Functions

List of:	Discussion Topic
Contents:	Kernel

angle_between					Gets the angle (in radians) between two vectors or two unit vectors in the range 0 <= angle < 2 pi.
api_abort_state					Deletes the current delta state and rolls model to the state before the current state.
api_add_state					Merges a DELTA_STATE instance into a HISTORY_STREAM.
api_alternating_keep_pattern					Creates a new pattern by applying an alternating keep-filter to an existing pattern.
api_alternating_scale_pattern					Creates a new pattern by applying an alternating scale to an existing pattern.
api_apply_transf					Changes the transform entity attached to a body.
api_bb_begin					Starts the API bulletin board.
api_bb_delete					Deletes bulletin boards.
api_bb_end					Terminates the API bulletin board.
api_calculate_edge_tolerance					Calculates the tolerance of an edge.
api_calculate_vertex_tolerance					Calculates the tolerance of a vertex.
api_change_body_trans					Substitutes the given transform for the existing transform of the body.
api_change_state					Modifies the modeler state by applying a delta state.
api_change_to_state					Modifies the modeler state by applying zero or more delta_states.
api_checking					Sets the pointer argument checking for an API call to on or off.
api_check_edge_errors					Checks whether edges have errors that require them to be made tolerant, and optionally performs this conversion.
api_check_face_loops					Checks a face to see that it contains valid loops.
api_check_histories					Checks all HISTORY_STREAMs for problems.
api_check_on					Determines the status of checking and returns TRUE if it is on; otherwise, it returns FALSE.
api_check_vertex_errors					Checks the vertices in the given list for gaps worse than the specified tolerance.
api_clear_annotations					Clears annotation entities from the currently active bulletin board.
api_copy_body					Creates a copy of a body.
api_copy_entity					Creates a copy of an entity and all its associated entities.
api_copy_entity_contents					Creates a copy of a topological entity all its associated subentities.
api_copy_entity_list					Creates a copy of all entities in an entity list and all their associated entities.
api_create_history					Returns a newly created HISTORY_STREAM on the heap.
api_curve_pattern					Creates a pattern parallel to a curve.
api_cylindrical_pattern					Creates a pattern with cylindrical symmetry.
api_deep_copy_entity					Creates a deep copy of an entity and all its associated entities.
api_deep_copy_entity_list					Creates a deep copy of all entities in an entity list and all their associated entities.
api_delent					Deletes an entity and subentities, which are entities below the given entity in the topological hierarchy.
api_delete_ds					Deletes a delta state and dependent data.
api_delete_history					Deletes the HISTORY_STREAM and all ENTITYs in the stream.
api_del_entity					Deletes the given entity.
api_del_entity_list					Deletes the given list of entities.
api_distribute_state_to_streams					Distributes BULLETINs in a DELTA_STATE to one or more HISTORY_STREAMs as directed by a StreamFinder.
api_edge_pattern					Creates a pattern parallel to an edge.
api_elliptical_pattern					Creates an elliptical pattern.
api_end_journal					Sets the status flag off journalizing and finishes the snapshot journaling mechanism.
api_ensure_empty_root_state					If necessary, adds an empty delta state to the beginning of the history stream so that users can roll to a state with no entities.
api_extract_coed_info					Computes the given number of equidistant points in the parametric space of the underlying curve for the coedge.
api_find_annotations					Finds all annotation entities of a given type.
api_find_named_state					Rolls to the start of a named state.
api_get_active_entities					Finds all active entities associated with a history stream.
api_get_active_state					Returns the active DELTA_STATE in the given HISTORY_STREAM.
api_get_all_user_attributes					Finds all attributes of a specified user type in a history stream.
api_get_annotation_ctx					Returns the annotation list.
api_get_coedges					Gets all the coedges related to an entity.
api_get_curve_ends					Gets the end points of a curve.
api_get_default_history					Returns the default HISTORY_STREAM.
api_get_edges					Gets all the edges related to an entity.
api_get_ellipse_parameters					Gets the arguments for a circle or an ellipse.
api_get_entities					Gets all specified entities related to an entity.
api_get_entity_box					Gets the bounding box for a list of entities relative to the active working coordinate system.
api_get_entity_from_id					Returns an ENTITY identified by the given id.
api_get_entity_id					Returns a unique integer identifier for a given ENTITY.
api_get_faces					Gets all faces related to an entity.
api_get_file_info					Gets header info from the last restored file.
api_get_history_from_entity					Returns the HISTORY_STREAM in which the ENTITY lives.
api_get_history_size					Gets the size of the DELTA_STATE in the HISTORY_STREAM.
api_get_journal					Gets a reference to the AcisJournal contained in AcisOptions.
api_get_loops					Gets all loops related to an entity.
api_get_lumps					Gets all lumps related to an entity.
api_get_modified_faces					Finds faces that have been deleted, created, or modified since a particular state.
api_get_owner					Gets the top level owner of an entity.
api_get_save_version					Gets the current save file format version.
api_get_shells					Gets all shells related to an entity.
api_get_state_from_id					Returns a DELTA_STATE identified by the given id.
api_get_state_id					Returns a unique integer identifier for a given DELTA_STATE.
api_get_tcoedges					Gets all the tcoedges related to an entity.
api_get_tedges					Gets all the tedges related to an entity.
api_get_tvertices					Gets all TVERTEXes related to an entity.
api_get_version_tag					Gets the version tag from an ACISversion.
api_get_vertices					Gets all vertices related to an entity.
api_get_wires					Gets all the wires related to an entity.
api_hedgehog					Creates a DL_item list of hairs to show a vector field.
api_hex_cylindrical_pattern					Creates a hexagonal pattern with cylindrical symmetry.
api_hex_pattern					Creates a hexagonal pattern in two or three dimensions.
api_hook_annotations					Traverses the active list of annotations and adds ATTRIB_ANNOTATIONs to hook them to the annotated entities.
api_initialize_kernel					Initializes the kernel library.
api_initialize_spline					Initializes the spline library.
api_integrate_law					Integrates a law over a given domain to a given tolerance.
api_integrate_law_wrt					Integrates a law over a given domain to a given tolerance with respect to a given variable.
api_integrate_law_wrt_and_splits					Integrates a law over a given domain to a given tolerance with respect to a given variable with respect an array of points to split the domain.
api_law_to_entity					Converts a law mathematic function into an entity for the purposes of saving to and restoring from a SAT file.
api_linear_pattern					Creates a linear pattern.
api_linear_scale_pattern					Creates a new pattern by applying a linear scale to an existing pattern.
api_load_state					Loads the state of global variables from a given text file.
api_logging					Sets logging on or off for roll back.
api_loop_type					Determines the type of a given loop.
api_make_cubic					Creates a cubic law given {a,b,f(a),f(b),f'(a),f'(b)}.
api_make_linear					Creates a linear law given {a,b,f(a),f(b)}.
api_make_polynomial_law					Creates a polynomial law.
api_make_quintic					Creates a quintic law given {a,b,f(a),f(b),f'(a),f'(b) f''(a) f''(b)}.
api_make_rails					Creates the default rail laws for sweeping along a wire.
api_make_root_state					Sets the state of the root.
api_make_VBL_output_surfaces					Splits the approximating surface for a VBL_SURF into n four-sided bs3_surface patches.
api_make_version_object					Makes an AcisVersion object from various forms of input.
api_merge_states					Modifies a history stream by merging a range of delta states.
api_name_state					Names the current state.
api_ndifferentiate_law					Numerically differentiates a law at a given point with respect to a given variable a given number of times.
api_nmax_of_law					Gets the maximum value of a given law over the given domain.
api_nmin_of_law					Gets the minimum value of a given law over the given domain.
api_note_state					Sets a check point for roll back and returns model differences since previous call to api_note_state.
api_nroots_of_law					Gets all the roots of a given law over the given domain.
api_nsolve_laws					Determines where two given laws are equal over a given domain.
api_optimize_tvertex_tolerance					Optimize (minimizes) the TVERTEX tolerance on the ends of a EDGE or TEDGE.
api_pattern_find_bump					Finds the bump associated with a given face or loop.
api_pattern_to_entity					Converts a pattern into an entity for the purposes of saving to and restoring from a SAT file.
api_pause_journal					Sets the status flag for journalizing to off, disabling the snapshot journal mechanism.
api_periodic_keep_pattern					Creates a new pattern by applying a periodic keep-filter to an existing pattern.
api_periodic_scale_pattern					Creates a new pattern by applying a periodic scale to an existing pattern.
api_polar_grid_pattern					Creates a polar-grid pattern.
api_project_curve_to_surface					Projects a curve onto a surface.
api_prune_following					Removes forward delta states from a history stream.
api_prune_history					Removes delta states from a history stream.
api_query_state_validity					Returns TRUE if the given DELTA_STATE is in the HISTORY_STREAM.
api_radial_pattern					Creates a radial pattern.
api_random_keep_pattern					Creates a new pattern by applying a random keep-filter to an existing pattern.
api_random_offset_pattern					Creates a new pattern by adding random offsets to an existing pattern.
api_random_orient_pattern					Creates a new pattern by applying random rotations at each site of an existing pattern.
api_random_pattern					Creates a random pattern within the indicated region.
api_random_scale_pattern					Creates a new pattern by applying a random scale to an existing pattern.
api_remove_pattern					If the input entity is patterned, removes the pattern from it and from all other associated patterned entities.
api_remove_state					Merges a DELTA_STATE instance into a HISTORY_STREAM.
api_remove_transf					Removes (discards) the transformation of a body.
api_replace_edge_with_tedge					Replaces an edge with a tolerant edge.
api_replace_tedge_with_edge					Replaces a tolerant edge with a normal edge.
api_replace_tvertex_with_vertex					Replaces a tolerant vertex with a normal vertex.
api_replace_vertex_with_tvertex					Replaces a vertex with a tolerant vertex.
api_reset_boxes					Removes and then adds back bounding boxes from the selected body and its subparts (or just the selected entity if it's not a body).
api_restore_entity_list					Restores an entity_list from disk.
api_restore_entity_list_file					Restores an entity_list from disk.
api_restore_entity_list_with_history					Restores an entity_list from disk.
api_restore_entity_list_with_history_file					Restores an entity_list from disk.
api_restore_history					Restores a history stream and associated entities and entity id information from a file.
api_restore_history_file					Restores an history stream and associated entities and entity id information from a file.
api_resume_journal					Sets the status flag for journalizing to on, enabling the snapshot journal mechanism.
api_roll_n_states					Modifies modeler state by applying zero or more delta_states.
api_save_entity_list					Writes a list of entities to disk as text or binary.
api_save_entity_list_file					Writes a list of entities to disk in text or binary format.
api_save_entity_list_with_history					Writes a list of entities to disk as text or binary.
api_save_entity_list_with_history_file					Writes a list of entities to disk as text or binary.
api_save_history					Writes a history stream and associated entities and entity ID information to a file.
api_save_history_file					Writes a history stream and associated entities and entity id information to a file.
api_save_state					Save the current state of global variables into a text file.
api_save_version					Sets the save file format.
api_set_acis_options					Copies the AcisJournal and AcisVersion Objects from the arguments to the data members inside AcisOptions.
api_set_dbl_option					Sets the value of the specified option to the given double.
api_set_default_history					Sets the input HISTORY_STREAM to be the default the history stream.
api_set_file_info					Sets required header info to be written to ACIS save files.
api_set_int_option					Sets the value of the specified option to the given integer.
api_set_journal					Copies the AcisJournal object to AcisOptions.
api_set_journal_name					Sets the snapshot journal file name.
api_set_str_option					Sets the value of the specified option to the given string.
api_set_version					Copies the version object into the acis option.
api_spherical_pattern					Creates a spherical pattern.
api_stackmon_limit					Sets the limit in bytes of how much stack ACIS may use.
api_start_journal					Sets the status flag for journalizing to on and initializes journal.
api_start_modeller					Starts the modeler.
api_stop_modeller					Terminates modeler and releases memory.
api_str_to_law					Creates a law from a string and an optional array of law data.
api_surface_pattern					Creates a pattern parallel to a surface.
api_terminate_kernel					Terminates the kernel library.
api_terminate_spline					Terminates the spline library.
api_test_deep_copy					Test the deep copy functionality for improper sharing.
api_transform_entity					Applies a transformation to an entity.
api_unhook_annotations					Traverses the active list of annotations and removes associated ATTRIB_ANNOTATIONs.
api_update_tolerance					Updates the tolerance on an entity.
api_wcs_create					Creates a new working coordinate system.
api_wcs_get_active					Gets the active working coordinate system.
api_wcs_set_active					Sets a specified working coordinate system to be active.
bs2_curve_accurate_derivs					Gets the number of derivatives that bs2_curve_evaluate can calculate.
bs2_curve_add_knot					Adds a knot to a B-spline at a given parameter value.
bs2_curve_box					Gets a box that encloses the curve with additional tolerances.
bs2_curve_closed					Determines whether a spline is closed or open.
bs2_curve_connect					Joins two 2D B-splines end to end.
bs2_curve_construct					Creates a curve which is supplied as B-spline vertexes and knot values.
bs2_curve_control_points					Gets the number of control points and an array of control points for a 2D B-spline curve.
bs2_curve_copy					Creates an exact copy of the curve.
bs2_curve_debug					Gets a readable representation of the curve and writes it to a file.
bs2_curve_delete					Deletes storage occupied by a curve that is no longer required.
bs2_curve_deriv					Evaluates the first derivative of the curve with respect to the parameter at the given parameter value.
bs2_curve_eval					Evaluates the curve and its parametric derivative at the given parameter value.
bs2_curve_evaluate					Evaluates an arbitrary number of derivatives and selects the handedness of derivatives at discontinuities.
bs2_curve_fit					Fits a bs2_curve to a collection of point and direction data.
bs2_curve_for_curve_on_surf					Creates a bs2_curve that approximates a segment of a bs3_curve lying on a surface.
bs2_curve_from_ctrlpts					Creates a two-dimensional B-spline curve specified as a sequence of control points, weights, and an associated knot vector.
bs2_curve_init					Initializes the bs2_curve interface and the underlying curve package.
bs2_curve_interp					Creates a cubic curve that interpolates or fits to an array of points, with given start and end directions.
bs2_curve_join					Creates a new curve by appending the second curve to the end of the first.
bs2_curve_knots					Gets the number of knots and the knot vector for a 2D B-spline curve.
bs2_curve_knottol					Gets the parametric criterion used to decide whether a given parameter is a knot.
bs2_curve_make_line					Creates a straight line spline between two points.
bs2_curve_make_rho_conic					Creates a conic curve given three distinct parametric positions and a rho value.
bs2_curve_open					Determines if the spline is open or not.
bs2_curve_par_trans					Transforms the given bs2_curve in parameter space.
bs2_curve_period					Gets the primary interval (the parametric period) of definition of a periodic curve.
bs2_curve_periodic					Determines if the curve is smoothly closed in object space and may be considered an endless loop (periodic).
bs2_curve_position					Evaluates the curve at the given parameter value.
bs2_curve_range					Gets the primary interval on which the curve is defined.
bs2_curve_reparam					Reparameterizes the given curve in place so that its primary interval of definition is from the start to the given end parameters.
bs2_curve_restore					Restores a curve.
bs2_curve_reverse					Reverses the direction of the given curve, and negates the parameterization.
bs2_curve_same					Determines whether two curves are the same.
bs2_curve_save					Saves a curve to a file.
bs2_curve_set_closed					Marks a bs2_curve as being closed.
bs2_curve_set_ctrlpt					Sets the position of one control point.
bs2_curve_set_ctrlpts					Sets the positions, and optionally weights, of all control points on a curve.
bs2_curve_set_end_prms					Sets the values of the start and/or end parameters of a spline.
bs2_curve_set_form					Sets a bs2_curve form variable to the same value as a corresponding bs3_curve form variable.
bs2_curve_set_open					Sets a curve's form to be open.
bs2_curve_set_periodic					Marks a bs2_curve as being periodic.
bs2_curve_shift					Reparameterizes the given curve in place by adding the given shift value to its parameter values.
bs2_curve_split					Splits a given parametric curve into two sections at a given parameter value.
bs2_curve_straddles_bs3_surface_knots					Determines if the convex hull of the curve straddles any knots.
bs2_curve_subset					Creates a curve that is a subset of a given curve.
bs2_curve_tangent					Evaluates the curve direction at the given parameter value.
bs2_curve_to_array					Gets the dimension, degree, control points, weights, and knots for a 2D B-spline curve, and determines if the curve is rational.
bs2_curve_to_bs3_curve					Resolves the AG references in the skin code.
bs2_curve_trans					Transforms the given curve in place.
bs2_curve_u_param_line					Creates a parameter-space curve along a u parameter line of a spline surface.
bs2_curve_v_param_line					Creates a parameter line space curve along a v parameter line of a spline surface.
bs2_curve_weights					Gets the number of weights and an array of weights values for a rational, 2D B-spline curve.
bs2_radius_is_zero					Determines whether or not the spline radius is zero.
bs3_curve_accurate_derivs					Gets the number of derivatives that bs3_curve_evaluate can calculate.
bs3_curve_add_knot					Adds a knot to a B-spline at a given parameter value.
bs3_curve_add_mult_ekn					Adds multiple end knots to a spline curve.
bs3_curve_arc_3curve					Gets the radius and center of an arc tangent to three curves.
bs3_curve_arc_3curve_modified					Gets the radius and center of an arc tangent to three curves.
bs3_curve_box					Determines a box that encloses the curve with additional tolerances.
bs3_curve_bs3_curve_int					Intersects two curves.
bs3_curve_check					Checks the curve for closure, continuity etc. and applies fixes if requested, and possible.
bs3_curve_check_smoothness					Gets knot values where the curve is discontinuous in tangent direction or magnitude.
bs3_curve_closed					Determines if a curve is closed.
bs3_curve_compat					Sets two curves to be side-by-side compatible.
bs3_curve_conic_type					Determines whether the given curve is a conic section.
bs3_curve_connect					Joins two splines end to end in a C1 join.
bs3_curve_construct					Creates a cubic curve which is supplied as B-spline vertexes and knot values.
bs3_curve_control_points					Gets the number of control points and an array of control points for a 3D B-spline curve.
bs3_curve_copy					Creates an exact copy of the curve in free store.
bs3_curve_cub_fit_to_conic					Creates a nonrational cubic B-spline fit to the given conic.
bs3_curve_curvature					Evaluates the curvature of the curve at the given parameter value.
bs3_curve_cylinder					Gets a cylinder enclosing a bs3_curve.
bs3_curve_debug					Gets a readable representation of the curve and writes it to a file.
bs3_curve_degree					Gets the degree of a bs3_curve.
bs3_curve_degree_elevate					Raises the degree of a B-spline curve in place by one.
bs3_curve_delete					Deletes storage occupied by the given curve that is no longer required.
bs3_curve_deriv					Evaluates the parametric derivative (direction and magnitude) of a given 3D B-spline curve at a given parameter value.
bs3_curve_end					Gets the end point of the given spline curve.
bs3_curve_end_tangent					Gets the normalized tangent to the given spline at the end.
bs3_curve_estimate_param					Estimates the parameter of the nearest point or a curve to the given point.
bs3_curve_eval					Evaluates the curve and its parametric derivatives at the given parameter value.
bs3_curve_evaluate					Gets an arbitrary number of derivatives of a curve.
bs3_curve_extrema					Determines the extreme points (maxima and minima) of a parametric curve with respect to a given direction in object space.
bs3_curve_facet					Gets an array of points and parameter values that form the linear approximation to a curve within a specified tolerance.
bs3_curve_fillet_curves					Creates a fillet curve between two curves.
bs3_curve_from_bs2					Converts a two-dimensional parameter-space curve into a three-dimensional curve.
bs3_curve_from_ctrlpts					Creates a 3D B-spline curve specified as a sequence of control points, weights, and an associated knot vector.
bs3_curve_hermite_interp					Interpolates a cubic B-spline curve (Hermite interpolation) from points and tangents.
bs3_curve_init					Initializes the bs3_curve interface and the underlying curve package.
bs3_curve_int					Determines the intersection of two curves.
bs3_curve_intcurve_invert					Inverts a bs3_curve, taking an intcurve into account.
bs3_curve_interp					Creates a curve that interpolates or fits to the given tolerance the given points, with the given tangent directions at the two end points.
bs3_curve_interp_knots					Creates a cubic curve which interpolates or fits to an array of points, with given start and end directions.
bs3_curve_invert					Determines the parameter value of a near-point to the given point on the curve.
bs3_curve_join					Creates a new curve by appending the second curve to the end of the first.
bs3_curve_knots					Gets the number of knots and knot values for a 3D B-spline curve.
bs3_curve_knottol					Gets the parametric criterion used to determine whether a given parameter is a knot.
bs3_curve_knot_mult					Determines the multiplicity of a B-spline curve knot.
bs3_curve_length					Determines the arc length of a three-dimensional B-spline curve between given parameter bounds.
bs3_curve_length_param					Determines the parameter value of the point at a given arc length from the given parameter value.
bs3_curve_line_tan_2crv					Determines the positions for creating a line tangent to two bs3_curves.
bs3_curve_line_tan_pt_crv					Determines all positions on a bs3_curve where a line from a given position is tangent to the curve.
bs3_curve_make_cur					Creates a curve from a portion of a general ACIS curve.
bs3_curve_make_ell					Creates a spline curve from an elliptical arc.
bs3_curve_make_int					Creates a spline curve from an intcurve.
bs3_curve_make_rho_conic					Creates a general conic curve segment given three distinct points and a rho value.
bs3_curve_make_str					Creates a parametric curve that is geometrically the same as the portion of the given straight line between the given parameter values.
bs3_curve_max_dist_to_point_bound					Gets an upper limit to the maximum distance from a point in space to the given curve.
bs3_curve_mergeable					Sets two curves so they can be merged.
bs3_curve_mid					Gets the mid-point of the given spline curve.
bs3_curve_mid_tangent					Gets the normalized mid-tangent to the given spline.
bs3_curve_modify					Modifies the curve, such that the curve passes through the given point at the given parameter value and has the given tangent direction.
bs3_curve_mult					Determines if the current curve has multiple end knots.
bs3_curve_nderiv					Evaluates the nth derivative of a given bs3_curve at a given parameter value.
bs3_curve_nspans					On the assumption that the curve consists of a sequence of simple spans, gets the number of such spans.
bs3_curve_num_ctlpts					Gets the number of control points in a bs3_curve.
bs3_curve_offset_by_dist					Offsets a planar bs3_curve by a specified distance.
bs3_curve_offset_by_vec					Offsets a planar bs3_curve by a vector.
bs3_curve_open					Determines if a bs3_curve is open.
bs3_curve_param_length					Gets the signed arc length of the curve between two parameter values.
bs3_curve_period					Gets the length of the primary interval (i.e., the parametric period) that defines a periodic curve.
bs3_curve_periodic					Determines if the curve is smoothly closed and is an endless loop.
bs3_curve_perp					Gets the position, tangent direction, and parameter value at the foot of a perpendicular dropped from a point to the spline curve.
bs3_curve_planar					Determines whether the curve is planar, within the specified tolerance.
bs3_curve_position					Evaluates the curve at the given parameter value.
bs3_curve_rail_from_cen					Gets a rail curve to sweep for surface construction.
bs3_curve_range					Gets the primary interval on which the curve is defined, which in open and nonperiodic closed curves is the actual domain.
bs3_curve_rational					Determines whether a spline curve is rational.
bs3_curve_rem_extra_knots					Removes redundant knots from a bs3_curve.
bs3_curve_reparam					Reparameterizes the given curve in place.
bs3_curve_restore					Restores a curve from a file.
bs3_curve_reverse					Reverses the direction of the given curve, and negates the parameterization.
bs3_curve_same					Determines whether two spline curves are the same.
bs3_curve_save					Saves a curve to a file.
bs3_curve_self_int					Determines self intersections in a curve.
bs3_curve_set_closed					Sets the form of a bs3_curve to be closed.
bs3_curve_set_ctrlpt					Sets the position of one control point.
bs3_curve_set_ctrlpts					Sets the position of all control points.
bs3_curve_set_fitol					Sets the fit tolerance of a curve.
bs3_curve_set_form					Sets the form of a bs3_curve.
bs3_curve_set_open					Sets the form of a bs3_curve to be open.
bs3_curve_set_periodic					Sets the form of a bs3_curve to be periodic.
bs3_curve_shift					Reparameterizes the given curve in place by adding the given shift value to its parameter values.
bs3_curve_span					Creates a new curve that is the nth span of the given curve.
bs3_curve_span_poly					Gets the normalized rational polynomial for the indexed span of the given curve.
bs3_curve_span_range					Gets the parameter bounds of the span specified.
bs3_curve_split					Splits a given 3D B-spline curve at a given parameter value.
bs3_curve_start					Gets the start point of the given spline curve.
bs3_curve_start_tangent					Gets the normalized tangent to the given spline at the start.
bs3_curve_subset					Creates a curve that is a subset of a given one.
bs3_curve_tangent					Determines the curve direction at the given parameter value.
bs3_curve_tangent_cone					Creates a cone bounding the tangent directions of a curve.
bs3_curve_tan_pt_crv					Determines a position on a bs3_curve where a line from a given position is tangent to the curve.
bs3_curve_term					Flushes any retained storage in the underlying curve package.
bs3_curve_testpt					Determines whether a point lies within tolerance of a three-dimensional B-spline curve.
bs3_curve_to_array					Gets the dimension, degree, rationality, control points, weights, and knots for a 3D B-spline curve.
bs3_curve_to_bs2_curve					Resolves the AG references in the skin code.
bs3_curve_trans					Transforms the given curve in place.
bs3_curve_u_param_line					Creates a curve along the u parameter of a parametric surface, with the v parameter held constant.
bs3_curve_v_param_line					Creates a curve along the v parameter of a parametric surface, with the u parameter held constant.
bs3_curve_weight					Gets the weight value corresponding to a specific control point for a rational, 3D B-spline curve.
bs3_curve_weights					Gets the number of weights and the values of the weights for a rational, 3D B-spline curve.
bs3_surface_3crv					Creates a spline surface that interpolates three boundary curves.
bs3_surface_4crv					Creates a spline surface that interpolates four boundary curves.
bs3_surface_accurate_derivs					Gets the number of derivatives that bs3_surface_evaluate evaluates accurately.
bs3_surface_add_knot					Adds knots to a surface.
bs3_surface_bicubic					Creates a surface that is a bi-cubic interpolant.
bs3_surface_bispan					Creates a surface from a simple patch of a surface.
bs3_surface_bispan_poly					Converts a span into a rational bipolynomial vector with normalized parameterization in each direction.
bs3_surface_bispan_range					Gets the parameter bounds of a simple surface patch.
bs3_surface_boundary_angle					Gets the boundary angle.
bs3_surface_box					Gets a box that encloses a portion of a three-dimensional B-spline surface.
bs3_surface_check					Checks for errors in the approximating surface.
bs3_surface_closed_u					Determines whether a given surface is closed in the u-parameter.
bs3_surface_closed_v					Determines whether the given surface is closed in the v-parameter.
bs3_surface_control_points					Gets the number of control points in the u and v directions, and the array of control points, for the given surface.
bs3_surface_copy					Creates an exact copy of the surface in free store.
bs3_surface_cross					Evaluates the cross curvature of a three-dimensional B-spline surface at a given uv.
bs3_surface_debug					Gets a readable representation of the curve and writes it to a file.
bs3_surface_degree_u					Gets the spline degree in the u direction.
bs3_surface_degree_v					Gets the spline degree in the v direction.
bs3_surface_delete					Deletes storage occupied by the given surface.
bs3_surface_dim					Gets the dimensionality of a surface.
bs3_surface_estimate_param					Estimates the parameter values of the foot of a perpendicular from a given point to the surface.
bs3_surface_eval					Evaluates a bs3_surface for position, first, and second derivatives at the given parameter value.
bs3_surface_evaluate					Evaluates the position and an arbitrary number of derivatives of the surface.
bs3_surface_fit					Fits a mesh of points to a bs3_surface.
bs3_surface_fitol					Determines the fit tolerance of a surface.
bs3_surface_from_ctrlpts					Creates a B-spline surface from a collection of control points and knot vectors.
bs3_surface_hermite					Creates a single patch Bezier surface from Hermite data at the patch corners.
bs3_surface_hermite_intp					Creates a bi-cubic Hermite interpolant using a mesh of points, tangents, twists, and knot vectors.
bs3_surface_hull_planes					Creates a bounding hull around a surface.
bs3_surface_ij_ctrlpt					Gets the [i,j] control point of a given spline surface.
bs3_surface_ij_knu					Gets the ith knot in u direction.
bs3_surface_ij_knv					Gets the ith knot in v direction.
bs3_surface_init					Initializes the spline surface system.
bs3_surface_interp_knots					Creates a bicubic surface that interpolates or fits a set of points, with specified boundary derivatives and twist vectors.
bs3_surface_intp					Interpolates a mesh of points.
bs3_surface_invdir					Gets the direction in the parameter space of a surface at a given position that corresponds to a given object-space tangent direction.
bs3_surface_invert					Gets the parameter of a point on a 3D B-spline surface.
bs3_surface_join_u					Joins two compatible three-dimensional B-spline surfaces together.
bs3_surface_join_v					Joins two compatible three-dimensional B-spline surfaces together.
bs3_surface_knots_u					Gets the number of knots in the u direction and the knot values in the u direction, for the given surface.
bs3_surface_knots_v					Gets the number of knots in the v direction and the knot values in the v direction, for the given surface.
bs3_surface_knottol					Gets the parametric criterion used to decide whether a given parameter is a knot.
bs3_surface_loft_curves					Lofts a surface from an array of n bs3_curves.
bs3_surface_loft_u_curves					Lofts a series of similar bs3_curves into a bs3_surface.
bs3_surface_make_con					Creates a parametric surface coincident with the given cone.
bs3_surface_make_pipe					Creates a spline surface that is an approximation to a constant-radius circular pipe centered on the given spine curve.
bs3_surface_make_pipe_boundary					Creates a pipe surface given the spine, radius, and two boundary curves that bracket the zero u-parameter direction.
bs3_surface_make_pla					Creates a spline surface from the given plane.
bs3_surface_make_sph					Creates a spline surface from the given sphere.
bs3_surface_make_spl					Creates a parametric surface coincident with the given spline.
bs3_surface_make_sur					Converts a portion of a general ACIS surface into a spline surface.
bs3_surface_make_tor					Creates a spline surface from the given torus.
bs3_surface_max_size_to_param_line					Estimates the parameter of a near point on a surface, given the parameter of a control point of the surface.
bs3_surface_mult_eku					Determines if surface has multiple u end knots.
bs3_surface_mult_ekv					Determines if surface has multiple v end knots.
bs3_surface_ncu					Gets the number of control points in u_direction.
bs3_surface_ncv					Gets the number of control points in v_direction.
bs3_surface_nku					Gets the number of knots in the u direction for the given surface.
bs3_surface_nkv					Gets the number of knots in the v direction for the given surface.
bs3_surface_normal					Evaluates the normal to a three-dimensional B-spline surface at a given (u,v).
bs3_surface_nspans_u					Gets number of simple patches in the u parameter direction forming a bs3_surface.
bs3_surface_nspans_v					Gets number of simple patches in the v parameter direction forming a bs3_surface.
bs3_surface_offset					Offsets the given surface by offset distance.
bs3_surface_periodic_u					Determines whether the surface is periodic in the u-parameter.
bs3_surface_periodic_v					Determines whether the surface is periodic in the v-parameter.
bs3_surface_period_u					Gets the u-parameter period of a three-dimensional B-spline surface.
bs3_surface_period_v					Gets the v-parameter period of a three-dimensional B-spline surface.
bs3_surface_perp					Gets the intersection with the surface and the normal to the surface of a perpendicular dropped from a point to the surface.
bs3_surface_planar					Determines if a bs3_surface is planar.
bs3_surface_poles_u					Gets a flag indicating the existence of poles (singularities) in the u direction.
bs3_surface_poles_v					Gets a flag indicating the existence of poles (singularities) in the v direction.
bs3_surface_position					Evaluates and returns a position on a three-dimensional B-spline surface at a given uv.
bs3_surface_prin_curv					Evaluates the principal axes of curvature and corresponding curvatures of a three-dimensional B-spline surface at a given uv.
bs3_surface_proc					Creates an approximate spline surface to a procedurally defined surface.
bs3_surface_range					Gets the range of both parameter values that defines the surface as the bounds of a rectangular box in parameter space.
bs3_surface_range_u					Gets the u parameter range a three-dimensional B-spline surface.
bs3_surface_range_v					Gets the v parameter range of a three-dimensional B-spline surface.
bs3_surface_rational_u					Determines if a surface is rational in u.
bs3_surface_rational_v					Determines if a surface is rational in v.
bs3_surface_remove_extra_knots					Deletes knots where multiplicities are greater than the degree in both u and v.
bs3_surface_reparam_u					Reparameterizes the surface in u.
bs3_surface_reparam_v					Reparameterizes the surface in v.
bs3_surface_restore					Restores a saved surface.
bs3_surface_revolve_curve					Creates a spline surface by revolving a three-dimensional B-spline curve about an axis.
bs3_surface_ruled					Creates a ruled surface between two curves.
bs3_surface_rule_from_pt					Creates a triangular ruled surface from a point to a curve.
bs3_surface_same					Determines whether two spline surfaces are the same.
bs3_surface_save					Saves a surface.
bs3_surface_set_closed_u					Sets the bs3_surface to be closed in u.
bs3_surface_set_closed_v					Sets the bs3_surface to be closed in v.
bs3_surface_set_ctrlpt					Sets the position of one control point.
bs3_surface_set_ctrlpts					Sets the position of all control points.
bs3_surface_set_form					Sets the form of a bs3_surface.
bs3_surface_set_open_u					Sets the bs3_surface to be open in u.
bs3_surface_set_open_v					Sets the bs3_surface to be open in v.
bs3_surface_set_periodic_u					Marks the surface as being periodic in u.
bs3_surface_set_periodic_v					Marks the surface as being periodic in v.
bs3_surface_shift_u					Reparameterizes the given surface in u.
bs3_surface_shift_v					Reparameterizes the given surface in v.
bs3_surface_sil					Creates the silhouettes of the surface.
bs3_surface_singular_u					Determines if the mapping from parameter space to object-space is singular along the given constant u-parameter line.
bs3_surface_singular_v					Determines if the mapping from parameter space to object space is singular along the given constant vparameter line.
bs3_surface_skin_curves					Creates a surface that interpolates ("skins") between a sequence of bs3_curves.
bs3_surface_span_range_u					Gets the u parameter bounds of a surface's simple patches.
bs3_surface_span_range_v					Gets the v parameter bounds of a surface's simple patches.
bs3_surface_split_u					Splits a B-spline surface into two sections at a given u parameter value.
bs3_surface_split_v					Splits a B-spline surface into two sections at a given v parameter value.
bs3_surface_subset					Creates a surface identical to the given surface.
bs3_surface_sum_curves					Creates a spline surface by summing two 3D B-spline curves.
bs3_surface_sum_x_pla_str					Specializes the top curve construction for perpendicular sweep.
bs3_surface_testpt					Determines whether an object-space point lies on a given surface within the given positional precision.
bs3_surface_to_array					Creates arrays of control points, weights, u knots, and v knots from a B-spline surface.
bs3_surface_trans					Transforms a surface.
bs3_surface_unitvec					Determines the offset in parameter space corresponding to a unit move in a direction on a 3D B-spline surface at a given position.
bs3_surface_weights					Gets the number of weights in the u and v directions and the array of weights for the given surface.
bs3_surface_wiggle					Creates four splines for the edges or a wiggle.
check_outcome					Check an outcome from an API and signal an exception if it is not OK.
clear_debug_lists					Clears the DEBUG_LISTs.
closest_points					Determines where two lines, defined by positions and directions, are closest.
compute_axes_from_z					Determines two orthogonal vectors to define a coordinate system, given a SPAunit_vector.
current_bb					Gets access to the current bulletin-board for update functions.
debug_int					Prints an integer with the given title to the output file.
debug_leader					Prints to the output file a pointer to a static string containing a suitable blank title string for the second and subsequent lines of an item.
debug_new_pointer					Prints to the output file an ENTITY pointer.
debug_real					Prints out a real number with title and newline.
debug_string					Prints to the output file a string value with the given title.
delete_all_delta_states					Deletes all recorded DELTA_STATEs.
dist_pt_to_line					Gets the distance from a point to a line, and the parameter along the line of the closest approach.
extend_spline					Creates an extension to a given spline using the supplied distance.
find_attrib					Locates an ENTITY's attribute list for an ATTRIB of a given type, subtype, etc., starting at the beginning of the list.
find_leaf_attrib					Locates an ENTITY's attribute list for a leaf ATTRIB of a given type, starting at the beginning of the list.
get_ATTRIB_SYS_TYPE					Gets the type of system attribute.
get_attrib_tag_callbacks_list					Gets the global list of WCS callbacks.
get_ATTRIB_TSL_TYPE					Gets the type of TSL attribute.
get_bounded_curve					Gets a bounded_curve from an EDGE.
get_curve_center					Gets the center of a circular or elliptical EDGE.
get_default_stream					Retrieves a default history stream, which may be necessary when initially creating a history of actions.
get_edge_box					Returns the bounding box used for the edge.
get_face_box					Returns the bounding box used for the face.
get_savres_file					Gets the file interface object corresponding to the current SAT file.
get_Scm_Entity					Creates a C++ENTITY from a Scheme entity.
get_Scm_Gvector					Creates a C++SPAvector from a Scheme gvector object.
get_Scm_Law					Creates a C++law from a Scheme law object.
get_Scm_Position					Creates a C++SPAposition from a Scheme position object.
get_Scm_Transform					Creates a C++SPAtransf from a Scheme transform object.
get_wire_plane					Gets the plane of a 3D WIRE.
intersect_line_circle					Gets the intersections of a line with a circle.
intersect_line_plane					Gets the intersection of a line with a plane.
intersect_plane_plane					Gets the intersection of two planes.
is_ANNOTATION					Determines if an ENTITY is an ANNOTATION.
is_APOINT					Determines if an ENTITY is an APOINT.
is_ATTRIB					Determines if an ENTITY is an ATTRIBUTE.
is_ATTRIB_ANNOTATION					Determines if an ENTITY is an ATTRIB_ANNOTATION.
is_ATTRIB_ST					Determines if an ENTITY is an ATTRIB_ST.
is_ATTRIB_SYS					Determines if an ENTITY is an ATTRIB_SYS.
is_ATTRIB_TAG					Determines if an ENTITY is an ATTRIB_TAG.
is_ATTRIB_TSL					Determines if an ENTITY is an ATTRIB_TSL.
is_BODY					Determines if an ENTITY is a BODY.
is_circular_edge					Determines if an ENTITY is a circular edge.
is_closed_curve					Determines if a curve is closed.
is_COEDGE					Determines if an ENTITY is a COEDGE.
is_CONE					Determines if an ENTITY is a CONE.
is_cone					Determines if a surface is a conical surface.
is_conical_face					Determines if an ENTITY is a conical face.
is_CURVE					Determines if an ENTITY is a CURVE.
is_curve_edge					Determines if an ENTITY is a curve edge.
is_cylindrical_face					Determines if an ENTITY is a cylindrical face.
is_EDGE					Determines if an ENTITY is an EDGE.
is_EE_LIST					Determines if an ENTITY is an EE_LIST.
is_ELLIPSE					Determines if an ENTITY is an ELLIPSE.
is_ellipse					Determines if a curve is an ellipse.
is_elliptical_edge					Determines if an ENTITY is an elliptical edge.
is_ENTITY					Validates the input ENTITY.
is_FACE					Determines if an ENTITY is a FACE.
is_INTCURVE					Determines if an ENTITY is an INTCURVE.
is_intcurve					Determines if a curve is an intcurve.
is_intcurve_edge					Determines if an ENTITY is an intcurve edge.
is_LAW					Determines if an ENTITY is a LAW.
is_linear_edge					Determines if an ENTITY is a linear edge.
is_LOOP					Determines if an ENTITY is a LOOP.
is_LUMP					Determines if an ENTITY is a LUMP.
is_PCURVE					Determines if an ENTITY is a PCURVE.
is_planar_face					Determines if an ENTITY is a planar face.
is_planar_wire					Determines if a WIRE is planar.
is_PLANE					Determines if an ENTITY is a PLANE.
is_plane					Determines if a surface is a planar surface.
is_Scm_Entity					Determines if a Scheme object is an ENTITY.
is_Scm_Entray					Determines if a Scheme object is an entray.
is_SHELL					Determines if an ENTITY is a SHELL.
is_solid_body					Determines if an ENTITY is a solid BODY.
is_SPHERE					Determines if an ENTITY is a SPHERE.
is_sphere					Determines if a surface is a spherical surface.
is_spherical_face					Determines if an ENTITY is a spherical face.
is_SPLINE					Determines if an ENTITY is a SPLINE.
is_spline					Determines if a surface is a spline surface.
is_spline_face					Determines if the ENTITY is a spline face.
is_STRAIGHT					Determines if an ENTITY is a STRAIGHT.
is_straight					Determines if a curve is a straight curve.
is_SUBSHELL					Determines if an ENTITY is a SUBSHELL.
is_SURFACE					Determines if an ENTITY is a SURFACE.
is_TCOEDGE					Determines if an ENTITY is a TCOEDGE.
is_TEDGE					Determines if an ENTITY is a TEDGE.
is_TEXT_ANNOTATION					Determines if an ENTITY is a TEXT_ANNOTATION.
is_TEXT_ENT					Determines if an ENTITY is a TEXT_ENT.
is_toplevel					Determines if an ENTITY is top level.
is_toroidal_face					Determines if the ENTITY is a toroidal face.
is_TORUS					Determines if an ENTITY is a TORUS.
is_torus					Determines if a surface is a toroidal surface.
is_TRANSFORM					Determines if an ENTITY is a TRANSFORM.
is_TVERTEX					Determines if an ENTITY is a TVERTEX.
is_UNDEFC					Determines if an ENTITY is an UNDEFC.
is_VERTEX					Determines if the ENTITY is a VERTEX.
is_WCS					Determines if an ENTITY is a WCS.
is_WIRE					Determines if an ENTITY is a WIRE.
is_wire_body					Determines if an ENTITY is a wire BODY.
make_Scm_Entity					Creates a Scheme entity from a C++ENTITY.
make_surface					Creates a surface for the given surface constant.
proj_pt_to_line					Projects a SPAposition onto a line.
proj_pt_to_plane					Projects a SPAposition onto a plane.
read_array					Reads an of array indices.
read_char					Reads a character written with C printf format "%c".
read_data					Reads a TaggedData item from an unknown ENTITY type.
read_enum					Reads an enumeration table.
read_float					Reads a float written with C printf format "%g ".
read_header					Reads a header.
read_id					Reads an identifier.
read_int					Reads an integer by reading a long and converting.
read_interval					Reads an interval as two doubles.
read_logical					Reads a logical.
read_long					Reads a long written with C printf format "%ld".
read_matrix					Reads a SPAmatrix as three row vectors.
read_pointer					Reads a pointer.
read_position					Reads a position as three doubles.
read_ptr					Reads a pointer for the save file.
read_real					Reads a double.
read_sequence					Reads an explicit record sequence number.
read_string					Reads a string into a supplied buffer of a given size, maxlen.
read_subtype_end					Reads subtype end braces around the subtypes, written as "} ".
read_subtype_start					Reads subtype start braces around the subtypes, written as "{ ".
read_transf					Internal to ACIS and not intended for direct usage. Reads a transformation.
read_unit_vector					Reads a unit vector as a vector and then normalizes it.
read_vector					Reads a vector as three doubles.
reset_boxes					Resets the boxes used.
reset_boxes_downward					Resets the box of the given entity and then resets the boxes off all constituent boxes.
restore_curve					Internal to ACIS and not intended for direct usage.
set_logging					Flag to control whether rollback records are produced or not.
sg_add_pcurves_to_entity					Adds pcurves to any ENTITY.
to_model					Gets a model space position from a WCS position.
to_wcs					Gets a WCS position from a model space position.
wcs_active_to_model					Gets the transformation that maps from the active WCS to model space.
wcs_get_active					Gets the active WCS.
wcs_model_to_active					Gets the transformation that maps from model space to the active WCS.
wcs_origin					Gets the origin of the active WCS.
wcs_set_origin					Sets the point or origin of the given WCS.
wcs_x_axis					Gets the x-axis of the active WCS.
wcs_y_axis					Gets the y-axis of the active WCS.
wcs_z_axis					Gets the z-axis of the active WCS.

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