// Copyright (C) 2007-2014 CEA/DEN, EDF R&D, OPEN CASCADE // // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN, // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS // // This library is free software; you can redistribute it and/or // modify it under the terms of the GNU Lesser General Public // License as published by the Free Software Foundation; either // version 2.1 of the License, or (at your option) any later version. // // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public // License along with this library; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA // // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com // #ifndef _GEOMUtils_HXX_ #define _GEOMUtils_HXX_ #include #include #include #include #include #include #include #include #include #include class Bnd_Box; inline Standard_Boolean IsEqual (const TopoDS_Shape& S1, const TopoDS_Shape& S2) { return S1.IsSame(S2); } class GEOMUtils { public: /*! * \brief Get Local Coordinate System, corresponding to the given shape. * * Origin of the LCS is situated at the shape's center of mass. * Axes of the LCS are obtained from shape's location or, * if the shape is a planar face, from position of its plane. */ Standard_EXPORT static gp_Ax3 GetPosition (const TopoDS_Shape& theShape); /*! * \brief Get vector, defined by the given edge. * \param theShape The edge. * \param doConsiderOrientation If True, take into account the edge orientation. * \note It is recommended to use doConsiderOrientation=Standard_False, because * the same edge can have different orientation depending on the way it was * extracted from a shape. */ Standard_EXPORT static gp_Vec GetVector (const TopoDS_Shape& theShape, Standard_Boolean doConsiderOrientation); /*! * \brief Sort shapes in the list by their coordinates. * \param SL The list of shapes to sort. */ struct CompareShapes : public std::binary_function { CompareShapes (bool isOldSorting) : myIsOldSorting(isOldSorting) {} bool operator() (const TopoDS_Shape& lhs, const TopoDS_Shape& rhs); typedef NCollection_DataMap > GEOMUtils_DataMapOfShapeDouble; GEOMUtils_DataMapOfShapeDouble myMap; bool myIsOldSorting; }; /*! * \brief Sort shapes by their centers of mass, using formula X*999 + Y*99 + Z*0.9 */ Standard_EXPORT static void SortShapes (TopTools_ListOfShape& SL, const Standard_Boolean isOldSorting = Standard_True); /*! * \brief Convert TopoDS_COMPSOLID to TopoDS_COMPOUND. * * If the argument shape is not of type TopoDS_COMPSOLID, this method returns it as is. * * \param theCompsolid The compsolid to be converted. * \retval TopoDS_Shape Returns the resulting compound. */ Standard_EXPORT static TopoDS_Shape CompsolidToCompound (const TopoDS_Shape& theCompsolid); /*! * \brief Recursively extract all shapes from compounds and compsolids of the given shape into theList. * * If theShape is not compound or compsolid, theList will contain only theShape itself. * * \param theShape The shape to be exploded. * \param theList Output parameter. */ Standard_EXPORT static void AddSimpleShapes (const TopoDS_Shape& theShape, TopTools_ListOfShape& theList); /*! * \brief Build a triangulation on \a theShape if it is absent. * \param theShape The shape to check/build triangulation on. * \retval bool Returns false if the shape has no faces, i.e. impossible to build triangulation. */ Standard_EXPORT static bool CheckTriangulation (const TopoDS_Shape& theShape); /*! * \brief Return type of shape for explode. In case of compound it will be a type of its first sub shape. * \param theShape The shape to get type of. * \retval TopAbs_ShapeEnum Return type of shape for explode. */ Standard_EXPORT static TopAbs_ShapeEnum GetTypeOfSimplePart (const TopoDS_Shape& theShape); /*! * \brief Find an edge of theShape, closest to thePoint. * * \param theShape The shape to explore. * \param thePoint The point near the required edge. * \retval TopoDS_Shape Returns the found edge or an empty shape if multiple edges found. */ Standard_EXPORT static TopoDS_Shape GetEdgeNearPoint (const TopoDS_Shape& theShape, const TopoDS_Vertex& thePoint); /*! * \brief Compute precise bounding box of the shape based on the rough bounding box. * * \param theShape the shape. * \param theBox rough bounding box on input; precise bounding box on output. * \retval Standard_True in case of success; Standard_False otherwise. */ Standard_EXPORT static Standard_Boolean PreciseBoundingBox (const TopoDS_Shape &theShape, Bnd_Box &theBox); /*! * \brief Computes minumal distance between two shapes for singular cases * (workaround for bugs 19899, 19908 and 19910 from Mantis). * * \param aSh1 the first shape * \param aSh2 the second shape * \param Ptmp1 the output result point on the first shape * \param Ptmp2 the output result point on the second shape * \retval negative value if it is not a singular case; actual distance for singular case. */ Standard_EXPORT static Standard_Real GetMinDistanceSingular (const TopoDS_Shape& aSh1, const TopoDS_Shape& aSh2, gp_Pnt& Ptmp1, gp_Pnt& Ptmp2); /*! * \brief Computes minumal distance between two shapes. * * \param theShape1 the first shape * \param theShape2 the second shape * \param thePnt1 the output result point on the first shape * \param thePnt2 the output result point on the second shape * \retval negative value in case of failure; otherwise the real distance. */ Standard_EXPORT static Standard_Real GetMinDistance (const TopoDS_Shape& theShape1, const TopoDS_Shape& theShape2, gp_Pnt& thePnt1, gp_Pnt& thePnt2); /*! * \brief Returns the point clicked in 3D view. * * \param x The X coordinate in the view. * \param y The Y coordinate in the view. * \param theView View where the given point takes place. * \retval gp_Pnt Returns the point clicked in 3D view */ Standard_EXPORT static gp_Pnt ConvertClickToPoint( int x, int y, Handle(V3d_View) theView ); private: /** * This function constructs and returns modified shape from the original one * for singular cases. It is used for the method GetMinDistanceSingular. * * \param theShape the original shape * \param theModifiedShape output parameter. The modified shape. * \param theAddDist output parameter. The added distance for modified shape. * \retval true if the shape is modified; false otherwise. */ static Standard_Boolean ModifyShape(const TopoDS_Shape &theShape, TopoDS_Shape &theModifiedShape, Standard_Real &theAddDist); }; #endif