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1 | // Created on: 1995-01-25 |
2 | // Created by: Mister rmi |
3 | // Copyright (c) 1995-1999 Matra Datavision |
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4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | // |
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6 | // This file is part of Open CASCADE Technology software library. |
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7 | // |
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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 |
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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. |
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13 | // |
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14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
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16 | |
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17 | #include <Select3D_SensitiveSegment.hxx> |
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18 | #include <gp_Vec.hxx> |
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19 | #include <TopLoc_Location.hxx> |
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20 | #include <Precision.hxx> |
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21 | |
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22 | |
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23 | IMPLEMENT_STANDARD_RTTIEXT(Select3D_SensitiveSegment,Select3D_SensitiveEntity) |
24 | |
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25 | //===================================================== |
26 | // Function : Create |
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27 | // Purpose : Constructor |
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28 | //===================================================== |
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29 | Select3D_SensitiveSegment::Select3D_SensitiveSegment (const Handle(SelectBasics_EntityOwner)& theOwnerId, |
30 | const gp_Pnt& theFirstPnt, |
31 | const gp_Pnt& theLastPnt) |
32 | : Select3D_SensitiveEntity (theOwnerId) |
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33 | { |
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34 | myStart = theFirstPnt; |
35 | myEnd = theLastPnt; |
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36 | } |
37 | |
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38 | // ======================================================================= |
39 | // function : Matches |
40 | // purpose : Checks whether the segment overlaps current selecting volume |
41 | // ======================================================================= |
42 | Standard_Boolean Select3D_SensitiveSegment::Matches (SelectBasics_SelectingVolumeManager& theMgr, |
43 | SelectBasics_PickResult& thePickResult) |
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44 | { |
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45 | if (!theMgr.IsOverlapAllowed()) // check for inclusion |
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46 | { |
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47 | return theMgr.Overlaps (myStart, thePickResult) && theMgr.Overlaps (myEnd, thePickResult); |
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48 | } |
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49 | |
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50 | if (!theMgr.Overlaps (myStart, myEnd, thePickResult)) // check for overlap |
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51 | { |
52 | return Standard_False; |
53 | } |
54 | |
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55 | thePickResult.SetDistToGeomCenter (theMgr.DistToGeometryCenter(CenterOfGeometry())); |
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56 | return Standard_True; |
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57 | } |
58 | |
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59 | //======================================================================= |
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60 | //function : GetConnected |
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61 | //purpose : |
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62 | //======================================================================= |
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63 | Handle(Select3D_SensitiveEntity) Select3D_SensitiveSegment::GetConnected() |
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64 | { |
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65 | Handle(Select3D_SensitiveSegment) aNewEntity = |
66 | new Select3D_SensitiveSegment (myOwnerId, myStart, myEnd); |
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67 | |
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68 | return aNewEntity; |
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69 | } |
70 | |
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71 | //======================================================================= |
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72 | // function : CenterOfGeometry |
73 | // purpose : Returns center of the segment. If location transformation |
74 | // is set, it will be applied |
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75 | //======================================================================= |
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76 | gp_Pnt Select3D_SensitiveSegment::CenterOfGeometry() const |
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77 | { |
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78 | return (myStart.XYZ() + myEnd.XYZ()) * 0.5; |
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79 | } |
80 | |
81 | //======================================================================= |
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82 | // function : BoundingBox |
83 | // purpose : Returns bounding box of the segment. If location |
84 | // transformation is set, it will be applied |
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85 | //======================================================================= |
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86 | Select3D_BndBox3d Select3D_SensitiveSegment::BoundingBox() |
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87 | { |
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88 | const SelectMgr_Vec3 aMinPnt (Min (myStart.X(), myEnd.X()), |
89 | Min (myStart.Y(), myEnd.Y()), |
90 | Min (myStart.Z(), myEnd.Z())); |
91 | const SelectMgr_Vec3 aMaxPnt (Max (myStart.X(), myEnd.X()), |
92 | Max (myStart.Y(), myEnd.Y()), |
93 | Max (myStart.Z(), myEnd.Z())); |
94 | return Select3D_BndBox3d (aMinPnt, aMaxPnt); |
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95 | } |
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96 | |
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97 | //======================================================================= |
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98 | // function : NbSubElements |
99 | // purpose : Returns the amount of points |
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100 | //======================================================================= |
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101 | Standard_Integer Select3D_SensitiveSegment::NbSubElements() |
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102 | { |
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103 | return 2; |
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104 | } |