1 // Created on: 1994-08-25
2 // Created by: Jacques GOUSSARD
3 // Copyright (c) 1994-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _BRepTools_Modification_HeaderFile
18 #define _BRepTools_Modification_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_Type.hxx>
23 #include <Standard_Transient.hxx>
24 #include <Standard_Real.hxx>
25 #include <GeomAbs_Shape.hxx>
28 class TopLoc_Location;
34 class Poly_Triangulation;
37 class Poly_PolygonOnTriangulation;
40 class BRepTools_Modification;
41 DEFINE_STANDARD_HANDLE(BRepTools_Modification, Standard_Transient)
43 //! Defines geometric modifications to a shape, i.e.
44 //! changes to faces, edges and vertices.
45 class BRepTools_Modification : public Standard_Transient
51 //! Returns true if the face, F, has been modified.
52 //! If the face has been modified:
53 //! - S is the new geometry of the face,
54 //! - L is its new location, and
55 //! - Tol is the new tolerance.
56 //! The flag, RevWires, is set to true when the
57 //! modification reverses the normal of the surface, (i.e.
58 //! the wires have to be reversed).
59 //! The flag, RevFace, is set to true if the orientation of
60 //! the modified face changes in the shells which contain it.
61 //! If the face has not been modified this function returns
62 //! false, and the values of S, L, Tol, RevWires and
63 //! RevFace are not significant.
64 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;
66 //! Returns true if the face has been modified according to changed triangulation.
67 //! If the face has been modified:
68 //! - T is a new triangulation on the face
69 Standard_EXPORT virtual Standard_Boolean NewTriangulation(const TopoDS_Face& F, Handle(Poly_Triangulation)& T);
71 //! Returns true if the edge, E, has been modified.
72 //! If the edge has been modified:
73 //! - C is the new geometry associated with the edge,
74 //! - L is its new location, and
75 //! - Tol is the new tolerance.
76 //! If the edge has not been modified, this function
77 //! returns false, and the values of C, L and Tol are not significant.
78 Standard_EXPORT virtual Standard_Boolean NewCurve (const TopoDS_Edge& E, Handle(Geom_Curve)& C, TopLoc_Location& L, Standard_Real& Tol) = 0;
80 //! Returns true if the edge has been modified according to changed polygon.
81 //! If the edge has been modified:
82 //! - P is a new polygon
83 Standard_EXPORT virtual Standard_Boolean NewPolygon(const TopoDS_Edge& E, Handle(Poly_Polygon3D)& P);
85 //! Returns true if the edge has been modified according to changed polygon on triangulation.
86 //! If the edge has been modified:
87 //! - P is a new polygon on triangulation
88 Standard_EXPORT virtual Standard_Boolean NewPolygonOnTriangulation(const TopoDS_Edge& E, const TopoDS_Face& F, Handle(Poly_PolygonOnTriangulation)& P);
90 //! Returns true if the vertex V has been modified.
91 //! If V has been modified:
92 //! - P is the new geometry of the vertex, and
93 //! - Tol is the new tolerance.
94 //! If the vertex has not been modified this function
95 //! returns false, and the values of P and Tol are not significant.
96 Standard_EXPORT virtual Standard_Boolean NewPoint (const TopoDS_Vertex& V, gp_Pnt& P, Standard_Real& Tol) = 0;
98 //! Returns true if the edge, E, has a new curve on
99 //! surface on the face, F.
100 //! If a new curve exists:
101 //! - C is the new geometry of the edge,
102 //! - L is the new location, and
103 //! - Tol is the new tolerance.
104 //! NewE is the new edge created from E, and NewF is
105 //! the new face created from F.
106 //! If there is no new curve on the face, this function
107 //! returns false, and the values of C, L and Tol are not significant.
108 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;
110 //! Returns true if the vertex V has a new parameter on the edge E.
111 //! If a new parameter exists:
112 //! - P is the parameter, and
113 //! - Tol is the new tolerance.
114 //! If there is no new parameter this function returns
115 //! false, and the values of P and Tol are not significant.
116 Standard_EXPORT virtual Standard_Boolean NewParameter (const TopoDS_Vertex& V, const TopoDS_Edge& E, Standard_Real& P, Standard_Real& Tol) = 0;
118 //! Returns the continuity of <NewE> between <NewF1>
120 //! <NewE> is the new edge created from <E>. <NewF1>
121 //! (resp. <NewF2>) is the new face created from <F1>
123 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;
128 DEFINE_STANDARD_RTTIEXT(BRepTools_Modification,Standard_Transient)
148 #endif // _BRepTools_Modification_HeaderFile