1 // Created on: 1998-01-26
2 // Created by: Sergey ZARITCHNY
3 // Copyright (c) 1998-1999 Matra Datavision
4 // Copyright (c) 1999-2012 OPEN CASCADE SAS
6 // The content of this file is subject to the Open CASCADE Technology Public
7 // License Version 6.5 (the "License"). You may not use the content of this file
8 // except in compliance with the License. Please obtain a copy of the License
9 // at http://www.opencascade.org and read it completely before using this file.
11 // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
12 // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
14 // The Original Code and all software distributed under the License is
15 // distributed on an "AS IS" basis, without warranty of any kind, and the
16 // Initial Developer hereby disclaims all such warranties, including without
17 // limitation, any warranties of merchantability, fitness for a particular
18 // purpose or non-infringement. Please see the License for the specific terms
19 // and conditions governing the rights and limitations under the License.
21 #include <DsgPrs_EllipseRadiusPresentation.ixx>
25 #include <gp_Elips.hxx>
27 #include <Graphic3d_Group.hxx>
28 #include <Graphic3d_ArrayOfSegments.hxx>
29 #include <Graphic3d_ArrayOfPolylines.hxx>
30 #include <Prs3d_LengthAspect.hxx>
31 #include <Prs3d_Arrow.hxx>
32 #include <Prs3d_ArrowAspect.hxx>
33 #include <Prs3d_LineAspect.hxx>
34 #include <Prs3d_Text.hxx>
35 #include <TCollection_AsciiString.hxx>
36 #include <TCollection_ExtendedString.hxx>
38 #include <Graphic3d_Vertex.hxx>
39 #include <Graphic3d_AspectMarker3d.hxx>
40 #include <Graphic3d_AspectLine3d.hxx>
41 #include <Aspect_TypeOfLine.hxx>
42 #include <Aspect_TypeOfMarker.hxx>
43 #include <Aspect_AspectMarker.hxx>
44 #include <Quantity_Color.hxx>
46 #include <Precision.hxx>
48 #include <Geom_Ellipse.hxx>
49 #include <Geom_Line.hxx>
50 #include <Geom_TrimmedCurve.hxx>
51 #include <GeomAPI_ExtremaCurveCurve.hxx>
52 #include <Geom_OffsetCurve.hxx>
54 //=======================================================================
57 //=======================================================================
59 void DsgPrs_EllipseRadiusPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
60 const Handle(Prs3d_Drawer)& aDrawer,
61 const Standard_Real theval,
62 const TCollection_ExtendedString & aText,
63 const gp_Pnt & aPosition,
64 const gp_Pnt & anEndOfArrow,
65 const gp_Pnt & aCenter,
66 const Standard_Boolean IsMaxRadius,
67 const DsgPrs_ArrowSide ArrowPrs)
69 Handle(Prs3d_LengthAspect) LA = aDrawer->LengthAspect();
70 Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
72 const Standard_Real dist = aCenter.Distance( aPosition );
73 const Standard_Boolean inside = ( dist <= theval );
74 gp_Pnt EndPoint(inside? anEndOfArrow : aPosition);
76 Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(2);
77 aPrims->AddVertex(aCenter);
78 aPrims->AddVertex(EndPoint);
79 Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
82 TCollection_ExtendedString Text(IsMaxRadius? "a = " : "b = ");
84 Prs3d_Text::Draw(aPresentation, LA->TextAspect(), Text, aPosition );
87 gp_Dir arrdir( gp_Vec( aCenter, anEndOfArrow));
88 if (!inside) arrdir.Reverse();
90 DsgPrs::ComputeSymbol(aPresentation, LA, anEndOfArrow, anEndOfArrow, arrdir, arrdir, ArrowPrs );
93 //=======================================================================
96 //=======================================================================
98 void DsgPrs_EllipseRadiusPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
99 const Handle(Prs3d_Drawer)& aDrawer,
100 const Standard_Real theval,
101 const TCollection_ExtendedString & aText,
102 const gp_Elips & anEllipse,
103 const gp_Pnt & aPosition,
104 const gp_Pnt & anEndOfArrow,
105 const gp_Pnt & aCenter,
106 const Standard_Real uFirst,
107 const Standard_Boolean IsInDomain,
108 const Standard_Boolean IsMaxRadius,
109 const DsgPrs_ArrowSide ArrowPrs)
111 Handle(Prs3d_LengthAspect) LA = aDrawer->LengthAspect();
112 Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
116 const Standard_Real uLast = ElCLib::Parameter ( anEllipse, anEndOfArrow );
117 const Standard_Real Alpha = DsgPrs::DistanceFromApex(anEllipse, anEndOfArrow, uFirst);//length of ellipse arc
118 gp_Vec Vapex(aCenter, ElCLib::Value( uLast, anEllipse )) ;
119 gp_Vec Vpnt(aCenter, ElCLib::Value( uFirst, anEllipse )) ;
120 gp_Dir dir(Vpnt ^ Vapex);
121 Standard_Real parFirst = anEllipse.Position().Direction().IsOpposite( dir, Precision::Angular())? uLast : uFirst;
122 const Standard_Integer NodeNumber = Max (4 , Standard_Integer (50. * Alpha / M_PI));
123 const Standard_Real delta = Alpha / ( NodeNumber - 1 );
125 Handle(Graphic3d_ArrayOfPolylines) aPrims = new Graphic3d_ArrayOfPolylines(NodeNumber);
126 for (Standard_Integer i = 0 ; i < NodeNumber; i++, parFirst += delta)
127 aPrims->AddVertex(ElCLib::Value( parFirst, anEllipse ));
128 Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
130 DsgPrs_EllipseRadiusPresentation::Add(aPresentation, aDrawer, theval, aText,
131 aPosition, anEndOfArrow, aCenter, IsMaxRadius, ArrowPrs);
135 //=======================================================================
137 //purpose : // for offset curve
138 //=======================================================================
140 void DsgPrs_EllipseRadiusPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
141 const Handle(Prs3d_Drawer)& aDrawer,
142 const Standard_Real theval,
143 const TCollection_ExtendedString & aText,
144 const Handle(Geom_OffsetCurve) & aCurve,
145 const gp_Pnt & aPosition,
146 const gp_Pnt & anEndOfArrow,
147 const gp_Pnt & aCenter,
148 const Standard_Real uFirst,
149 const Standard_Boolean IsInDomain,
150 const Standard_Boolean IsMaxRadius,
151 const DsgPrs_ArrowSide ArrowPrs)
153 Handle(Prs3d_LengthAspect) LA = aDrawer->LengthAspect();
154 Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
158 if(!aCurve->IsCN(1)) return ;
159 gp_Elips aBEllipse = Handle(Geom_Ellipse)::DownCast(aCurve->BasisCurve ())->Elips();
160 const Standard_Real Offset = aCurve->Offset();
161 aBEllipse.SetMajorRadius(aBEllipse.MajorRadius() + Offset);
162 aBEllipse.SetMinorRadius(aBEllipse.MinorRadius() + Offset);
163 const Standard_Real uLast = ElCLib::Parameter ( aBEllipse, anEndOfArrow );
164 const Standard_Real Alpha = DsgPrs::DistanceFromApex(aBEllipse, anEndOfArrow, uFirst);//length of ellipse arc
166 aCurve->D0(uFirst, p1);
167 gp_Vec Vapex(aCenter, anEndOfArrow) ;
168 gp_Vec Vpnt (aCenter, p1) ;
169 gp_Dir dir(Vpnt ^ Vapex);
170 Standard_Real parFirst = aCurve->Direction().IsOpposite( dir, Precision::Angular())? uLast : uFirst;
171 const Standard_Integer NodeNumber = Max (4 , Standard_Integer (50. * Alpha / M_PI));
172 const Standard_Real delta = Alpha / ( NodeNumber - 1 );
174 Handle(Graphic3d_ArrayOfPolylines) aPrims = new Graphic3d_ArrayOfPolylines(NodeNumber);
175 for (Standard_Integer i = 0 ; i < NodeNumber; i++, parFirst += delta)
177 aCurve->D0( parFirst, p1 );
178 aPrims->AddVertex(p1);
180 Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
182 DsgPrs_EllipseRadiusPresentation::Add(aPresentation, aDrawer, theval, aText,
183 aPosition, anEndOfArrow, aCenter, IsMaxRadius, ArrowPrs);