// Created on: 1997-05-15 // Created by: Robert COUBLANC // Copyright (c) 1997-1999 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 _Select3D_SensitiveTriangulation_Header #define _Select3D_SensitiveTriangulation_Header #include #include #include #include #include #include #include class Poly_Triangle; class Poly_Triangulation; //! A framework to define selection of a sensitive entity made of a set of triangles. class Select3D_SensitiveTriangulation : public Select3D_SensitiveSet { DEFINE_STANDARD_RTTIEXT(Select3D_SensitiveTriangulation, Select3D_SensitiveSet) public: //! Constructs a sensitive triangulation object defined by //! the owner theOwnerId, the triangulation theTrg, //! the location theInitLoc, and the flag theIsInterior. Standard_EXPORT Select3D_SensitiveTriangulation (const Handle(SelectMgr_EntityOwner)& theOwnerId, const Handle(Poly_Triangulation)& theTrg, const TopLoc_Location& theInitLoc, const Standard_Boolean theIsInterior = Standard_True); //! Constructs a sensitive triangulation object defined by //! the owner theOwnerId, the triangulation theTrg, //! the location theInitLoc, the array of free edges //! theFreeEdges, the center of gravity theCOG, and the flag theIsInterior. //! As free edges and the center of gravity do not have //! to be computed later, this syntax reduces computation time. Standard_EXPORT Select3D_SensitiveTriangulation (const Handle(SelectMgr_EntityOwner)& theOwnerId, const Handle(Poly_Triangulation)& theTrg, const TopLoc_Location& theInitLoc, const Handle(TColStd_HArray1OfInteger)& theFreeEdges, const gp_Pnt& theCOG, const Standard_Boolean theIsInterior); public: //! Get last detected triangle. //! @param theTriangle [out] triangle node indexes //! @return TRUE if defined Standard_EXPORT bool LastDetectedTriangle (Poly_Triangle& theTriangle) const; //! Get last detected triangle. //! @param theTriangle [out] triangle node indexes //! @param theTriNodes [out] triangle nodes (with pre-applied transformation) //! @return TRUE if defined Standard_EXPORT bool LastDetectedTriangle (Poly_Triangle& theTriangle, gp_Pnt theTriNodes[3]) const; //! Return index of last detected triangle within [1..NbTris] range, or -1 if undefined. Standard_Integer LastDetectedTriangleIndex() const { return (myDetectedIdx != -1 && mySensType == Select3D_TOS_INTERIOR && !myBVHPrimIndexes.IsNull()) ? myBVHPrimIndexes->Value (myDetectedIdx) + 1 : -1; } public: //! Returns the amount of nodes in triangulation Standard_EXPORT virtual Standard_Integer NbSubElements() const Standard_OVERRIDE; Standard_EXPORT Handle(Select3D_SensitiveEntity) GetConnected() Standard_OVERRIDE; const Handle(Poly_Triangulation)& Triangulation() const { return myTriangul; } //! Returns the length of array of triangles or edges Standard_EXPORT virtual Standard_Integer Size() const Standard_OVERRIDE; //! Returns bounding box of triangle/edge with index theIdx Standard_EXPORT virtual Select3D_BndBox3d Box (const Standard_Integer theIdx) const Standard_OVERRIDE; //! Returns geometry center of triangle/edge with index theIdx //! in array along the given axis theAxis Standard_EXPORT virtual Standard_Real Center (const Standard_Integer theIdx, const Standard_Integer theAxis) const Standard_OVERRIDE; //! Swaps items with indexes theIdx1 and theIdx2 in array Standard_EXPORT virtual void Swap (const Standard_Integer theIdx1, const Standard_Integer theIdx2) Standard_OVERRIDE; //! Returns bounding box of the triangulation. If location //! transformation is set, it will be applied Standard_EXPORT virtual Select3D_BndBox3d BoundingBox() Standard_OVERRIDE; //! Returns center of triangulation. If location transformation //! is set, it will be applied Standard_EXPORT virtual gp_Pnt CenterOfGeometry() const Standard_OVERRIDE; //! Returns true if the shape corresponding to the entity has init location Standard_EXPORT virtual Standard_Boolean HasInitLocation() const Standard_OVERRIDE; //! Returns inversed location transformation matrix if the shape corresponding //! to this entity has init location set. Otherwise, returns identity matrix. Standard_EXPORT virtual gp_GTrsf InvInitLocation() const Standard_OVERRIDE; const TopLoc_Location& GetInitLocation() const { return myInitLocation; } //! Dumps the content of me into the stream Standard_EXPORT virtual void DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth = -1) const Standard_OVERRIDE; //! Checks whether one or more entities of the set overlap current selecting volume. Standard_EXPORT virtual Standard_Boolean Matches (SelectBasics_SelectingVolumeManager& theMgr, SelectBasics_PickResult& thePickResult) Standard_OVERRIDE; protected: //! Compute bounding box. void computeBoundingBox(); //! Inner function for transformation application to bounding //! box of the triangulation Select3D_BndBox3d applyTransformation(); private: //! Checks whether the element with index theIdx overlaps the current selecting volume Standard_EXPORT virtual Standard_Boolean overlapsElement (SelectBasics_PickResult& thePickResult, SelectBasics_SelectingVolumeManager& theMgr, Standard_Integer theElemIdx, Standard_Boolean theIsFullInside) Standard_OVERRIDE; //! Calculates distance from the 3d projection of used-picked screen point to center of the geometry Standard_EXPORT virtual Standard_Real distanceToCOG (SelectBasics_SelectingVolumeManager& theMgr) Standard_OVERRIDE; //! Checks whether the entity with index theIdx is inside the current selecting volume Standard_EXPORT virtual Standard_Boolean elementIsInside (SelectBasics_SelectingVolumeManager& theMgr, Standard_Integer theElemIdx, Standard_Boolean theIsFullInside) Standard_OVERRIDE; protected: Handle(Poly_Triangulation) myTriangul; TopLoc_Location myInitLocation; gp_Pnt myCDG3D; //!< Center of the whole triangulation Handle(TColStd_HArray1OfInteger) myFreeEdges; Standard_Boolean mySensType; //!< Type of sensitivity: boundary or interior Standard_Integer myPrimitivesNb; //!< Amount of free edges or triangles depending on sensitivity type Handle(TColStd_HArray1OfInteger) myBVHPrimIndexes; //!< Indexes of edges or triangles for BVH build mutable Select3D_BndBox3d myBndBox; //!< Bounding box of the whole triangulation gp_GTrsf myInvInitLocation; }; DEFINE_STANDARD_HANDLE(Select3D_SensitiveTriangulation, Select3D_SensitiveSet) #endif // _Select3D_SensitiveTriangulation_Header