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973c2be1e1
The copying permission statements at the beginning of source files updated to refer to LGPL. Copyright dates extended till 2014 in advance.
108 lines
3.1 KiB
C++
108 lines
3.1 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
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// under the terms of the GNU Lesser General Public 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_BezierCurve.ixx>
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#include <Geom_BezierCurve.hxx>
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#include <gp_Pnt2d.hxx>
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#include <TColgp_Array1OfPnt.hxx>
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#include <TColStd_Array1OfReal.hxx>
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DrawTrSurf_BezierCurve::DrawTrSurf_BezierCurve (
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const Handle(Geom_BezierCurve)& C)
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: DrawTrSurf_Curve (C, Draw_vert, 16, 0.05, 1) {
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drawPoles = Standard_True;
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polesLook = Draw_rouge;
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}
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DrawTrSurf_BezierCurve::DrawTrSurf_BezierCurve (
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const Handle(Geom_BezierCurve)& C, const Draw_Color& CurvColor,
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const Draw_Color& PolesColor, const Standard_Boolean ShowPoles,
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const Standard_Integer Discret,const Standard_Real Deflection,
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const Standard_Integer DrawMode ) :
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DrawTrSurf_Curve (C, CurvColor, Discret, Deflection, DrawMode) {
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drawPoles = ShowPoles;
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polesLook = PolesColor;
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}
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void DrawTrSurf_BezierCurve::DrawOn (Draw_Display& dis) const {
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Handle(Geom_BezierCurve) C = Handle(Geom_BezierCurve)::DownCast(curv);
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if (drawPoles) {
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Standard_Integer NbPoles = C->NbPoles();
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dis.SetColor(polesLook);
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TColgp_Array1OfPnt CPoles (1, NbPoles);
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C->Poles (CPoles);
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dis.MoveTo(CPoles(1));
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for (Standard_Integer i = 2; i <= NbPoles; i++) {
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dis.DrawTo(CPoles(i));
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}
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}
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DrawTrSurf_Curve::DrawOn(dis);
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}
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void DrawTrSurf_BezierCurve::ShowPoles () { drawPoles = Standard_True; }
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void DrawTrSurf_BezierCurve::ClearPoles () { drawPoles = Standard_False; }
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void DrawTrSurf_BezierCurve::FindPole (
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const Standard_Real X, const Standard_Real Y, const Draw_Display& D,
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const Standard_Real XPrec, Standard_Integer& Index) const {
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Handle(Geom_BezierCurve) bz = Handle(Geom_BezierCurve)::DownCast(curv);
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gp_Pnt2d p1(X/D.Zoom(),Y/D.Zoom());
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Standard_Real Prec = XPrec / D.Zoom();
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Index++;
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Standard_Integer NbPoles = bz->NbPoles();
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while (Index <= NbPoles) {
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if (D.Project(bz->Pole(Index)).Distance(p1) <= Prec)
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return;
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Index++;
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}
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Index = 0;
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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_BezierCurve::Copy()const
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{
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Handle(DrawTrSurf_BezierCurve) DC = new DrawTrSurf_BezierCurve
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(Handle(Geom_BezierCurve)::DownCast(curv->Copy()),
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look,polesLook,
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drawPoles,
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GetDiscretisation(),GetDeflection(),GetDrawMode());
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return DC;
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}
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