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0024428: Implementation of LGPL license
[occt.git] / src / AIS / AIS_EqualRadiusRelation.cxx
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1// Created on: 1998-01-20
2// Created by: Julia GERASIMOVA
3// Copyright (c) 1998-1999 Matra Datavision
4// Copyright (c) 1999-2014 OPEN CASCADE SAS
5//
6// This file is part of Open CASCADE Technology software library.
7//
8// This library is free software; you can redistribute it and / or modify it
9// under the terms of the GNU Lesser General Public 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.
13//
14// Alternatively, this file may be used under the terms of Open CASCADE
15// commercial license or contractual agreement.
16
17#define BUC60915 //GG 05/06/01 Enable to compute the requested arrow size
18// if any in all dimensions.
19
20#include <Standard_NotImplemented.hxx>
21
22#include <AIS_EqualRadiusRelation.ixx>
23
24#include <AIS.hxx>
25#include <DsgPrs_EqualRadiusPresentation.hxx>
26#include <BRepAdaptor_Curve.hxx>
27#include <TopoDS.hxx>
28#include <gp_Circ.hxx>
29#include <Geom_Circle.hxx>
30#include <ElCLib.hxx>
31#include <SelectMgr_EntityOwner.hxx>
32#include <Select3D_SensitiveSegment.hxx>
33#include <Select3D_SensitiveBox.hxx>
34#include <Precision.hxx>
35#include <GeomAPI_ProjectPointOnSurf.hxx>
36#include <Prs3d_DimensionAspect.hxx>
37#include <Prs3d_ArrowAspect.hxx>
38#include <AIS_Drawer.hxx>
39
40//=======================================================================
41//function : AIS_EqualRadiusRelation
42//purpose :
43//=======================================================================
44
45AIS_EqualRadiusRelation::AIS_EqualRadiusRelation( const TopoDS_Edge& aFirstEdge,
46 const TopoDS_Edge& aSecondEdge,
47 const Handle( Geom_Plane )& aPlane )
48 :AIS_Relation()
49{
50 myFShape = aFirstEdge;
51 mySShape = aSecondEdge;
52 myPlane = aPlane;
53}
54
55//=======================================================================
56//function : Compute
57//purpose :
58//=======================================================================
59
60void AIS_EqualRadiusRelation::Compute( const Handle( PrsMgr_PresentationManager3d )&,
61 const Handle( Prs3d_Presentation )& aPresentation,
62 const Standard_Integer )
63{
64 aPresentation->Clear();
65
66 BRepAdaptor_Curve FirstCurve( TopoDS::Edge( myFShape ) ), SecondCurve( TopoDS::Edge( mySShape ) );
67
68 Standard_Real FirstPar1 = FirstCurve.FirstParameter(), LastPar1 = FirstCurve.LastParameter(),
69 FirstPar2 = SecondCurve.FirstParameter(), LastPar2 = SecondCurve.LastParameter();
70
71 Handle( Geom_Curve ) FirstProjCurve = FirstCurve.Curve().Curve(),
72 SecondProjCurve = SecondCurve.Curve().Curve();
73 gp_Pnt FirstPoint1, LastPoint1, FirstPoint2, LastPoint2;
74 Standard_Boolean isFirstOnPlane, isSecondOnPlane;
75
76 AIS::ComputeGeomCurve( FirstProjCurve, FirstPar1, LastPar1, FirstPoint1, LastPoint1, myPlane, isFirstOnPlane );
77 AIS::ComputeGeomCurve( SecondProjCurve, FirstPar2, LastPar2, FirstPoint2, LastPoint2, myPlane, isSecondOnPlane );
78
79 if (!isFirstOnPlane)
80 ComputeProjEdgePresentation( aPresentation, TopoDS::Edge( myFShape ), FirstProjCurve, FirstPoint1, LastPoint1 );
81 if (! isSecondOnPlane)
82 ComputeProjEdgePresentation( aPresentation, TopoDS::Edge( mySShape ), SecondProjCurve, FirstPoint2, LastPoint2 );
83
84 gp_Circ FirstCirc = (Handle( Geom_Circle )::DownCast( FirstProjCurve ))->Circ();
85 gp_Circ SecondCirc = (Handle( Geom_Circle )::DownCast( SecondProjCurve ))->Circ();
86
87 myFirstCenter = FirstCirc.Location();
88 mySecondCenter = SecondCirc.Location();
89
90 //ota -- begin --
91 if (myAutomaticPosition)
92 {
93 myFirstPoint = ElCLib::Value( (FirstPar1 + LastPar1)*0.5, FirstCirc );
94 mySecondPoint = ElCLib::Value( (FirstPar2 + LastPar2)*0.5, SecondCirc );
95 }
96 else {
97 Standard_Real aPar = ElCLib::Parameter(FirstCirc, myFirstPoint);
98 if (IntegerPart(0.5*LastPar1/M_PI) != 0 && aPar < FirstPar1 )
99 aPar +=2*M_PI*IntegerPart(0.5*LastPar1/M_PI);
100 Standard_Real aRadius = FirstCirc.Radius();
101
102 if (Abs(myFirstPoint.Distance(myFirstCenter) - aRadius) >= Precision::Confusion())
103 myFirstPoint = ElCLib::Value(aPar, FirstCirc);
104 if ( FirstPoint1.Distance(LastPoint1) > Precision::Confusion()){
105 //check where is myFirstPoint
106 if (aPar > LastPar1 || aPar < FirstPar1)
107 {
108 //myFirstPoint is out of Arc of FirstCircle
109 if (FirstPoint1.Distance(myFirstPoint)< LastPoint1.Distance(myFirstPoint))
110 myFirstPoint = FirstPoint1;
111 else
112 myFirstPoint = LastPoint1;
113 }
114 }
115
116
117 aPar = ElCLib::Parameter(SecondCirc, mySecondPoint);
118 if (IntegerPart(0.5*LastPar2/M_PI) != 0 && aPar < FirstPar2 )
119 aPar +=2*M_PI*IntegerPart(0.5*LastPar2/M_PI);
120
121 aRadius = SecondCirc.Radius();
122 if (Abs(mySecondPoint.Distance(mySecondCenter) - aRadius) >= Precision::Confusion())
123 mySecondPoint = ElCLib::Value(aPar, SecondCirc);
124 if (FirstPoint2.Distance(LastPoint2) > Precision::Confusion()){
125 if (aPar > LastPar2 || aPar < FirstPar2)
126 { //mySecondPoint is out of Arc of mySecondCircle
127 if (FirstPoint2.Distance(mySecondPoint)< LastPoint2.Distance(mySecondPoint))
128 mySecondPoint = FirstPoint2;
129 else
130 mySecondPoint = LastPoint2;
131 }
132 }
133 }
134#ifdef BUC60915
135 if( !myArrowSizeIsDefined )
136#endif
137 myArrowSize = (Min(myFirstCenter.Distance(myFirstPoint),
138 mySecondCenter.Distance(mySecondPoint)))*0.05;
139
140 Handle(Prs3d_DimensionAspect) la = myDrawer->DimensionAspect();
141 Handle(Prs3d_ArrowAspect) arr = la->ArrowAspect();
142 arr->SetLength(myArrowSize);
143
144 //ota -- end --
145
146 DsgPrs_EqualRadiusPresentation::Add(aPresentation, myDrawer,
147 myFirstCenter, mySecondCenter, myFirstPoint, mySecondPoint, myPlane );
148}
149
150//=======================================================================
151//function : Compute
152//purpose : to avoid warning at compilation (SUN)
153//=======================================================================
154
155void AIS_EqualRadiusRelation::Compute( const Handle( Prs3d_Projector )& /*aProjector*/,
156 const Handle( Prs3d_Presentation )& /*aPresentation*/)
157{
158// Standard_NotImplemented::Raise("AIS_EqualRadiusRelation::Compute( const Handle( Prs3d_Projector )&,const Handle( Prs3d_Presentation )& )");
159// PrsMgr_PresentableObject::Compute( aProjector , aPresentation ) ;
160}
161
162//=======================================================================
163//function : Compute
164//purpose :
165//=======================================================================
166
167void AIS_EqualRadiusRelation::Compute(const Handle_Prs3d_Projector& aProjector,
168 const Handle_Geom_Transformation& aTransformation,
169 const Handle_Prs3d_Presentation& aPresentation)
170{
171// Standard_NotImplemented::Raise("AIS_EqualRadiusRelation::Compute(const Handle_Prs3d_Projector&, const Handle_Geom_Transformation&, const Handle_Prs3d_Presentation&)");
172 PrsMgr_PresentableObject::Compute( aProjector , aTransformation , aPresentation ) ;
173}
174
175//=======================================================================
176//function : ComputeSelection
177//purpose :
178//=======================================================================
179
180void AIS_EqualRadiusRelation::ComputeSelection( const Handle( SelectMgr_Selection )& aSelection,
181 const Standard_Integer )
182{
183 Handle( SelectMgr_EntityOwner ) own = new SelectMgr_EntityOwner( this, 7 );
184 Handle( Select3D_SensitiveSegment ) seg;
185
186 seg = new Select3D_SensitiveSegment( own, myFirstCenter, myFirstPoint );
187 aSelection->Add( seg );
188
189 if(!myAutomaticPosition)
190 ComputeRadiusPosition();
191
192 seg = new Select3D_SensitiveSegment( own, mySecondCenter, mySecondPoint );
193 aSelection->Add( seg );
194
195 seg = new Select3D_SensitiveSegment( own, myFirstCenter, mySecondCenter );
196 aSelection->Add( seg );
197
198
199 // Two small lines
200 gp_Pnt Middle( (myFirstCenter.XYZ() + mySecondCenter.XYZ())*0.5 );
201
202 Standard_Real SmallDist = .001;
203 //Should be changed as the domain of small lines could be changed.
204 Handle( Select3D_SensitiveBox ) box = new Select3D_SensitiveBox(own,
205 Middle.X() - SmallDist,
206 Middle.Y() - SmallDist,
207 Middle.Z() - SmallDist,
208 Middle.X() + SmallDist,
209 Middle.Y() + SmallDist,
210 Middle.Z() + SmallDist );
211 aSelection->Add(box);
212}
213
214//=================================================================
215//function : ComputeRadiusPosition
216//purpose :
217//=================================================================
218void AIS_EqualRadiusRelation::ComputeRadiusPosition()
219{
220 if (myAutomaticPosition ||
221 myFirstCenter.Distance(myPosition) < Precision::Confusion() ||
222 mySecondCenter.Distance(myPosition) < Precision::Confusion())
223 return;
224
225 gp_Pnt aPosition;
226
227 //project myPosition to the plane of constraint
228 GeomAPI_ProjectPointOnSurf aProj(myPosition, myPlane);
229 aPosition = aProj.NearestPoint();
230
231 Standard_Real aDist1 = myFirstPoint.Distance(aPosition);
232 Standard_Real aDist2 = mySecondPoint.Distance(aPosition);
233
234 if(aDist1<aDist2)
235 {
236 Standard_Real Rad1 = myFirstPoint.Distance(myFirstCenter);
237 const gp_Dir aNewDir1(aPosition.XYZ() - myFirstCenter.XYZ());
238 const gp_Vec aTVec (aNewDir1.XYZ()*Rad1);
239 myFirstPoint = myFirstCenter.Translated(aTVec);
240 }
241 else {
242 Standard_Real Rad2 = mySecondPoint.Distance(mySecondCenter);
243 const gp_Dir aNewDir2(aPosition.XYZ() - mySecondCenter.XYZ());
244 gp_Vec aTVec (aNewDir2.XYZ()*Rad2);
245 mySecondPoint = mySecondCenter.Translated(aTVec);
246 }
247
248}
249
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