include/opencascade/BRepTools_Modification.hxx

0001 // Created on: 1994-08-25
0002 // Created by: Jacques GOUSSARD
0003 // Copyright (c) 1994-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _BRepTools_Modification_HeaderFile
0018 #define _BRepTools_Modification_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_Type.hxx>
0022
0023 #include <Standard_Transient.hxx>
0024 #include <Standard_Real.hxx>
0025 #include <GeomAbs_Shape.hxx>
0026 class TopoDS_Face;
0027 class Geom_Surface;
0028 class TopLoc_Location;
0029 class TopoDS_Edge;
0030 class Geom_Curve;
0031 class TopoDS_Vertex;
0032 class gp_Pnt;
0033 class Geom2d_Curve;
0034 class Poly_Triangulation;
0035
0036 class Poly_Polygon3D;
0037 class Poly_PolygonOnTriangulation;
0038
0039
0040 class BRepTools_Modification;
0041 DEFINE_STANDARD_HANDLE(BRepTools_Modification, Standard_Transient)
0042
0043 //! Defines geometric modifications to a shape, i.e.
0044 //! changes to faces, edges and vertices.
0045 class BRepTools_Modification : public Standard_Transient
0046 {
0047
0048 public:
0049
0050
0051   //! Returns true if the face, F, has been modified.
0052   //! If the face has been modified:
0053   //! - S is the new geometry of the face,
0054   //! - L is its new location, and
0055   //! - Tol is the new tolerance.
0056   //! The flag, RevWires, is set to true when the
0057   //! modification reverses the normal of the surface, (i.e.
0058   //! the wires have to be reversed).
0059   //! The flag, RevFace, is set to true if the orientation of
0060   //! the modified face changes in the shells which contain it.
0061   //! If the face has not been modified this function returns
0062   //! false, and the values of S, L, Tol, RevWires and
0063   //! RevFace are not significant.
0064   Standard_EXPORT virtual Standard_Boolean NewSurface (const TopoDS_Face& F, Handle(Geom_Surface)& S, TopLoc_Location& L, Standard_Real& Tol, Standard_Boolean& RevWires, Standard_Boolean& RevFace) = 0;
0065
0066   //! Returns true if the face has been modified according to changed triangulation.
0067   //! If the face has been modified:
0068   //! - T is a new triangulation on the face
0069   Standard_EXPORT virtual Standard_Boolean NewTriangulation(const TopoDS_Face& F, Handle(Poly_Triangulation)& T);
0070
0071   //! Returns true if the edge, E, has been modified.
0072   //! If the edge has been modified:
0073   //! - C is the new geometry associated with the edge,
0074   //! - L is its new location, and
0075   //! - Tol is the new tolerance.
0076   //! If the edge has not been modified, this function
0077   //! returns false, and the values of C, L and Tol are not significant.
0078   Standard_EXPORT virtual Standard_Boolean NewCurve (const TopoDS_Edge& E, Handle(Geom_Curve)& C, TopLoc_Location& L, Standard_Real& Tol) = 0;
0079
0080   //! Returns true if the edge has been modified according to changed polygon.
0081   //! If the edge has been modified:
0082   //! - P is a new polygon
0083   Standard_EXPORT virtual Standard_Boolean NewPolygon(const TopoDS_Edge& E, Handle(Poly_Polygon3D)& P);
0084
0085   //! Returns true if the edge has been modified according to changed polygon on triangulation.
0086   //! If the edge has been modified:
0087   //! - P is a new polygon on triangulation
0088   Standard_EXPORT virtual Standard_Boolean NewPolygonOnTriangulation(const TopoDS_Edge& E, const TopoDS_Face& F, Handle(Poly_PolygonOnTriangulation)& P);
0089
0090   //! Returns true if the vertex V has been modified.
0091   //! If V has been modified:
0092   //! - P is the new geometry of the vertex, and
0093   //! - Tol is the new tolerance.
0094   //! If the vertex has not been modified this function
0095   //! returns false, and the values of P and Tol are not significant.
0096   Standard_EXPORT virtual Standard_Boolean NewPoint (const TopoDS_Vertex& V, gp_Pnt& P, Standard_Real& Tol) = 0;
0097
0098   //! Returns true if the edge, E, has a new curve on
0099   //! surface on the face, F.
0100   //! If a new curve exists:
0101   //! - C is the new geometry of the edge,
0102   //! - L is the new location, and
0103   //! - Tol is the new tolerance.
0104   //! NewE is the new edge created from E, and NewF is
0105   //! the new face created from F.
0106   //! If there is no new curve on the face, this function
0107   //! returns false, and the values of C, L and Tol are not significant.
0108   Standard_EXPORT virtual Standard_Boolean NewCurve2d (const TopoDS_Edge& E, const TopoDS_Face& F, const TopoDS_Edge& NewE, const TopoDS_Face& NewF, Handle(Geom2d_Curve)& C, Standard_Real& Tol) = 0;
0109
0110   //! Returns true if the vertex V has a new parameter on the edge E.
0111   //! If a new parameter exists:
0112   //! - P is the parameter, and
0113   //! - Tol is the new tolerance.
0114   //! If there is no new parameter this function returns
0115   //! false, and the values of P and Tol are not significant.
0116   Standard_EXPORT virtual Standard_Boolean NewParameter (const TopoDS_Vertex& V, const TopoDS_Edge& E, Standard_Real& P, Standard_Real& Tol) = 0;
0117
0118   //! Returns the  continuity of  <NewE> between <NewF1>
0119   //! and <NewF2>.
0120   //! <NewE> is the new  edge created from <E>.  <NewF1>
0121   //! (resp. <NewF2>) is the new  face created from <F1>
0122   //! (resp. <F2>).
0123   Standard_EXPORT virtual GeomAbs_Shape Continuity (const TopoDS_Edge& E, const TopoDS_Face& F1, const TopoDS_Face& F2, const TopoDS_Edge& NewE, const TopoDS_Face& NewF1, const TopoDS_Face& NewF2) = 0;
0124
0125
0126
0127
0128   DEFINE_STANDARD_RTTIEXT(BRepTools_Modification,Standard_Transient)
0129
0130 protected:
0131
0132
0133
0134
0135 private:
0136
0137
0138
0139
0140 };
0141
0142
0143
0144
0145
0146
0147
0148 #endif // _BRepTools_Modification_HeaderFile