120ca87015
git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5000 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d
86 lines
3.3 KiB
C++
86 lines
3.3 KiB
C++
/***************************************************************************
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* Copyright (c) 2005 Werner Mayer <wmayer[at]users.sourceforge.net> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#ifndef MESH_PROJECTION_H
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#define MESH_PROJECTION_H
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#include <vector>
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#include <Base/Vector3D.h>
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#ifdef FC_USE_OCC
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using Base::Vector3f;
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class TopoDS_Edge;
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class TopoDS_Shape;
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namespace MeshCore
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{
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class MeshFacetGrid;
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class MeshKernel;
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class MeshGeomFacet;
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/// Helper class
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struct SplitEdge
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{
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unsigned long uE0, uE1; /**< start and endpoint of an edge */
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Base::Vector3f cPt; /**< Point on edge (\a uE0, \a uE1) */
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};
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/**
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* The MeshProjection class projects a shape onto a mesh.
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* @author Werner Mayer
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*/
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class MeshExport MeshProjection
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{
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public:
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/// Construction
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MeshProjection( const MeshKernel& rMesh);
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/// Destruction
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~MeshProjection();
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/**
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* Searches all edges that intersect with the projected curve \a aShape. Therefore \a aShape must
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* contain shapes of type TopoDS_Edge, other shape types are ignored. A possible solution is
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* taken if the distance between the curve point and the projected point is <= \a fMaxDist.
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*/
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void projectToMesh ( const TopoDS_Shape &aShape, float fMaxDist, std::vector<SplitEdge>& rSplitEdges ) const;
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/**
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* Cuts the mesh at the curve defined by \a aShape. This method call @ref projectToMesh() to get the
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* split the facet at the found points. @see projectToMesh() for more details.
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*/
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void splitMeshByShape ( const TopoDS_Shape &aShape, float fMaxDist ) const;
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protected:
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void projectEdgeToEdge( const TopoDS_Edge &aCurve, float fMaxDist, const MeshFacetGrid& rGrid,
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std::vector<SplitEdge>& rSplitEdges ) const;
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private:
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const MeshKernel& _rcMesh;
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};
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} // namespace MeshCore
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#endif
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#endif // MESH_PROJECTION_H
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