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-- File: ShapeCustom.cdl
-- Created: Wed Jun 3 12:40:02 1998
-- Author: data exchange team
-- <det@loufox.nnov.matra-dtv.fr>
---Copyright: Matra Datavision 1998
package ShapeCustom
---Purpose: This package is intended to
-- convert geometrical objects and topological. The
-- modifications of one geometrical object to another
-- (one) geometrical object are provided. The supported
-- modifications are the following:
-- conversion of BSpline and Bezier surfaces to analytical form,
-- conversion of indirect elementary surfaces (with left-handed
-- coordinate systems) into direct ones,
-- conversion of elementary surfaces to surfaces of revolution,
-- conversion of surface of linear extrusion, revolution, offset
-- surface to bspline,
-- modification of parameterization, degree, number of segments of bspline
-- surfaces, scale the shape.
uses
gp,
GeomAbs,
Geom,
Geom2d,
TopLoc,
TopoDS,
BRepTools,
TopTools,
TColgp,
Precision
is
class Surface;
class Curve;
class Curve2d;
class RestrictionParameters;
class DirectModification;
private class TrsfModification;
private class BSplineRestriction;
private class ConvertToRevolution;
private class SweptToElementary;
private class ConvertToBSpline;
ApplyModifier(S : Shape from TopoDS;
M : Modification from BRepTools;
context: in out DataMapOfShapeShape from TopTools;
MD : in out Modifier from BRepTools)
returns Shape from TopoDS;
---Purpose: Applies modifier to shape and checks sharing in the case assemblies.
DirectFaces(S: Shape from TopoDS) returns Shape from TopoDS;
---Purpose: Returns a new shape without indirect surfaces.
ScaleShape (S: Shape from TopoDS; scale: Real) returns Shape from TopoDS;
---Purpose: Returns a new shape which is scaled original
BSplineRestriction(S : Shape from TopoDS;
Tol3d, Tol2d : Real;
MaxDegree, MaxNbSegment : Integer;
Continuity3d, Continuity2d: Shape from GeomAbs;
Degree : Boolean;
Rational : Boolean;
aParameters : RestrictionParameters from ShapeCustom)
returns Shape from TopoDS;
---Purpose: Returns a new shape with all surfaces, curves and pcurves
-- which type is BSpline/Bezier or based on them converted
-- having Degree less than <MaxDegree> or number of spans less
-- than <NbMaxSegment> in dependence on parameter priority <Degree>.
-- <GmaxDegree> and <GMaxSegments> are maximum possible degree
-- and number of spans correspondingly.
-- These values will be used in those cases when approximation with
-- specified parameters is impossible and one of GmaxDegree or
-- GMaxSegments is selected in dependence on priority.
-- Note that even if approximation is impossible with <GMaxDegree>
-- then number of spans can exceed specified <GMaxSegment>
-- <Rational> specifies if to convert Rational BSpline/Bezier into
-- polynomial B-Spline.
-- If flags ConvOffSurf,ConvOffCurve3d,ConvOffCurve2d are Standard_True there are means
-- that Offset surfaces , Offset curves 3d and Offset curves 2d are converted to BSPline
-- correspondingly.
ConvertToRevolution (S: Shape from TopoDS) returns Shape from TopoDS;
---Purpose: Returns a new shape with all elementary periodic surfaces converted
-- to Geom_SurfaceOfRevolution
SweptToElementary (S: Shape from TopoDS) returns Shape from TopoDS;
---Purpose: Returns a new shape with all surfaces of revolution and linear extrusion
-- convert to elementary periodic surfaces
ConvertToBSpline (S : Shape from TopoDS;
extrMode : Boolean; revolMode: Boolean;
offsetMode: Boolean; planeMode: Boolean = Standard_False)
returns Shape from TopoDS;
---Purpose: Returns a new shape with all surfaces of linear extrusion, revolution,
-- offset, and planar surfaces converted according to flags to
-- Geom_BSplineSurface (with same parameterisation).
end ShapeCustom;
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