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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.
134 lines
4.5 KiB
C++
134 lines
4.5 KiB
C++
// Created on: 1993-12-06
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// Created by: Jacques GOUSSARD
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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 <BRepBlend_BlendTool.ixx>
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#include <BRepClass_FaceClassifier.hxx>
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#include <Extrema_EPCOfExtPC2d.hxx>
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#include <Extrema_POnCurv2d.hxx>
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#include <TopoDS_Vertex.hxx>
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#include <TopoDS_Edge.hxx>
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#include <BRep_Tool.hxx>
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#include <Geom2d_Line.hxx>
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#include <Geom2dAdaptor_Curve.hxx>
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#include <gp_Dir2d.hxx>
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#include <gp_Vec2d.hxx>
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#include <Geom2dInt_GInter.hxx>
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#include <IntRes2d_IntersectionPoint.hxx>
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#include <BRepBlend_HCurve2dTool.hxx>
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//=======================================================================
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//function : Project
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//purpose : Projection orthogonal d'un point sur une courbe
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// pmn 8/10/98 : On retourne toujours une distance. (BUC60360)
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//=======================================================================
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Standard_Boolean BRepBlend_BlendTool::Project(const gp_Pnt2d& P,
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const Handle(Adaptor3d_HSurface)&,
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const Handle(Adaptor2d_HCurve2d)& C,
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Standard_Real& Paramproj,
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Standard_Real& Dist)
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{
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Paramproj = BRepBlend_HCurve2dTool::FirstParameter(C);
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gp_Pnt2d P2d;
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BRepBlend_HCurve2dTool::D0(C, Paramproj, P2d);
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Dist = P2d.Distance(P);
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const Standard_Real t = BRepBlend_HCurve2dTool::LastParameter(C);
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BRepBlend_HCurve2dTool::D0(C, t, P2d);
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if (P2d.Distance(P) < Dist) {
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Paramproj = t;
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Dist = P2d.Distance(P);
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}
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const Standard_Real epsX = 1.e-8;
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const Standard_Integer Nbu = 20;
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const Standard_Real Tol = 1.e-5;
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Extrema_EPCOfExtPC2d extrema(P, C->Curve2d(), Nbu, epsX, Tol);
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if (!extrema.IsDone())
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return Standard_True;
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const Standard_Integer Nbext = extrema.NbExt();
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Standard_Real aDist2 = Dist * Dist;
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for (Standard_Integer i=1; i<=Nbext; i++) {
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if (extrema.SquareDistance(i) < aDist2) {
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aDist2 = extrema.SquareDistance(i);
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Paramproj = extrema.Point(i).Parameter();
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}
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}
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Dist = sqrt (aDist2);
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return Standard_True;
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}
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//=======================================================================
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//function : Inters
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//purpose : Intersection d'un segment avec une courbe
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//=======================================================================
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Standard_Boolean BRepBlend_BlendTool::Inters(const gp_Pnt2d& P1,
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const gp_Pnt2d& P2,
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const Handle(Adaptor3d_HSurface)&,
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const Handle(Adaptor2d_HCurve2d)& C,
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Standard_Real& Param,
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Standard_Real& Dist)
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{
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const Standard_Real Tol = 1.e-8;
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const gp_Vec2d v(P1,P2);
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const Standard_Real mag = v.Magnitude();
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if(mag < Tol) return Standard_False;
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gp_Dir2d d(v);
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Handle(Geom2d_Line) bid = new Geom2d_Line(P1,d);
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Geom2dAdaptor_Curve seg(bid,-0.01*mag,1.01*mag);
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Geom2dInt_GInter inter(seg,C->Curve2d(),Tol,Tol);
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if (!inter.IsDone())
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return Standard_False;
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const Standard_Integer Nbint = inter.NbPoints();
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if (Nbint == 0)
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return Standard_False;
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IntRes2d_IntersectionPoint ip = inter.Point(1);
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Param = ip.ParamOnSecond();
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Dist = P1.Distance(ip.Value());
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return Standard_True;
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}
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Standard_Integer BRepBlend_BlendTool::NbSamplesV
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(const Handle(Adaptor3d_HSurface)&,
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const Standard_Real,
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const Standard_Real)
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{
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return 10;
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}
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Standard_Integer BRepBlend_BlendTool::NbSamplesU
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(const Handle(Adaptor3d_HSurface)&,
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const Standard_Real,
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const Standard_Real)
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{
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return 10;
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}
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void BRepBlend_BlendTool::Bounds(const Handle(Adaptor2d_HCurve2d)& A,
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Standard_Real& Ufirst,
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Standard_Real& Ulast)
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{
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Ufirst = BRepBlend_HCurve2dTool::FirstParameter(A);
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Ulast = BRepBlend_HCurve2dTool::LastParameter(A);
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}
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