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_Type.hxx>
26 #include <Standard_Type.hxx>
28 #include <TopLoc_Location.hxx>
29 #include <gp_Trsf.hxx>
31 #include <TColStd_HArray1OfInteger.hxx>
32 #include <TColStd_HArray1OfInteger.hxx>
33 #include <Standard_Boolean.hxx>
34 #include <TColgp_HArray1OfPnt.hxx>
35 #include <Select3D_SensitiveEntity.hxx>
36 #include <SelectMgr_SelectingVolumeManager.hxx>
37 #include <Standard_OStream.hxx>
38 #include <Select3D_SensitiveSet.hxx>
39 #include <NCollection_Handle.hxx>
41 class Poly_Triangulation;
42 class SelectBasics_EntityOwner;
43 class TopLoc_Location;
45 class Select3D_SensitiveEntity;
47 //! A framework to define selection of a sensitive entity made of a set of triangles.
48 class Select3D_SensitiveTriangulation : public Select3D_SensitiveSet
53 //! Constructs a sensitive triangulation object defined by
54 //! the owner theOwnerId, the triangulation theTrg,
55 //! the location theInitLoc, and the flag theIsInterior.
56 Standard_EXPORT Select3D_SensitiveTriangulation (const Handle(SelectBasics_EntityOwner)& theOwnerId,
57 const Handle(Poly_Triangulation)& theTrg,
58 const TopLoc_Location& theInitLoc,
59 const Standard_Boolean theIsInterior = Standard_True);
61 //! Constructs a sensitive triangulation object defined by
62 //! the owner theOwnerId, the triangulation theTrg,
63 //! the location theInitLoc, the array of free edges
64 //! theFreeEdges, the center of gravity theCOG, and the flag theIsInterior.
65 //! As free edges and the center of gravity do not have
66 //! to be computed later, this syntax reduces computation time.
67 Standard_EXPORT Select3D_SensitiveTriangulation (const Handle(SelectBasics_EntityOwner)& theOwnerId,
68 const Handle(Poly_Triangulation)& theTrg,
69 const TopLoc_Location& theInitLoc,
70 const Handle(TColStd_HArray1OfInteger)& theFreeEdges,
72 const Standard_Boolean theIsInterior);
74 //! Returns the amount of nodes in triangulation
75 Standard_EXPORT virtual Standard_Integer NbSubElements() Standard_OVERRIDE;
77 Standard_EXPORT Handle(Select3D_SensitiveEntity) GetConnected() Standard_OVERRIDE;
79 const Handle(Poly_Triangulation)& Triangulation() const;
81 //! Returns the length of array of triangles or edges
82 Standard_EXPORT virtual Standard_Integer Size() const Standard_OVERRIDE;
84 //! Returns bounding box of triangle/edge with index theIdx
85 Standard_EXPORT virtual Select3D_BndBox3d Box (const Standard_Integer theIdx) const Standard_OVERRIDE;
87 //! Returns geometry center of triangle/edge with index theIdx
88 //! in array along the given axis theAxis
89 Standard_EXPORT virtual Standard_Real Center (const Standard_Integer theIdx,
90 const Standard_Integer theAxis) const Standard_OVERRIDE;
92 //! Swaps items with indexes theIdx1 and theIdx2 in array
93 Standard_EXPORT virtual void Swap (const Standard_Integer theIdx1,
94 const Standard_Integer theIdx2) Standard_OVERRIDE;
96 //! Returns bounding box of the triangulation. If location
97 //! transformation is set, it will be applied
98 Standard_EXPORT virtual Select3D_BndBox3d BoundingBox() Standard_OVERRIDE;
100 //! Returns center of triangulation. If location transformation
101 //! is set, it will be applied
102 Standard_EXPORT virtual gp_Pnt CenterOfGeometry() const Standard_OVERRIDE;
104 //! Returns true if the shape corresponding to the entity has init location
105 Standard_EXPORT virtual Standard_Boolean HasInitLocation() const Standard_OVERRIDE;
107 //! Returns inversed location transformation matrix if the shape corresponding
108 //! to this entity has init location set. Otherwise, returns identity matrix.
109 Standard_EXPORT virtual gp_GTrsf InvInitLocation() const Standard_OVERRIDE;
111 inline const TopLoc_Location& GetInitLocation() const;
114 DEFINE_STANDARD_RTTIEXT(Select3D_SensitiveTriangulation,Select3D_SensitiveSet)
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;
139 Handle(Poly_Triangulation) myTriangul;
140 TopLoc_Location myInitLocation;
141 gp_Pnt myCDG3D; //!< Center of the whole triangulation
142 Handle(TColStd_HArray1OfInteger) myFreeEdges;
143 Standard_Boolean mySensType; //!< Type of sensitivity: boundary or interior
144 Standard_Integer myPrimitivesNb; //!< Amount of free edges or triangles depending on sensitivity type
145 Handle(TColStd_HArray1OfInteger) myBVHPrimIndexes; //!< Indexes of edges or triangles for BVH build
146 mutable Select3D_BndBox3d myBndBox; //!< Bounding box of the whole triangulation
147 gp_GTrsf myInvInitLocation;
150 DEFINE_STANDARD_HANDLE(Select3D_SensitiveTriangulation, Select3D_SensitiveSet)
152 #include <Select3D_SensitiveTriangulation.lxx>
155 #endif // _Select3D_SensitiveTriangulation_Header