// Created on: 1999-03-05 // Created by: Fabrice SERVANT // Copyright (c) 1999 Matra Datavision // Copyright (c) 1999-2014 OPEN CASCADE SAS // // This file is part of Open CASCADE Technology software library. // // This library is free software; you can redistribute it and/or modify it under // the terms of the GNU Lesser General Public License version 2.1 as published // by the Free Software Foundation, with special exception defined in the file // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT // distribution for complete text of the license and disclaimer of any warranty. // // Alternatively, this file may be used under the terms of Open CASCADE // commercial license or contractual agreement. #ifndef _IntPolyh_Triangle_HeaderFile #define _IntPolyh_Triangle_HeaderFile #include #include #include #include #include //! The class represents the triangle built from three IntPolyh points //! and three IntPolyh edges. class IntPolyh_Triangle { public: DEFINE_STANDARD_ALLOC //! Constructor IntPolyh_Triangle() : myHasIntersection(Standard_False), myIsIntersectionPossible(Standard_True), myIsDegenerated(Standard_False), myDeflection(0.0) { myPoints[0] = -1; myPoints[1] = -1; myPoints[2] = -1; myEdges[0] = -1; myEdges[1] = -1; myEdges[2] = -1; myEdgesOrientations[0] = 0; myEdgesOrientations[1] = 0; myEdgesOrientations[2] = 0; } //! Constructor IntPolyh_Triangle(const Standard_Integer thePoint1, const Standard_Integer thePoint2, const Standard_Integer thePoint3) : myHasIntersection(Standard_False), myIsIntersectionPossible(Standard_True), myIsDegenerated(Standard_False), myDeflection(0.0) { myPoints[0] = thePoint1; myPoints[1] = thePoint2; myPoints[2] = thePoint3; myEdges[0] = -1; myEdges[1] = -1; myEdges[2] = -1; myEdgesOrientations[0] = 0; myEdgesOrientations[1] = 0; myEdgesOrientations[2] = 0; } //! Returns the first point Standard_Integer FirstPoint() const { return myPoints[0]; } //! Returns the second point Standard_Integer SecondPoint() const { return myPoints[1]; } //! Returns the third point Standard_Integer ThirdPoint() const { return myPoints[2]; } //! Returns the first edge Standard_Integer FirstEdge() const { return myEdges[0]; } //! Returns the orientation of the first edge Standard_Integer FirstEdgeOrientation() const { return myEdgesOrientations[0]; } //! Returns the second edge Standard_Integer SecondEdge() const { return myEdges[1]; } //! Returns the orientation of the second edge Standard_Integer SecondEdgeOrientation() const { return myEdgesOrientations[1]; } //! Returns the third edge Standard_Integer ThirdEdge() const { return myEdges[2]; } //! Returns the orientation of the third edge Standard_Integer ThirdEdgeOrientation() const { return myEdgesOrientations[2]; } //! Returns the deflection of the triangle Standard_Real Deflection() const { return myDeflection; } //! Returns possibility of the intersection Standard_Boolean IsIntersectionPossible() const { return myIsIntersectionPossible; } //! Returns true if the triangle has interfered the other triangle Standard_Boolean HasIntersection() const { return myHasIntersection; } //! Returns the Degenerated flag Standard_Boolean IsDegenerated() const { return myIsDegenerated; } //! Sets the first point void SetFirstPoint(const Standard_Integer thePoint) { myPoints[0] = thePoint; } //! Sets the second point void SetSecondPoint(const Standard_Integer thePoint) { myPoints[1] = thePoint; } //! Sets the third point void SetThirdPoint(const Standard_Integer thePoint) { myPoints[2] = thePoint; } //! Sets the first edge void SetFirstEdge(const Standard_Integer theEdge, const Standard_Integer theEdgeOrientation) { myEdges[0] = theEdge; myEdgesOrientations[0] = theEdgeOrientation; } //! Sets the second edge void SetSecondEdge(const Standard_Integer theEdge, const Standard_Integer theEdgeOrientation) { myEdges[1] = theEdge; myEdgesOrientations[1] = theEdgeOrientation; } //! Sets the third edge void SetThirdEdge(const Standard_Integer theEdge, const Standard_Integer theEdgeOrientation) { myEdges[2] = theEdge; myEdgesOrientations[2] = theEdgeOrientation; } //! Sets the deflection void SetDeflection(const Standard_Real theDeflection) { myDeflection = theDeflection; } //! Sets the flag of possibility of intersection void SetIntersectionPossible(const Standard_Boolean theIP) { myIsIntersectionPossible = theIP; } //! Sets the flag of intersection void SetIntersection(const Standard_Boolean theInt) { myHasIntersection = theInt; } //! Sets the degenerated flag void SetDegenerated(const Standard_Boolean theDegFlag) { myIsDegenerated = theDegFlag; } //! Gets the edge number by the index Standard_Integer GetEdgeNumber(const Standard_Integer theEdgeIndex) const { return ((theEdgeIndex >= 1 && theEdgeIndex <= 3) ? myEdges[theEdgeIndex - 1] : 0); } //! Sets the edge by the index void SetEdge(const Standard_Integer theEdgeIndex, const Standard_Integer theEdgeNumber) { if (theEdgeIndex >= 1 && theEdgeIndex <= 3) { myEdges[theEdgeIndex - 1] = theEdgeNumber; } } //! Gets the edges orientation by the index Standard_Integer GetEdgeOrientation(const Standard_Integer theEdgeIndex) const { return ((theEdgeIndex >= 1 && theEdgeIndex <= 3) ? myEdgesOrientations[theEdgeIndex - 1] : 0); } //! Sets the edges orientation by the index void SetEdgeOrientation(const Standard_Integer theEdgeIndex, const Standard_Integer theEdgeOrientation) { if (theEdgeIndex >= 1 && theEdgeIndex <= 3) { myEdgesOrientations[theEdgeIndex - 1] = theEdgeOrientation; } } //! Computes the deflection for the triangle Standard_EXPORT Standard_Real ComputeDeflection(const Handle(Adaptor3d_Surface)& theSurface, const IntPolyh_ArrayOfPoints& thePoints); //! Gets the adjacent triangle Standard_EXPORT Standard_Integer GetNextTriangle(const Standard_Integer theTriangle, const Standard_Integer theEdgeNum, const IntPolyh_ArrayOfEdges& TEdges) const; //! Splits the triangle on two to decrease its deflection Standard_EXPORT void MiddleRefinement(const Standard_Integer theTriangleNumber, const Handle(Adaptor3d_Surface)& theSurface, IntPolyh_ArrayOfPoints& TPoints, IntPolyh_ArrayOfTriangles& TTriangles, IntPolyh_ArrayOfEdges& TEdges); //! Splits the current triangle and new triangles until the refinement //! criterion is not achieved Standard_EXPORT void MultipleMiddleRefinement(const Standard_Real theRefineCriterion, const Bnd_Box& theBox, const Standard_Integer theTriangleNumber, const Handle(Adaptor3d_Surface)& theSurface, IntPolyh_ArrayOfPoints& TPoints, IntPolyh_ArrayOfTriangles& TTriangles, IntPolyh_ArrayOfEdges& TEdges); //! Links edges to triangle Standard_EXPORT void LinkEdges2Triangle(const IntPolyh_ArrayOfEdges& TEdges, const Standard_Integer theEdge1, const Standard_Integer theEdge2, const Standard_Integer theEdge3); //! Sets the appropriate edge and orientation for the triangle. Standard_EXPORT void SetEdgeAndOrientation(const IntPolyh_Edge& theEdge, const Standard_Integer theEdgeIndex); //! Returns the bounding box of the triangle. Standard_EXPORT const Bnd_Box& BoundingBox(const IntPolyh_ArrayOfPoints& thePoints); //! Dumps the contents of the triangle. Standard_EXPORT void Dump (const Standard_Integer v) const; protected: private: Standard_Integer myPoints[3]; Standard_Integer myEdges[3]; Standard_Integer myEdgesOrientations[3]; Standard_Boolean myHasIntersection:1; Standard_Boolean myIsIntersectionPossible:1; Standard_Boolean myIsDegenerated:1; Standard_Real myDeflection; Bnd_Box myBox; }; #endif // _IntPolyh_Triangle_HeaderFile