handle Entity being queried
 * \param u_min Minimum parametric coordinate for entity
 * \param v_min Minimum parametric coordinate for entity
 * \param u_max Maximum parametric coordinate for entity
 * \param v_max Maximum parametric coordinate for entity
 */
  void iGeom_getEntUVRange( iGeom_Instance,
                            iBase_EntityHandle entity_handle,
                            double* u_min,
                            double* v_min,
                            double* u_max,
                            double* v_max,
                            int* err );

/**\brief Get parametric range of entity
 * Get parametric range of entity
 * \param entity_handle Entity being queried
 * \param u_min Minimum parametric coordinate for entity
 * \param u_max Maximum parametric coordinate for entity
 */
  void iGeom_getEntURange( iGeom_Instance,
                           iBase_EntityHandle entity_handle,
                           double* u_min,
                           double* u_max,
                           int* err );

/**\brief Get parametric range of entities
 * Get parametric range of entities
 * \param entity_handles Entities being queried
 * \param entity_handles_size Number of entities being queried
 * \param storage_order Storage order of parametric coordinates being returned
 * \param uv_min Minimum parametric coordinate for entities
 * \param uv_min_allocated Allocated size of minimum parametric coordinate array
 * \param uv_min_size Occupied size of minimum parametric coordinate array
 * \param uv_max Maximum parametric coordinate for entities
 * \param uv_max_allocated Allocated size of maximum parametric coordinate array
 * \param uv_max_size Occupied size of maximum parametric coordinate array
 */
  void iGeom_getArrUVRange( iGeom_Instance,
                            iBase_EntityHandle const* entity_handles,
                            int entity_handles_size,
                            int storage_order,
                            double** uv_min,
                            int* uv_min_allocated,
                            int* uv_min_size,
                            double** uv_max,
                            int* uv_max_allocated,
                            int* uv_max_size,
                            int* err );

/**\brief Get parametric range of entities
 * Get parametric range of entities
 * \param entity_handles Entities being queried
 * \param entity_handles_size Number of entities being queried
 * \param storage_order Storage order of parametric coordinates being returned
 * \param u_min Minimum parametric coordinate for entities
 * \param u_min_allocated Allocated size of minimum parametric coordinate array
 * \param u_min_size Occupied size of minimum parametric coordinate array
 * \param u_max Maximum parametric coordinate for entities
 * \param u_max_allocated Allocated size of maximum parametric coordinate array
 * \param u_max_size Occupied size of maximum parametric coordinate array
 */
  void iGeom_getArrURange( iGeom_Instance,
                           iBase_EntityHandle const* entity_handles,
                           int entity_handles_size,
                           double** u_min,
                           int* u_min_allocated,
                           int* u_min_size,
                           double** u_max,
                           int* u_max_allocated,
                           int* u_max_size,
                           int* err );

/**\brief Return the face parametric coordinates for a parametric position on a bounding edge 
 * Return the face parametric coordinates for a parametric position on a bounding edge
 * \param edge_handle Edge being queried
 * \param face_handle Face being queried
 * \param in_u Parametric position on edge
 * \param u Corresponding parametric position on face
 * \param v Corresponding parametric position on face
 */
  void iGeom_getEntUtoUV( iGeom_Instance,
                          iBase_EntityHandle edge_handle,
                          iBase_EntityHandle face_handle,
                          double in_u,
                          double* u,
                          double* v,
                          int* err );

/**\brief Return parametric coordinates on face of vertex position
 * Return parametric coordinates on face of vertex position
 * \param vertex_handle Vertex being queried
 * \param face_handle Face being queried
 * \param u Corresponding parametric position on face
 * \param v Corresponding parametric position on face
 */
  void iGeom_getVtxToUV( iGeom_Instance,
                         iBase_EntityHandle vertex_handle,
                         iBase_EntityHandle face_handle,
                         double* u,
                         double* v,
                         int* err );

/**\brief Return parametric coordinates on edge of vertex position
 * Return parametric coordinates on edge of vertex position
 * \param vertex_handle Vertex being queried
 * \param edge_handle Edge being queried
 * \param u Corresponding parametric position on face
 */
  void iGeom_getVtxToU( iGeom_Instance,
                        iBase_EntityHandle vertex_handle,
                        iBase_EntityHandle edge_handle,
                        double* u,
                        int* err );

/**\brief Return the face parametric coordinates for a parametric position on bounding edges
 * Return the face parametric coordinates for a parametric position on bounding edges
 * \param edge_handles Edges being queried
 * \param edge_handles_size Number of edges being queried
 * \param face_handles Faces being queried
 * \param face_handles_size Number of faces being queried
 * \param u_in Parametric positions on edges
 * \param u_in_size Number of parametric positions on edges
 * \param storage_order Storage order of coordinates returned
 * \param uv Corresponding parametric positions on faces
 * \param uv_allocated Allocated size of parameter array
 * \param uv_size Occupied size of parameter array
 */
  void iGeom_getArrUtoUV( iGeom_Instance,
                          iBase_EntityHandle const* edge_handles,
                          int edge_handles_size,
                          iBase_EntityHandle const* face_handles,
                          int face_handles_size,
                          double const* u_in,
                          int u_in_size,
                          int storage_order,
                          double** uv,
                          int* uv_allocated,
                          int* uv_size,
                          int* err );

/**\brief Return parametric coordinates on faces of vertex positions
 * Return parametric coordinates on faces of vertex positions
 * \param vertex_handles Vertices being queried
 * \param vertex_handles_size Number of vertices being queried
 * \param face_handles Faces being queried
 * \param face_handles_size Number of faces being queried
 * \param storage_order Storage order of coordinates returned
 * \param uv Corresponding parametric positions on faces
 * \param uv_allocated Allocated size of positions array
 * \param uv_size Occupied size of positions array
 */
  void iGeom_getVtxArrToUV( iGeom_Instance,
                            iBase_EntityHandle const* vertex_handles,
                            int vertex_handles_size,
                            iBase_EntityHandle const* face_handles,
                            int face_handles_size,
                            int storage_order,
                            double** uv,
                            int* uv_allocated,
                            int* uv_size,
                            int* err );

/**\brief Return parametric coordinates on edges of vertex positions
 * Return parametric coordinates on edges of vertex positions
 * \param vertex_handles Vertices being queried
 * \param vertex_handles_size Number of vertices being queried
 * \param edge_handles Edges being queried
 * \param edge_handles_size Number of edges being queried
 * \param u Corresponding parametric positions on faces
 * \param u_allocated Allocated size of positions array
 * \param u_size Occupied size of positions array
 */
  void iGeom_getVtxArrToU( iGeom_Instance,
                           iBase_EntityHandle const* vertex_handles,
                           int vertex_handles_size,
                           iBase_EntityHandle const* edge_handles,
                           int edge_handles_size,
                           double** u,
                           int* u_allocated,
                           int* u_size,
                           int* err );

/**\brief Return the normal at a specified parametric position
 * Return the normal at a specified parametric position
 * \param entity_handle Entity being queried
 * \param u Parametric position being queried
 * \param v Parametric position being queried
 * \param nrml_i Normal at specified position
 * \param nrml_j Normal at specified position
 * \param nrml_k Normal at specified position
 */
  void iGeom_getEntNrmlUV( iGeom_Instance,
                           iBase_EntityHandle entity_handle,
                           double u,
                           double v,
                           double* nrml_i,
                           double* nrml_j,
                           double* nrml_k,
                           int* err );

/**\brief Return the normals at a specified parametric positions
 * Return the normals at a specified parametric positions.  If either the number of 
 * entities or number of spatial 
 * coordinate triples is unity, then all points or entities are queried for that entity 
 * or point, respectively, otherwise each point corresponds to each entity.  storage_order 
 * should be a value in the iBase_StorageOrder enum; if input as iBase_UNKNOWN, order is in 
 * native order with respect to implementation.
 * \param entity_handle Entity being queried
 * \param u Parametric position being queried
 * \param v Parametric position being queried
 */
  void iGeom_getArrNrmlUV( iGeom_Instance,
                           iBase_EntityHandle const* face_handles,
                           int face_handles_size,
                           int storage_order,
                           double const* parameters,
                           int parameters_size,
                           double** normals,
                           int* normals_allocated,
                           int* normals_size,
                           int* err );

/**\brief 
 *
 */
  void iGeom_getEntTgntU( iGeom_Instance,
                          iBase_EntityHandle entity_handle,
                          double u,
                          double* tgnt_i,
                          double* tgnt_j,
                          double* tgnt_k,
                          int* err );

/**\brief 
 *
 */
  void iGeom_getArrTgntU( iGeom_Instance,
                          iBase_EntityHandle const* edge_handles,
                          int edge_handles_size,
                          int storage_order,
                          double const* parameters,
                          int parameters_size,
                          double** tangents,
                          int* tangents_allocated,
                          int* tangents_size,
                          int* err );

/**\brief 
 *
 */
  void iGeom_getEnt1stDrvt( iGeom_Instance,
                            iBase_EntityHandle entity_handle,
                            double u,
                            double v,
                            double** drvt_u,
                            int* drvt_u_allocated,
                            int* drvt_u_size,
                            double** drvt_v,
                            int* dvrt_v_allocated,
                            int* dvrt_v_size,
                            int* err );

/**\brief 
 *
 */
  void iGeom_getArr1stDrvt( iGeom_Instance,
                            iBase_EntityHandle const* entity_handles,
                            int entity_handles_size,
                            int storage_order,
                            double const* uv,
                            int uv_size,
                            double** dvtr_u,
                            int* dvrt_u_allocated,
                            int* dvrt_u_size,
                            int** u_offset,
                            int* u_offset_allocated,
                            int* u_offset_size,
                            double** dvrt_v,
                            int* dvrt_v_allocated,
                            int* dvrt_v_size,
                            int** v_offset,
                            int* v_offset_allocated,
                            int* v_offset_size,
                            int* err );

/**\brief 
 *
 */
  void iGeom_getEnt2ndDrvt( iGeom_Instance,
                            iBase_EntityHandle entity_handle,
                            double u,
                            double v,
                            double** drvt_uu,
                            int* drvt_uu_allocated,
                            int* drvt_uu_size,
                            double** drvt_vv,
                            int* dvrt_vv_allocated,
                            int* dvrt_vv_size,
                            double** drvt_uv,
                            int* dvrt_uv_allocated,
                            int* dvrt_uv_size,
                            int* err );

/**\brief 
 *
 */
  void iGeom_getArr2ndDrvt( iGeom_Instance,
                            iBase_EntityHandle const* entity_handles,
                            int entity_handles_size,
                            int storage_order,
                            double const* uv,
                            int uv_size,
                            double** dvtr_uu,
                            int* dvrt_uu_allocated,
                            int* dvrt_uu_size,
                            int** uu_offset,
                            int* uu_offset_allocated,
                            int* uu_offset_size,
                            double** dvtr_vv,
                            int* dvrt_vv_allocated,
                            int* dvrt_vv_size,
                            int** vv_offset,
                            int* vv_offset_allocated,
                            int* vv_offset_size,
                            double** dvrt_uv,
                            int* dvrt_uv_allocated,
                            int* dvrt_uv_size,
                            int** uv_offset,
                            int* uv_offset_allocated,
                            int* uv_offset_size,
                            int* err );

/**\brief 
 *
 */
  void iGeom_getFcCvtrUV( iGeom_Instance,
                          iBase_EntityHandle entity_handle,
                          double u,
                          double v,
                          double* cvtr1_i,
                          double* cvtr1_j,
                          double* cvtr1_k,
                          double* cvtr2_i,
                          double* cvtr2_j,
                          double* cvtr2_k,
                          int* err );

/**\brief 
 *
 */
  void iGeom_getFcArrCvtrUV( iGeom_Instance,
                             iBase_EntityHandle const* face_handles,
                             int face_handles_size,
                             int storage_order,
                             double const* uv,
                             int uv_size,
                             double** cvtr_1,
                             int* cvtr_1_allocated,
                             int* cvtr_1_size,
                             double** cvtr_2,
                             int* cvtr_2_allocated,
                             int* cvtr_2_size,
                             int* err );

/**\brief 
 *
 */
  void iGeom_isEntPeriodic( iGeom_Instance,
                            iBase_EntityHandle entity_handle,
                            int* in_u,
                            int* in_v,
                            int* err );

/**\brief 
 *
 */
  void iGeom_isArrPeriodic( iGeom_Instance,
                            iBase_EntityHandle const* entity_handles,
                            int entity_handles_size,
                            int** in_uv,
                            int* in_uv_allocated,
                            int* in_uv_size,
                            int* err );

/**\brief 
 *
 */
  void iGeom_isFcDegenerate( iGeom_Instance,
                             iBase_EntityHandle face_handle,
                             int* is_degenerate,
                             int* err );

/**\brief 
 *
 */
  void iGeom_isFcArrDegenerate( iGeom_Instance,
                                iBase_EntityHandle const* face_handles,
                                int face_handles_size,
                                int** degenerate,
                                int* degenerate_allocated,
                                int* degenerate_size,
                                int* err );

/**\brief 
 *
 */
  void iGeom_getTolerance( iGeom_Instance,
                           int* type,
                           double* tolerance,
                           int* err );

/**\brief 
 *
 */
  void iGeom_getEntTolerance( iGeom_Instance,
                              iBase_EntityHandle entity_handle,
                              double* tolerance,
                              int* err );

/**\brief 
 *
 */
  void iGeom_getArrTolerance( iGeom_Instance,
                              iBase_EntityHandle const* entity_handles,
                              int entity_handles_size,
                              double** tolerances,
                              int* tolerances_allocated,
                              int* tolerances_size,
                              int* err );

    /**\brief  Initialize an iterator over specified entity type, topology, and size
     *
     * Initialize an iterator over specified entity type, topology, and size,
     * for a specified set or instance.  Iterator returned can be used as input
     * to functions returning the entity for the iterator.  If all entities of 
     * a specified type and/or topology are to be iterated, specify 
     * iBase_ALL_TYPES or iGeom_ALL_TOPOLOGIES, respectively.  Specified type 
     * or topology must be a value in the iBase_EntityType or 
     * iGeom_EntityTopology enumerations, respectively.
     * \param instance iGeom instance handle
     * \param entity_set_handle Entity set being iterated
     * \param requested_entity_type Type of entity to iterate
     * \param requested_entity_topology Topology of entity to iterate
     * \param entity_iterator Pointer to iterator returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_initEntIter( iGeom_Instance,
                          iBase_EntitySetHandle entity_set_handle,
                          int entity_dimension,
                          iGeom_EntityIterator* entity_iterator,
                          int* err );

    /**\brief Initialize an array iterator over specified entity type, topology, and 
     *        size
     *
     * Initialize an array iterator over specified entity type, topology, and 
     * size, for a specified set or instance.  Iterator returned can be used 
     * as input to functions returning entities for the iterator.  If all 
     * entities of a specified type and/or topology are to be iterated, 
     * specify iBase_ALL_TYPES or iGeom_ALL_TOPOLOGIES, respectively.  
     * Specified type or topology must be a value in the iBase_EntityType or 
     * iGeom_EntityTopology enumerations, respectively.
     * \param instance iGeom instance handle
     * \param entity_set_handle Entity set being iterated
     * \param requested_entity_type Type of entity to iterate
     * \param requested_entity_topology Topology of entity to iterate
     * \param requested_array_size Size of chunks of handles returned for each
     *        value of the iterator
     * \param entArr_iterator Pointer to iterator returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_initEntArrIter( iGeom_Instance,
                             iBase_EntitySetHandle entity_set_handle,
                             int entity_dimension,
                             int requested_array_size,
                             iGeom_EntityArrIterator* entArr_iterator,
                             int* err );

    /**\brief  Get entity corresponding to an iterator and increment iterator
     *
     * Get the entity corresponding to an array iterator, and increment the 
     * iterator.  Also return whether the next value of the iterator has
     * an entity (if non-zero, next iterator value is the end of the
     * iteration).
     * \param instance iGeom instance handle
     * \param entity_iterator Iterator being queried
     * \param entity_handle Pointer to an entity handle corresponding to the
     *        current value of iterator
     * \param has_data Pointer to flag; if returned non-zero, next iterator
     *        has an entity
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getNextEntIter( iGeom_Instance,
                             iGeom_EntityIterator,
                             iBase_EntityHandle* entity_handle,
                             int* has_data,
                             int* err );

    /**\brief  Get entities contained in array iterator and increment iterator
     *
     * Get the entities contained in an array iterator, and increment the 
     * iterator.  Also return whether the next value of the iterator has
     * any entities (if non-zero, next iterator value is the end of the
     * iteration).
     * \param instance iGeom instance handle
     * \param entArr_iterator Iterator being queried
     * \param *entity_handles Pointer to array of entity handles contained in
     *        current value of iterator
     * \param *entity_handles_allocated Pointer to allocated size of 
     *        entity_handles array
     * \param *entity_handles_size Pointer to occupied size of entity_handles 
     *        array
     * \param has_data Pointer to flag; if returned non-zero, next iterator
     *        has a non-zero number of entities
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getNextEntArrIter( iGeom_Instance,
                                iGeom_EntityArrIterator,
                                iBase_EntityHandle** entity_handles,
                                int* entity_handles_allocated,
                                int* entity_handles_size,
                                int* has_data,
                                int* err );

    /**\brief  Reset the iterator
     *
     * Reset the iterator
     * \param instance iGeom instance handle
     * \param entity_iterator Iterator to reset
     * \param *err Pointer to error type returned from function
     */
  void iGeom_resetEntIter( iGeom_Instance,
                           iGeom_EntityIterator,
                           int* err );

    /**\brief  Reset the array iterator
     *
     * Reset the array iterator
     * \param instance iGeom instance handle
     * \param entArr_iterator Iterator to reset
     * \param *err Pointer to error type returned from function
     */
  void iGeom_resetEntArrIter( iGeom_Instance,
                              iGeom_EntityArrIterator,
                              int* err );

    /**\brief  Destroy the specified iterator
     *
     * Destroy the specified iterator
     * \param instance iGeom instance handle
     * \param entity_iterator Iterator which gets destroyed
     * \param *err Pointer to error type returned from function
     */
  void iGeom_endEntIter( iGeom_Instance, iGeom_EntityIterator, int* err );

    /**\brief  Destroy the specified array iterator
     *
     * Destroy the specified array iterator
     * \param instance iGeom instance handle
     * \param entArr_iterator Iterator which gets destroyed
     * \param *err Pointer to error type returned from function
     */
  void iGeom_endEntArrIter( iGeom_Instance, iGeom_EntityArrIterator, int* err );

/**\brief 
 *
 */
  void iGeom_copyEnt( iGeom_Instance,
                      iBase_EntityHandle source,
                      iBase_EntityHandle* copy,
                      int* err );

/**\brief 
 *
 */
  void iGeom_sweepEntAboutAxis( iGeom_Instance,
                                iBase_EntityHandle geom_entity,
                                double angle,
                                double axis_normal_x,
                                double axis_normal_y,
                                double axis_normal_z,
                                iBase_EntityHandle* geom_entity2,
                                int* err );

  /**\brief Delete all entities and sets
   */
  void iGeom_deleteAll( iGeom_Instance, int* err );

    /**\brief  Delete specified entity
     *
     * Delete specified entity
     * \param instance iGeom instance handle
     * \param entity_handle Entity to be deleted
     * \param *err Pointer to error type returned from function
     */
  void iGeom_deleteEnt( iGeom_Instance,
                        iBase_EntityHandle,
                        int* err );

    /**\brief Create a sphere centered on the origin
     */
  void iGeom_createSphere( iGeom_Instance,
                           double radius,
                           iBase_EntityHandle* sphere_handle_out,
                           int* err );

/**\brief Create a prism centered on the origin
 */
void iGeom_createPrism( iGeom_Instance,
                   double height,
		   int n_sides,
		   double major_rad,
	           double minor_rad,
	           iBase_EntityHandle* prism_handle_out,
                   int* err );

/**\brief 
 *
 */
  void iGeom_createBrick( iGeom_Instance,
                          double x,
                          double y,
                          double z,
                          iBase_EntityHandle* geom_entity,
                          int* err );

/**\brief 
 *
 */
  void iGeom_createCylinder( iGeom_Instance,
                             double height,
                             double major_rad,
                             double minor_rad,
                             iBase_EntityHandle* geom_entity,
                             int* err );

/**\brief 
 *
 */
  void iGeom_createTorus( iGeom_Instance,
                          double major_rad,
                          double minor_rad,
                          iBase_EntityHandle* geom_entity,
                          int* err );

/**\brief 
 *
 */
  void iGeom_moveEnt( iGeom_Instance,
                      iBase_EntityHandle geom_entity,
                      double x,
                      double y,
                      double z,
                      int* err );

/**\brief 
 *
 */
  void iGeom_rotateEnt( iGeom_Instance,
                        iBase_EntityHandle geom_entity,
                        double angle,
                        double axis_normal_x,
                        double axis_normal_y,
                        double axis_normal_z,
                        int* err );

/**\brief 
 *
 */
  void iGeom_reflectEnt( iGeom_Instance,
                         iBase_EntityHandle geom_entity,
                         double plane_normal_x,
                         double plane_normal_y,
                         double plane_normal_z,
                         int* err );

/**\brief 
 *
 */
  void iGeom_scaleEnt( iGeom_Instance,
                       iBase_EntityHandle geom_entity,
                       double scale_x,
                       double scale_y,
                       double scale_z,
                       int* err );

/**\brief 
 *
 */
  void iGeom_uniteEnts( iGeom_Instance,
                        iBase_EntityHandle const* geom_entities,
                        int geom_entities_size,
                        iBase_EntityHandle* geom_entity,
                        int* err );

/**\brief 
 *
 */
  void iGeom_subtractEnts( iGeom_Instance,
                           iBase_EntityHandle blank,
                           iBase_EntityHandle tool,
                           iBase_EntityHandle* geom_entity,
                           int* err );

/**\brief
 */
  void iGeom_intersectEnts( iGeom_Instance,
                            iBase_EntityHandle entity2,
			    iBase_EntityHandle entity1,
			    iBase_EntityHandle* geom_entity,
			    int* err );

/**\brief 
 *
 */
  void iGeom_sectionEnt( iGeom_Instance,
                         iBase_EntityHandle geom_entity,
                         double plane_normal_x,
                         double plane_normal_y,
                         double plane_normal_z,
                         double offset,
                         int reverse,
                         iBase_EntityHandle* geom_entity2,
                         int* err );

/**\brief 
 *
 */
  void iGeom_imprintEnts( iGeom_Instance,
                          iBase_EntityHandle const* geom_entities,
                          int geom_entities_size,
                          int* err );

/**\brief 
 *
 */
  void iGeom_mergeEnts( iGeom_Instance,
                        iBase_EntityHandle const* geom_entities,
                        int geom_entities_size,
                        double tolerance,
                        int* err );


    /**\brief  Create an entity set
     *
     * Create an entity set, either ordered (isList=1) or unordered 
     * (isList=0).  Unordered entity sets can contain a given entity or 
     * set only once.
     * \param instance iGeom instance handle
     * \param isList If non-zero, an ordered list is created, otherwise an
     *        unordered set is created.
     * \param entity_set_created Entity set created by function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_createEntSet(iGeom_Instance instance,
                          int isList,
                          iBase_EntitySetHandle* entity_set_created, 
                          int *err);


    /**\brief  Destroy an entity set
     *
     * Destroy an entity set
     * \param instance iGeom instance handle
     * \param entity_set Entity set to be destroyed
     * \param *err Pointer to error type returned from function
     */
  void iGeom_destroyEntSet(iGeom_Instance instance,
                           iBase_EntitySetHandle entity_set, 
                           int *err);

    /**\brief  Return whether a specified set is ordered or unordered
     *
     * Return whether a specified set is ordered (*is_list=1) or 
     * unordered (*is_list=0)
     * \param instance iGeom instance handle
     * \param entity_set Entity set being queried
     * \param is_list Pointer to flag returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_isList(iGeom_Instance instance,
                    iBase_EntitySetHandle entity_set,
                    int *is_list, 
                    int *err);

    /**\brief  Get the number of entity sets contained in a set or interface
     *
     * Get the number of entity sets contained in a set or interface.  If
     * a set is input which is not the root set, num_hops indicates the 
     * maximum number of contained sets from entity_set_handle to one of the
     * contained sets, inclusive of the contained set.
     * \param instance iGeom instance handle
     * \param entity_set_handle Entity set being queried
     * \param num_hops Maximum hops from entity_set_handle to contained set,
     *        inclusive of the contained set
     * \param num_sets Pointer to the number of sets returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getNumEntSets(iGeom_Instance instance,
                           iBase_EntitySetHandle entity_set_handle,
                           int num_hops,
                           int *num_sets, 
                           int *err);


    /**\brief  Get the entity sets contained in a set or interface
     *
     * Get the entity sets contained in a set or interface.  If
     * a set is input which is not the root set, num_hops indicates the 
     * maximum number of contained sets from entity_set_handle to one of the
     * contained sets, inclusive of the contained set.
     * \param instance iGeom instance handle
     * \param entity_set_handle Entity set being queried
     * \param num_hops Maximum hops from entity_set_handle to contained set,
     *        inclusive of the contained set
     * \param *contained_set_handles Pointer to array of set handles returned
     *        from function
     * \param contained_set_handles_allocated Pointer to allocated length of
     *        contained_set_handles array
     * \param contained_set_handles_size Pointer to occupied length of
     *        contained_set_handles array
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getEntSets(iGeom_Instance instance,
                        iBase_EntitySetHandle entity_set_handle,
                        int num_hops,
                        iBase_EntitySetHandle** contained_set_handles,
                        int* contained_set_handles_allocated,
                        int* contained_set_handles_size, 
                        int *err);

    /**\brief  Add an entity to a set
     *
     * Add an entity to a set
     * \param instance iGeom instance handle
     * \param entity_handle The entity being added
     * \param entity_set Pointer to the set being added to
     * \param *err Pointer to error type returned from function
     */
  void iGeom_addEntToSet(iGeom_Instance instance,
                         iBase_EntityHandle entity_handle,
                         iBase_EntitySetHandle entity_set, 
                         int *err);

    /**\brief  Remove an entity from a set
     *
     * Remove an entity from a set
     *
     * \param instance iGeom instance handle
     * \param entity_handle The entity being removed
     * \param entity_set Pointer to the set being removed from
     * \param *err Pointer to error type returned from function
     */
  void iGeom_rmvEntFromSet(iGeom_Instance instance,
                           iBase_EntityHandle entity_handle,
                           iBase_EntitySetHandle entity_set, 
                           int *err);


    /**\brief  Add an array of entities to a set
     *
     * Add an array of entities to a set
     * \param instance iGeom instance handle
     * \param entity_handles Array of entities being added
     * \param entity_handles_size Number of entities in entity_handles array
     * \param entity_set Pointer to the set being added to
     * \param *err Pointer to error type returned from function
     */
  void iGeom_addEntArrToSet(iGeom_Instance instance,
                            const iBase_EntityHandle* entity_handles,
                            int entity_handles_size,
                            iBase_EntitySetHandle entity_set, 
                            int *err);


    /**\brief  Remove an array of entities from a set
     *
     * Remove an array of entities from a set
     * \param instance iGeom instance handle
     * \param entity_handles Array of entities being remove
     * \param entity_handles_size Number of entities in entity_handles array
     * \param entity_set Pointer to the set being removed from
     * \param *err Pointer to error type returned from function
     */
  void iGeom_rmvEntArrFromSet(iGeom_Instance instance,
                              const iBase_EntityHandle* entity_handles,
                              int entity_handles_size,
                              iBase_EntitySetHandle entity_set,
                              int *err);


    /**\brief  Add an entity set to a set
     *
     * Add an entity set to a set
     * \param instance iGeom instance handle
     * \param entity_set_to_add The entity set being added
     * \param entity_set_handle Pointer to the set being added to
     * \param *err Pointer to error type returned from function
     */
  void iGeom_addEntSet(iGeom_Instance instance,
                       iBase_EntitySetHandle entity_set_to_add,
                       iBase_EntitySetHandle entity_set_handle, 
                       int *err);


    /**\brief  Remove an entity set from a set
     *
     * Remove an entity set from a set
     * \param instance iGeom instance handle
     * \param entity_set_to_remove The entity set being removed
     * \param entity_set_handle Pointer to the set being removed from
     * \param *err Pointer to error type returned from function
     */
  void iGeom_rmvEntSet(iGeom_Instance instance,
                       iBase_EntitySetHandle entity_set_to_remove,
                       iBase_EntitySetHandle entity_set_handle, 
                       int *err);

    /**\brief  Return whether an entity is contained in another set
     *
     * Return whether an entity is contained (*is_contained=1) or not 
     * contained (*is_contained=0) in another set
     * \param instance iGeom instance handle
     * \param containing_entity_set Entity set being queried
     * \param contained_entity Entity potentially contained in 
     *        containing_entity_set
     * \param is_contained Pointer to flag returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_isEntContained(iGeom_Instance instance,
                            iBase_EntitySetHandle containing_entity_set,
                            iBase_EntityHandle contained_entity,
                            int *is_contained, 
                            int *err);

    /**\brief  Return whether entities are contained in a set
     *
     * Return whether each entity is contained in the set.
     * \param instance iMesh instance handle
     * \param containing_entity_set Entity set being queried
     * \param entity_handles List of entities for which to check containment.
     * \param is_contained One value for each input entity, 1 if contained
     *          in set, zero otherwise.
     * \param *err Pointer to error type returned from function
     */
  void iGeom_isEntArrContained( iGeom_Instance instance,
                         /*in*/ iBase_EntitySetHandle containing_set,
                         /*in*/ const iBase_EntityHandle* entity_handles,
                         /*in*/ int num_entity_handles,
                      /*inout*/ int** is_contained,
                      /*inout*/ int* is_contained_allocated,
                        /*out*/ int* is_contained_size,
                        /*out*/ int* err );

    /**\brief  Return whether an entity set is contained in another set
     *
     * Return whether a set is contained (*is_contained=1) or not contained
     * (*is_contained=0) in another set
     * \param instance iGeom instance handle
     * \param containing_entity_set Entity set being queried
     * \param contained_entity_set Entity set potentially contained in 
     *        containing_entity_set
     * \param is_contained Pointer to flag returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_isEntSetContained(iGeom_Instance instance,
                               iBase_EntitySetHandle containing_entity_set,
                               iBase_EntitySetHandle contained_entity_set,
                               int *is_contained, 
                               int *err);

    /**\brief  Add parent/child links between two sets
     *
     * Add parent/child links between two sets.  Makes parent point to child
     * and child point to parent.
     * \param instance iGeom instance handle
     * \param parent_entity_set Pointer to parent set
     * \param child_entity_set Pointer to child set
     * \param *err Pointer to error type returned from function
     */
  void iGeom_addPrntChld(iGeom_Instance instance,
                         iBase_EntitySetHandle parent_entity_set,
                         iBase_EntitySetHandle child_entity_set, 
                         int *err);

    /**\brief  Remove parent/child links between two sets
     *
     * Remove parent/child links between two sets.
     * \param instance iGeom instance handle
     * \param parent_entity_set Pointer to parent set
     * \param child_entity_set Pointer to child set
     * \param *err Pointer to error type returned from function
     */
  void iGeom_rmvPrntChld(iGeom_Instance instance,
                         iBase_EntitySetHandle parent_entity_set,
                         iBase_EntitySetHandle child_entity_set, 
                         int *err);

    /**\brief  Return whether two sets are related by parent/child links
     *
     * Return whether two sets are related (*is_child=1) or not (*is_child=0)
     * by parent/child links
     * \param instance iGeom instance handle
     * \param parent_entity_set Pointer to parent set
     * \param child_entity_set Pointer to child set
     * \param is_child Pointer to flag returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_isChildOf(iGeom_Instance instance,
                       iBase_EntitySetHandle parent_entity_set,
                       iBase_EntitySetHandle child_entity_set,
                       int *is_child, 
                       int *err);

    /**\brief  Get the number of child sets linked from a specified set
     *
     * Get the number of child sets linked from a specified set.  If num_hops
     * is non-zero, this represents the maximum hops from entity_set to any
     * child in the count.
     * \param instance iGeom instance handle
     * \param entity_set Entity set being queried
     * \param num_hops Maximum hops from entity_set_handle to child set,
     *        inclusive of the child set
     * \param num_child Pointer to number of children returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getNumChld(iGeom_Instance instance,
                        iBase_EntitySetHandle entity_set,
                        int num_hops,
                        int *num_child, 
                        int *err);

    /**\brief  Get the number of parent sets linked from a specified set
     *
     * Get the number of parent sets linked from a specified set.  If num_hops
     * is non-zero, this represents the maximum hops from entity_set to any
     * parent in the count.
     * \param instance iGeom instance handle
     * \param entity_set Entity set being queried
     * \param num_hops Maximum hops from entity_set_handle to parent set,
     *        inclusive of the parent set
     * \param num_parent Pointer to number of parents returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getNumPrnt(iGeom_Instance instance,
                        iBase_EntitySetHandle entity_set,
                        int num_hops,
                        int *num_parent, 
                        int *err);

    /**\brief  Get the child sets linked from a specified set
     *
     * Get the child sets linked from a specified set.  If num_hops
     * is non-zero, this represents the maximum hops from entity_set to any
     * child.
     * \param instance iGeom instance handle
     * \param from_entity_set Entity set being queried
     * \param num_hops Maximum hops from entity_set_handle to child set,
     *        inclusive of the child set
     * \param *entity_set_handles Pointer to array of child sets
     *        returned from function
     * \param *entity_set_handles_allocated Pointer to allocated size of 
     *        entity_set_handles array
     * \param *entity_set_handles_size Pointer to occupied size of 
     *        entity_set_handles array
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getChldn(iGeom_Instance instance,
                      iBase_EntitySetHandle from_entity_set,
                      int num_hops,
                      iBase_EntitySetHandle** entity_set_handles,
                      int* entity_set_handles_allocated,
                      int* entity_set_handles_size, 
                      int *err);

    /**\brief  Get the parent sets linked from a specified set
     *
     * Get the parent sets linked from a specified set.  If num_hops
     * is non-zero, this represents the maximum hops from entity_set to any
     * parent.
     * \param instance iGeom instance handle
     * \param from_entity_set Entity set being queried
     * \param num_hops Maximum hops from entity_set_handle to parent set,
     *        inclusive of the parent set
     * \param *entity_set_handles Pointer to array of parent sets
     *        returned from function
     * \param *entity_set_handles_allocated Pointer to allocated size of 
     *        entity_set_handles array
     * \param *entity_set_handles_size Pointer to occupied size of 
     *        entity_set_handles array
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getPrnts(iGeom_Instance instance,
                      iBase_EntitySetHandle from_entity_set,
                      int num_hops,
                      iBase_EntitySetHandle** entity_set_handles,
                      int* entity_set_handles_allocated,
                      int* entity_set_handles_size, 
                      int *err);

    /**\brief  Create a tag with specified name, size, and type
     *
     * Create a tag with specified name, size, and type.  Tag size is in
     * units of size of tag_type data types.  Value input for tag type must be 
     * value in iBase_TagType enumeration.
     * \param instance iGeom instance handle
     * \param tag_name Character string indicating tag name
     * \param tag_size Size of each tag value, in units of number of tag_type 
     *        entities
     * \param tag_type Data type for data stored in this tag
     * \param tag_handle Pointer to tag handle returned from function
     * \param *err Pointer to error type returned from function
     * \param tag_name_len Length of tag name string
     */
  void iGeom_createTag(iGeom_Instance instance,
                       const char* tag_name,
                       int tag_size,
                       int tag_type,
                       iBase_TagHandle* tag_handle, 
                       int *err,
                       int tag_name_len );


    /**\brief  Destroy a tag
     *
     * Destroy a tag.  If forced is non-zero and entities still have values
     * set for this tag, tag is deleted anyway and those values disappear,
     * otherwise tag is not deleted.
     * \param instance iGeom instance handle
     * \param tag_handle Handle of tag to be deleted
     * \param forced If non-zero, delete the tag even if entities have values
     *        set for that tag
     * \param *err Pointer to error type returned from function
     */
  void iGeom_destroyTag(iGeom_Instance instance,
                        iBase_TagHandle tag_handle,
                        int forced, 
                        int *err);

    /**\brief  Get the name for a given tag handle
     *
     * Get the name for a given tag handle
     * \param instance iGeom instance handle
     * \param tag_handle Tag handle being queried
     * \param name Pointer to character string to store name returned from 
     *        function
     * \param *err Pointer to error type returned from function
     * \param name_len Length of character string input to function
     */
  void iGeom_getTagName(iGeom_Instance instance,
                        iBase_TagHandle tag_handle,
                        char *name, 
                        int* err,
                        int name_len);

    /**\brief  Get size of a tag in units of numbers of tag data type
     *
     * Get size of a tag in units of numbers of tag data type
     * \param instance iGeom instance handle
     * \param tag_handle Handle of tag being queried
     * \param tag_size Pointer to tag size returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getTagSizeValues(iGeom_Instance instance,
                              iBase_TagHandle tag_handle,
                              int *tag_size, 
                              int *err);

    /**\brief  Get size of a tag in units of bytes
     *
     * Get size of a tag in units of bytes
     * \param instance iGeom instance handle
     * \param tag_handle Handle of tag being queried
     * \param tag_size Pointer to tag size returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getTagSizeBytes(iGeom_Instance instance,
                             iBase_TagHandle tag_handle,
                             int *tag_size, 
                             int *err);

    /**\brief  Get a the handle of an existing tag with the specified name
     *
     * Get a the handle of an existing tag with the specified name
     * \param instance iGeom instance handle
     * \param tag_name Name of tag being queried
     * \param tag_handle Pointer to tag handle returned from function
     * \param *err Pointer to error type returned from function
     * \param tag_name_len Length of tag name string
     */
  void iGeom_getTagHandle(iGeom_Instance instance,
                          const char* tag_name,
                          iBase_TagHandle *tag_handle, 
                          int *err,
                          int tag_name_len);

    /**\brief  Get the data type of the specified tag handle
     *
     * Get the data type of the specified tag handle.  Tag type is a value in
     * the iBase_TagType enumeration.
     * \param instance iGeom instance handle
     * \param tag_handle Handle for the tag being queried
     * \param tag_type Pointer to tag type returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getTagType(iGeom_Instance instance,
                        iBase_TagHandle tag_handle,
                        int *tag_type, 
                        int *err);


    /**\brief  Set a tag value of arbitrary type on an entity set
     *
     * Set a tag value of arbitrary type on an entity set.  Tag data is 
     * passed as char* type,
     * but really represents pointer to arbitrary data.
     * \param instance iGeom instance handle
     * \param entity_set_handle Entity set on which tag is being set
     * \param tag_handle Tag being set on an entity set
     * \param tag_value Pointer to tag data being set on entity set
     * \param tag_value_size Size in bytes of tag data
     * \param *err Pointer to error type returned from function
     */
  void iGeom_setEntSetData(iGeom_Instance instance,
                           iBase_EntitySetHandle entity_set_handle,
                           iBase_TagHandle tag_handle,
                           const char* tag_value,
                           int tag_value_size, 
                           int *err);


    /**\brief  Set a tag value of integer type on an entity set
     *
     * Set a tag value of integer type on an entity set.
     * \param instance iGeom instance handle
     * \param entity_set Entity set on which tag is being set
     * \param tag_handle Tag being set on an entity set
     * \param tag_value Tag value being set on entity set
     * \param *err Pointer to error type returned from function
     */
  void iGeom_setEntSetIntData(iGeom_Instance instance,
                              iBase_EntitySetHandle entity_set,
                              iBase_TagHandle tag_handle,
                              int tag_value, 
                              int *err);


    /**\brief  Set a tag value of double type on an entity set
     *
     * Set a tag value of double type on an entity set.
     * \param instance iGeom instance handle
     * \param entity_set Entity set on which tag is being set
     * \param tag_handle Tag being set on an entity set
     * \param tag_value Tag value being set on entity set
     * \param *err Pointer to error type returned from function
     */
  void iGeom_setEntSetDblData(iGeom_Instance instance,
                              iBase_EntitySetHandle entity_set,
                              iBase_TagHandle tag_handle,
                              double tag_value, 
                              int *err);


    /**\brief  Set a tag value of entity handle type on an entity set
     *
     * Set a tag value of entity handle type on an entity set.
     * \param instance iGeom instance handle
     * \param entity_set Entity set on which tag is being set
     * \param tag_handle Tag being set on an entity set
     * \param tag_value Tag value being set on entity set
     * \param *err Pointer to error type returned from function
     */
  void iGeom_setEntSetEHData(iGeom_Instance instance,
                             iBase_EntitySetHandle entity_set,
                             iBase_TagHandle tag_handle,
                             iBase_EntityHandle tag_value, 
                             int *err);


    /**\brief  Get the value of a tag of arbitrary type on an entity set
     *
     * Get the value of a tag of arbitrary type on an entity set.  Tag data 
     * is passed back as char* type, but really represents arbitrary data.
     * \param instance iGeom instance handle
     * \param entity_set_handle Entity set on which tag is being set
     * \param tag_handle Tag being set on an entity set
     * \param *tag_value Pointer to tag data array being queried
     * \param *tag_value_allocated Pointer to tag data array allocated size
     * \param *tag_value_size Pointer to tag data array occupied size
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getEntSetData(iGeom_Instance instance,
                           iBase_EntitySetHandle entity_set_handle,
                           iBase_TagHandle tag_handle,
                           char** tag_value,
                           int* tag_value_allocated,
                           int* tag_value_size, 
                           int *err);

    /**\brief  Get the value of a tag of integer type on an entity set
     *
     * Get the value of a tag of integer type on an entity set.
     * \param instance iGeom instance handle
     * \param entity_set Entity set on which tag is being set
     * \param tag_handle Tag being set on an entity set
     * \param *out_data Pointer to tag value returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getEntSetIntData(iGeom_Instance instance,
                              iBase_EntitySetHandle entity_set,
                              iBase_TagHandle tag_handle,
                              int *out_data, 
                              int *err);

    /**\brief  Get the value of a tag of double type on an entity set
     *
     * Get the value of a tag of double type on an entity set.
     * \param instance iGeom instance handle
     * \param entity_set Entity set on which tag is being set
     * \param tag_handle Tag being set on an entity set
     * \param *out_data Pointer to tag value returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getEntSetDblData(iGeom_Instance instance,
                              iBase_EntitySetHandle entity_set,
                              iBase_TagHandle tag_handle,
                              double *out_data, 
                              int *err);

    /**\brief  Get the value of a tag of entity handle type on an entity set
     *
     * Get the value of a tag of entity handle type on an entity set.
     * \param instance iGeom instance handle
     * \param entity_set Entity set on which tag is being set
     * \param tag_handle Tag being set on an entity set
     * \param *out_data Pointer to tag value returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getEntSetEHData(iGeom_Instance instance,
                             iBase_EntitySetHandle entity_set,
                             iBase_TagHandle tag_handle,
                             iBase_EntityHandle *out_data, 
                             int *err);

    /**\brief  Get all the tags associated with a specified entity set
     *
     * Get all the tags associated with a specified entity set
     * \param instance iGeom instance handle
     * \param entity_set_handle Entity being queried
     * \param *tag_handles Pointer to array of tag_handles returned from 
     *        function
     * \param *tag_handles_allocated Pointer to allocated size of tag_handles 
     *        array
     * \param *tag_handles_size Pointer to occupied size of tag_handles array
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getAllEntSetTags(iGeom_Instance instance,
                              iBase_EntitySetHandle entity_set_handle,
                              iBase_TagHandle** tag_handles,
                              int* tag_handles_allocated,
                              int* tag_handles_size, 
                              int *err);

    /**\brief  Remove a tag value from an entity set
     *
     * Remove a tag value from an entity set
     * \param instance iGeom instance handle
     * \param entity_set_handle Entity set from which tag is being removed
     * \param tag_handle Tag handle of tag being removed
     * \param *err Pointer to error type returned from function
     */
  void iGeom_rmvEntSetTag(iGeom_Instance instance,
                          iBase_EntitySetHandle entity_set_handle,
                          iBase_TagHandle tag_handle, 
                          int *err);


    /**\brief  Get tag values of arbitrary type for an array of entities
     *
     * Get tag values of arbitrary type for an array of entities.  Tag data 
     * is returned as char* type, but really represents arbitrary data.
     * \param instance iGeom instance handle
     * \param entity_handles Entity array on which tag is being set
     * \param entity_handles_size Number of entities in array
     * \param tag_handle Tag being set on an entity
     * \param *tag_values Pointer to tag data array being returned from 
     *        function
     * \param tag_values_allocated Pointer to allocated size of tag data array
     * \param tag_values_size Pointer to occupied size of tag data array
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getArrData(iGeom_Instance instance,
                        const iBase_EntityHandle* entity_handles,
                        int entity_handles_size,
                        iBase_TagHandle tag_handle,
                        char** tag_values,
                        int* tag_values_allocated,
                        int* tag_values_size, 
                        int *err);

    /**\brief  Get tag values of integer type for an array of entities
     *
     * Get tag values of integer type for an array of entities.
     * \param instance iGeom instance handle
     * \param entity_handles Entity array on which tag is being set
     * \param entity_handles_size Number of entities in array
     * \param tag_handle Tag being set on an entity
     * \param *tag_values Pointer to tag data array being returned from 
     *        function
     * \param tag_values_allocated Pointer to allocated size of tag data array
     * \param tag_values_size Pointer to occupied size of tag data array
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getIntArrData(iGeom_Instance instance,
                           const iBase_EntityHandle* entity_handles,
                           int entity_handles_size,
                           iBase_TagHandle tag_handle,
                           int** tag_values,
                           int* tag_values_allocated,
                           int* tag_values_size, 
                           int *err);

    /**\brief  Get tag values of double type for an array of entities
     *
     * Get tag values of double type for an array of entities.
     * \param instance iGeom instance handle
     * \param entity_handles Entity array on which tag is being set
     * \param entity_handles_size Number of entities in array
     * \param tag_handle Tag being set on an entity
     * \param *tag_values Pointer to tag data array being returned from 
     *        function
     * \param tag_values_allocated Pointer to allocated size of tag data array
     * \param tag_values_size Pointer to occupied size of tag data array
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getDblArrData(iGeom_Instance instance,
                           const iBase_EntityHandle* entity_handles,
                           int entity_handles_size,
                           iBase_TagHandle tag_handle,
                           double** tag_values,
                           int* tag_values_allocated,
                           int* tag_values_size, 
                           int *err);

    /**\brief  Get tag values of entity handle type for an array of entities
     *
     * Get tag values of entity handle type for an array of entities.
     * \param instance iGeom instance handle
     * \param entity_handles Entity array on which tag is being set
     * \param entity_handles_size Number of entities in array
     * \param tag_handle Tag being set on an entity
     * \param *tag_value Pointer to tag data array being returned from 
     *        function
     * \param tag_value_allocated Pointer to allocated size of tag data array
     * \param tag_value_size Pointer to occupied size of tag data array
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getEHArrData(iGeom_Instance instance,
                          const iBase_EntityHandle* entity_handles,
                          int entity_handles_size,
                          iBase_TagHandle tag_handle,
                          iBase_EntityHandle** tag_value,
                          int* tag_value_allocated,
                          int* tag_value_size, 
                          int *err);

    /**\brief  Set tag values of arbitrary type on an array of entities
     *
     * Set tag values of arbitrary type on an array of entities.  Tag data is 
     * passed as char* type, but really represents pointer to arbitrary data.
     * \param instance iGeom instance handle
     * \param entity_handles Entity array on which tag is being set
     * \param entity_handles_size Number of entities in array
     * \param tag_handle Tag being set on an entity
     * \param tag_values Pointer to tag data being set on entity
     * \param tag_values_size Size in total bytes of tag data
     * \param *err Pointer to error type returned from function
     */
  void iGeom_setArrData(iGeom_Instance instance,
                        const iBase_EntityHandle* entity_handles,
                        int entity_handles_size,
                        iBase_TagHandle tag_handle,
                        const char* tag_values,
                        int tag_values_size, 
                        int *err);

    /**\brief  Set tag values of integer type on an array of entities
     *
     * Set tag values of integer type on an array of entities.
     * \param instance iGeom instance handle
     * \param entity_handles Entity array on which tag is being set
     * \param entity_handles_size Number of entities in array
     * \param tag_handle Tag being set on an entity
     * \param tag_values Pointer to tag data being set on entities
     * \param tag_values_size Size in total number of integers of tag data
     * \param *err Pointer to error type returned from function
     */
  void iGeom_setIntArrData(iGeom_Instance instance,
                           const iBase_EntityHandle* entity_handles,
                           int entity_handles_size,
                           iBase_TagHandle tag_handle,
                           const int* tag_values,
                           int tag_values_size, 
                           int *err);

    /**\brief  Set tag values of double type on an array of entities
     *
     * Set tag values of double type on an array of entities.
     * \param instance iGeom instance handle
     * \param entity_handles Entity array on which tag is being set
     * \param entity_handles_size Number of entities in array
     * \param tag_handle Tag being set on an entity
     * \param tag_values Pointer to tag data being set on entities
     * \param tag_values_size Size in total number of doubles of tag data
     * \param *err Pointer to error type returned from function
     */
  void iGeom_setDblArrData(iGeom_Instance instance,
                           const iBase_EntityHandle* entity_handles,
                           int entity_handles_size,
                           iBase_TagHandle tag_handle,
                           const double* tag_values,
                           const int tag_values_size, 
                           int *err);

    /**\brief  Set tag values of entity handle type on an array of entities
     *
     * Set tag values of entity handle type on an array of entities.
     * \param instance iGeom instance handle
     * \param entity_handles Entity array on which tag is being set
     * \param entity_handles_size Number of entities in array
     * \param tag_handle Tag being set on an entity
     * \param tag_values Pointer to tag data being set on entities
     * \param tag_values_size Size in total number of entity handles of tag 
     *        data
     * \param *err Pointer to error type returned from function
     */
  void iGeom_setEHArrData(iGeom_Instance instance,
                          const iBase_EntityHandle* entity_handles,
                          int entity_handles_size,
                          iBase_TagHandle tag_handle,
                          const iBase_EntityHandle* tag_values,
                          int tag_values_size, 
                          int *err);

    /**\brief  Remove a tag value from an array of entities
     *
     * Remove a tag value from an array of entities
     * \param instance iGeom instance handle
     * \param entity_handles Entity from which tag is being removed
     * \param entity_handles_size Number of entities in entity array
     * \param tag_handle Tag handle of tag being removed
     * \param *err Pointer to error type returned from function
     */
  void iGeom_rmvArrTag(iGeom_Instance instance,
                       const iBase_EntityHandle* entity_handles,
                       int entity_handles_size,
                       iBase_TagHandle tag_handle, 
                       int *err);

    /**\brief  Get the value of a tag of arbitrary type on an entity
     *
     * Get the value of a tag of arbitrary type on an entity.  Tag data 
     * is passed back as char* type, but really represents arbitrary data.
     * \param instance iGeom instance handle
     * \param entity_handle Entity on which tag is being set
     * \param tag_handle Tag being set on an entity
     * \param *tag_value Pointer to tag data array being queried
     * \param *tag_value_allocated Pointer to tag data array allocated size
     * \param *tag_value_size Pointer to tag data array occupied size
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getData(iGeom_Instance instance,
                     iBase_EntityHandle entity_handle,
                     iBase_TagHandle tag_handle,
                     char** tag_value,
                     int *tag_value_allocated,
                     int *tag_value_size, 
                     int *err);

    /**\brief  Get the value of a tag of integer type on an entity
     *
     * Get the value of a tag of integer type on an entity.
     * \param instance iGeom instance handle
     * \param entity_handle Entity on which tag is being set
     * \param tag_handle Tag being set on an entity
     * \param *out_data Pointer to tag value returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getIntData(iGeom_Instance instance,
                        iBase_EntityHandle entity_handle,
                        iBase_TagHandle tag_handle,
                        int *out_data, 
                        int *err);

    /**\brief  Get the value of a tag of double type on an entity
     *
     * Get the value of a tag of double type on an entity.
     * \param instance iGeom instance handle
     * \param entity_handle Entity on which tag is being set
     * \param tag_handle Tag being set on an entity
     * \param *out_data Pointer to tag value returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getDblData(iGeom_Instance instance,
                        /*in*/ const iBase_EntityHandle entity_handle,
                        /*in*/ const iBase_TagHandle tag_handle,
                        double *out_data, int *err);

    /**\brief  Get the value of a tag of entity handle type on an entity
     *
     * Get the value of a tag of entity handle type on an entity.
     * \param instance iGeom instance handle
     * \param entity_handle Entity on which tag is being set
     * \param tag_handle Tag being set on an entity
     * \param *out_data Pointer to tag value returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getEHData(iGeom_Instance instance,
                       iBase_EntityHandle entity_handle,
                       iBase_TagHandle tag_handle,
                       iBase_EntityHandle *out_data, 
                       int *err);

    /**\brief  Set a tag value of arbitrary type on an entity
     *
     * Set a tag value of arbitrary type on an entity.  Tag data is 
     * passed as char* type, but really represents pointer to arbitrary data.
     * \param instance iGeom instance handle
     * \param entity_handle Entity on which tag is being set
     * \param tag_handle Tag being set on an entity
     * \param tag_value Pointer to tag data being set on entity
     * \param tag_value_size Size in bytes of tag data
     * \param *err Pointer to error type returned from function
     */
  void iGeom_setData(iGeom_Instance instance,
                     iBase_EntityHandle entity_handle,
                     iBase_TagHandle tag_handle,
                     const char* tag_value,
                     int tag_value_size, 
                     int *err);

    /**\brief  Set a tag value of integer type on an entity
     *
     * Set a tag value of integer type on an entity.
     * \param instance iGeom instance handle
     * \param entity_handle Entity on which tag is being set
     * \param tag_handle Tag being set on an entity
     * \param tag_value Tag value being set on entity
     * \param *err Pointer to error type returned from function
     */
  void iGeom_setIntData(iGeom_Instance instance,
                        iBase_EntityHandle entity_handle,
                        iBase_TagHandle tag_handle,
                        int tag_value, 
                        int *err);

    /**\brief  Set a tag value of double type on an entity
     *
     * Set a tag value of double type on an entity.
     * \param instance iGeom instance handle
     * \param entity_handle Entity on which tag is being set
     * \param tag_handle Tag being set on an entity
     * \param tag_value Tag value being set on entity
     * \param *err Pointer to error type returned from function
     */
  void iGeom_setDblData(iGeom_Instance instance,
                        iBase_EntityHandle entity_handle,
                        iBase_TagHandle tag_handle,
                        double tag_value, 
                        int *err);

    /**\brief  Set a tag value of entity handle type on an entity
     *
     * Set a tag value of entity handle type on an entity.
     * \param instance iGeom instance handle
     * \param entity_handle Entity on which tag is being set
     * \param tag_handle Tag being set on an entity
     * \param tag_value Tag value being set on entity
     * \param *err Pointer to error type returned from function
     */
  void iGeom_setEHData(iGeom_Instance instance,
                       iBase_EntityHandle entity_handle,
                       iBase_TagHandle tag_handle,
                       iBase_EntityHandle tag_value, 
                       int *err);

    /**\brief  Get all the tags associated with a specified entity handle
     *
     * Get all the tags associated with a specified entity handle
     * \param instance iGeom instance handle
     * \param entity_handle Entity being queried
     * \param *tag_handles Pointer to array of tag_handles returned from 
     *        function
     * \param *tag_handles_allocated Pointer to allocated size of tag_handles 
     *        array
     * \param *tag_handles_size Pointer to occupied size of tag_handles array
     * \param *err Pointer to error type returned from function
     */
  void iGeom_getAllTags(iGeom_Instance instance,
                        iBase_EntityHandle entity_handle,
                        iBase_TagHandle** tag_handles,
                        int* tag_handles_allocated,
                        int* tag_handles_size, 
                        int *err);

    /**\brief  Remove a tag value from an entity
     *
     * Remove a tag value from an entity
     * \param instance iGeom instance handle
     * \param entity_handle Entity from which tag is being removed
     * \param tag_handle Tag handle of tag being removed
     * \param *err Pointer to error type returned from function
     */
  void iGeom_rmvTag(iGeom_Instance instance,
                    iBase_EntityHandle entity_handle,
                    iBase_TagHandle tag_handle, 
                    int *err);

    /**\brief  Subtract contents of one entity set from another
     *
     * Subtract contents of one entity set from another
     * \param instance iGeom instance handle
     * \param entity_set_1 Entity set from which other set is being subtracted
     * \param entity_set_2 Entity set being subtracted from other set
     * \param result_entity_set Pointer to entity set returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_subtract(iGeom_Instance instance,
                      iBase_EntitySetHandle entity_set_1,
                      iBase_EntitySetHandle entity_set_2,
                      iBase_EntitySetHandle* result_entity_set, 
                      int *err);

    /**\brief  Intersect contents of one entity set with another
     *
     * Intersect contents of one entity set with another
     * \param instance iGeom instance handle
     * \param entity_set_1 Entity set being intersected with another
     * \param entity_set_2 Entity set being intersected with another
     * \param result_entity_set Pointer to entity set returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_intersect(iGeom_Instance instance,
                       iBase_EntitySetHandle entity_set_1,
                       iBase_EntitySetHandle entity_set_2,
                       iBase_EntitySetHandle* result_entity_set, 
                       int *err);

    /**\brief  Unite contents of one entity set with another
     *
     * Unite contents of one entity set with another
     * \param instance iGeom instance handle
     * \param entity_set_1 Entity set being united with another
     * \param entity_set_2 Entity set being united with another
     * \param result_entity_set Pointer to entity set returned from function
     * \param *err Pointer to error type returned from function
     */
  void iGeom_unite(iGeom_Instance instance,
                   iBase_EntitySetHandle entity_set_1,
                   iBase_EntitySetHandle entity_set_2,
                   iBase_EntitySetHandle* result_entity_set, 
                   int *err);

#ifdef __cplusplus
} /* extern "C" */
#endif

#endif

