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175 lines
7.2 KiB
C++
175 lines
7.2 KiB
C++
// Created on: 1998-01-26
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// Created by: Sergey ZARITCHNY
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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_EllipseRadiusPresentation.hxx>
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#include <DsgPrs.hxx>
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#include <ElCLib.hxx>
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#include <Geom_Ellipse.hxx>
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#include <Geom_Line.hxx>
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#include <Geom_OffsetCurve.hxx>
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#include <Geom_TrimmedCurve.hxx>
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#include <GeomAPI_ExtremaCurveCurve.hxx>
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#include <gp_Dir.hxx>
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#include <gp_Elips.hxx>
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#include <gp_Lin.hxx>
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#include <gp_Pnt.hxx>
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#include <Graphic3d_ArrayOfPolylines.hxx>
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#include <Graphic3d_ArrayOfSegments.hxx>
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#include <Graphic3d_AspectLine3d.hxx>
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#include <Graphic3d_AspectMarker3d.hxx>
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#include <Graphic3d_Group.hxx>
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#include <Precision.hxx>
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#include <Prs3d_Arrow.hxx>
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#include <Prs3d_ArrowAspect.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_Text.hxx>
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#include <TCollection_AsciiString.hxx>
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#include <TCollection_ExtendedString.hxx>
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//=======================================================================
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//function : Add
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//purpose :
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//=======================================================================
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void DsgPrs_EllipseRadiusPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
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const Handle(Prs3d_Drawer)& aDrawer,
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const Standard_Real theval,
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const TCollection_ExtendedString & aText,
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const gp_Pnt & aPosition,
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const gp_Pnt & anEndOfArrow,
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const gp_Pnt & aCenter,
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const Standard_Boolean IsMaxRadius,
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const DsgPrs_ArrowSide ArrowPrs)
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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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const Standard_Real dist = aCenter.Distance( aPosition );
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const Standard_Boolean inside = ( dist <= theval );
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gp_Pnt EndPoint(inside? anEndOfArrow : aPosition);
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Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(2);
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aPrims->AddVertex(aCenter);
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aPrims->AddVertex(EndPoint);
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Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
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// value
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TCollection_ExtendedString Text(IsMaxRadius? "a = " : "b = ");
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Text += aText;
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Prs3d_Text::Draw (Prs3d_Root::CurrentGroup (aPresentation), LA->TextAspect(), Text, aPosition);
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// arrows
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gp_Dir arrdir( gp_Vec( aCenter, anEndOfArrow));
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if (!inside) arrdir.Reverse();
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DsgPrs::ComputeSymbol(aPresentation, LA, anEndOfArrow, anEndOfArrow, arrdir, arrdir, ArrowPrs );
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}
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//=======================================================================
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//function : Add
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//purpose :
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//=======================================================================
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void DsgPrs_EllipseRadiusPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
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const Handle(Prs3d_Drawer)& aDrawer,
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const Standard_Real theval,
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const TCollection_ExtendedString & aText,
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const gp_Elips & anEllipse,
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const gp_Pnt & aPosition,
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const gp_Pnt & anEndOfArrow,
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const gp_Pnt & aCenter,
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const Standard_Real uFirst,
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const Standard_Boolean IsInDomain,
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const Standard_Boolean IsMaxRadius,
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const DsgPrs_ArrowSide ArrowPrs)
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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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if(!IsInDomain)
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{
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const Standard_Real uLast = ElCLib::Parameter ( anEllipse, anEndOfArrow );
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const Standard_Real Alpha = DsgPrs::DistanceFromApex(anEllipse, anEndOfArrow, uFirst);//length of ellipse arc
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gp_Vec Vapex(aCenter, ElCLib::Value( uLast, anEllipse )) ;
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gp_Vec Vpnt(aCenter, ElCLib::Value( uFirst, anEllipse )) ;
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gp_Dir dir(Vpnt ^ Vapex);
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Standard_Real parFirst = anEllipse.Position().Direction().IsOpposite( dir, Precision::Angular())? uLast : uFirst;
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const Standard_Integer NodeNumber = Max (4 , Standard_Integer (50. * Alpha / M_PI));
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const Standard_Real delta = Alpha / ( NodeNumber - 1 );
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Handle(Graphic3d_ArrayOfPolylines) aPrims = new Graphic3d_ArrayOfPolylines(NodeNumber);
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for (Standard_Integer i = 0 ; i < NodeNumber; i++, parFirst += delta)
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aPrims->AddVertex(ElCLib::Value( parFirst, anEllipse ));
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Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
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}
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DsgPrs_EllipseRadiusPresentation::Add(aPresentation, aDrawer, theval, aText,
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aPosition, anEndOfArrow, aCenter, IsMaxRadius, ArrowPrs);
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}
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//=======================================================================
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//function : Add
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//purpose : // for offset curve
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//=======================================================================
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void DsgPrs_EllipseRadiusPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
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const Handle(Prs3d_Drawer)& aDrawer,
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const Standard_Real theval,
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const TCollection_ExtendedString & aText,
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const Handle(Geom_OffsetCurve) & aCurve,
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const gp_Pnt & aPosition,
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const gp_Pnt & anEndOfArrow,
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const gp_Pnt & aCenter,
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const Standard_Real uFirst,
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const Standard_Boolean IsInDomain,
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const Standard_Boolean IsMaxRadius,
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const DsgPrs_ArrowSide ArrowPrs)
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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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if(!IsInDomain)
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{
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if(!aCurve->IsCN(1)) return ;
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gp_Elips aBEllipse = Handle(Geom_Ellipse)::DownCast(aCurve->BasisCurve ())->Elips();
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const Standard_Real Offset = aCurve->Offset();
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aBEllipse.SetMajorRadius(aBEllipse.MajorRadius() + Offset);
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aBEllipse.SetMinorRadius(aBEllipse.MinorRadius() + Offset);
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const Standard_Real uLast = ElCLib::Parameter ( aBEllipse, anEndOfArrow );
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const Standard_Real Alpha = DsgPrs::DistanceFromApex(aBEllipse, anEndOfArrow, uFirst);//length of ellipse arc
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gp_Pnt p1;
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aCurve->D0(uFirst, p1);
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gp_Vec Vapex(aCenter, anEndOfArrow) ;
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gp_Vec Vpnt (aCenter, p1) ;
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gp_Dir dir(Vpnt ^ Vapex);
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Standard_Real parFirst = aCurve->Direction().IsOpposite( dir, Precision::Angular())? uLast : uFirst;
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const Standard_Integer NodeNumber = Max (4 , Standard_Integer (50. * Alpha / M_PI));
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const Standard_Real delta = Alpha / ( NodeNumber - 1 );
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Handle(Graphic3d_ArrayOfPolylines) aPrims = new Graphic3d_ArrayOfPolylines(NodeNumber);
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for (Standard_Integer i = 0 ; i < NodeNumber; i++, parFirst += delta)
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{
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aCurve->D0( parFirst, p1 );
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aPrims->AddVertex(p1);
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}
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Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
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}
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DsgPrs_EllipseRadiusPresentation::Add(aPresentation, aDrawer, theval, aText,
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aPosition, anEndOfArrow, aCenter, IsMaxRadius, ArrowPrs);
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}
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