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d5f74e42d6
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast Wrong license statements corrected in several files. Copyright and license statements added in XSD and GLSL files. Copyright year updated in some files. Obsolete documentation files removed from DrawResources.
223 lines
6.3 KiB
C++
223 lines
6.3 KiB
C++
// Copyright (c) 1995-1999 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 <DrawTrSurf_Curve2d.ixx>
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#include <Geom2d_Curve.hxx>
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#include <Geom2d_OffsetCurve.hxx>
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#include <Geom2d_Line.hxx>
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#include <Geom2d_Parabola.hxx>
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#include <Geom2d_Hyperbola.hxx>
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#include <Geom2dAdaptor_Curve.hxx>
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#include <Geom_Plane.hxx>
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#include <GeomTools_Curve2dSet.hxx>
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#include <Geom2dLProp_CLProps2d.hxx>
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#include <gp.hxx>
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#include <TColStd_Array1OfReal.hxx>
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#include <Precision.hxx>
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static Standard_Real DrawTrSurf_CurveLimit = 400;
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extern Standard_Boolean Draw_Bounds;
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//=======================================================================
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//function : DrawTrSurf_Curve2d
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//purpose :
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//=======================================================================
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DrawTrSurf_Curve2d::DrawTrSurf_Curve2d (const Handle(Geom2d_Curve)& C,
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const Standard_Boolean DispOrigin) :
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DrawTrSurf_Drawable (50)
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{
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curv = C;
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look = Draw_vert;
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disporigin = DispOrigin ;
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dispcurvradius = Standard_False;
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radiusmax = 1.0e3;
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radiusratio = 0.1;
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}
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//=======================================================================
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//function : DrawTrSurf_Curve2d
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//purpose :
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//=======================================================================
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DrawTrSurf_Curve2d::DrawTrSurf_Curve2d (const Handle(Geom2d_Curve)& C,
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const Draw_Color& aColor,
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const Standard_Integer Discret,
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const Standard_Boolean DispOrigin,
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const Standard_Boolean DispCurvRadius,
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const Standard_Real RadiusMax,
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const Standard_Real RadiusRatio) :
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DrawTrSurf_Drawable (Discret)
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{
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curv = C;
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look = aColor;
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disporigin = DispOrigin ;
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dispcurvradius = DispCurvRadius;
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radiusmax = RadiusMax;
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radiusratio = RadiusRatio;
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}
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//=======================================================================
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//function : DrawOn
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//purpose :
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//=======================================================================
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void DrawTrSurf_Curve2d::DrawOn (Draw_Display& dis) const
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{
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Standard_Real First = curv->FirstParameter();
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Standard_Real Last = curv->LastParameter();
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Standard_Boolean firstInf = Precision::IsNegativeInfinite(First);
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Standard_Boolean lastInf = Precision::IsPositiveInfinite(Last);
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if (firstInf || lastInf) {
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gp_Pnt2d P1,P2;
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Standard_Real delta = 1;
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if (firstInf && lastInf) {
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do {
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delta *= 2;
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First = - delta;
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Last = delta;
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curv->D0(First,P1);
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curv->D0(Last,P2);
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} while (P1.Distance(P2) < DrawTrSurf_CurveLimit);
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}
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else if (firstInf) {
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curv->D0(Last,P2);
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do {
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delta *= 2;
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First = Last - delta;
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curv->D0(First,P1);
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} while (P1.Distance(P2) < DrawTrSurf_CurveLimit);
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}
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else if (lastInf) {
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curv->D0(First,P1);
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do {
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delta *= 2;
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Last = First + delta;
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curv->D0(Last,P2);
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} while (P1.Distance(P2) < DrawTrSurf_CurveLimit);
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}
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}
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dis.SetColor (look);
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Geom2dAdaptor_Curve C2d(curv,First,Last);
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DrawCurve2dOn (C2d, dis);
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// mark the origin
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if (disporigin) {
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Draw_Bounds = Standard_False;
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gp_Pnt2d p1,p2;
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gp_Vec2d v;
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C2d.D1(Last,p1,v);
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if (v.Magnitude() > gp::Resolution()) {
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Standard_Real L = 20 / dis.Zoom();
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Standard_Real H = 10 / dis.Zoom();
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gp_Dir2d d(v);
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p2.SetCoord(p1.X() - L*d.X() - H*d.Y(), p1.Y() - L*d.Y() + H*d.X());
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dis.MoveTo(p2);
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p2.SetCoord(p1.X() - L*d.X() + H*d.Y(), p1.Y() - L*d.Y() - H*d.X());
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dis.DrawTo(p1);
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dis.DrawTo(p2);
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}
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Draw_Bounds = Standard_True;
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}
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// Draw the curvature Radius
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if (dispcurvradius && (C2d.GetType() != GeomAbs_Line)) {
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Standard_Integer ii;
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Standard_Integer intrv, nbintv = C2d.NbIntervals(GeomAbs_CN);
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TColStd_Array1OfReal TI(1,nbintv+1);
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C2d.Intervals(TI,GeomAbs_CN);
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Standard_Real Resolution = 1.0e-9, Curvature;
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Geom2dLProp_CLProps2d LProp(curv, 2, Resolution);
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gp_Pnt2d P1, P2;
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for (intrv = 1; intrv <= nbintv; intrv++) {
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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 <= GetDiscretisation(); ii++) {
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LProp.SetParameter(t);
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if (LProp.IsTangentDefined()) {
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Curvature = Abs(LProp.Curvature());
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if ( Curvature > Resolution) {
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curv->D0(t, P1);
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dis.MoveTo(P1);
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LRad = 1./Curvature;
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ratio = ( ( LRad > radiusmax) ? radiusmax/LRad : 1 );
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ratio *= radiusratio;
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LProp.CentreOfCurvature(P2);
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gp_Vec2d V(P1, P2);
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dis.DrawTo(P1.Translated(ratio*V));
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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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//=======================================================================
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//function : Copy
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//purpose :
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//=======================================================================
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Handle(Draw_Drawable3D) DrawTrSurf_Curve2d::Copy()const
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{
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Handle(DrawTrSurf_Curve2d) DC = new DrawTrSurf_Curve2d
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(Handle(Geom2d_Curve)::DownCast(curv->Copy()),
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look,
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GetDiscretisation());
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return DC;
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}
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//=======================================================================
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//function : Dump
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//purpose :
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//=======================================================================
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void DrawTrSurf_Curve2d::Dump(Standard_OStream& S) const
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{
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GeomTools_Curve2dSet::PrintCurve2d(curv,S);
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}
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//=======================================================================
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//function : Whatis
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//purpose :
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//=======================================================================
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void DrawTrSurf_Curve2d::Whatis(Draw_Interpretor& S)const
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{
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S << "2d curve";
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}
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//=======================================================================
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//function : Is3D
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//purpose :
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//=======================================================================
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Standard_Boolean DrawTrSurf_Curve2d::Is3D() const
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{
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return Standard_False;
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}
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