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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.
255 lines
7.2 KiB
C++
255 lines
7.2 KiB
C++
// Created on: 1994-03-23
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// Created by: Bruno DUMORTIER
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// Copyright (c) 1994-1999 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 <Geom2dAPI_ProjectPointOnCurve.ixx>
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#include <Geom2dAdaptor_Curve.hxx>
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//=======================================================================
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//function : Geom2dAPI_ProjectPointOnCurve
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//purpose :
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//=======================================================================
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Geom2dAPI_ProjectPointOnCurve::Geom2dAPI_ProjectPointOnCurve()
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{
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myIsDone = Standard_False;
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}
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//=======================================================================
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//function : Geom2dAPI_ProjectPointOnCurve
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//purpose :
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//=======================================================================
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Geom2dAPI_ProjectPointOnCurve::Geom2dAPI_ProjectPointOnCurve
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(const gp_Pnt2d& P,
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const Handle(Geom2d_Curve)& Curve)
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{
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Init(P,Curve);
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}
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//=======================================================================
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//function : Geom2dAPI_ProjectPointOnCurve
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//purpose :
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//=======================================================================
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Geom2dAPI_ProjectPointOnCurve::Geom2dAPI_ProjectPointOnCurve
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(const gp_Pnt2d& P,
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const Handle(Geom2d_Curve)& Curve,
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const Standard_Real Umin,
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const Standard_Real Usup)
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{
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Init(P,Curve,Umin,Usup);
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}
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//=======================================================================
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//function : Init
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//purpose :
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//=======================================================================
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void Geom2dAPI_ProjectPointOnCurve::Init
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(const gp_Pnt2d& P,
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const Handle(Geom2d_Curve)& Curve)
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{
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Init(P,Curve,Curve->FirstParameter(),Curve->LastParameter());
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}
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//=======================================================================
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//function : Init
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//purpose :
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//=======================================================================
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void Geom2dAPI_ProjectPointOnCurve::Init
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(const gp_Pnt2d& P,
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const Handle(Geom2d_Curve)& Curve,
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const Standard_Real Umin,
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const Standard_Real Usup )
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{
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myC.Load(Curve,Umin,Usup);
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Extrema_ExtPC2d theExtPC2d(P, myC);
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myExtPC = theExtPC2d;
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myIsDone = myExtPC.IsDone() && ( myExtPC.NbExt() > 0);
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// evaluate the lower distance and its index;
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if ( myIsDone) {
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Standard_Real Dist2, Dist2Min = myExtPC.SquareDistance(1);
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myIndex = 1;
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for ( Standard_Integer i = 2; i <= myExtPC.NbExt(); i++) {
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Dist2 = myExtPC.SquareDistance(i);
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if ( Dist2 < Dist2Min) {
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Dist2Min = Dist2;
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myIndex = i;
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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 : NbPoints
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//purpose :
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//=======================================================================
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Standard_Integer Geom2dAPI_ProjectPointOnCurve::NbPoints() const
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{
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if ( myIsDone)
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return myExtPC.NbExt();
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else
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return 0;
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}
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//=======================================================================
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//function : Point
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//purpose :
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//=======================================================================
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gp_Pnt2d Geom2dAPI_ProjectPointOnCurve::Point
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(const Standard_Integer Index) const
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{
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Standard_OutOfRange_Raise_if( Index < 1 || Index > NbPoints(),
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"Geom2dAPI_ProjectPointOnCurve::Point");
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return (myExtPC.Point(Index)).Value();
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}
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//=======================================================================
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//function : Parameter
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//purpose :
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//=======================================================================
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Standard_Real Geom2dAPI_ProjectPointOnCurve::Parameter
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(const Standard_Integer Index) const
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{
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Standard_OutOfRange_Raise_if( Index < 1 || Index > NbPoints(),
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"Geom2dAPI_ProjectPointOnCurve::Parameter");
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return (myExtPC.Point(Index)).Parameter();
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}
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//=======================================================================
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//function : Parameter
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//purpose :
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//=======================================================================
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void Geom2dAPI_ProjectPointOnCurve::Parameter
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(const Standard_Integer Index,
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Standard_Real& U ) const
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{
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Standard_OutOfRange_Raise_if( Index < 1 || Index > NbPoints(),
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"Geom2dAPI_ProjectPointOnCurve::Parameter");
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U = (myExtPC.Point(Index)).Parameter();
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}
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//=======================================================================
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//function : Distance
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//purpose :
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//=======================================================================
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Standard_Real Geom2dAPI_ProjectPointOnCurve::Distance
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(const Standard_Integer Index) const
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{
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Standard_OutOfRange_Raise_if( Index < 1 || Index > NbPoints(),
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"Geom2dAPI_ProjectPointOnCurve::Distance");
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return sqrt(myExtPC.SquareDistance(Index));
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}
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//=======================================================================
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//function : NearestPoint
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//purpose :
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//=======================================================================
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gp_Pnt2d Geom2dAPI_ProjectPointOnCurve::NearestPoint() const
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{
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StdFail_NotDone_Raise_if
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(!myIsDone, "Geom2dAPI_ProjectPointOnCurve:NearestPoint");
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return (myExtPC.Point(myIndex)).Value();
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}
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//=======================================================================
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//function : Standard_Integer
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//purpose :
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//=======================================================================
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Geom2dAPI_ProjectPointOnCurve::operator Standard_Integer() const
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{
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return NbPoints();
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}
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//=======================================================================
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//function : gp_Pnt2d
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//purpose :
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//=======================================================================
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Geom2dAPI_ProjectPointOnCurve::operator gp_Pnt2d() const
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{
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return NearestPoint();
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}
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//=======================================================================
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//function : LowerDistanceParameter
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//purpose :
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//=======================================================================
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Standard_Real Geom2dAPI_ProjectPointOnCurve::LowerDistanceParameter() const
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{
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StdFail_NotDone_Raise_if
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(!myIsDone, "Geom2dAPI_ProjectPointOnCurve:LowerDistanceParameter");
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return (myExtPC.Point(myIndex)).Parameter();
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}
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//=======================================================================
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//function : LowerDistance
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//purpose :
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//=======================================================================
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Standard_Real Geom2dAPI_ProjectPointOnCurve::LowerDistance() const
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{
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StdFail_NotDone_Raise_if
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(!myIsDone,"Geom2dAPI_ProjectPointOnCurve:LowerDistance");
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return sqrt (myExtPC.SquareDistance(myIndex));
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}
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//=======================================================================
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//function : operator
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//purpose :
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//=======================================================================
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Geom2dAPI_ProjectPointOnCurve::operator Standard_Real() const
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{
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return LowerDistance();
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}
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