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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.
131 lines
4.1 KiB
C++
131 lines
4.1 KiB
C++
// Created on: 1994-04-01
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// Created by: Laurent BUCHARD
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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 <BRepClass3d_Intersector3d.ixx>
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#include <IntCurveSurface_IntersectionPoint.hxx>
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#include <gp_Lin.hxx>
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#include <TopoDS_Face.hxx>
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#include <TopAbs.hxx>
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#include <IntCurveSurface_HInter.hxx>
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#include <BRepAdaptor_HSurface.hxx>
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#include <Geom_Line.hxx>
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#include <gp_Pnt2d.hxx>
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#include <BRepClass_FaceClassifier.hxx>
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#include <GeomAdaptor_Curve.hxx>
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#include <GeomAdaptor_HCurve.hxx>
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#include <BRepAdaptor_HSurface.hxx>
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//============================================================================
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BRepClass3d_Intersector3d::BRepClass3d_Intersector3d()
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: done(Standard_False),hasapoint(Standard_False)
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{
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}
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//============================================================================
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void BRepClass3d_Intersector3d::Perform(const gp_Lin& L,
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const Standard_Real /*Prm*/,
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const Standard_Real Tol,
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const TopoDS_Face& Face) {
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IntCurveSurface_HInter HICS;
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BRepAdaptor_Surface surface;
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BRepClass_FaceClassifier classifier2d;
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Handle(Geom_Line) geomline = new Geom_Line(L);
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GeomAdaptor_Curve LL(geomline);
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surface.Initialize(Face,Standard_True);
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const Standard_Boolean IsUPer = surface.IsUPeriodic();
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const Standard_Boolean IsVPer = surface.IsVPeriodic();
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const Standard_Real uperiod = IsUPer ? surface.UPeriod() : 0.0;
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const Standard_Real vperiod = IsVPer ? surface.VPeriod() : 0.0;
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Standard_Real U1 = surface.FirstUParameter();
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Standard_Real U2 = surface.LastUParameter();
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Standard_Real V1 = surface.FirstVParameter();
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Standard_Real V2 = surface.LastVParameter();
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//--
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Handle(GeomAdaptor_HCurve) HLL = new GeomAdaptor_HCurve(LL);
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Handle(BRepAdaptor_HSurface) Hsurface = new BRepAdaptor_HSurface(surface);
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//--
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HICS.Perform(HLL,Hsurface);
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W=RealLast();
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if(HICS.IsDone()) {
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for(Standard_Integer index=HICS.NbPoints(); index>=1; index--) {
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gp_Pnt2d Puv(HICS.Point(index).U(),HICS.Point(index).V());
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Standard_Integer N1 = 0;
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Standard_Integer N2 = 0;
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Standard_Real X = Puv.X();
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Standard_Real Y = Puv.Y();
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if(IsUPer) {
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if(X > U2) {
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N1 = RealToInt( (X - U1) / uperiod );
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}
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if(X < U1) {
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N1 = RealToInt( (X - U2) / uperiod );
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}
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Puv.SetX(X - uperiod * N1);
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}
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if(IsVPer) {
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if(Y > V2) {
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N2 = RealToInt ( (Y - V1) / vperiod );
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}
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if(Y < V1) {
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N2 = RealToInt ( (Y - V2) / vperiod );
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}
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Puv.SetY(Y - vperiod * N2);
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}
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classifier2d.Perform(Face,Puv,Tol);
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TopAbs_State currentstate = classifier2d.State();
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if(currentstate==TopAbs_IN || currentstate==TopAbs_ON) {
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const IntCurveSurface_IntersectionPoint& HICSPoint = HICS.Point(index);
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Standard_Real HICSW = HICSPoint.W();
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// Modified by skv - Fri Mar 4 12:07:34 2005 OCC7966 Begin
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if((W > HICSW) && (HICSW>-Tol)) {
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// if(W > HICSW) {
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// Modified by skv - Fri Mar 4 12:07:34 2005 OCC7966 End
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hasapoint = Standard_True;
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U = HICSPoint.U();
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V = HICSPoint.V();
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W = HICSW;
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transition = HICSPoint.Transition();
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pnt = HICSPoint.Pnt();
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state = currentstate;
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face = Face;
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if(Face.Orientation()==TopAbs_REVERSED) {
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if(transition == IntCurveSurface_In)
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transition = IntCurveSurface_Out;
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else
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transition = IntCurveSurface_In;
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}
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}
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} //-- classifier state is IN or ON
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done = Standard_True;
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} //-- Loop on Intersection points.
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} //-- HICS.IsDone()
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}
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