include/opencascade/BRepMesh_EdgeDiscret.hxx

0001 // Created on: 2016-04-19
0002 // Copyright (c) 2016 OPEN CASCADE SAS
0003 // Created by: Oleg AGASHIN
0004 //
0005 // This file is part of Open CASCADE Technology software library.
0006 //
0007 // This library is free software; you can redistribute it and/or modify it under
0008 // the terms of the GNU Lesser General Public License version 2.1 as published
0009 // by the Free Software Foundation, with special exception defined in the file
0010 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0011 // distribution for complete text of the license and disclaimer of any warranty.
0012 //
0013 // Alternatively, this file may be used under the terms of Open CASCADE
0014 // commercial license or contractual agreement.
0015
0016 #ifndef _BRepMesh_EdgeDiscret_HeaderFile
0017 #define _BRepMesh_EdgeDiscret_HeaderFile
0018
0019 #include <IMeshTools_ModelAlgo.hxx>
0020 #include <IMeshTools_Parameters.hxx>
0021 #include <IMeshData_Types.hxx>
0022
0023 class IMeshTools_CurveTessellator;
0024
0025 //! Class implements functionality of edge discret tool.
0026 //! Performs check of the edges for existing Poly_PolygonOnTriangulation.
0027 //! In case if it fits specified deflection, restores data structure using
0028 //! it, else clears edges from outdated data.
0029 class BRepMesh_EdgeDiscret : public IMeshTools_ModelAlgo
0030 {
0031 public:
0032   //! Constructor.
0033   Standard_EXPORT BRepMesh_EdgeDiscret();
0034
0035   //! Destructor.
0036   Standard_EXPORT ~BRepMesh_EdgeDiscret() override;
0037
0038   //! Creates instance of free edge tessellator.
0039   Standard_EXPORT static occ::handle<IMeshTools_CurveTessellator> CreateEdgeTessellator(
0040     const IMeshData::IEdgeHandle& theDEdge,
0041     const IMeshTools_Parameters&  theParameters,
0042     const int                     theMinPointsNb = 2);
0043
0044   //! Creates instance of edge tessellator.
0045   Standard_EXPORT static occ::handle<IMeshTools_CurveTessellator> CreateEdgeTessellator(
0046     const IMeshData::IEdgeHandle& theDEdge,
0047     const TopAbs_Orientation      theOrientation,
0048     const IMeshData::IFaceHandle& theDFace,
0049     const IMeshTools_Parameters&  theParameters,
0050     const int                     theMinPointsNb = 2);
0051
0052   //! Creates instance of tessellation extractor.
0053   Standard_EXPORT static occ::handle<IMeshTools_CurveTessellator> CreateEdgeTessellationExtractor(
0054     const IMeshData::IEdgeHandle& theDEdge,
0055     const IMeshData::IFaceHandle& theDFace);
0056
0057   //! Functor API to discretize the given edge.
0058   void operator()(const int theEdgeIndex) const { process(theEdgeIndex); }
0059
0060   //! Updates 3d discrete edge model using the given tessellation tool.
0061   Standard_EXPORT static void Tessellate3d(
0062     const IMeshData::IEdgeHandle&                   theDEdge,
0063     const occ::handle<IMeshTools_CurveTessellator>& theTessellator,
0064     const bool                                      theUpdateEnds);
0065
0066   //! Updates 2d discrete edge model using tessellation of 3D curve.
0067   Standard_EXPORT static void Tessellate2d(const IMeshData::IEdgeHandle& theDEdge,
0068                                            const bool                    theUpdateEnds);
0069
0070   DEFINE_STANDARD_RTTIEXT(BRepMesh_EdgeDiscret, IMeshTools_ModelAlgo)
0071
0072 protected:
0073   //! Performs processing of edges of the given model.
0074   Standard_EXPORT bool performInternal(const occ::handle<IMeshData_Model>& theModel,
0075                                        const IMeshTools_Parameters&        theParameters,
0076                                        const Message_ProgressRange&        theRange) override;
0077
0078 private:
0079   //! Checks existing discretization of the edge and updates data model.
0080   void process(const int theEdgeIndex) const;
0081
0082   //! Checks existing polygon on triangulation does it fit edge deflection or not.
0083   //! @return deflection of polygon or RealLast () in case if edge has no polygon
0084   //! or it was dropped.
0085   double checkExistingPolygonAndUpdateStatus(const IMeshData::IEdgeHandle&   theDEdge,
0086                                              const IMeshData::IPCurveHandle& thePCurve) const;
0087
0088 private:
0089   occ::handle<IMeshData_Model> myModel;
0090   IMeshTools_Parameters        myParameters;
0091 };
0092
0093 #endif