1 // Created on: 1997-05-15
2 // Created by: Robert COUBLANC
3 // Copyright (c) 1997-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 //Modified Thur Apr 09 98 by rob : No more computation of free edges.
18 // fix bug on Compute Depth (don't forget
21 #ifndef _Select3D_SensitiveTriangulation_Header
22 #define _Select3D_SensitiveTriangulation_Header
24 #include <Standard.hxx>
25 #include <Standard_DefineHandle.hxx>
26 #include <Standard_Type.hxx>
28 #include <Handle_Poly_Triangulation.hxx>
29 #include <TopLoc_Location.hxx>
30 #include <gp_Trsf.hxx>
32 #include <TColStd_HArray1OfInteger.hxx>
33 #include <Handle_TColStd_HArray1OfInteger.hxx>
34 #include <Standard_Boolean.hxx>
35 #include <TColgp_HArray1OfPnt.hxx>
36 #include <Select3D_SensitiveEntity.hxx>
37 #include <Handle_SelectBasics_EntityOwner.hxx>
38 #include <SelectMgr_SelectingVolumeManager.hxx>
39 #include <Standard_OStream.hxx>
40 #include <Select3D_SensitiveSet.hxx>
41 #include <NCollection_Handle.hxx>
43 class Poly_Triangulation;
44 class TColStd_HArray1OfInteger;
45 class SelectBasics_EntityOwner;
46 class TopLoc_Location;
48 class Select3D_SensitiveEntity;
49 class Handle(Select3D_SensitiveEntity);
50 class TColgp_Array1OfPnt2d;
52 //! A framework to define selection of a sensitive entity made of a set of triangles.
53 class Select3D_SensitiveTriangulation : public Select3D_SensitiveSet
58 //! Constructs a sensitive triangulation object defined by
59 //! the owner theOwnerId, the triangulation theTrg,
60 //! the location theInitLoc, and the flag theIsInterior.
61 Standard_EXPORT Select3D_SensitiveTriangulation (const Handle(SelectBasics_EntityOwner)& theOwnerId,
62 const Handle(Poly_Triangulation)& theTrg,
63 const TopLoc_Location& theInitLoc,
64 const Standard_Boolean theIsInterior = Standard_True);
66 //! Constructs a sensitive triangulation object defined by
67 //! the owner theOwnerId, the triangulation theTrg,
68 //! the location theInitLoc, the array of free edges
69 //! theFreeEdges, the center of gravity theCOG, and the flag theIsInterior.
70 //! As free edges and the center of gravity do not have
71 //! to be computed later, this syntax reduces computation time.
72 Standard_EXPORT Select3D_SensitiveTriangulation (const Handle(SelectBasics_EntityOwner)& theOwnerId,
73 const Handle(Poly_Triangulation)& theTrg,
74 const TopLoc_Location& theInitLoc,
75 const Handle(TColStd_HArray1OfInteger)& theFreeEdges,
77 const Standard_Boolean theIsInterior);
79 //! Returns the amount of nodes in triangulation
80 Standard_EXPORT virtual Standard_Integer NbSubElements() Standard_OVERRIDE;
82 Standard_EXPORT Handle_Select3D_SensitiveEntity GetConnected() Standard_OVERRIDE;
84 const Handle_Poly_Triangulation& Triangulation() const;
86 Standard_Boolean HasInitLocation() const;
88 const TopLoc_Location& GetInitLocation() const;
90 //! Returns the length of array of triangles or edges
91 Standard_EXPORT virtual Standard_Integer Size() const Standard_OVERRIDE;
93 //! Returns bounding box of triangle/edge with index theIdx
94 Standard_EXPORT virtual Select3D_BndBox3d Box (const Standard_Integer theIdx) const Standard_OVERRIDE;
96 //! Returns geometry center of triangle/edge with index theIdx
97 //! in array along the given axis theAxis
98 Standard_EXPORT virtual Standard_Real Center (const Standard_Integer theIdx,
99 const Standard_Integer theAxis) const Standard_OVERRIDE;
101 //! Swaps items with indexes theIdx1 and theIdx2 in array
102 Standard_EXPORT virtual void Swap (const Standard_Integer theIdx1,
103 const Standard_Integer theIdx2) Standard_OVERRIDE;
105 //! Returns bounding box of the triangulation. If location
106 //! transformation is set, it will be applied
107 Standard_EXPORT virtual Select3D_BndBox3d BoundingBox() Standard_OVERRIDE;
109 //! Returns center of triangulation. If location transformation
110 //! is set, it will be applied
111 Standard_EXPORT virtual gp_Pnt CenterOfGeometry() const Standard_OVERRIDE;
114 DEFINE_STANDARD_RTTI(Select3D_SensitiveTriangulation)
118 //! Inner function for transformation application to bounding
119 //! box of the triangulation
120 Select3D_BndBox3d applyTransformation();
125 //! Checks whether the element with index theIdx overlaps the current selecting volume
126 virtual Standard_Boolean overlapsElement (SelectBasics_SelectingVolumeManager& theMgr,
127 Standard_Integer theElemIdx,
128 Standard_Real& theMatchDepth) Standard_OVERRIDE;
130 //! Calculates distance from the 3d projection of used-picked screen point to center of the geometry
131 virtual Standard_Real distanceToCOG (SelectBasics_SelectingVolumeManager& theMgr) Standard_OVERRIDE;
133 //! Checks whether the entity with index theIdx is inside the current selecting volume
134 virtual Standard_Boolean elementIsInside (SelectBasics_SelectingVolumeManager& theMgr,
135 const Standard_Integer theElemIdx) Standard_OVERRIDE;
138 Standard_Real myBVHBuildTime;
142 Handle_Poly_Triangulation myTriangul;
143 TopLoc_Location myInitLocation;
144 gp_Pnt myCDG3D; //!< Center of the whole triangulation
145 Handle_TColStd_HArray1OfInteger myFreeEdges;
146 Standard_Boolean mySensType; //!< Type of sensitivity: boundary or interior
147 Standard_Integer myDetectedTr;
148 Standard_Integer myPrimitivesNb; //!< Amount of free edges or triangles depending on sensitivity type
149 Handle_TColStd_HArray1OfInteger myBVHPrimIndexes; //!< Indexes of edges or triangles for BVH build
150 mutable Select3D_BndBox3d myBndBox; //!< Bounding box of the whole triangulation
153 DEFINE_STANDARD_HANDLE(Select3D_SensitiveTriangulation, Select3D_SensitiveSet)
155 #include <Select3D_SensitiveTriangulation.lxx>
158 #endif // _Select3D_SensitiveTriangulation_Header