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122 lines
4.1 KiB
C++
Executable File
122 lines
4.1 KiB
C++
Executable File
#include "stdafx.h"
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#include <ISession2D_Curve.h>
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#include "..\\GeometryApp.h"
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IMPLEMENT_STANDARD_HANDLE(ISession2D_Curve,AIS_InteractiveObject)
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IMPLEMENT_STANDARD_RTTIEXT(ISession2D_Curve,AIS_InteractiveObject)
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ISession2D_Curve::ISession2D_Curve(const Handle_Geom2d_Curve aGeom2dCurve,
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const Aspect_TypeOfLine aTypeOfLine,
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const Aspect_WidthOfLine aWidthOfLine,
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const Standard_Integer aColorIndex)
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:AIS_InteractiveObject()
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{
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myGeom2dCurve = aGeom2dCurve;
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myTypeOfLine = aTypeOfLine ;
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myWidthOfLine = aWidthOfLine;
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myColorIndex = aColorIndex ;
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myDisplayPole = Standard_True;
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myDisplayCurbure = Standard_False;
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myDiscretisation = 20;
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myradiusmax = 10;
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myradiusratio = 1;
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}
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void ISession2D_Curve::Compute(const Handle(PrsMgr_PresentationManager3d)& aPresentationManager,
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const Handle(Prs3d_Presentation)& aPresentation,
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const Standard_Integer aMode)
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{
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Geom2dAdaptor_Curve anAdaptor(myGeom2dCurve);
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GCPnts_QuasiUniformDeflection anEdgeDistrib(anAdaptor,1.e-2);
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if(anEdgeDistrib.IsDone())
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{
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Handle(Graphic3d_ArrayOfPolylines) aCurve =
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new Graphic3d_ArrayOfPolylines(anEdgeDistrib.NbPoints());
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for(Standard_Integer i=1;i<=anEdgeDistrib.NbPoints();++i)
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aCurve->AddVertex(anEdgeDistrib.Value(i));
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Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aCurve);
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}
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if (myDisplayPole)
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{
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if (anAdaptor.GetType() == GeomAbs_BezierCurve )
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{
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Handle(Geom2d_BezierCurve) aBezier = anAdaptor.Bezier();
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Handle(Graphic3d_ArrayOfPolylines) anArrayOfVertex = new Graphic3d_ArrayOfPolylines(aBezier->NbPoles());
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for(int i=1;i<=aBezier->NbPoles();i++)
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{
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gp_Pnt2d CurrentPoint = aBezier->Pole(i);
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anArrayOfVertex->AddVertex(CurrentPoint.X(),CurrentPoint.Y(),0.);
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}
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Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(anArrayOfVertex);
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}
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if (anAdaptor.GetType() == GeomAbs_BSplineCurve )
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{
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Handle(Geom2d_BSplineCurve) aBSpline = anAdaptor.BSpline();
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Handle(Graphic3d_ArrayOfPolylines) anArrayOfVertex =
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new Graphic3d_ArrayOfPolylines(aBSpline->NbPoles());
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for(int i=1;i<=aBSpline->NbPoles();i++)
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{
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gp_Pnt2d CurrentPoint = aBSpline->Pole(i);
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anArrayOfVertex->AddVertex(CurrentPoint.X(),CurrentPoint.Y(),0.);
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}
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Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(anArrayOfVertex);
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}
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}
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if (myDisplayCurbure && (anAdaptor.GetType() != GeomAbs_Line))
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{
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Standard_Integer ii;
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Standard_Integer intrv, nbintv = anAdaptor.NbIntervals(GeomAbs_CN);
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TColStd_Array1OfReal TI(1,nbintv+1);
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anAdaptor.Intervals(TI,GeomAbs_CN);
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Standard_Real Resolution = 1.0e-9, Curvature;
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Geom2dLProp_CLProps2d LProp(myGeom2dCurve, 2, Resolution);
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gp_Pnt2d P1, P2;
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for (intrv = 1; intrv <= nbintv; intrv++)
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{
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Standard_Real t = TI(intrv);
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Standard_Real step = (TI(intrv+1) - t) / GetDiscretisation();
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Standard_Real LRad, ratio;
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for (ii = 1; ii <= myDiscretisation; ii++)
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{
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LProp.SetParameter(t);
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if (LProp.IsTangentDefined())
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{
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Curvature = Abs(LProp.Curvature());
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if ( Curvature > Resolution)
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{
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myGeom2dCurve->D0(t, P1);
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LRad = 1./Curvature;
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ratio = ( ( LRad > myradiusmax) ? myradiusmax/LRad : 1 );
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ratio *= myradiusratio;
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LProp.CentreOfCurvature(P2);
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gp_Vec2d V(P1, P2);
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gp_Pnt2d P3 = P1.Translated(ratio*V);
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Handle(Graphic3d_ArrayOfPolylines) aSegment = new Graphic3d_ArrayOfPolylines(2);
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aSegment->AddVertex(P1.X(),P1.Y(),0.);
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aSegment->AddVertex(P3.X(),P3.Y(),0.);
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Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aSegment);
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}
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}
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t += step;
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}
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}
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}
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}
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void ISession2D_Curve::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection,
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const Standard_Integer aMode)
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{
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}
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