| | 1 | // Created on: 1992-11-19 |
| | 2 | // Created by: Remi LEQUETTE |
| | 3 | // Copyright (c) 1992-1999 Matra Datavision |
| | 4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
| | 5 | // |
| | 6 | // This file is part of Open CASCADE Technology software library. |
| | 7 | // |
| | 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. |
| | 13 | // |
| | 14 | // Alternatively, this file may be used under the terms of Open CASCADE |
| | 15 | // commercial license or contractual agreement. |
| | 16 | |
| | 17 | #ifndef _BRepClass_FaceExplorer_HeaderFile |
| | 18 | #define _BRepClass_FaceExplorer_HeaderFile |
| | 19 | |
| | 20 | #include <Standard.hxx> |
| | 21 | #include <Standard_DefineAlloc.hxx> |
| | 22 | #include <Standard_Handle.hxx> |
| | 23 | #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx> |
| | 24 | |
| | 25 | #include <TopAbs_Orientation.hxx> |
| | 26 | #include <TopoDS_Face.hxx> |
| | 27 | #include <TopExp_Explorer.hxx> |
| | 28 | #include <Standard_Integer.hxx> |
| | 29 | #include <Standard_Real.hxx> |
| | 30 | #include <Standard_Boolean.hxx> |
| | 31 | class gp_Pnt2d; |
| | 32 | class gp_Lin2d; |
| | 33 | class BRepClass_Edge; |
| | 34 | |
| | 35 | |
| | 36 | //! Provide an exploration of a BRep Face for the |
| | 37 | //! classification. Return UV edges. |
| | 38 | class BRepClass_FaceExplorer |
| | 39 | { |
| | 40 | public: |
| | 41 | |
| | 42 | DEFINE_STANDARD_ALLOC |
| | 43 | |
| | 44 | |
| | 45 | Standard_EXPORT BRepClass_FaceExplorer(const TopoDS_Face& F); |
| | 46 | |
| | 47 | //! Checks the point and change its coords if it is located too far |
| | 48 | //! from the bounding box of the face. New Coordinates of the point |
| | 49 | //! will be on the line between the point and the center of the |
| | 50 | //! bounding box. Returns True if point was not changed. |
| | 51 | Standard_EXPORT Standard_Boolean CheckPoint (gp_Pnt2d& thePoint); |
| | 52 | |
| | 53 | //! Should return True if the point is outside a |
| | 54 | //! bounding volume of the face. |
| | 55 | Standard_EXPORT Standard_Boolean Reject (const gp_Pnt2d& P) const; |
| | 56 | |
| | 57 | //! Returns in <L>, <Par> a segment having at least |
| | 58 | //! one intersection with the face boundary to |
| | 59 | //! compute intersections. |
| | 60 | Standard_EXPORT Standard_Boolean Segment (const gp_Pnt2d& P, gp_Lin2d& L, Standard_Real& Par); |
| | 61 | |
| | 62 | //! Returns in <L>, <Par> a segment having at least |
| | 63 | //! one intersection with the face boundary to |
| | 64 | //! compute intersections. Each call gives another segment. |
| | 65 | Standard_EXPORT Standard_Boolean OtherSegment (const gp_Pnt2d& P, gp_Lin2d& L, Standard_Real& Par); |
| | 66 | |
| | 67 | //! Starts an exploration of the wires. |
| | 68 | Standard_EXPORT void InitWires(); |
| | 69 | |
| | 70 | //! Returns True if there is a current wire. |
| | 71 | Standard_Boolean MoreWires() const; |
| | 72 | |
| | 73 | //! Sets the explorer to the next wire. |
| | 74 | void NextWire(); |
| | 75 | |
| | 76 | //! Returns True if the wire bounding volume does not |
| | 77 | //! intersect the segment. |
| | 78 | Standard_EXPORT Standard_Boolean RejectWire (const gp_Lin2d& L, const Standard_Real Par) const; |
| | 79 | |
| | 80 | //! Starts an exploration of the edges of the current |
| | 81 | //! wire. |
| | 82 | Standard_EXPORT void InitEdges(); |
| | 83 | |
| | 84 | //! Returns True if there is a current edge. |
| | 85 | Standard_Boolean MoreEdges() const; |
| | 86 | |
| | 87 | //! Sets the explorer to the next edge. |
| | 88 | void NextEdge(); |
| | 89 | |
| | 90 | //! Returns True if the edge bounding volume does not |
| | 91 | //! intersect the segment. |
| | 92 | Standard_EXPORT Standard_Boolean RejectEdge (const gp_Lin2d& L, const Standard_Real Par) const; |
| | 93 | |
| | 94 | //! Current edge in current wire and its orientation. |
| | 95 | Standard_EXPORT void CurrentEdge (BRepClass_Edge& E, TopAbs_Orientation& Or) const; |
| | 96 | |
| | 97 | |
| | 98 | |
| | 99 | |
| | 100 | protected: |
| | 101 | |
| | 102 | //! Computes UV bounds of a face |
| | 103 | Standard_EXPORT void ComputeFaceBounds(); |
| | 104 | |
| | 105 | |
| | 106 | private: |
| | 107 | |
| | 108 | |
| | 109 | |
| | 110 | TopoDS_Face myFace; |
| | 111 | TopExp_Explorer myWExplorer; |
| | 112 | TopExp_Explorer myEExplorer; |
| | 113 | Standard_Integer myCurEdgeInd; |
| | 114 | Standard_Real myCurEdgePar; |
| | 115 | TopTools_IndexedDataMapOfShapeListOfShape myMapVE; |
| | 116 | |
| | 117 | Standard_Real myUMin; |
| | 118 | Standard_Real myUMax; |
| | 119 | Standard_Real myVMin; |
| | 120 | Standard_Real myVMax; |
| | 121 | }; |
| | 122 | |
| | 123 | |
| | 124 | #include <BRepClass_FaceExplorer.lxx> |
| | 125 | |
| | 126 | |
| | 127 | |
| | 128 | |
| | 129 | |
| | 130 | #endif // _BRepClass_FaceExplorer_HeaderFile |
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