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0be7dbe183
Added macro Standard_NODISCARD equivalent to C++17 attribute [[nodiscard]] for compilers that support this. Using Standard_NODISCARD macro for methods that create new object in gp, math, Geom, Bnd packages. Marked equivalent operators with Standard_NODISCARD, if they are defined close to relevant methods. Corrected code where warnings on unused result of calls to methods creating new objects are generated. In most cases it looks like spelling errors (e.g. Normalised() instead of Normalise())
226 lines
6.6 KiB
C++
226 lines
6.6 KiB
C++
// 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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#include <Adaptor2d_HCurve2d.hxx>
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#include <Adaptor3d_HSurface.hxx>
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#include <Contap_ArcFunction.hxx>
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#include <Contap_HContTool.hxx>
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#include <Contap_HCurve2dTool.hxx>
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#include <Contap_SurfProps.hxx>
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#include <gp_Dir.hxx>
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#include <gp_Pnt.hxx>
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#include <IntSurf_Quadric.hxx>
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Contap_ArcFunction::Contap_ArcFunction ():
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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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{}
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void Contap_ArcFunction::Set(const Handle(Adaptor3d_HSurface)& 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 = Contap_HContTool::NbSamplePoints(S);
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Standard_Real U,V;
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// gp_Vec d1u,d1v;
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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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Contap_HContTool::SamplePoint(S,i,U,V);
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// Adaptor3d_HSurfaceTool::D1(S,U,V,solpt,d1u,d1v);
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// myMean = myMean + d1u.Crossed(d1v).Magnitude();
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Contap_SurfProps::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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}
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Standard_Boolean Contap_ArcFunction::Value (const Standard_Real U,
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Standard_Real& F)
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{
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//gp_Vec d1u,d1v;
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gp_Pnt2d pt2d(Contap_HCurve2dTool::Value(myArc,U));
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// Adaptor3d_HSurfaceTool::D1(mySurf,pt2d.X(),pt2d.Y(),solpt,d1u,d1v);
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// gp_Vec norm(d1u.Crossed(d1v));
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gp_Vec norm;
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Contap_SurfProps::Normale(mySurf,pt2d.X(),pt2d.Y(),solpt,norm);
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switch (myType) {
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case Contap_ContourStd:
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{
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F = (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 = (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 = (norm.Dot(myDir)-myCosAng*norm.Magnitude())/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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return Standard_True;
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}
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Standard_Boolean Contap_ArcFunction::Derivative (const Standard_Real U,
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Standard_Real& D)
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{
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gp_Pnt2d pt2d;
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gp_Vec2d d2d;
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Standard_Real dfu =0.,dfv =0.;
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// gp_Vec d1u,d1v,d2u,d2v,d2uv;
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Contap_HCurve2dTool::D1(myArc,U,pt2d,d2d);
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// Adaptor3d_HSurfaceTool::D2(mySurf,pt2d.X(),pt2d.Y(),solpt,d1u,d1v,d2u,d2v,d2uv);
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gp_Vec norm,dnu,dnv;
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Contap_SurfProps::NormAndDn(mySurf,pt2d.X(),pt2d.Y(),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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// dfu = ((d2u.Crossed(d1v) + d1u.Crossed(d2uv)).Dot(myDir))/myMean;
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// dfv = ((d2uv.Crossed(d1v) + d1u.Crossed(d2v)).Dot(myDir))/myMean;
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dfu = (dnu.Dot(myDir))/myMean;
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dfv = (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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// dfu = ((d2u.Crossed(d1v) + d1u.Crossed(d2uv)).Dot(Ep))/myMean;
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// dfv = ((d2uv.Crossed(d1v) + d1u.Crossed(d2v)).Dot(Ep))/myMean;
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dfu = (dnu.Dot(Ep))/myMean;
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dfv = (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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dfu = (dnorm.Dot(myDir)-myCosAng*dnorm.Dot(norm))/myMean;
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dnorm = d2uv.Crossed(d1v) + d1u.Crossed(d2v);
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dfv = (dnorm.Dot(myDir)-myCosAng*dnorm.Dot(norm))/myMean;
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*/
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norm.Normalize();
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dfu = (dnu.Dot(myDir)-myCosAng*dnu.Dot(norm))/myMean;
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dfv = (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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D = d2d.X()*dfu + d2d.Y()*dfv;
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return Standard_True;
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}
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Standard_Boolean Contap_ArcFunction::Values (const Standard_Real U,
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Standard_Real& F,
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Standard_Real& D)
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{
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gp_Pnt2d pt2d;
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gp_Vec2d d2d;
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Standard_Real dfu =0.,dfv =0.;
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// gp_Vec d1u,d1v,d2u,d2v,d2uv;
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Contap_HCurve2dTool::D1(myArc,U,pt2d,d2d);
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// Adaptor3d_HSurfaceTool::D2(mySurf,pt2d.X(),pt2d.Y(),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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Contap_SurfProps::NormAndDn(mySurf,pt2d.X(),pt2d.Y(),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 = (norm.Dot(myDir))/myMean;
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// dfu = ((d2u.Crossed(d1v) + d1u.Crossed(d2uv)).Dot(myDir))/myMean;
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// dfv = ((d2uv.Crossed(d1v) + d1u.Crossed(d2v)).Dot(myDir))/myMean;
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dfu = (dnu.Dot(myDir))/myMean;
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dfv = (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 = (norm.Dot(Ep))/myMean;
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// dfu = ((d2u.Crossed(d1v) + d1u.Crossed(d2uv)).Dot(Ep))/myMean;
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// dfv = ((d2uv.Crossed(d1v) + d1u.Crossed(d2v)).Dot(Ep))/myMean;
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dfu = (dnu.Dot(Ep))/myMean;
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dfv = (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 = (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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dfu = (dnorm.Dot(myDir)-myCosAng*dnorm.Dot(norm))/myMean;
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dnorm = d2uv.Crossed(d1v) + d1u.Crossed(d2v);
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dfv = (dnorm.Dot(myDir)-myCosAng*dnorm.Dot(norm))/myMean;
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*/
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dfu = (dnu.Dot(myDir)-myCosAng*dnu.Dot(norm))/myMean;
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dfv = (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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D = d2d.X()*dfu + d2d.Y()*dfv;
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return Standard_True;
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}
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Standard_Integer Contap_ArcFunction::GetStateNumber ()
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{
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seqpt.Append(solpt);
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return seqpt.Length();
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}
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Standard_Integer Contap_ArcFunction::NbSamples () const
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{
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return Max(Max(Contap_HContTool::NbSamplesU(mySurf,0.,0.),
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Contap_HContTool::NbSamplesV(mySurf,0.,0.)),
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Contap_HContTool::NbSamplesOnArc(myArc));
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}
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//modified by NIZNHY-PKV Thu Mar 29 16:53:07 2001f
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//=======================================================================
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//function : Quadric
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//purpose : returns empty Quadric
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//=======================================================================
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const IntSurf_Quadric& Contap_ArcFunction::Quadric() const
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{
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return(myQuad);
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}
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//modified by NIZNHY-PKV Thu Mar 29 16:53:09 2001t
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