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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.
343 lines
10 KiB
C++
343 lines
10 KiB
C++
// Created on: 1993-03-24
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// Created by: JCV
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// Copyright (c) 1993-1999 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 <Geom2d_TrimmedCurve.ixx>
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#include <gp.hxx>
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#include <Geom2d_Geometry.hxx>
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#include <Geom2d_BSplineCurve.hxx>
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#include <Geom2d_BezierCurve.hxx>
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#include <Geom2d_OffsetCurve.hxx>
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#include <Geom2d_Line.hxx>
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#include <Geom2d_Circle.hxx>
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#include <Geom2d_Ellipse.hxx>
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#include <Geom2d_Hyperbola.hxx>
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#include <Geom2d_Parabola.hxx>
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#include <Standard_ConstructionError.hxx>
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#include <Standard_RangeError.hxx>
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#include <ElCLib.hxx>
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#include <Precision.hxx>
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typedef Handle(Geom2d_TrimmedCurve) Handle(TrimmedCurve);
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typedef Geom2d_TrimmedCurve TrimmedCurve;
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typedef Handle(Geom2d_Curve) Handle(Curve);
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typedef Handle(Geom2d_Geometry) Handle(Geometry);
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typedef gp_Ax2d Ax2d;
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typedef gp_Pnt2d Pnt2d;
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typedef gp_Trsf2d Trsf2d;
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typedef gp_Vec2d Vec2d;
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//=======================================================================
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//function : Copy
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//purpose :
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//=======================================================================
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Handle(Geom2d_Geometry) Geom2d_TrimmedCurve::Copy () const
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{
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Handle(TrimmedCurve) Tc;
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Tc = new TrimmedCurve (basisCurve, uTrim1, uTrim2);
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return Tc;
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}
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//=======================================================================
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//function : Geom2d_TrimmedCurve
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//purpose :
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//=======================================================================
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Geom2d_TrimmedCurve::Geom2d_TrimmedCurve (const Handle(Geom2d_Curve)& C,
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const Standard_Real U1,
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const Standard_Real U2,
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const Standard_Boolean Sense) :
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uTrim1 (U1),
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uTrim2 (U2)
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{
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if(C.IsNull()) Standard_ConstructionError::Raise("Geom2d_TrimmedCurve:: C is null");
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// kill trimmed basis curves
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Handle(Geom2d_TrimmedCurve) T = Handle(Geom2d_TrimmedCurve)::DownCast(C);
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if (!T.IsNull())
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basisCurve = Handle(Curve)::DownCast(T->BasisCurve()->Copy());
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else
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basisCurve = Handle(Curve)::DownCast(C->Copy());
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SetTrim(U1,U2,Sense);
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}
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//=======================================================================
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//function : Reverse
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//purpose :
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//=======================================================================
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void Geom2d_TrimmedCurve::Reverse ()
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{
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Standard_Real U1 = basisCurve->ReversedParameter(uTrim2);
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Standard_Real U2 = basisCurve->ReversedParameter(uTrim1);
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basisCurve->Reverse();
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SetTrim(U1,U2);
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}
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//=======================================================================
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//function : ReversedParamater
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//purpose :
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//=======================================================================
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Standard_Real Geom2d_TrimmedCurve::ReversedParameter( const Standard_Real U) const
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{
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return basisCurve->ReversedParameter(U);
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}
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//=======================================================================
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//function : SetTrim
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//purpose :
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//=======================================================================
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void Geom2d_TrimmedCurve::SetTrim (const Standard_Real U1,
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const Standard_Real U2,
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const Standard_Boolean Sense)
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{
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Standard_Boolean sameSense = Standard_True;
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if (U1 == U2)
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Standard_ConstructionError::Raise("Geom2d_TrimmedCurve::U1 == U2");
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Standard_Real Udeb = basisCurve->FirstParameter();
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Standard_Real Ufin = basisCurve->LastParameter();
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if (basisCurve->IsPeriodic()) {
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sameSense = Sense;
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// set uTrim1 in the range Udeb , Ufin
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// set uTrim2 in the range uTrim1 , uTrim1 + Period()
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uTrim1 = U1;
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uTrim2 = U2;
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ElCLib::AdjustPeriodic(Udeb, Ufin,
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Min(Abs(uTrim2-uTrim1)/2,Precision::PConfusion()),
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uTrim1, uTrim2);
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}
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else {
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if (U1 < U2) {
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sameSense = Sense;
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uTrim1 = U1;
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uTrim2 = U2;
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}
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else {
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sameSense = !Sense;
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uTrim1 = U2;
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uTrim2 = U1;
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}
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if ((Udeb - uTrim1 > Precision::PConfusion()) ||
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(uTrim2 - Ufin > Precision::PConfusion())) {
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Standard_ConstructionError::Raise
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("Geom_TrimmedCurve::parameters out of range");
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}
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}
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if (!sameSense)
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Reverse();
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}
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//=======================================================================
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//function : BasisCurve
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//purpose :
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//=======================================================================
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Handle(Curve) Geom2d_TrimmedCurve::BasisCurve () const
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{
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return basisCurve;
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}
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//=======================================================================
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//function : Continuity
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//purpose :
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//=======================================================================
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GeomAbs_Shape Geom2d_TrimmedCurve::Continuity () const
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{
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return basisCurve->Continuity();
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}
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//=======================================================================
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//function : IsCN
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//purpose :
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//=======================================================================
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Standard_Boolean Geom2d_TrimmedCurve::IsCN (const Standard_Integer N) const
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{
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Standard_RangeError_Raise_if (N < 0, " ");
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return basisCurve->IsCN (N);
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}
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//=======================================================================
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//function : EndPoint
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//purpose :
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//=======================================================================
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Pnt2d Geom2d_TrimmedCurve::EndPoint () const
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{
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return basisCurve->Value(uTrim2);
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}
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//=======================================================================
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//function : FirstParameter
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//purpose :
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//=======================================================================
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Standard_Real Geom2d_TrimmedCurve::FirstParameter () const { return uTrim1; }
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//=======================================================================
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//function : IsClosed
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//purpose :
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//=======================================================================
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Standard_Boolean Geom2d_TrimmedCurve::IsClosed () const
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{
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Standard_Real Dist =
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Value(FirstParameter()).Distance(Value(LastParameter()));
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return ( Dist <= gp::Resolution());
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}
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//=======================================================================
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//function : IsPeriodic
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//purpose :
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//=======================================================================
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Standard_Boolean Geom2d_TrimmedCurve::IsPeriodic () const
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{
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//return basisCurve->IsPeriodic();
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return Standard_False;
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}
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//=======================================================================
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//function : Period
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//purpose :
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//=======================================================================
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Standard_Real Geom2d_TrimmedCurve::Period () const
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{
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return basisCurve->Period();
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}
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//=======================================================================
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//function : LastParameter
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//purpose :
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//=======================================================================
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Standard_Real Geom2d_TrimmedCurve::LastParameter () const { return uTrim2; }
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//=======================================================================
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//function : StartPoint
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//purpose :
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//=======================================================================
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Pnt2d Geom2d_TrimmedCurve::StartPoint () const
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{
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gp_Pnt2d P;
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P = basisCurve->Value(uTrim1);
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return P;
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}
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//=======================================================================
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//function : D0
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//purpose :
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//=======================================================================
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void Geom2d_TrimmedCurve::D0 (const Standard_Real U,
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Pnt2d& P ) const {
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basisCurve->D0(U, P);
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}
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//=======================================================================
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//function : D1
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//purpose :
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//=======================================================================
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void Geom2d_TrimmedCurve::D1 (const Standard_Real U, Pnt2d& P, Vec2d& V1) const
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{
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basisCurve->D1 (U, P, V1);
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}
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//=======================================================================
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//function : D2
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//purpose :
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//=======================================================================
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void Geom2d_TrimmedCurve::D2 (const Standard_Real U,
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Pnt2d& P,
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Vec2d& V1, Vec2d& V2) const
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{
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basisCurve->D2 (U, P, V1, V2);
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}
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//=======================================================================
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//function : D3
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//purpose :
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//=======================================================================
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void Geom2d_TrimmedCurve::D3 (const Standard_Real U,
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Pnt2d& P,
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Vec2d& V1, Vec2d& V2, Vec2d& V3) const
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{
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basisCurve->D3 (U, P, V1, V2, V3);
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}
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//=======================================================================
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//function : DN
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//purpose :
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//=======================================================================
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Vec2d Geom2d_TrimmedCurve::DN (const Standard_Real U, const Standard_Integer N) const
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{
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return basisCurve->DN(U, N);
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}
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//=======================================================================
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//function : Transform
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//purpose :
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//=======================================================================
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void Geom2d_TrimmedCurve::Transform (const Trsf2d& T)
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{
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basisCurve->Transform (T);
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Standard_Real U1 = basisCurve->TransformedParameter(uTrim1,T);
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Standard_Real U2 = basisCurve->TransformedParameter(uTrim2,T);
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SetTrim(U1,U2);
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}
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//=======================================================================
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//function : TransformedParameter
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//purpose :
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//=======================================================================
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Standard_Real Geom2d_TrimmedCurve::TransformedParameter(const Standard_Real U,
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const gp_Trsf2d& T) const
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{
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return basisCurve->TransformedParameter(U,T);
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}
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//=======================================================================
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//function : ParametricTransformation
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//purpose :
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//=======================================================================
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Standard_Real Geom2d_TrimmedCurve::ParametricTransformation(const gp_Trsf2d& T) const
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{
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return basisCurve->ParametricTransformation(T);
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}
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