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ed4415982c
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.
283 lines
7.6 KiB
Plaintext
283 lines
7.6 KiB
Plaintext
// Created on: 1993-06-03
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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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// jag 940616 #define Tolpetit 1.e-16
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#include <gp.hxx>
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Contap_SurfFunction::Contap_SurfFunction ():
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myMean(1.),
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myType(Contap_ContourStd),
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myDir(0.,0.,1.),
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myCosAng(0.), // PI/2 - Angle de depouille
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tol(1.e-6),
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computed(Standard_False),
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derived(Standard_False)
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{}
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void Contap_SurfFunction::Set(const TheSurface& S)
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{
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mySurf = S;
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Standard_Integer i;
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Standard_Integer nbs = TheContTool::NbSamplePoints(S);
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Standard_Real U,V;
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gp_Vec norm;
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if (nbs > 0) {
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myMean = 0.;
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for (i = 1; i <= nbs; i++) {
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TheContTool::SamplePoint(S,i,U,V);
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// TheSurfaceTool::D1(S,U,V,solpt,d1u,d1v);
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// myMean = myMean + d1u.Crossed(d1v).Magnitude();
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TheSurfProps::Normale(S,U,V,solpt,norm);
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myMean = myMean + norm.Magnitude();
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}
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myMean = myMean / ((Standard_Real)nbs);
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}
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computed = Standard_False;
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derived = Standard_False;
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}
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Standard_Integer Contap_SurfFunction::NbVariables () const
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{
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return 2;
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}
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Standard_Integer Contap_SurfFunction::NbEquations () const
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{
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return 1;
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}
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Standard_Boolean Contap_SurfFunction::Value(const math_Vector& X,
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math_Vector& F)
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{
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Usol = X(1); Vsol = X(2);
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// TheSurfaceTool::D1(mySurf,Usol,Vsol,solpt,d1u,d1v);
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// gp_Vec norm(d1u.Crossed(d1v));
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gp_Vec norm;
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TheSurfProps::Normale(mySurf,Usol,Vsol,solpt,norm);
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switch (myType) {
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case Contap_ContourStd:
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{
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F(1) = valf = (norm.Dot(myDir))/myMean;
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}
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break;
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case Contap_ContourPrs:
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{
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F(1) = valf = (norm.Dot(gp_Vec(myEye,solpt)))/myMean;
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}
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break;
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case Contap_DraftStd:
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{
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F(1) = valf = (norm.Dot(myDir)-myCosAng*norm.Magnitude())/myMean;
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}
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break;
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default:
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{
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}
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}
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computed = Standard_False;
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derived = Standard_False;
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return Standard_True;
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}
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Standard_Boolean Contap_SurfFunction::Derivatives(const math_Vector& X,
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math_Matrix& Grad)
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{
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// gp_Vec d2u,d2v,d2uv;
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Usol = X(1); Vsol = X(2);
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// TheSurfaceTool::D2(mySurf,Usol,Vsol,solpt,d1u,d1v,d2u,d2v,d2uv);
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gp_Vec norm,dnu,dnv;
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TheSurfProps::NormAndDn(mySurf,Usol,Vsol,solpt,norm,dnu,dnv);
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switch (myType) {
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case Contap_ContourStd:
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{
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// Grad(1,1) = ((d2u.Crossed(d1v) + d1u.Crossed(d2uv)).Dot(myDir))/myMean;
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// Grad(1,2) = ((d2uv.Crossed(d1v) + d1u.Crossed(d2v)).Dot(myDir))/myMean;
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Grad(1,1) = (dnu.Dot(myDir))/myMean;
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Grad(1,2) = (dnv.Dot(myDir))/myMean;
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}
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break;
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case Contap_ContourPrs:
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{
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gp_Vec Ep(myEye,solpt);
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Grad(1,1) = (dnu.Dot(Ep))/myMean;
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Grad(1,2) = (dnv.Dot(Ep))/myMean;
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}
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break;
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case Contap_DraftStd:
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{
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// gp_Vec norm(d1u.Crossed(d1v).Normalized());
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// gp_Vec dnorm(d2u.Crossed(d1v) + d1u.Crossed(d2uv));
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// Grad(1,1) = (dnorm.Dot(myDir)-myCosAng*dnorm.Dot(norm))/myMean;
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// dnorm = d2uv.Crossed(d1v) + d1u.Crossed(d2v);
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// Grad(1,2) = (dnorm.Dot(myDir)-myCosAng*dnorm.Dot(norm))/myMean;
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norm.Normalize();
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Grad(1,1) = (dnu.Dot(myDir)-myCosAng*dnu.Dot(norm))/myMean;
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Grad(1,2) = (dnv.Dot(myDir)-myCosAng*dnv.Dot(norm))/myMean;
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}
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break;
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case Contap_DraftPrs:
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default:
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{
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}
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}
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Fpu = Grad(1,1); Fpv = Grad(1,2);
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computed = Standard_False;
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derived = Standard_True;
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return Standard_True;
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}
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Standard_Boolean Contap_SurfFunction::Values (const math_Vector& X,
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math_Vector& F,
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math_Matrix& Grad)
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{
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// gp_Vec d2u,d2v,d2uv;
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Usol = X(1); Vsol = X(2);
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// TheSurfaceTool::D2(mySurf,Usol,Vsol,solpt,d1u,d1v,d2u,d2v,d2uv);
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// gp_Vec norm(d1u.Crossed(d1v));
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gp_Vec norm,dnu,dnv;
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TheSurfProps::NormAndDn(mySurf,Usol,Vsol,solpt,norm,dnu,dnv);
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switch (myType) {
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case Contap_ContourStd:
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{
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F(1) = (norm.Dot(myDir))/myMean;
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// Grad(1,1) = ((d2u.Crossed(d1v) + d1u.Crossed(d2uv)).Dot(myDir))/myMean;
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// Grad(1,2) = ((d2uv.Crossed(d1v) + d1u.Crossed(d2v)).Dot(myDir))/myMean;
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Grad(1,1) = (dnu.Dot(myDir))/myMean;
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Grad(1,2) = (dnv.Dot(myDir))/myMean;
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}
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break;
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case Contap_ContourPrs:
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{
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gp_Vec Ep(myEye,solpt);
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F(1) = (norm.Dot(Ep))/myMean;
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// Grad(1,1) = ((d2u.Crossed(d1v) + d1u.Crossed(d2uv)).Dot(Ep))/myMean;
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// Grad(1,2) = ((d2uv.Crossed(d1v) + d1u.Crossed(d2v)).Dot(Ep))/myMean;
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Grad(1,1) = (dnu.Dot(Ep))/myMean;
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Grad(1,2) = (dnv.Dot(Ep))/myMean;
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}
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break;
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case Contap_DraftStd:
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{
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F(1) = (norm.Dot(myDir)-myCosAng*norm.Magnitude())/myMean;
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norm.Normalize();
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/*
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gp_Vec dnorm(d2u.Crossed(d1v) + d1u.Crossed(d2uv));
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Grad(1,1) = (dnorm.Dot(myDir)-myCosAng*dnorm.Dot(norm))/myMean;
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dnorm = d2uv.Crossed(d1v) + d1u.Crossed(d2v);
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Grad(1,2) = (dnorm.Dot(myDir)-myCosAng*dnorm.Dot(norm))/myMean;
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*/
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Grad(1,1) = (dnu.Dot(myDir)-myCosAng*dnu.Dot(norm))/myMean;
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Grad(1,2) = (dnv.Dot(myDir)-myCosAng*dnv.Dot(norm))/myMean;
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}
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break;
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case Contap_DraftPrs:
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default:
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{
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}
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}
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valf = F(1);
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Fpu = Grad(1,1); Fpv = Grad(1,2);
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computed = Standard_False;
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derived = Standard_True;
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return Standard_True;
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}
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Standard_Boolean Contap_SurfFunction::IsTangent ()
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{
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if (!computed) {
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computed = Standard_True;
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if(!derived) {
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// gp_Vec d2u,d2v,d2uv;
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// TheSurfaceTool::D2(mySurf, Usol, Vsol, solpt, d1u, d1v, d2u, d2v, d2uv);
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gp_Vec norm,dnu,dnv;
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TheSurfProps::NormAndDn(mySurf,Usol,Vsol,solpt,norm,dnu,dnv);
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switch (myType) {
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case Contap_ContourStd:
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{
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// Fpu = ((d2u.Crossed(d1v) + d1u.Crossed(d2uv)).Dot(myDir))/myMean;
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// Fpv = ((d2uv.Crossed(d1v) + d1u.Crossed(d2v)).Dot(myDir))/myMean;
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Fpu = (dnu.Dot(myDir))/myMean;
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Fpv = (dnv.Dot(myDir))/myMean;
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}
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break;
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case Contap_ContourPrs:
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{
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gp_Vec Ep(myEye,solpt);
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// Fpu = ((d2u.Crossed(d1v) + d1u.Crossed(d2uv)).Dot(Ep))/myMean;
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// Fpv = ((d2uv.Crossed(d1v) + d1u.Crossed(d2v)).Dot(Ep))/myMean;
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Fpu = (dnu.Dot(Ep))/myMean;
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Fpv = (dnv.Dot(Ep))/myMean;
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}
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break;
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case Contap_DraftStd:
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{
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/*
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gp_Vec norm(d1u.Crossed(d1v).Normalized());
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gp_Vec dnorm(d2u.Crossed(d1v) + d1u.Crossed(d2uv));
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Fpu = (dnorm.Dot(myDir)-myCosAng*dnorm.Dot(norm))/myMean;
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dnorm = d2uv.Crossed(d1v) + d1u.Crossed(d2v);
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Fpv = (dnorm.Dot(myDir)-myCosAng*dnorm.Dot(norm))/myMean;
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*/
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norm.Normalize();
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Fpu = (dnu.Dot(myDir)-myCosAng*dnu.Dot(norm))/myMean;
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Fpv = (dnv.Dot(myDir)-myCosAng*dnv.Dot(norm))/myMean;
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}
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break;
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case Contap_DraftPrs:
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default:
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{
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}
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}
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derived = Standard_True;
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}
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tangent = Standard_False;
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Standard_Real D = Sqrt (Fpu * Fpu + Fpv * Fpv);
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if (D <= gp::Resolution()) {
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tangent = Standard_True;
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}
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else {
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d2d = gp_Dir2d(-Fpv,Fpu);
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gp_Vec d1u,d1v;
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TheSurfaceTool::D1(mySurf, Usol, Vsol, solpt, d1u, d1v); // ajout jag 02.95
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gp_XYZ d3dxyz(-Fpv*d1u.XYZ());
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d3dxyz.Add(Fpu*d1v.XYZ());
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d3d.SetXYZ(d3dxyz);
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//jag 940616 if (d3d.Magnitude() <= Tolpetit) {
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if (d3d.Magnitude() <= tol) {
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tangent = Standard_True;
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}
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}
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}
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return tangent;
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}
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