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124 lines
4.0 KiB
C++
124 lines
4.0 KiB
C++
// Created on: 2016-07-04
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// Copyright (c) 2016 OPEN CASCADE SAS
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// Created by: Oleg AGASHIN
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _BRepMesh_FaceChecker_HeaderFile
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#define _BRepMesh_FaceChecker_HeaderFile
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#include <IMeshTools_Parameters.hxx>
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#include <Standard_Transient.hxx>
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#include <IMeshData_Face.hxx>
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#include <Standard_Type.hxx>
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#include <NCollection_Shared.hxx>
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//! Auxiliary class checking wires of target face for self-intersections.
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//! Explodes wires of discrete face on sets of segments using tessellation
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//! data stored in model. Each segment is then checked for intersection with
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//! other ones. All collisions are registered and returned as result of check.
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class BRepMesh_FaceChecker : public Standard_Transient
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{
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public: //! @name mesher API
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//! Identifies segment inside face.
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struct Segment
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{
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IMeshData::IEdgePtr EdgePtr;
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gp_Pnt2d* Point1; // \ Use explicit pointers to points instead of accessing
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gp_Pnt2d* Point2; // / using indices.
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Segment()
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: EdgePtr(NULL),
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Point1(NULL),
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Point2(NULL)
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{
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}
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Segment(const IMeshData::IEdgePtr& theEdgePtr,
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gp_Pnt2d* thePoint1,
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gp_Pnt2d* thePoint2)
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: EdgePtr(theEdgePtr)
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, Point1(thePoint1)
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, Point2(thePoint2)
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{
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}
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};
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typedef NCollection_Shared<NCollection_Vector<Segment> > Segments;
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typedef NCollection_Shared<NCollection_Array1<Handle(Segments)> > ArrayOfSegments;
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typedef NCollection_Shared<NCollection_Array1<Handle(IMeshData::BndBox2dTree)> > ArrayOfBndBoxTree;
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typedef NCollection_Shared<NCollection_Array1<Handle(IMeshData::MapOfIEdgePtr)> > ArrayOfMapOfIEdgePtr;
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//! Default constructor
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Standard_EXPORT BRepMesh_FaceChecker(const IMeshData::IFaceHandle& theFace,
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const IMeshTools_Parameters& theParameters);
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//! Destructor
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Standard_EXPORT virtual ~BRepMesh_FaceChecker();
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//! Performs check wires of the face for intersections.
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//! @return True if there is no intersection, False elsewhere.
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Standard_EXPORT Standard_Boolean Perform();
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//! Returns intersecting edges.
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const Handle(IMeshData::MapOfIEdgePtr)& GetIntersectingEdges() const
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{
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return myIntersectingEdges;
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}
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//! Checks wire with the given index for intersection with others.
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void operator()(const Standard_Integer theWireIndex) const
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{
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perform(theWireIndex);
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}
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DEFINE_STANDARD_RTTIEXT(BRepMesh_FaceChecker, Standard_Transient)
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private:
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//! Returns True in case if check can be performed in parallel mode.
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Standard_Boolean isParallel() const
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{
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return (myParameters.InParallel && myDFace->WiresNb() > 1);
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}
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//! Collects face segments.
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void collectSegments();
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//! Collects intersecting edges.
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void collectResult();
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//! Checks wire with the given index for intersection with others.
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void perform(const Standard_Integer theWireIndex) const;
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private:
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BRepMesh_FaceChecker (const BRepMesh_FaceChecker& theOther);
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void operator=(const BRepMesh_FaceChecker& theOther);
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private:
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IMeshData::IFaceHandle myDFace;
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const IMeshTools_Parameters& myParameters;
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Handle(ArrayOfSegments) myWiresSegments;
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Handle(ArrayOfBndBoxTree) myWiresBndBoxTree;
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Handle(ArrayOfMapOfIEdgePtr) myWiresIntersectingEdges;
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Handle(IMeshData::MapOfIEdgePtr) myIntersectingEdges;
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};
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#endif
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