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1 | // Created on: 2014-08-21 |
2 | // Created by: Varvara POSKONINA |
3 | // Copyright (c) 2005-2014 OPEN CASCADE SAS |
4 | // |
5 | // This file is part of Open CASCADE Technology software library. |
6 | // |
7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published |
9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
11 | // distribution for complete text of the license and disclaimer of any warranty. |
12 | // |
13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
15 | |
16 | #ifndef _SelectBasics_SelectingVolumeManager_HeaderFile |
17 | #define _SelectBasics_SelectingVolumeManager_HeaderFile |
18 | |
19 | #include <BVH_Box.hxx> |
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20 | #include <gp_Pnt.hxx> |
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21 | #include <TColgp_HArray1OfPnt.hxx> |
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22 | #include <SelectBasics_PickResult.hxx> |
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23 | |
24 | class Bnd_Box; |
25 | class gp_Pnt; |
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26 | |
27 | //! This class provides an interface for selecting volume manager, |
28 | //! which is responsible for all overlap detection methods and |
29 | //! calculation of minimum depth, distance to center of geometry |
30 | //! and detected closest point on entity. |
31 | class SelectBasics_SelectingVolumeManager |
32 | { |
33 | public: |
34 | |
35 | //! Available selection types |
36 | enum SelectionType { Point, Box, Polyline, Unknown }; |
37 | |
38 | public: |
39 | |
40 | SelectBasics_SelectingVolumeManager() {}; |
41 | |
42 | virtual ~SelectBasics_SelectingVolumeManager() {}; |
43 | |
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44 | virtual Standard_Integer GetActiveSelectionType() const = 0; |
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45 | |
46 | //! Returns true if selecting volume is overlapped by box theBox |
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47 | virtual Standard_Boolean Overlaps (const NCollection_Vec3<Standard_Real>& theBoxMin, |
48 | const NCollection_Vec3<Standard_Real>& theBoxMax, |
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49 | SelectBasics_PickResult& thePickResult) const = 0; |
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50 | |
51 | //! Returns true if selecting volume is overlapped by axis-aligned bounding box with minimum |
52 | //! corner at point theMinPt and maximum at point theMaxPt |
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53 | virtual Standard_Boolean Overlaps (const NCollection_Vec3<Standard_Real>& theBoxMin, |
54 | const NCollection_Vec3<Standard_Real>& theBoxMax, |
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55 | Standard_Boolean* theInside = NULL) const = 0; |
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56 | |
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57 | //! Returns true if selecting volume is overlapped by point thePnt |
58 | virtual Standard_Boolean Overlaps (const gp_Pnt& thePnt, |
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59 | SelectBasics_PickResult& thePickResult) const = 0; |
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60 | |
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61 | //! Returns true if selecting volume is overlapped by point thePnt. |
62 | //! Does not perform depth calculation, so this method is defined as |
63 | //! helper function for inclusion test. |
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64 | virtual Standard_Boolean Overlaps (const gp_Pnt& thePnt) const = 0; |
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65 | |
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66 | //! Returns true if selecting volume is overlapped by planar convex polygon, which points |
67 | //! are stored in theArrayOfPts, taking into account sensitivity type theSensType |
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68 | virtual Standard_Boolean Overlaps (const Handle(TColgp_HArray1OfPnt)& theArrayOfPts, |
69 | Standard_Integer theSensType, |
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70 | SelectBasics_PickResult& thePickResult) const = 0; |
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71 | |
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72 | //! Returns true if selecting volume is overlapped by planar convex polygon, which points |
73 | //! are stored in theArrayOfPts, taking into account sensitivity type theSensType |
74 | virtual Standard_Boolean Overlaps (const TColgp_Array1OfPnt& theArrayOfPts, |
75 | Standard_Integer theSensType, |
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76 | SelectBasics_PickResult& thePickResult) const = 0; |
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77 | |
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78 | //! Returns true if selecting volume is overlapped by line segment with start point at thePt1 |
79 | //! and end point at thePt2 |
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80 | virtual Standard_Boolean Overlaps (const gp_Pnt& thePt1, |
81 | const gp_Pnt& thePt2, |
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82 | SelectBasics_PickResult& thePickResult) const = 0; |
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83 | |
84 | //! Returns true if selecting volume is overlapped by triangle with vertices thePt1, |
85 | //! thePt2 and thePt3, taking into account sensitivity type theSensType |
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86 | virtual Standard_Boolean Overlaps (const gp_Pnt& thePt1, |
87 | const gp_Pnt& thePt2, |
88 | const gp_Pnt& thePt3, |
89 | Standard_Integer theSensType, |
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90 | SelectBasics_PickResult& thePickResult) const = 0; |
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91 | |
92 | //! Calculates distance from 3d projection of user-defined selection point |
93 | //! to the given point theCOG |
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94 | virtual Standard_Real DistToGeometryCenter (const gp_Pnt& theCOG) const = 0; |
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95 | |
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96 | virtual gp_Pnt DetectedPoint (const Standard_Real theDepth) const = 0; |
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97 | |
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98 | virtual Standard_Boolean IsOverlapAllowed() const = 0; |
99 | |
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100 | //! Valid only for point and rectangular selection. |
101 | //! Returns projection of 2d mouse picked point or projection |
102 | //! of center of 2d rectangle (for point and rectangular selection |
103 | //! correspondingly) onto near view frustum plane |
104 | virtual gp_Pnt GetNearPickedPnt() const = 0; |
105 | |
106 | //! Valid only for point and rectangular selection. |
107 | //! Returns projection of 2d mouse picked point or projection |
108 | //! of center of 2d rectangle (for point and rectangular selection |
109 | //! correspondingly) onto far view frustum plane |
110 | virtual gp_Pnt GetFarPickedPnt() const = 0; |
111 | |
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112 | //! Stores plane equation coefficients (in the following form: |
113 | //! Ax + By + Cz + D = 0) to the given vector |
114 | virtual void GetPlanes (NCollection_Vector<NCollection_Vec4<Standard_Real> >& thePlaneEquations) const = 0; |
115 | |
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116 | protected: |
117 | SelectionType myActiveSelectionType; //!< Active selection type: point, box or polyline |
118 | }; |
119 | |
120 | #endif // _SelectBasics_SelectingVolumeManager_HeaderFile |