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// File: AIS_EllipseRadiusDimension.cxx
// Created: Thu Jan 22 10:24:00 1998
// Author: Sergey ZARITCHNY
// <szy@androx.nnov.matra-dtv.fr>
#include <AIS_EllipseRadiusDimension.ixx>
#include <TCollection_ExtendedString.hxx>
#include <ElCLib.hxx>
#include <ElSLib.hxx>
#include <TopoDS.hxx>
#include <BRepAdaptor_Surface.hxx>
#include <BRepAdaptor_Curve.hxx>
#include <Geom_Ellipse.hxx>
#include <Geom_TrimmedCurve.hxx>
#include <Geom_Plane.hxx>
#include <Geom_Surface.hxx>
#include <Geom_CylindricalSurface.hxx>
#include <Geom_SurfaceOfRevolution.hxx>
#include <Geom_CylindricalSurface.hxx>
#include <Geom_SurfaceOfLinearExtrusion.hxx>
#include <GeomAPI_ExtremaCurveCurve.hxx>
#include <Geom_Line.hxx>
#include <GeomAPI.hxx>
#include <gp_Pln.hxx>
#include <gp_Pnt.hxx>
#include <gp_Lin.hxx>
#include <gp_Ax1.hxx>
#include <gp_Dir.hxx>
#include <gp_Vec.hxx>
#include <gp_Elips.hxx>
#include <AIS.hxx>
#include <Precision.hxx>
#include <TopExp_Explorer.hxx>
//=======================================================================
//function : AIS_EllipseRadiusDimension
//purpose :
//=======================================================================
AIS_EllipseRadiusDimension::AIS_EllipseRadiusDimension(const TopoDS_Shape& aShape,
const TCollection_ExtendedString& aText)
:AIS_Relation()
{
myFShape = aShape;
myText = aText;
// ComputeGeometry( );
}
//=======================================================================
//function : ComputeGeometry
//purpose :
//=======================================================================
void AIS_EllipseRadiusDimension::ComputeGeometry()
{
switch (myFShape.ShapeType()) {
case TopAbs_FACE :
{
// compute one face case
ComputeFaceGeometry ();
break;
}
case TopAbs_EDGE:
{
ComputeEdgeGeometry ();
break;
}
default:
break;
}
while (myFirstPar > 2*PI) myFirstPar -= 2*PI;
while (myLastPar > 2*PI) myLastPar -= 2*PI;
while (myFirstPar < 0.0) myFirstPar += 2*PI;
while (myLastPar < 0.0) myLastPar += 2*PI;
}
//=======================================================================
//function : ComputeFaceGeometry
//purpose :
//=======================================================================
void AIS_EllipseRadiusDimension::ComputeFaceGeometry()
{
gp_Pln aPln;
Handle( Geom_Surface ) aBasisSurf;
AIS_KindOfSurface aSurfType;
Standard_Real Offset;
AIS::GetPlaneFromFace( TopoDS::Face( myFShape),
aPln,
aBasisSurf,
aSurfType,
Offset ) ;
if ( aSurfType == AIS_KOS_Plane )
ComputePlanarFaceGeometry( );
else
ComputeCylFaceGeometry( aSurfType, aBasisSurf, Offset );
}
//=======================================================================
//function : ComputeCylFaceGeometry
//purpose : defines Ellipse and plane of dimension
//=======================================================================
void AIS_EllipseRadiusDimension::ComputeCylFaceGeometry(const AIS_KindOfSurface aSurfType,
const Handle( Geom_Surface )& aBasisSurf,
const Standard_Real Offset)
{
BRepAdaptor_Surface surf1(TopoDS::Face(myFShape));
Standard_Real vFirst, vLast;
vFirst = surf1.FirstVParameter();
vLast = surf1.LastVParameter();
Standard_Real vMid = (vFirst + vLast)*0.5;
gp_Pln aPlane;
gp_Ax1 Axis;
// Standard_Real Param;
if (aSurfType == AIS_KOS_Extrusion)
{
Axis.SetDirection((Handle( Geom_SurfaceOfLinearExtrusion )::DownCast( aBasisSurf ))
->Direction() );
Axis.SetLocation( gp_Pnt((Handle( Geom_SurfaceOfLinearExtrusion )::DownCast( aBasisSurf ))
->Direction().XYZ() ) );
aPlane.SetAxis(Axis);
aPlane.SetLocation(myEllipse.Location());
myPlane = new Geom_Plane(aPlane);
Handle(Geom_Curve) aCurve;
aCurve = aBasisSurf->VIso(vMid);
if (aCurve->DynamicType() == STANDARD_TYPE(Geom_Ellipse))
{
myEllipse = Handle(Geom_Ellipse)::DownCast(aCurve)-> Elips();//gp_Elips
myIsAnArc = Standard_False;
}
else if (aCurve->DynamicType() == STANDARD_TYPE(Geom_TrimmedCurve)) {
Handle(Geom_TrimmedCurve) tCurve = Handle(Geom_TrimmedCurve)::DownCast(aCurve);
aCurve = tCurve->BasisCurve();
myFirstPar = tCurve->FirstParameter();
myLastPar = tCurve->LastParameter();
myIsAnArc = Standard_True;
if (aCurve->DynamicType() == STANDARD_TYPE(Geom_Ellipse))
{
myEllipse = Handle(Geom_Ellipse)::DownCast(aCurve)->Elips();//gp_Elips
}
}
else
{
Standard_ConstructionError::Raise("AIS:: Not expected type of surface") ;
return;
}
// Offset
if(surf1.GetType() == GeomAbs_OffsetSurface)
{
if(Offset <0.0 && Abs(Offset) > myEllipse.MinorRadius ())
{
Standard_ConstructionError::Raise("AIS:: Absolute value of negative offset is larger than MinorRadius");
return;
}
myOffsetCurve = new Geom_OffsetCurve(new Geom_Ellipse(myEllipse), Offset,
myPlane->Pln().Axis().Direction());
myOffset = Offset;
myIsOffset = Standard_True;
gp_Elips elips = myEllipse;
Standard_Real Val = Offset + elips.MajorRadius ();//simulation
myEllipse.SetMajorRadius (Val);
Val = Offset + elips.MinorRadius ();
myEllipse.SetMinorRadius (Val);
}
else
myIsOffset = Standard_False;
}
}
//=======================================================================
//function : ComputePlanarFaceGeometry
//purpose :
//=======================================================================
void AIS_EllipseRadiusDimension::ComputePlanarFaceGeometry()
{
Standard_Boolean find = Standard_False;
gp_Pnt ptfirst,ptend;
TopExp_Explorer ExploEd( TopoDS::Face(myFShape), TopAbs_EDGE );
for ( ; ExploEd.More(); ExploEd.Next())
{
TopoDS_Edge curedge = TopoDS::Edge( ExploEd.Current() );
Handle(Geom_Curve) curv;
Handle(Geom_Ellipse) ellips;
if (AIS::ComputeGeometry(curedge,curv,ptfirst,ptend))
{
if (curv->DynamicType() == STANDARD_TYPE(Geom_Ellipse))
{
ellips = Handle(Geom_Ellipse)::DownCast(curv);
if ( !ellips.IsNull() ) {
myEllipse = ellips->Elips();
find = Standard_True;
break;
}
}
}
}
if( !find )
{
Standard_ConstructionError::Raise("AIS:: Curve is not an ellipsee or is Null") ;
return;
}
if ( !ptfirst.IsEqual(ptend, Precision::Confusion()) )
{
myIsAnArc = Standard_True;
myFirstPar = ElCLib::Parameter(myEllipse, ptfirst);
myLastPar = ElCLib::Parameter(myEllipse, ptend);
}
else
myIsAnArc = Standard_False;
BRepAdaptor_Surface surfAlgo (TopoDS::Face(myFShape));
myPlane = new Geom_Plane( surfAlgo.Plane() );
}
//=======================================================================
//function : ComputeEdgeGeometry
//purpose :
//=======================================================================
void AIS_EllipseRadiusDimension::ComputeEdgeGeometry()
{
gp_Pnt ptfirst,ptend;
Handle(Geom_Curve) curv;
if (!AIS::ComputeGeometry(TopoDS::Edge(myFShape),curv,ptfirst,ptend)) return;
Handle(Geom_Ellipse) elips = Handle(Geom_Ellipse)::DownCast(curv);
if ( elips.IsNull()) return;
myEllipse = elips->Elips();
gp_Pln aPlane;
aPlane.SetPosition(gp_Ax3(myEllipse.Position()));
myPlane = new Geom_Plane(aPlane);
if ( ptfirst.IsEqual(ptend, Precision::Confusion()) ) {
myIsAnArc = Standard_False;
}
else {
myIsAnArc = Standard_True;
myFirstPar = ElCLib::Parameter(myEllipse, ptfirst);
myLastPar = ElCLib::Parameter(myEllipse, ptend);
}
}
//=======================================================================
//function : KindOfDimension
//purpose :
//=======================================================================
AIS_KindOfDimension AIS_EllipseRadiusDimension::KindOfDimension() const
{
return AIS_KOD_ELLIPSERADIUS;
}
//=======================================================================
//function : IsMovable
//purpose :
//=======================================================================
Standard_Boolean AIS_EllipseRadiusDimension::IsMovable() const
{
return Standard_True;
}
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