1 // Created on: 1996-03-18
2 // Created by: Flore Lantheaume
3 // Copyright (c) 1996-1999 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 under
9 // the terms of the GNU Lesser General Public License 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.
18 #include <DsgPrs_ConcentricPresentation.hxx>
20 #include <gp_Circ.hxx>
24 #include <Graphic3d_ArrayOfPolylines.hxx>
25 #include <Graphic3d_Group.hxx>
26 #include <Prs3d_DimensionAspect.hxx>
27 #include <Prs3d_LineAspect.hxx>
28 #include <Prs3d_Presentation.hxx>
29 #include <Prs3d_Root.hxx>
31 void DsgPrs_ConcentricPresentation::Add(
32 const Handle(Prs3d_Presentation)& aPresentation,
33 const Handle(Prs3d_Drawer)& aDrawer,
34 const gp_Pnt& aCenter,
35 const Standard_Real aRadius,
39 Handle(Prs3d_DimensionAspect) LA = aDrawer->DimensionAspect();
41 //Creation et discretisation du plus gros cercle
42 gp_Circ Circ(gp_Ax2(aCenter,aNorm), aRadius);
43 const Standard_Integer nbp = 50;
44 const Standard_Real dteta = (2. * M_PI)/nbp;
46 Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
48 Handle(Graphic3d_ArrayOfPolylines) aPrims = new Graphic3d_ArrayOfPolylines(2*nbp+6,4);
50 gp_Pnt pt1 = ElCLib::Value(0., Circ);
51 aPrims->AddBound(nbp+1);
52 aPrims->AddVertex(pt1);
53 Standard_Real ucur = dteta;
55 for (i = 2; i<=nbp; i++, ucur += dteta)
56 aPrims->AddVertex(ElCLib::Value(ucur, Circ));
57 aPrims->AddVertex(pt1);
59 //Creation et discretisation du plus petit cercle
60 Circ.SetRadius(0.5*aRadius);
61 pt1 = ElCLib::Value(0., Circ);
62 aPrims->AddBound(nbp+1);
63 aPrims->AddVertex(pt1);
65 for (i = 2; i<=nbp; i++, ucur += dteta)
66 aPrims->AddVertex(ElCLib::Value(ucur, Circ));
67 aPrims->AddVertex(pt1);
69 //Creation de la croix
71 gp_Dir vecnorm(aPoint.XYZ() - aCenter.XYZ());
73 vec.Multiply(aRadius);
74 gp_Pnt p1 = aCenter.Translated(vec);
75 gp_Pnt p2 = aCenter.Translated(-vec);
78 aPrims->AddVertex(p1);
79 aPrims->AddVertex(p2);
83 vecnorm.SetCoord(vec.X(), vec.Y(), vec.Z() );
84 vec.SetXYZ(vecnorm.XYZ());
85 vec.Multiply(aRadius);
86 p1 = aCenter.Translated(vec);
87 p2 = aCenter.Translated(-vec);
90 aPrims->AddVertex(p1);
91 aPrims->AddVertex(p2);
93 Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);