1 // Created on: 1998-01-26
2 // Created by: Sergey ZARITCHNY
3 // Copyright (c) 1998-1999 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
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.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #include <DsgPrs_EllipseRadiusPresentation.ixx>
21 #include <gp_Elips.hxx>
23 #include <Graphic3d_Group.hxx>
24 #include <Graphic3d_ArrayOfSegments.hxx>
25 #include <Graphic3d_ArrayOfPolylines.hxx>
26 #include <Prs3d_DimensionAspect.hxx>
27 #include <Prs3d_Arrow.hxx>
28 #include <Prs3d_ArrowAspect.hxx>
29 #include <Prs3d_LineAspect.hxx>
30 #include <Prs3d_Text.hxx>
31 #include <TCollection_AsciiString.hxx>
32 #include <TCollection_ExtendedString.hxx>
34 #include <Graphic3d_Vertex.hxx>
35 #include <Graphic3d_AspectMarker3d.hxx>
36 #include <Graphic3d_AspectLine3d.hxx>
37 #include <Aspect_TypeOfLine.hxx>
38 #include <Aspect_TypeOfMarker.hxx>
39 #include <Aspect_AspectMarker.hxx>
40 #include <Quantity_Color.hxx>
42 #include <Precision.hxx>
44 #include <Geom_Ellipse.hxx>
45 #include <Geom_Line.hxx>
46 #include <Geom_TrimmedCurve.hxx>
47 #include <GeomAPI_ExtremaCurveCurve.hxx>
48 #include <Geom_OffsetCurve.hxx>
50 //=======================================================================
53 //=======================================================================
55 void DsgPrs_EllipseRadiusPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
56 const Handle(Prs3d_Drawer)& aDrawer,
57 const Standard_Real theval,
58 const TCollection_ExtendedString & aText,
59 const gp_Pnt & aPosition,
60 const gp_Pnt & anEndOfArrow,
61 const gp_Pnt & aCenter,
62 const Standard_Boolean IsMaxRadius,
63 const DsgPrs_ArrowSide ArrowPrs)
65 Handle(Prs3d_DimensionAspect) LA = aDrawer->DimensionAspect();
66 Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
68 const Standard_Real dist = aCenter.Distance( aPosition );
69 const Standard_Boolean inside = ( dist <= theval );
70 gp_Pnt EndPoint(inside? anEndOfArrow : aPosition);
72 Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(2);
73 aPrims->AddVertex(aCenter);
74 aPrims->AddVertex(EndPoint);
75 Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
78 TCollection_ExtendedString Text(IsMaxRadius? "a = " : "b = ");
80 Prs3d_Text::Draw(aPresentation, LA->TextAspect(), Text, aPosition );
83 gp_Dir arrdir( gp_Vec( aCenter, anEndOfArrow));
84 if (!inside) arrdir.Reverse();
86 DsgPrs::ComputeSymbol(aPresentation, LA, anEndOfArrow, anEndOfArrow, arrdir, arrdir, ArrowPrs );
89 //=======================================================================
92 //=======================================================================
94 void DsgPrs_EllipseRadiusPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
95 const Handle(Prs3d_Drawer)& aDrawer,
96 const Standard_Real theval,
97 const TCollection_ExtendedString & aText,
98 const gp_Elips & anEllipse,
99 const gp_Pnt & aPosition,
100 const gp_Pnt & anEndOfArrow,
101 const gp_Pnt & aCenter,
102 const Standard_Real uFirst,
103 const Standard_Boolean IsInDomain,
104 const Standard_Boolean IsMaxRadius,
105 const DsgPrs_ArrowSide ArrowPrs)
107 Handle(Prs3d_DimensionAspect) LA = aDrawer->DimensionAspect();
108 Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
112 const Standard_Real uLast = ElCLib::Parameter ( anEllipse, anEndOfArrow );
113 const Standard_Real Alpha = DsgPrs::DistanceFromApex(anEllipse, anEndOfArrow, uFirst);//length of ellipse arc
114 gp_Vec Vapex(aCenter, ElCLib::Value( uLast, anEllipse )) ;
115 gp_Vec Vpnt(aCenter, ElCLib::Value( uFirst, anEllipse )) ;
116 gp_Dir dir(Vpnt ^ Vapex);
117 Standard_Real parFirst = anEllipse.Position().Direction().IsOpposite( dir, Precision::Angular())? uLast : uFirst;
118 const Standard_Integer NodeNumber = Max (4 , Standard_Integer (50. * Alpha / M_PI));
119 const Standard_Real delta = Alpha / ( NodeNumber - 1 );
121 Handle(Graphic3d_ArrayOfPolylines) aPrims = new Graphic3d_ArrayOfPolylines(NodeNumber);
122 for (Standard_Integer i = 0 ; i < NodeNumber; i++, parFirst += delta)
123 aPrims->AddVertex(ElCLib::Value( parFirst, anEllipse ));
124 Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
126 DsgPrs_EllipseRadiusPresentation::Add(aPresentation, aDrawer, theval, aText,
127 aPosition, anEndOfArrow, aCenter, IsMaxRadius, ArrowPrs);
131 //=======================================================================
133 //purpose : // for offset curve
134 //=======================================================================
136 void DsgPrs_EllipseRadiusPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
137 const Handle(Prs3d_Drawer)& aDrawer,
138 const Standard_Real theval,
139 const TCollection_ExtendedString & aText,
140 const Handle(Geom_OffsetCurve) & aCurve,
141 const gp_Pnt & aPosition,
142 const gp_Pnt & anEndOfArrow,
143 const gp_Pnt & aCenter,
144 const Standard_Real uFirst,
145 const Standard_Boolean IsInDomain,
146 const Standard_Boolean IsMaxRadius,
147 const DsgPrs_ArrowSide ArrowPrs)
149 Handle(Prs3d_DimensionAspect) LA = aDrawer->DimensionAspect();
150 Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
154 if(!aCurve->IsCN(1)) return ;
155 gp_Elips aBEllipse = Handle(Geom_Ellipse)::DownCast(aCurve->BasisCurve ())->Elips();
156 const Standard_Real Offset = aCurve->Offset();
157 aBEllipse.SetMajorRadius(aBEllipse.MajorRadius() + Offset);
158 aBEllipse.SetMinorRadius(aBEllipse.MinorRadius() + Offset);
159 const Standard_Real uLast = ElCLib::Parameter ( aBEllipse, anEndOfArrow );
160 const Standard_Real Alpha = DsgPrs::DistanceFromApex(aBEllipse, anEndOfArrow, uFirst);//length of ellipse arc
162 aCurve->D0(uFirst, p1);
163 gp_Vec Vapex(aCenter, anEndOfArrow) ;
164 gp_Vec Vpnt (aCenter, p1) ;
165 gp_Dir dir(Vpnt ^ Vapex);
166 Standard_Real parFirst = aCurve->Direction().IsOpposite( dir, Precision::Angular())? uLast : uFirst;
167 const Standard_Integer NodeNumber = Max (4 , Standard_Integer (50. * Alpha / M_PI));
168 const Standard_Real delta = Alpha / ( NodeNumber - 1 );
170 Handle(Graphic3d_ArrayOfPolylines) aPrims = new Graphic3d_ArrayOfPolylines(NodeNumber);
171 for (Standard_Integer i = 0 ; i < NodeNumber; i++, parFirst += delta)
173 aCurve->D0( parFirst, p1 );
174 aPrims->AddVertex(p1);
176 Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
178 DsgPrs_EllipseRadiusPresentation::Add(aPresentation, aDrawer, theval, aText,
179 aPosition, anEndOfArrow, aCenter, IsMaxRadius, ArrowPrs);