include/opencascade/BRepTools_TrsfModification.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_TrsfModification_HeaderFile
0018 #define _BRepTools_TrsfModification_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_Type.hxx>
0022
0023 #include <gp_Trsf.hxx>
0024 #include <BRepTools_Modification.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
0035 class BRepTools_TrsfModification;
0036 DEFINE_STANDARD_HANDLE(BRepTools_TrsfModification, BRepTools_Modification)
0037
0038 //! Describes a modification that uses a gp_Trsf to
0039 //! change the geometry of a shape. All functions return
0040 //! true and transform the geometry of the shape.
0041 class BRepTools_TrsfModification : public BRepTools_Modification
0042 {
0043
0044 public:
0045   Standard_EXPORT BRepTools_TrsfModification(const gp_Trsf& T);
0046
0047   //! Provides access to the gp_Trsf associated with this
0048   //! modification. The transformation can be changed.
0049   Standard_EXPORT gp_Trsf& Trsf();
0050
0051   //! Sets a flag to indicate the need to copy mesh.
0052   Standard_EXPORT Standard_Boolean& IsCopyMesh();
0053
0054   //! Returns true if the face F has been modified.
0055   //! If the face has been modified:
0056   //! - S is the new geometry of the face,
0057   //! - L is its new location, and
0058   //! - Tol is the new tolerance.
0059   //! RevWires is set to true when the modification
0060   //! reverses the normal of the surface (the wires have to be reversed).
0061   //! RevFace is set to true if the orientation of the
0062   //! modified face changes in the shells which contain it.
0063   //! For this class, RevFace returns true if the gp_Trsf
0064   //! associated with this modification is negative.
0065   Standard_EXPORT Standard_Boolean NewSurface(const TopoDS_Face&    F,
0066                                               Handle(Geom_Surface)& S,
0067                                               TopLoc_Location&      L,
0068                                               Standard_Real&        Tol,
0069                                               Standard_Boolean&     RevWires,
0070                                               Standard_Boolean&     RevFace) Standard_OVERRIDE;
0071
0072   //! Returns true if the face has been modified according to changed triangulation.
0073   //! If the face has been modified:
0074   //! - T is a new triangulation on the face
0075   Standard_EXPORT Standard_Boolean
0076     NewTriangulation(const TopoDS_Face& F, Handle(Poly_Triangulation)& T) Standard_OVERRIDE;
0077
0078   //! Returns true if the edge has been modified according to changed polygon.
0079   //! If the edge has been modified:
0080   //! - P is a new polygon
0081   Standard_EXPORT Standard_Boolean NewPolygon(const TopoDS_Edge&      E,
0082                                               Handle(Poly_Polygon3D)& P) Standard_OVERRIDE;
0083
0084   //! Returns true if the edge has been modified according to changed polygon on triangulation.
0085   //! If the edge has been modified:
0086   //! - P is a new polygon on triangulation
0087   Standard_EXPORT Standard_Boolean NewPolygonOnTriangulation(const TopoDS_Edge&                   E,
0088                                                              const TopoDS_Face&                   F,
0089                                                              Handle(Poly_PolygonOnTriangulation)& P)
0090     Standard_OVERRIDE;
0091
0092   //! Always returns true indicating that the edge E is always modified.
0093   //! - C is the new geometric support of the edge,
0094   //! - L is the new location, and
0095   //! - Tol is the new tolerance.
0096   Standard_EXPORT Standard_Boolean NewCurve(const TopoDS_Edge&  E,
0097                                             Handle(Geom_Curve)& C,
0098                                             TopLoc_Location&    L,
0099                                             Standard_Real&      Tol) Standard_OVERRIDE;
0100
0101   //! Returns true if the vertex V has been modified.
0102   //! If the vertex has been modified:
0103   //! - P is the new geometry of the vertex, and
0104   //! - Tol is the new tolerance.
0105   //! If the vertex has not been modified this function
0106   //! returns false, and the values of P and Tol are not significant.
0107   Standard_EXPORT Standard_Boolean NewPoint(const TopoDS_Vertex& V,
0108                                             gp_Pnt&              P,
0109                                             Standard_Real&       Tol) Standard_OVERRIDE;
0110
0111   //! Returns true if the edge E has a new curve on surface on the face F.
0112   //! If a new curve exists:
0113   //! - C is the new geometric support of the edge,
0114   //! - L is the new location, and
0115   //! - Tol the new tolerance.
0116   //! If no new curve exists, this function returns false, and
0117   //! the values of C, L and Tol are not significant.
0118   Standard_EXPORT Standard_Boolean NewCurve2d(const TopoDS_Edge&    E,
0119                                               const TopoDS_Face&    F,
0120                                               const TopoDS_Edge&    NewE,
0121                                               const TopoDS_Face&    NewF,
0122                                               Handle(Geom2d_Curve)& C,
0123                                               Standard_Real&        Tol) Standard_OVERRIDE;
0124
0125   //! Returns true if the Vertex V has a new parameter on the edge E.
0126   //! If a new parameter exists:
0127   //! - P is the parameter, and
0128   //! - Tol is the new tolerance.
0129   //! If no new parameter exists, this function returns false,
0130   //! and the values of P and Tol are not significant.
0131   Standard_EXPORT Standard_Boolean NewParameter(const TopoDS_Vertex& V,
0132                                                 const TopoDS_Edge&   E,
0133                                                 Standard_Real&       P,
0134                                                 Standard_Real&       Tol) Standard_OVERRIDE;
0135
0136   //! Returns the  continuity of  <NewE> between <NewF1>
0137   //! and <NewF2>.
0138   //!
0139   //! <NewE> is the new  edge created from <E>.  <NewF1>
0140   //! (resp. <NewF2>) is the new  face created from <F1>
0141   //! (resp. <F2>).
0142   Standard_EXPORT GeomAbs_Shape Continuity(const TopoDS_Edge& E,
0143                                            const TopoDS_Face& F1,
0144                                            const TopoDS_Face& F2,
0145                                            const TopoDS_Edge& NewE,
0146                                            const TopoDS_Face& NewF1,
0147                                            const TopoDS_Face& NewF2) Standard_OVERRIDE;
0148
0149   DEFINE_STANDARD_RTTIEXT(BRepTools_TrsfModification, BRepTools_Modification)
0150
0151 protected:
0152 private:
0153   gp_Trsf          myTrsf;
0154   Standard_Boolean myCopyMesh;
0155 };
0156
0157 #endif // _BRepTools_TrsfModification_HeaderFile