1 // Copyright (C) 2007-2012 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
22 #ifndef _GEOMUtils_HXX_
23 #define _GEOMUtils_HXX_
25 #include <TopoDS_Shape.hxx>
26 #include <TopoDS_Vertex.hxx>
28 #include <TopTools_ListOfShape.hxx>
35 #include <NCollection_DataMap.hxx>
39 inline Standard_Boolean IsEqual (const TopoDS_Shape& S1, const TopoDS_Shape& S2)
48 * \brief Get Local Coordinate System, corresponding to the given shape.
50 * Origin of the LCS is situated at the shape's center of mass.
51 * Axes of the LCS are obtained from shape's location or,
52 * if the shape is a planar face, from position of its plane.
54 Standard_EXPORT static gp_Ax3 GetPosition (const TopoDS_Shape& theShape);
57 * \brief Get vector, defined by the given edge.
59 Standard_EXPORT static gp_Vec GetVector (const TopoDS_Shape& theShape);
62 * \brief Sort shapes in the list by their coordinates.
63 * \param SL The list of shapes to sort.
65 struct CompareShapes : public std::binary_function<TopoDS_Shape, TopoDS_Shape, bool>
67 CompareShapes (bool isOldSorting)
68 : myIsOldSorting(isOldSorting) {}
70 bool operator() (const TopoDS_Shape& lhs, const TopoDS_Shape& rhs);
72 typedef NCollection_DataMap<TopoDS_Shape, std::pair<double, double> > GEOMUtils_DataMapOfShapeDouble;
73 GEOMUtils_DataMapOfShapeDouble myMap;
78 * \brief Sort shapes by their centers of mass, using formula X*999 + Y*99 + Z*0.9
80 Standard_EXPORT static void SortShapes (TopTools_ListOfShape& SL,
81 const Standard_Boolean isOldSorting = Standard_True);
84 * \brief Convert TopoDS_COMPSOLID to TopoDS_COMPOUND.
86 * If the argument shape is not of type TopoDS_COMPSOLID, this method returns it as is.
88 * \param theCompsolid The compsolid to be converted.
89 * \retval TopoDS_Shape Returns the resulting compound.
91 Standard_EXPORT static TopoDS_Shape CompsolidToCompound (const TopoDS_Shape& theCompsolid);
94 * \brief Recursively extract all shapes from compounds and compsolids of the given shape into theList.
96 * If theShape is not compound or compsolid, theList will contain only theShape itself.
98 * \param theShape The shape to be exploded.
99 * \param theList Output parameter.
101 Standard_EXPORT static void AddSimpleShapes (const TopoDS_Shape& theShape,
102 TopTools_ListOfShape& theList);
105 * \brief Build a triangulation on \a theShape if it is absent.
106 * \param theShape The shape to check/build triangulation on.
107 * \retval bool Returns false if the shape has no faces, i.e. impossible to build triangulation.
109 Standard_EXPORT static bool CheckTriangulation (const TopoDS_Shape& theShape);
112 * \brief Return type of shape for explode. In case of compound it will be a type of its first sub shape.
113 * \param theShape The shape to get type of.
114 * \retval TopAbs_ShapeEnum Return type of shape for explode.
116 Standard_EXPORT static TopAbs_ShapeEnum GetTypeOfSimplePart (const TopoDS_Shape& theShape);
119 * \brief Find an edge of theShape, closest to thePoint.
121 * \param theShape The shape to explore.
122 * \param thePoint The point near the required edge.
123 * \retval TopoDS_Shape Returns the found edge or an empty shape if multiple edges found.
125 Standard_EXPORT static TopoDS_Shape GetEdgeNearPoint (const TopoDS_Shape& theShape,
126 const TopoDS_Vertex& thePoint);