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// File: DsgPrs_EllipseRadiusPresentation.cxx
// Created: Mon Jan 26 09:59:22 1998
// Author: Sergey ZARITCHNY
// <szy@androx.nnov.matra-dtv.fr>
#include <DsgPrs_EllipseRadiusPresentation.ixx>
#include <gp_Lin.hxx>
#include <gp_Dir.hxx>
#include <gp_Elips.hxx>
#include <ElCLib.hxx>
#include <Graphic3d_Group.hxx>
#include <Graphic3d_Array1OfVertex.hxx>
#include <Prs3d_LengthAspect.hxx>
#include <Prs3d_Arrow.hxx>
#include <Prs3d_ArrowAspect.hxx>
#include <Prs3d_LineAspect.hxx>
#include <Prs3d_Text.hxx>
#include <TCollection_AsciiString.hxx>
#include <TCollection_ExtendedString.hxx>
#include <Graphic3d_Vertex.hxx>
#include <Graphic3d_AspectMarker3d.hxx>
#include <Graphic3d_AspectLine3d.hxx>
#include <Aspect_TypeOfLine.hxx>
#include <Aspect_TypeOfMarker.hxx>
#include <Aspect_AspectMarker.hxx>
#include <Quantity_Color.hxx>
#include <DsgPrs.hxx>
#include <Precision.hxx>
#include <Geom_Ellipse.hxx>
#include <Geom_Line.hxx>
#include <Geom_TrimmedCurve.hxx>
#include <GeomAPI_ExtremaCurveCurve.hxx>
#include <Geom_OffsetCurve.hxx>
//=======================================================================
//function : Add
//purpose :
//=======================================================================
void DsgPrs_EllipseRadiusPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
const Handle(Prs3d_Drawer)& aDrawer,
const Standard_Real theval,
const TCollection_ExtendedString & aText,
// const gp_Elips & anEllipse,
const gp_Pnt & aPosition,
const gp_Pnt & anEndOfArrow,
const gp_Pnt & aCenter,
const Standard_Boolean IsMaxRadius,
const DsgPrs_ArrowSide ArrowPrs)
{
Handle(Prs3d_LengthAspect) LA = aDrawer->LengthAspect();
Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
Standard_Boolean inside = Standard_False;
// gp_Pnt EndPoint, EndOfArrow;
gp_Pnt EndPoint;
Standard_Real dist = aCenter.Distance( aPosition );
if( dist > theval ) EndPoint = aPosition;
else {
EndPoint = anEndOfArrow;
inside = Standard_True;
}
Graphic3d_Array1OfVertex V(1,2);
Quantity_Length X,Y,Z;
aCenter.Coord(X,Y,Z);
V(1).SetCoord(X,Y,Z);
EndPoint.Coord(X,Y,Z);
V(2).SetCoord(X,Y,Z);
Prs3d_Root::CurrentGroup(aPresentation)->Polyline(V);
// value
TCollection_ExtendedString Text;
if(IsMaxRadius)
Text = TCollection_ExtendedString("a = ");
else
Text = TCollection_ExtendedString("b = ");
Text += aText;
Prs3d_Text::Draw(aPresentation, LA->TextAspect(), Text, aPosition );
// arrows
gp_Dir arrdir( gp_Vec( aCenter, anEndOfArrow));
if (!inside) arrdir.Reverse();
DsgPrs::ComputeSymbol(aPresentation, LA, anEndOfArrow, anEndOfArrow, arrdir, arrdir, ArrowPrs );
}
//=======================================================================
//function : Add
//purpose :
//=======================================================================
void DsgPrs_EllipseRadiusPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
const Handle(Prs3d_Drawer)& aDrawer,
const Standard_Real theval,
const TCollection_ExtendedString & aText,
const gp_Elips & anEllipse,
const gp_Pnt & aPosition,
const gp_Pnt & anEndOfArrow,
const gp_Pnt & aCenter,
const Standard_Real uFirst,
const Standard_Boolean IsInDomain,
const Standard_Boolean IsMaxRadius,
const DsgPrs_ArrowSide ArrowPrs)
{
Handle(Prs3d_LengthAspect) LA = aDrawer->LengthAspect();
Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
if(!IsInDomain)
{
Standard_Real parFirst;
Standard_Real uLast = ElCLib::Parameter ( anEllipse, anEndOfArrow );
Standard_Real Alpha = DsgPrs::DistanceFromApex(anEllipse, anEndOfArrow, uFirst);//length of ellipse arc
gp_Vec Vapex(aCenter, ElCLib::Value( uLast, anEllipse )) ;
gp_Vec Vpnt(aCenter, ElCLib::Value( uFirst, anEllipse )) ;
gp_Dir dir(Vpnt ^ Vapex);
if(anEllipse.Position().Direction().IsOpposite( dir, Precision::Angular()))
parFirst = uLast;
else
parFirst = uFirst;
Standard_Integer NodeNumber = Max (4 , Standard_Integer (50. * Alpha / PI));
Graphic3d_Array1OfVertex ApproxArc( 0, NodeNumber-1 );
Standard_Real delta = Alpha / ( NodeNumber - 1 );
gp_Pnt CurPnt;
for (Standard_Integer i = 0 ; i < NodeNumber; i++)
{
CurPnt = ElCLib::Value( parFirst, anEllipse );
ApproxArc(i).SetCoord( CurPnt.X(), CurPnt.Y(), CurPnt.Z() );
parFirst += delta ;
}
Prs3d_Root::CurrentGroup( aPresentation )->Polyline( ApproxArc );
}
DsgPrs_EllipseRadiusPresentation::Add(aPresentation, aDrawer, theval, aText,
aPosition, anEndOfArrow, aCenter, IsMaxRadius, ArrowPrs);
}
//=======================================================================
//function : Add
//purpose : // for offset curve
//=======================================================================
void DsgPrs_EllipseRadiusPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
const Handle(Prs3d_Drawer)& aDrawer,
const Standard_Real theval,
const TCollection_ExtendedString & aText,
const Handle(Geom_OffsetCurve) & aCurve,
const gp_Pnt & aPosition,
const gp_Pnt & anEndOfArrow,
const gp_Pnt & aCenter,
const Standard_Real uFirst,
const Standard_Boolean IsInDomain,
const Standard_Boolean IsMaxRadius,
const DsgPrs_ArrowSide ArrowPrs)
{
Handle(Prs3d_LengthAspect) LA = aDrawer->LengthAspect();
Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
if(!IsInDomain)
{
Standard_Real parFirst;
if(!aCurve->IsCN(1)) return ;
gp_Elips aBEllipse = Handle(Geom_Ellipse)::DownCast(aCurve->BasisCurve ())->Elips();
Standard_Real Offset = aCurve->Offset();
aBEllipse.SetMajorRadius(aBEllipse.MajorRadius() + Offset);
aBEllipse.SetMinorRadius(aBEllipse.MinorRadius() + Offset);
Standard_Real uLast = ElCLib::Parameter ( aBEllipse, anEndOfArrow );
Standard_Real Alpha = DsgPrs::DistanceFromApex(aBEllipse, anEndOfArrow, uFirst);//length of ellipse arc
gp_Pnt p1;
aCurve->D0(uFirst, p1);
gp_Vec Vapex(aCenter, anEndOfArrow) ;
gp_Vec Vpnt (aCenter, p1) ;
gp_Dir dir(Vpnt ^ Vapex);
if(aCurve->Direction().IsOpposite( dir, Precision::Angular()))
parFirst = uLast;
else
parFirst = uFirst;
Standard_Integer NodeNumber = Max (4 , Standard_Integer (50. * Alpha / PI));
Graphic3d_Array1OfVertex ApproxArc( 0, NodeNumber-1 );
Standard_Real delta = Alpha / ( NodeNumber - 1 );
gp_Pnt CurPnt;
for (Standard_Integer i = 0 ; i < NodeNumber; i++)
{
aCurve->D0( parFirst, CurPnt );
ApproxArc(i).SetCoord( CurPnt.X(), CurPnt.Y(), CurPnt.Z() );
parFirst += delta ;
}
Prs3d_Root::CurrentGroup( aPresentation )->Polyline( ApproxArc );
}
DsgPrs_EllipseRadiusPresentation::Add(aPresentation, aDrawer, theval, aText,
aPosition, anEndOfArrow, aCenter, IsMaxRadius, ArrowPrs);
}
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