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160 lines
7.8 KiB
C++
160 lines
7.8 KiB
C++
// Created on: 1997-05-15
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// Created by: Robert COUBLANC
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// Copyright (c) 1997-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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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 _Select3D_SensitiveTriangulation_Header
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#define _Select3D_SensitiveTriangulation_Header
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#include <TopLoc_Location.hxx>
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#include <gp_Trsf.hxx>
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#include <gp_Pnt.hxx>
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#include <TColStd_HArray1OfInteger.hxx>
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#include <Select3D_SensitiveEntity.hxx>
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#include <SelectMgr_SelectingVolumeManager.hxx>
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#include <Select3D_SensitiveSet.hxx>
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class Poly_Triangulation;
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//! A framework to define selection of a sensitive entity made of a set of triangles.
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class Select3D_SensitiveTriangulation : public Select3D_SensitiveSet
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{
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DEFINE_STANDARD_RTTIEXT(Select3D_SensitiveTriangulation, Select3D_SensitiveSet)
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public:
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//! Constructs a sensitive triangulation object defined by
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//! the owner theOwnerId, the triangulation theTrg,
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//! the location theInitLoc, and the flag theIsInterior.
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Standard_EXPORT Select3D_SensitiveTriangulation (const Handle(SelectMgr_EntityOwner)& theOwnerId,
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const Handle(Poly_Triangulation)& theTrg,
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const TopLoc_Location& theInitLoc,
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const Standard_Boolean theIsInterior = Standard_True);
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//! Constructs a sensitive triangulation object defined by
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//! the owner theOwnerId, the triangulation theTrg,
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//! the location theInitLoc, the array of free edges
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//! theFreeEdges, the center of gravity theCOG, and the flag theIsInterior.
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//! As free edges and the center of gravity do not have
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//! to be computed later, this syntax reduces computation time.
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Standard_EXPORT Select3D_SensitiveTriangulation (const Handle(SelectMgr_EntityOwner)& theOwnerId,
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const Handle(Poly_Triangulation)& theTrg,
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const TopLoc_Location& theInitLoc,
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const Handle(TColStd_HArray1OfInteger)& theFreeEdges,
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const gp_Pnt& theCOG,
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const Standard_Boolean theIsInterior);
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public:
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//! Get last detected triangle.
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//! @param theTriangle [out] triangle node indexes
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//! @return TRUE if defined
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Standard_EXPORT bool LastDetectedTriangle (Poly_Triangle& theTriangle) const;
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//! Get last detected triangle.
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//! @param theTriangle [out] triangle node indexes
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//! @param theTriNodes [out] triangle nodes (with pre-applied transformation)
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//! @return TRUE if defined
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Standard_EXPORT bool LastDetectedTriangle (Poly_Triangle& theTriangle,
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gp_Pnt theTriNodes[3]) const;
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//! Return index of last detected triangle within [1..NbTris] range, or -1 if undefined.
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Standard_Integer LastDetectedTriangleIndex() const
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{
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return (myDetectedIdx != -1 && mySensType == Select3D_TOS_INTERIOR && !myBVHPrimIndexes.IsNull())
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? myBVHPrimIndexes->Value (myDetectedIdx) + 1
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: -1;
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}
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public:
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//! Returns the amount of nodes in triangulation
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Standard_EXPORT virtual Standard_Integer NbSubElements() const Standard_OVERRIDE;
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Standard_EXPORT Handle(Select3D_SensitiveEntity) GetConnected() Standard_OVERRIDE;
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const Handle(Poly_Triangulation)& Triangulation() const { return myTriangul; }
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//! Returns the length of array of triangles or edges
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Standard_EXPORT virtual Standard_Integer Size() const Standard_OVERRIDE;
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//! Returns bounding box of triangle/edge with index theIdx
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Standard_EXPORT virtual Select3D_BndBox3d Box (const Standard_Integer theIdx) const Standard_OVERRIDE;
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//! Returns geometry center of triangle/edge with index theIdx
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//! in array along the given axis theAxis
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Standard_EXPORT virtual Standard_Real Center (const Standard_Integer theIdx,
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const Standard_Integer theAxis) const Standard_OVERRIDE;
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//! Swaps items with indexes theIdx1 and theIdx2 in array
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Standard_EXPORT virtual void Swap (const Standard_Integer theIdx1,
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const Standard_Integer theIdx2) Standard_OVERRIDE;
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//! Returns bounding box of the triangulation. If location
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//! transformation is set, it will be applied
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Standard_EXPORT virtual Select3D_BndBox3d BoundingBox() Standard_OVERRIDE;
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//! Returns center of triangulation. If location transformation
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//! is set, it will be applied
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Standard_EXPORT virtual gp_Pnt CenterOfGeometry() const Standard_OVERRIDE;
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//! Returns true if the shape corresponding to the entity has init location
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Standard_EXPORT virtual Standard_Boolean HasInitLocation() const Standard_OVERRIDE;
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//! Returns inversed location transformation matrix if the shape corresponding
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//! to this entity has init location set. Otherwise, returns identity matrix.
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Standard_EXPORT virtual gp_GTrsf InvInitLocation() const Standard_OVERRIDE;
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const TopLoc_Location& GetInitLocation() const { return myInitLocation; }
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//! Dumps the content of me into the stream
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Standard_EXPORT virtual void DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth = -1) const Standard_OVERRIDE;
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protected:
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//! Inner function for transformation application to bounding
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//! box of the triangulation
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Select3D_BndBox3d applyTransformation();
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private:
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//! Checks whether the element with index theIdx overlaps the current selecting volume
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Standard_EXPORT virtual Standard_Boolean overlapsElement (SelectBasics_PickResult& thePickResult,
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SelectBasics_SelectingVolumeManager& theMgr,
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Standard_Integer theElemIdx,
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Standard_Boolean theIsFullInside) Standard_OVERRIDE;
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//! Calculates distance from the 3d projection of used-picked screen point to center of the geometry
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Standard_EXPORT virtual Standard_Real distanceToCOG (SelectBasics_SelectingVolumeManager& theMgr) Standard_OVERRIDE;
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//! Checks whether the entity with index theIdx is inside the current selecting volume
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Standard_EXPORT virtual Standard_Boolean elementIsInside (SelectBasics_SelectingVolumeManager& theMgr,
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Standard_Integer theElemIdx,
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Standard_Boolean theIsFullInside) Standard_OVERRIDE;
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protected:
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Handle(Poly_Triangulation) myTriangul;
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TopLoc_Location myInitLocation;
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gp_Pnt myCDG3D; //!< Center of the whole triangulation
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Handle(TColStd_HArray1OfInteger) myFreeEdges;
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Standard_Boolean mySensType; //!< Type of sensitivity: boundary or interior
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Standard_Integer myPrimitivesNb; //!< Amount of free edges or triangles depending on sensitivity type
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Handle(TColStd_HArray1OfInteger) myBVHPrimIndexes; //!< Indexes of edges or triangles for BVH build
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mutable Select3D_BndBox3d myBndBox; //!< Bounding box of the whole triangulation
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gp_GTrsf myInvInitLocation;
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};
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DEFINE_STANDARD_HANDLE(Select3D_SensitiveTriangulation, Select3D_SensitiveSet)
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#endif // _Select3D_SensitiveTriangulation_Header
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