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1 | // Created on: 1998-01-20 |
2 | // Created by: Julia GERASIMOVA |
3 | // Copyright (c) 1998-1999 Matra Datavision |
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4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | // |
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6 | // This file is part of Open CASCADE Technology software library. |
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7 | // |
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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 |
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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. |
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13 | // |
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14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
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16 | |
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17 | #include <DsgPrs_EqualRadiusPresentation.ixx> |
18 | |
19 | #include <DsgPrs.hxx> |
20 | #include <Graphic3d_Group.hxx> |
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21 | #include <Prs3d_DimensionAspect.hxx> |
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22 | #include <Prs3d_LineAspect.hxx> |
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23 | #include <Graphic3d_ArrayOfPolylines.hxx> |
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24 | #include <Prs3d_Root.hxx> |
25 | #include <gp_Dir.hxx> |
26 | #include <gce_MakeDir.hxx> |
27 | #include <gp_Vec.hxx> |
28 | #include <gp_Pln.hxx> |
29 | #include <Precision.hxx> |
30 | #include <TCollection_ExtendedString.hxx> |
31 | #include <Prs3d_Text.hxx> |
32 | |
33 | void DsgPrs_EqualRadiusPresentation::Add( const Handle( Prs3d_Presentation )& aPresentation, |
34 | const Handle( Prs3d_Drawer )& aDrawer, |
35 | const gp_Pnt& FirstCenter, |
36 | const gp_Pnt& SecondCenter, |
37 | const gp_Pnt& FirstPoint, |
38 | const gp_Pnt& SecondPoint, |
39 | const Handle( Geom_Plane )& Plane ) |
40 | { |
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41 | Handle( Prs3d_DimensionAspect ) LA = aDrawer->DimensionAspect(); |
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42 | Prs3d_Root::CurrentGroup( aPresentation )->SetPrimitivesAspect( LA->LineAspect()->Aspect() ); |
43 | |
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44 | Handle(Graphic3d_ArrayOfPolylines) aPrims = new Graphic3d_ArrayOfPolylines(4); |
45 | aPrims->AddVertex(FirstPoint); |
46 | aPrims->AddVertex(FirstCenter); |
47 | aPrims->AddVertex(SecondCenter); |
48 | aPrims->AddVertex(SecondPoint); |
49 | Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims); |
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50 | |
51 | // Add presentation of arrows |
52 | gp_Dir FirstDir = gce_MakeDir( FirstCenter, FirstPoint ), SecondDir = gce_MakeDir( SecondCenter, SecondPoint ); |
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53 | DsgPrs::ComputeSymbol( aPresentation, LA, FirstCenter, FirstPoint, FirstDir.Reversed(), FirstDir, DsgPrs_AS_FIRSTPT_LASTAR ); |
54 | DsgPrs::ComputeSymbol( aPresentation, LA, SecondCenter, SecondPoint, SecondDir.Reversed(), SecondDir, DsgPrs_AS_FIRSTPT_LASTAR ); |
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55 | |
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56 | //ota === beging === |
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57 | gp_Pnt Middle( (FirstCenter.XYZ() + SecondCenter.XYZ()) *0.5 ), aTextPos; |
58 | Standard_Real SmallDist; |
59 | //Mark of constraint |
60 | TCollection_ExtendedString aText("=="); |
61 | |
62 | Standard_Real Dist = FirstCenter.Distance( SecondCenter ); |
63 | if (Dist > Precision::Confusion()) |
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64 | { |
65 | SmallDist = Dist * 0.05; // take 1/20 part of length; |
66 | if (SmallDist <= Precision::Confusion()) |
67 | SmallDist = Dist; |
68 | gp_Dir LineDir = gce_MakeDir( FirstCenter, SecondCenter ); |
69 | gp_Dir OrtDir = Plane->Pln().Axis().Direction() ^ LineDir; |
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70 | |
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71 | gp_Vec OrtVec = gp_Vec( OrtDir ) * SmallDist; |
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72 | |
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73 | //Compute the text position |
74 | aTextPos = Middle.Translated(OrtVec); |
75 | } |
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76 | else |
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77 | { |
78 | Standard_Real Rad = Max(FirstCenter.Distance( FirstPoint ), SecondCenter.Distance(SecondPoint)); |
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79 | |
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80 | SmallDist = Rad *0.05; // take 1/20 part of length; |
81 | if (SmallDist <= Precision::Confusion()) |
82 | SmallDist = Rad; |
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83 | |
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84 | gp_Vec aVec(SmallDist, SmallDist, SmallDist); |
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85 | |
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86 | //Compute the text position |
87 | aTextPos = FirstCenter.Translated(aVec); |
88 | } |
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89 | |
90 | //Draw the text |
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91 | Prs3d_Text::Draw(aPresentation, LA->TextAspect(),aText, aTextPos); |
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92 | //ota === end === |
93 | } |