Introduction ↑

This manual page describes all of the mappings available for use within the SMAP subsystem. The application must call smap_DefineMappings to load these mappings into a mapping table. Mappings which are to be used can then be selected using map_EnableMapping or map_LoadMapFile. See the manual pages for these functions for more information.

Note that although parameters are not specifically listed for all of the mappings which follow, there is a high possibility that any of the GMP tolerances could be used at any point in the mapping process.

description	Convert a GDX parametric conic arc entity to a STEP trimmed_curve/ellipse, ellipse (untrimmed), trimmed_curve/hyperbola, or trimmed_curve/parabola entity. The resultant form is determined based on the CRVTYP (gdx_parabola, gdx_ellipse, or gdx_hyperbola) field of the GDX conic entity. If the GDX Conic is an ellipse, the form is further determined by whether or not the GDX Conic is a full ellipse. The GDX conic is considered to be a full ellipse if the difference between start and end angles is within GMP_ANGLE_TOL of 2 * PI, where GMP_ANGLE_TOL is the angular coincidence tolerance. An elliptical arc will result in a trimmed_curve/ellipse while a full ellipse will result in an ellipse entity (untrimmed).
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_CONIC
mappings
output_dtf	STEP:TRIMMED_CURVE STEP:ELLIPSE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX rational B-spline curve entity to a STEP uniform_curve, quasi_uniform_curve, bezier_curve, b_spline_curve_with_knots, external_map (if rational), or, if necessary, a trimmed_curve that references one of the aforementioned entities. The resultant form is determined by the knot vector and rational flag corresponding to the GDX nurb curve being processed. The knot vector is examined to determine the distinct knots, their spacing, and their corresponding multiplicities. This information is used to determine the resulting subtype of the STEP Part 42 b_spline_curve that should be created (for further information, see STEP Part 42 documentation).
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_NURB_CURVE
mappings
output_dtf	STEP:UNIFORM_CURVE STEP:QUASI_UNIFORM_CURVE STEP:BEZIER_CURVE STEP:B_SPLINE_CURVE_WITH_KNOTS STEP:RATIONAL_UNIFORM_CURVE STEP:RATIONAL_QUASI_UNIFORM_CURVE STEP:RATIONAL_BEZIER_CURVE STEP:RATIONAL_B_SPLINE_CURVE_WITH_KNOTS STEP:TRIMMED_CURVE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX parametric circular arc entity to a STEP trimmed_curve/circle or circle (untrimmed) entity. The form is determined by whether or not the GDX arc is a full circle. The GDX arc is considered to be a full circle if the difference between start and end angles is within GMP_ANGLE_TOL of 2 * PI, where GMP_ANGLE_TOL is the angular coincidence tolerance. An arc will result in a trimmed_curve/circle while a full circle will result in a circle entity (untrimmed).
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_ARC
mappings
output_dtf	STEP:TRIMMED_CURVE STEP:CIRCLE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX polyline arc entity to a STEP cartesian_point, trimmed_curve/line, or polyline entity. The form is determined by the number of GDX polyline points (1 -> STEP cartesian_point, 2 -> STEP trimmed_curve/line, 3 or more -> STEP polyline). If a STEP Part 42 polyline is to result, a tolerance to determine whether the polyline is closed is used. The GMP_MODEL_SPACE_PNT_TOL is used as this tolerance.
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_POLYLINE
mappings
output_dtf	STEP:CARTESIAN_POINT STEP:TRIMMED_CURVE STEP:POLYLINE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX composite curve entity to a STEP composite_curve. The STEP composite_curve will reference composite_curve_segment(s) and/or reparametrised_composite_curve_segment(s). If the STEP composite_curve entity's parm_range is not NULL and the parm_range value is not 0.0, then the corresponding STEP composite_curve reference will be to a reparametrised_composite_curve_segment. Otherwise the reference will be to a composite_curve_segment. If the GDX composite curve's trans_code field is NULL, the continuity is determined. The GMP_MODEL_SPACE_PNT_TOL is used for the G0 continuity check. The GMP_TANGENT_TOL and the GMP_CURVATURE_TOL are used for the G1 and G2 continuity checks, respectively.
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_COMP_CURVE
mappings
output_dtf	STEP:COMPOSITE_CURVE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX offset curve entity to a STEP trimmed_curve/offset_curve_2d, offset_curve_2d, trimmed_curve/offset_curve_3d, or offset_curve_3d. The form is determined by whether or not the GDX curve entity referenced by the GDX offset curve is relimited or not. The GDX curve is considered relimited if its parametric bounds are not the same as the start and end parameter values of the GDX offset curve entity. A relimited curve will result in a STEP trimmed_curve entity being created. A STEP offset_curve_2d entity results if the GDX curve entity referenced by the GDX offset curve is xy planar and the plane_normal field of the offset curve entity is in the direction of the +Z axis.
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_OFFSET_CURVE
mappings
output_dtf	STEP:OFFSET_CURVE_2D STEP:OFFSET_CURVE_3D STEP:TRIMMED_CURVE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX trim curve entity to a STEP trimmed_curve.
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_TRIM_CURVE
mappings
output_dtf	STEP:TRIMMED_CURVE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX general rational B-spline surface to a STEP uniform_surface, quasi_uniform_surface, bezier_surface, b_spline_surface_with_knots, external_map (if rational), or, if necessary, a rectangular_trimmed_surface that references one of the aforementioned entities. The form is determined by the knot vector and rational flag corresponding to the GDX Nurb Surface being processed. The knot vector is examined to determine the distinct knots, their spacing, and their corresponding multiplicities. This information is used to determine the resulting subtype of the STEP Part 42 b_spline_surface that should be created (for further information, see STEP Part 42 documentation).
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_NURB_SURF
mappings
output_dtf	STEP:UNIFORM_SURFACE STEP:QUASI_UNIFORM_SURFACE STEP:BEZIER_SURFACE STEP:B_SPLINE_SURFACE_WITH_KNOTS STEP:RATIONAL_UNIFORM_SURFACE STEP:RATIONAL_QUASI_UNIFORM_SURFACE STEP:RATIONAL_BEZIER_SURFACE STEP:RATIONAL_B_SPLINE_SURFACE_WITH_KNOTS STEP:RECTANGULAR_TRIMMED_SURFACE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX revolved surface entity to a STEP surface_of_revolution, and, if necessary, a rectangular_trimmed_surface that references the aforementioned entity. The form is determined by whether or not the GDX revolved surface is full or not. The GDX revolved surface is considered to be full if the difference between start and end angles is within GMP_ANGLE_TOL of 2 * PI, where GMP_ANGLE_TOL is the angular coincidence tolerance. A non-full GDX revolved surface will result in a rectangular_trimmed_surface/surface_of_revolution while a full GDX revolved surface will result in a surface_of_revolution entity (untrimmed).
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_REV_SURF
mappings
output_dtf	STEP:SURFACE_OF_REVOLUTION STEP:RECTANGULAR_TRIMMED_SURFACE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX extruded surface entity to a STEP surface_of_linear_extrusion, and, if necessary, a rectangular_trimmed_surface that references the aforementioned entity. The form is determined by whether or not the GDX extruded surface is full or not. The GDX extruded surface is considered to be full if the difference between start and end angles is within GMP_ANGLE_TOL of 2 * PI, where GMP_ANGLE_TOL is the angular coincidence tolerance. A non-full GDX extruded surface will result in a rectangular_trimmed_surface/surface_of_linear_extrusion while a full GDX extruded surface will result in a surface_of_linear_extrusion entity (untrimmed).
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_EXT_SURF
mappings
output_dtf	STEP:SURFACE_OF_LINEAR_EXTRUSION STEP:RECTANGULAR_TRIMMED_SURFACE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX solid entity to a STEP MSBO solid. The STEP solid entity will either be a Manifold Solid B-Rep (MnSlBr) or a Manifold Solid B-Rep with voids (BrWtVd).
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_SOLID
mappings
output_dtf	STEP:MANIFOLD_SOLID_BREP STEP:BREP_WITH_VOIDS
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX plane surface entity to a STEP plane, and, if necessary, a rectangular_trimmed_surface that references the aforementioned entity. The form is determined by whether or not the GDX plane is full or not. The GDX plane is considered to be full if the difference between start and end angles is within GMP_ANGLE_TOL of 2 * PI, where GMP_ANGLE_TOL is the angular coincidence tolerance. A non-full GDX plane will result in a rectangular_trimmed_surface/plane while a full GDX plane will result in a plane entity (untrimmed).
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_PLANE
mappings
output_dtf	STEP:PLANE STEP:RECTANGULAR_TRIMMED_SURFACE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX cylindrical surface entity to a STEP cylindrical_surface, and, if necessary, a rectangular_trimmed_surface that references the aforementioned entity. The form is determined by whether or not the GDX cylinder is full or not. The GDX cylinder is considered to be full if the difference between start and end angles is within GMP_ANGLE_TOL of 2 * PI, where GMP_ANGLE_TOL is the angular coincidence tolerance. A non-full GDX cylinder will result in a rectangular_trimmed_surface/cylindrical_surface while a full GDX cylinder will result in a cylindrical_surface entity (untrimmed).
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_CYLINDER
mappings
output_dtf	STEP:CYLINDRICAL_SURFACE STEP:RECTANGULAR_TRIMMED_SURFACE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX conical surface entity to a STEP conical_surface, and, if necessary, a rectangular_trimmed_surface that references the aforementioned entity. The form is determined by whether or not the GDX cone is full or not. The GDX cone is considered to be full if the difference between start and end angles is within GMP_ANGLE_TOL of 2 * PI, where GMP_ANGLE_TOL is the angular coincidence tolerance. A non-full GDX cone will result in a rectangular_trimmed_surface/conical_surface while a full GDX cone will result in a conical_surface entity (untrimmed).
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_CONE
mappings
output_dtf	STEP:CONICAL_SURFACE STEP:RECTANGULAR_TRIMMED_SURFACE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX spherical surface entity to a STEP spherical_surface, and, if necessary, a rectangular_trimmed_surface that references the aforementioned entity. The form is determined by whether or not the GDX sphere is full or not. The GDX sphere is considered to be full if the difference between start and end angles is within GMP_ANGLE_TOL of 2 * PI, where GMP_ANGLE_TOL is the angular coincidence tolerance. A non-full GDX sphere will result in a rectangular_trimmed_surface/spherical_surface while a full GDX sphere will result in a spherical_surface entity (untrimmed).
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_SPHERE
mappings
output_dtf	STEP:SPHERICAL_SURFACE STEP:RECTANGULAR_TRIMMED_SURFACE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX toroidal surface entity to a STEP toroidal_surface, and, if necessary, a rectangular_trimmed_surface that references the aforementioned entity. The form is determined by whether or not the GDX torus is full or not. The GDX torus is considered to be full if the difference between start and end angles is within GMP_ANGLE_TOL of 2 * PI, where GMP_ANGLE_TOL is the angular coincidence tolerance . A non-full GDX torus will result in a rectangular_trimmed_surface/spherical_surface while a full GDX torus will result in a spherical_surface entity (untrimmed).
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_TORUS
mappings
output_dtf	STEP:TOROIDAL_SURFACE STEP:RECTANGULAR_TRIMMED_SURFACE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX offset surface entity to a STEP offset_surface.
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_OFFSET_SURF
mappings
output_dtf	STEP:OFFSET_SURFACE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX rectangular trimmed surface entity to a STEP rectangular_trimmed_surface.
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_RECT_TRIM_SURF
mappings
output_dtf	STEP:RECTANGULAR_TRIMMED_SURFACE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX composite edge curve entity to a STEP boundary_curve. The STEP boundary_curve will reference composite_curve_segment(s). Each composite_curve_segment will be either a pcurve or a surface_curve. The continuity of the composite_curve_segment's transition field is determined using the following tolerances. The GMP_MODEL_SPACE_PNT_TOL is used for the G0 continuity check. The GMP_TANGENT_TOL and the GMP_CURVATURE_TOL are used for the G1 and G2 continuity checks, respectively.
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_COMP_EDGE_CURVE
mappings
output_dtf	STEP:BOUNDARY_CURVE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX curve bounded surface entity to a STEP curve_bounded_surface.
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_CURVE_BOUNDED_SURF
mappings
output_dtf	STEP:CURVE_BOUNDED_SURFACE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX face entity to a STEP curve_bounded_surface.
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_FACE
mappings
output_dtf	STEP:CURVE_BOUNDED_SURFACE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX shell entity to a STEP shell based surface model containing one open shell.
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_SHELL
mappings
output_dtf	STEP:SHELL_BASED_SURFACE_MODEL
options	GENERAL, TRANSIENT, 1:1

description	Creates STEP Representation entity from GDX Modelvar.
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_MODEL_VAR
mappings
output_dtf	STEP:REPRESENTATION_CONTEXT
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX tessellated shape entity to STEP
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_TESSELLATED_SHAPE
mappings
output_dtf	STEP:TESSELLATED_FACE STEP:CUBIC_BEZIER_TRIANGULATED_FACE STEP:TRIANGULATED_FACE STEP:COMPLEX_TRIANGULATED_FACE
options	GENERAL, TRANSIENT, 1:1

description	Convert a GDX tessellated group entity to STEP
function	smap__ConvertFromGDX
input_dtf	GDX:GDX_TESSELLATED_GROUP
mappings
output_dtf	STEP:TESSELLATED_SOLID
options	GENERAL, TRANSIENT, 1:1

description	Creates GDX ModelVar entity from STEP Representation.
function	smap__ConvertToGDX
input_dtf	STEP:SHAPE_REPRESENTATION
mappings
output_dtf	GDX:GDX_MODEL_VAR
options	GENERAL, TRANSIENT, 1:1

description	Convert a STEP cartesian_point entity to a GDX polyline curve. The resulting GDX polyline will consist of a single point.
function	smap__ConvertToGDX
input_dtf	STEP:CARTESIAN_POINT
mappings
output_dtf	GDX:GDX_POLYLINE
options	GENERAL, TRANSIENT, 1:1

description	Convert a STEP line to a GDX polyline curve entity. The resulting GDX polyline will consist of two points.
function	smap__ConvertToGDX
input_dtf	STEP:LINE
mappings
output_dtf	GDX:GDX_POLYLINE
options	GENERAL, TRANSIENT, 1:1

description	Convert a STEP circle entity to a GDX circular arc.
function	smap__ConvertToGDX
input_dtf	STEP:CIRCLE
mappings
output_dtf	GDX:GDX_ARC
options	GENERAL, TRANSIENT, 1:1

description	Convert a STEP ellipse entity to a GDX conic.
function	smap__ConvertToGDX
input_dtf	STEP:ELLIPSE
mappings
output_dtf	GDX:GDX_CONIC
options	GENERAL, TRANSIENT, 1:1

description	Convert a STEP hyperbola entity to a GDX conic.
function	smap__ConvertToGDX
input_dtf	STEP:HYPERBOLA
mappings
output_dtf	GDX:GDX_CONIC
options	GENERAL, TRANSIENT, 1:1