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97 lines
3.6 KiB
C++
97 lines
3.6 KiB
C++
// Created on: 1998-01-20
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// Created by: Julia GERASIMOVA
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// Copyright (c) 1998-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#include <DsgPrs.hxx>
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#include <DsgPrs_EqualRadiusPresentation.hxx>
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#include <gce_MakeDir.hxx>
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#include <Geom_Plane.hxx>
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#include <gp_Dir.hxx>
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#include <gp_Pln.hxx>
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#include <gp_Pnt.hxx>
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#include <gp_Vec.hxx>
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#include <Graphic3d_ArrayOfPolylines.hxx>
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#include <Graphic3d_Group.hxx>
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#include <Precision.hxx>
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#include <Prs3d_DimensionAspect.hxx>
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#include <Prs3d_LineAspect.hxx>
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#include <Prs3d_Presentation.hxx>
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#include <Prs3d_Root.hxx>
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#include <Prs3d_Text.hxx>
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#include <TCollection_ExtendedString.hxx>
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void DsgPrs_EqualRadiusPresentation::Add( const Handle( Prs3d_Presentation )& aPresentation,
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const Handle( Prs3d_Drawer )& aDrawer,
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const gp_Pnt& FirstCenter,
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const gp_Pnt& SecondCenter,
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const gp_Pnt& FirstPoint,
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const gp_Pnt& SecondPoint,
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const Handle( Geom_Plane )& Plane )
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{
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Handle( Prs3d_DimensionAspect ) LA = aDrawer->DimensionAspect();
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Prs3d_Root::CurrentGroup( aPresentation )->SetPrimitivesAspect( LA->LineAspect()->Aspect() );
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Handle(Graphic3d_ArrayOfPolylines) aPrims = new Graphic3d_ArrayOfPolylines(4);
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aPrims->AddVertex(FirstPoint);
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aPrims->AddVertex(FirstCenter);
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aPrims->AddVertex(SecondCenter);
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aPrims->AddVertex(SecondPoint);
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Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
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// Add presentation of arrows
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gp_Dir FirstDir = gce_MakeDir( FirstCenter, FirstPoint ), SecondDir = gce_MakeDir( SecondCenter, SecondPoint );
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DsgPrs::ComputeSymbol( aPresentation, LA, FirstCenter, FirstPoint, FirstDir.Reversed(), FirstDir, DsgPrs_AS_FIRSTPT_LASTAR );
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DsgPrs::ComputeSymbol( aPresentation, LA, SecondCenter, SecondPoint, SecondDir.Reversed(), SecondDir, DsgPrs_AS_FIRSTPT_LASTAR );
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//ota === beging ===
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gp_Pnt Middle( (FirstCenter.XYZ() + SecondCenter.XYZ()) *0.5 ), aTextPos;
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Standard_Real SmallDist;
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//Mark of constraint
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TCollection_ExtendedString aText("==");
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Standard_Real Dist = FirstCenter.Distance( SecondCenter );
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if (Dist > Precision::Confusion())
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{
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SmallDist = Dist * 0.05; // take 1/20 part of length;
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if (SmallDist <= Precision::Confusion())
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SmallDist = Dist;
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gp_Dir LineDir = gce_MakeDir( FirstCenter, SecondCenter );
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gp_Dir OrtDir = Plane->Pln().Axis().Direction() ^ LineDir;
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gp_Vec OrtVec = gp_Vec( OrtDir ) * SmallDist;
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//Compute the text position
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aTextPos = Middle.Translated(OrtVec);
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}
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else
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{
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Standard_Real Rad = Max(FirstCenter.Distance( FirstPoint ), SecondCenter.Distance(SecondPoint));
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SmallDist = Rad *0.05; // take 1/20 part of length;
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if (SmallDist <= Precision::Confusion())
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SmallDist = Rad;
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gp_Vec aVec(SmallDist, SmallDist, SmallDist);
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//Compute the text position
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aTextPos = FirstCenter.Translated(aVec);
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}
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//Draw the text
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Prs3d_Text::Draw (Prs3d_Root::CurrentGroup (aPresentation), LA->TextAspect(), aText, aTextPos);
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//ota === end ===
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}
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