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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.
300 lines
8.1 KiB
C++
300 lines
8.1 KiB
C++
// Created on: 1994-03-18
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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 <GeomAPI_ExtremaSurfaceSurface.ixx>
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#include <GeomAdaptor_Surface.hxx>
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#include <Extrema_POnSurf.hxx>
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#include <Precision.hxx>
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//=======================================================================
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//function : GeomAPI_ExtremaSurfaceSurface
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//purpose :
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//=======================================================================
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GeomAPI_ExtremaSurfaceSurface::GeomAPI_ExtremaSurfaceSurface()
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{
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myIsDone = Standard_False;
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}
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//=======================================================================
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//function : GeomAPI_ExtremaSurfaceSurface
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//purpose :
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//=======================================================================
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GeomAPI_ExtremaSurfaceSurface::GeomAPI_ExtremaSurfaceSurface
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(const Handle(Geom_Surface)& S1,
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const Handle(Geom_Surface)& S2)
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{
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Init(S1,S2);
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}
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//=======================================================================
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//function : GeomAPI_ExtremaSurfaceSurface
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//purpose :
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//=======================================================================
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GeomAPI_ExtremaSurfaceSurface::GeomAPI_ExtremaSurfaceSurface
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(const Handle(Geom_Surface)& S1,
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const Handle(Geom_Surface)& S2,
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const Standard_Real U1min,
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const Standard_Real U1max,
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const Standard_Real V1min,
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const Standard_Real V1max,
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const Standard_Real U2min,
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const Standard_Real U2max,
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const Standard_Real V2min,
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const Standard_Real V2max)
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{
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Init(S1,S2,U1min,U1max,V1min,V1max,U2min,U2max,V2min,V2max);
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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 GeomAPI_ExtremaSurfaceSurface::Init
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(const Handle(Geom_Surface)& S1,
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const Handle(Geom_Surface)& S2)
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{
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GeomAdaptor_Surface TheSurface1 (S1);
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GeomAdaptor_Surface TheSurface2 (S2);
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Standard_Real Tol = Precision::PConfusion();
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Extrema_ExtSS theExtSS(TheSurface1, TheSurface2,Tol,Tol);
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myExtSS = theExtSS;
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myIsDone = myExtSS.IsDone() && ( myExtSS.NbExt() > 0);
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if ( myIsDone) {
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// evaluate the lower distance and its index;
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Standard_Real Dist2, Dist2Min = myExtSS.SquareDistance(1);
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myIndex = 1;
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for ( Standard_Integer i = 2; i <= myExtSS.NbExt(); i++) {
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Dist2 = myExtSS.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 : Init
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//purpose :
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//=======================================================================
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void GeomAPI_ExtremaSurfaceSurface::Init
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(const Handle(Geom_Surface)& S1,
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const Handle(Geom_Surface)& S2,
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const Standard_Real U1min,
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const Standard_Real U1max,
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const Standard_Real V1min,
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const Standard_Real V1max,
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const Standard_Real U2min,
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const Standard_Real U2max,
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const Standard_Real V2min,
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const Standard_Real V2max)
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{
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GeomAdaptor_Surface TheSurface1 (S1,U1min,U1max,V1min,V1max);
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GeomAdaptor_Surface TheSurface2 (S2,U2min,U2max,V2min,V2max);
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Standard_Real Tol = Precision::PConfusion();
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Extrema_ExtSS theExtSS(TheSurface1, TheSurface2,
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U1min,U1max,V1min,V1max,
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U2min,U2max,V2min,V2max,
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Tol,Tol);
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myExtSS = theExtSS;
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myIsDone = myExtSS.IsDone() && ( myExtSS.NbExt() > 0);
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if ( myIsDone) {
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// evaluate the lower distance and its index;
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Standard_Real Dist2, Dist2Min = myExtSS.SquareDistance(1);
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myIndex = 1;
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for ( Standard_Integer i = 2; i <= myExtSS.NbExt(); i++) {
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Dist2 = myExtSS.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 : NbExtrema
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//purpose :
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//=======================================================================
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Standard_Integer GeomAPI_ExtremaSurfaceSurface::NbExtrema() const
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{
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if ( myIsDone)
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return myExtSS.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 : Points
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//purpose :
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//=======================================================================
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void GeomAPI_ExtremaSurfaceSurface::Points
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(const Standard_Integer Index,
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gp_Pnt& P1,
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gp_Pnt& P2) const
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{
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Standard_OutOfRange_Raise_if( Index < 1 || Index > NbExtrema(),
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"GeomAPI_ExtremaCurveCurve::Points");
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Extrema_POnSurf PS1,PS2;
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myExtSS.Points(Index,PS1,PS2);
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P1 = PS1.Value();
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P2 = PS2.Value();
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}
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//=======================================================================
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//function : Parameters
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//purpose :
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//=======================================================================
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void GeomAPI_ExtremaSurfaceSurface::Parameters
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(const Standard_Integer Index,
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Standard_Real& U1,
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Standard_Real& V1,
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Standard_Real& U2,
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Standard_Real& V2) const
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{
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Standard_OutOfRange_Raise_if( Index < 1 || Index > NbExtrema(),
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"GeomAPI_ExtremaCurveCurve::Parameters");
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Extrema_POnSurf PS1,PS2;
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myExtSS.Points(Index,PS1,PS2);
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PS1.Parameter(U1,V1);
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PS2.Parameter(U2,V2);
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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 GeomAPI_ExtremaSurfaceSurface::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 > NbExtrema(),
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"GeomAPI_ExtremaCurveCurve::Distance");
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return sqrt (myExtSS.SquareDistance(Index));
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}
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//=======================================================================
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//function : NearestPoints
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//purpose :
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//=======================================================================
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void GeomAPI_ExtremaSurfaceSurface::NearestPoints
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(gp_Pnt& P1,
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gp_Pnt& P2) const
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{
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StdFail_NotDone_Raise_if
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( !myIsDone, "GeomAPI_ExtremaSurfaceSurface::NearestPoints");
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Points(myIndex,P1,P2);
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}
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//=======================================================================
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//function : LowerDistanceParameters
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//purpose :
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//=======================================================================
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void GeomAPI_ExtremaSurfaceSurface::LowerDistanceParameters
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(Standard_Real& U1,
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Standard_Real& V1,
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Standard_Real& U2,
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Standard_Real& V2) const
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{
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StdFail_NotDone_Raise_if
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( !myIsDone, "GeomAPI_ExtremaSurfaceSurface::LowerDistanceParameters");
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Parameters(myIndex,U1,V1,U2,V2);
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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 GeomAPI_ExtremaSurfaceSurface::LowerDistance() const
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{
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StdFail_NotDone_Raise_if
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( !myIsDone, "GeomAPI_ExtremaSurfaceSurface::LowerDistance");
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return sqrt (myExtSS.SquareDistance(myIndex));
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}
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//=======================================================================
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//function : Standard_Real
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//purpose :
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//=======================================================================
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GeomAPI_ExtremaSurfaceSurface::operator Standard_Real() const
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{
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return LowerDistance();
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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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GeomAPI_ExtremaSurfaceSurface::operator Standard_Integer() const
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{
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return NbExtrema();
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}
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