0023634: Eliminate Polyline and Polygon usage in drawers
[occt.git] / src / Prs3d / Prs3d_LengthPresentation.cxx
1 // Copyright (c) 1995-1999 Matra Datavision
2 // Copyright (c) 1999-2012 OPEN CASCADE SAS
3 //
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7 // at http://www.opencascade.org and read it completely before using this file.
8 //
9 // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
10 // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
11 //
12 // The Original Code and all software distributed under the License is
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14 // Initial Developer hereby disclaims all such warranties, including without
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18
19 #include <Prs3d_LengthPresentation.ixx>
20 #include <gp_Lin.hxx>
21 #include <gp_Dir.hxx>
22 #include <ElCLib.hxx>
23 #include <Graphic3d_Group.hxx>
24 #include <Prs3d_Arrow.hxx>
25 #include <Prs3d_ArrowAspect.hxx>
26 #include <Prs3d_LineAspect.hxx>
27 #include <Prs3d_LengthAspect.hxx>
28 #include <TCollection_AsciiString.hxx>
29 #include <Graphic3d_AspectMarker3d.hxx>
30 #include <Graphic3d_AspectLine3d.hxx>
31 #include <Graphic3d_ArrayOfPolylines.hxx>
32 #include <Prs3d_Text.hxx>
33
34 void Prs3d_LengthPresentation::Draw (
35                                const Handle(Prs3d_Presentation)& aPresentation,
36                                const Handle(Prs3d_Drawer)& aDrawer,
37                                const TCollection_ExtendedString& aText,
38                                const gp_Pnt& AttachmentPoint1,
39                                const gp_Pnt& AttachmentPoint2,
40                                const gp_Pnt& OffsetPoint)
41 {
42   Handle(Prs3d_LengthAspect) LA = aDrawer->LengthAspect();
43   Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
44
45   gp_Dir D (gp_Vec(AttachmentPoint1,AttachmentPoint2));
46   gp_Lin L (OffsetPoint,D);
47   gp_Pnt Proj1 = ElCLib::Value(ElCLib::Parameter(L,AttachmentPoint1),L);
48   gp_Pnt Proj2 = ElCLib::Value(ElCLib::Parameter(L,AttachmentPoint2),L);
49
50   Handle(Graphic3d_ArrayOfPolylines) aPrims = new Graphic3d_ArrayOfPolylines(4);
51   aPrims->AddVertex(AttachmentPoint1);
52   aPrims->AddVertex(Proj1);
53   aPrims->AddVertex(Proj2);
54   aPrims->AddVertex(AttachmentPoint2);
55   Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
56
57   Quantity_Length X,Y,Z;
58   Proj1.Coord(X,Y,Z);
59   if (LA->DrawFirstArrow())
60     Prs3d_Arrow::Draw(aPresentation,Proj1,D.Reversed(),LA->Arrow1Aspect()->Angle(),LA->Arrow1Aspect()->Length());
61
62   Quantity_Length X2,Y2,Z2;
63   Proj2.Coord(X2,Y2,Z2);
64   if (LA->DrawSecondArrow())
65     Prs3d_Arrow::Draw(aPresentation,Proj2,D,LA->Arrow2Aspect()->Angle(),LA->Arrow2Aspect()->Length());
66
67   gp_Pnt p( .5*(X+X2), .5*(Y+Y2), .5*(Z+Z2) );
68   Prs3d_Text::Draw(aPresentation,LA->TextAspect(),aText,p);
69 }