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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.
280 lines
10 KiB
C++
280 lines
10 KiB
C++
// Created on: 1994-11-04
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// Created by: Frederic MAUPAS
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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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//:n9 abv 16.02.99: PRO10107: check parameters on curve with PConfusion()!
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//:o6 abv 18.02.99: r0301_db #63077: application of parameter Factor moved
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//:p0 abv 19.02.99: management of 'done' flag improved
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//:p3 abv 23.02.99: bm4_id_punch_d.stp #1313: shift of parameters on ellipse with R1 < R2
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// abv 09.02.99: S4136: eliminate using BRepAPI::Precision()
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#include <StepToGeom_MakeTrimmedCurve.ixx>
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#include <gp_Pnt.hxx>
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#include <Geom_CartesianPoint.hxx>
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#include <Geom_Curve.hxx>
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#include <StepGeom_CartesianPoint.hxx>
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#include <StepGeom_Line.hxx>
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#include <StepGeom_Vector.hxx>
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#include <StepGeom_Circle.hxx>
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#include <StepGeom_Ellipse.hxx>
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#include <StepGeom_Parabola.hxx>
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#include <StepGeom_Hyperbola.hxx>
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#include <StepGeom_TrimmingSelect.hxx>
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#include <StepGeom_HArray1OfTrimmingSelect.hxx>
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#include <StepGeom_TrimmedCurve.hxx>
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#include <StepToGeom_MakeTrimmedCurve.hxx>
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#include <StepToGeom_MakeCartesianPoint.hxx>
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#include <StepToGeom_MakeCurve.hxx>
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//#include <GeomAPI_ProjectPointOnCurve.hxx>
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//#include <BRepAPI.hxx>
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#include <ElCLib.hxx>
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#include <UnitsMethods.hxx>
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#include <Precision.hxx>
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#include <ShapeAnalysis_Curve.hxx>
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#include <StepGeom_Axis2Placement3d.hxx>
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// ----------------------------------------------------------------
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// ExtractParameter
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// ----------------------------------------------------------------
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//:o6 abv 18 Feb 99: parameter Factor added
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//:p3 abv 23 Feb 99: parameter Shift added
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static Standard_Boolean ExtractParameter
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(const Handle(Geom_Curve) & aGeomCurve,
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const Handle(StepGeom_HArray1OfTrimmingSelect) & TS,
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const Standard_Integer nbSel,
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const Standard_Integer MasterRep,
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const Standard_Real Factor,
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const Standard_Real Shift,
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Standard_Real & aParam)
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{
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Handle(StepGeom_CartesianPoint) aPoint;
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Handle(Geom_CartesianPoint) theGeomPnt;
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Standard_Integer i;
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//:S4136 Standard_Real precBrep = BRepAPI::Precision();
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for ( i = 1 ; i <= nbSel ; i++) {
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StepGeom_TrimmingSelect theSel = TS->Value(i);
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if (MasterRep == 2 && theSel.CaseMember() > 0) {
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aParam = Shift + Factor * theSel.ParameterValue();
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return Standard_True;
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}
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else if (MasterRep == 1 && theSel.CaseNumber() > 0) {
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aPoint = theSel.CartesianPoint();
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StepToGeom_MakeCartesianPoint::Convert(aPoint,theGeomPnt);
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gp_Pnt thegpPnt = theGeomPnt->Pnt();
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//:S4136: use advanced algorithm
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ShapeAnalysis_Curve sac;
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gp_Pnt p;
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sac.Project ( aGeomCurve, thegpPnt, Precision::Confusion(), p, aParam );
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/* //:S4136
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//Trim == natural boundary ?
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if(aGeomCurve->IsKind(STANDARD_TYPE(Geom_BoundedCurve))) {
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Standard_Real frstPar = aGeomCurve->FirstParameter();
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Standard_Real lstPar = aGeomCurve->LastParameter();
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gp_Pnt frstPnt = aGeomCurve->Value(frstPar);
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gp_Pnt lstPnt = aGeomCurve->Value(lstPar);
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if(frstPnt.IsEqual(thegpPnt,precBrep)) {
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aParam = frstPar;
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return Standard_True;
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}
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if(lstPnt.IsEqual(thegpPnt,precBrep)) {
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aParam = lstPar;
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return Standard_True;
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}
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}
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// Project Point On Curve
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GeomAPI_ProjectPointOnCurve PPOC(thegpPnt, aGeomCurve);
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if (PPOC.NbPoints() == 0) {
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return Standard_False;
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}
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aParam = PPOC.LowerDistanceParameter();
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*/
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return Standard_True;
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}
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}
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// if the MasterRepresentation is unspecified:
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// if a ParameterValue exists, it is prefered
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for ( i = 1 ; i <= nbSel ; i++) {
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StepGeom_TrimmingSelect theSel = TS->Value(i);
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if (theSel.CaseMember() > 0) {
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aParam = Shift + Factor * theSel.ParameterValue();
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return Standard_True;
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}
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}
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// if no ParameterValue exists, it is created from the CartesianPointValue
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for ( i = 1 ; i <= nbSel ; i++) {
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StepGeom_TrimmingSelect theSel = TS->Value(i);
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if (theSel.CaseNumber() > 0) {
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aPoint = theSel.CartesianPoint();
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StepToGeom_MakeCartesianPoint::Convert(aPoint,theGeomPnt);
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gp_Pnt thegpPnt = theGeomPnt->Pnt();
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// Project Point On Curve
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ShapeAnalysis_Curve sac;
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gp_Pnt p;
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sac.Project ( aGeomCurve, thegpPnt, Precision::Confusion(), p, aParam );
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/*
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GeomAPI_ProjectPointOnCurve PPOC(thegpPnt, aGeomCurve);
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if (PPOC.NbPoints() == 0) {
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return Standard_False;
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}
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aParam = PPOC.LowerDistanceParameter();
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*/
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return Standard_True;
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}
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}
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return Standard_False; // I suppose
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}
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//=============================================================================
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// Creation d' une Trimmed Curve de Geom a partir d' une Trimmed Curve de Step
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//=============================================================================
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Standard_Boolean StepToGeom_MakeTrimmedCurve::Convert (const Handle(StepGeom_TrimmedCurve)& SC, Handle(Geom_TrimmedCurve)& CC)
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{
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const Handle(StepGeom_Curve) theSTEPCurve = SC->BasisCurve();
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Handle(Geom_Curve) theCurve;
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if (!StepToGeom_MakeCurve::Convert(theSTEPCurve,theCurve))
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return Standard_False;
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const Handle(StepGeom_HArray1OfTrimmingSelect)& theTrimSel1 = SC->Trim1();
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const Handle(StepGeom_HArray1OfTrimmingSelect)& theTrimSel2 = SC->Trim2();
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const Standard_Integer nbSel1 = SC->NbTrim1();
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const Standard_Integer nbSel2 = SC->NbTrim2();
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Standard_Integer MasterRep;
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switch (SC->MasterRepresentation())
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{
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case StepGeom_tpCartesian: MasterRep = 1; break;
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case StepGeom_tpParameter: MasterRep = 2; break;
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default: MasterRep = 0;
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}
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//gka 18.02.04 analysis for case when MasterRep = .Unspecified
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//and parameters are specified as CARTESIAN_POINT
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Standard_Boolean isPoint = Standard_False;
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if(MasterRep == 0 || (MasterRep == 2 && nbSel1 >1 && nbSel2 > 1)) {
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Standard_Integer ii;
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for(ii = 1; ii <= nbSel1; ii++)
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{
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if (!(theTrimSel1->Value(ii).CartesianPoint().IsNull()))
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{
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for(ii = 1; ii <= nbSel2; ii++)
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{
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if (!(theTrimSel2->Value(ii).CartesianPoint().IsNull()))
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{
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isPoint = Standard_True;
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break;
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}
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}
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break;
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}
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}
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}
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//:o6 abv 18 Feb 99: computation of factor moved
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Standard_Real fact = 1., shift = 0.;
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if (theSTEPCurve->IsKind(STANDARD_TYPE(StepGeom_Line))) {
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const Handle(StepGeom_Line) theLine =
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Handle(StepGeom_Line)::DownCast(theSTEPCurve);
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fact = theLine->Dir()->Magnitude() * UnitsMethods::LengthFactor();
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}
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else if (theSTEPCurve->IsKind(STANDARD_TYPE(StepGeom_Circle)) ||
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theSTEPCurve->IsKind(STANDARD_TYPE(StepGeom_Ellipse))) {
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// if (trim1 > 2.1*M_PI || trim2 > 2.1*M_PI) fact = M_PI / 180.;
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fact = UnitsMethods::PlaneAngleFactor();
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//:p3 abv 23 Feb 99: shift on pi/2 on ellipse with R1 < R2
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const Handle(StepGeom_Ellipse) ellipse = Handle(StepGeom_Ellipse)::DownCast(theSTEPCurve);
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if ( !ellipse.IsNull() && ellipse->SemiAxis1() - ellipse->SemiAxis2() < 0. )
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shift = 0.5 * M_PI;
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// skl 04.02.2002 for OCC133: we can not make TrimmedCurve if
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// there is no X-direction in StepGeom_Axis2Placement3d
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const Handle(StepGeom_Conic) conic = Handle(StepGeom_Conic)::DownCast(theSTEPCurve);
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// CKY 6-FEB-2004 for Airbus-MedialAxis :
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// this restriction does not apply for trimming by POINTS
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if(!conic.IsNull() && MasterRep != 1) {
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const StepGeom_Axis2Placement a2p = conic->Position();
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if(a2p.CaseNum(a2p.Value())==2) {
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if( !a2p.Axis2Placement3d()->HasRefDirection() ) {
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////gka 18.02.04 analysis for case when MasterRep = .Unspecified
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//and parameters are specified as CARTESIAN_POINT
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if(isPoint /*&& !MasterRep*/)
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MasterRep =1;
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else {
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if ( SC->SenseAgreement() )
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CC = new Geom_TrimmedCurve(theCurve, 0., 2.*M_PI, Standard_True);
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else
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CC = new Geom_TrimmedCurve(theCurve, 2.*M_PI, 0., Standard_False);
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return Standard_True;
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}
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}
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}
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}
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}
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Standard_Real trim1 = 0.;
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Standard_Real trim2 = 0.;
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Handle(StepGeom_CartesianPoint) TrimCP1, TrimCP2;
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const Standard_Boolean FoundParam1 = ExtractParameter(theCurve, theTrimSel1, nbSel1, MasterRep, fact, shift, trim1);
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const Standard_Boolean FoundParam2 = ExtractParameter(theCurve, theTrimSel2, nbSel2, MasterRep, fact, shift, trim2);
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if (FoundParam1 && FoundParam2) {
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const Standard_Real cf = theCurve->FirstParameter();
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const Standard_Real cl = theCurve->LastParameter();
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//: abv 09.04.99: S4136: bm2_ug_t4-B.stp #70610: protect against OutOfRange
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if ( !theCurve->IsPeriodic() ) {
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if ( trim1 < cf ) trim1 = cf;
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else if ( trim1 > cl ) trim1 = cl;
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if ( trim2 < cf ) trim2 = cf;
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else if ( trim2 > cl ) trim2 = cl;
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}
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if (Abs(trim1 - trim2) < Precision::PConfusion()) {
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if (theCurve->IsPeriodic()) {
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ElCLib::AdjustPeriodic(cf,cl,Precision::PConfusion(),trim1,trim2);
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}
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else if (theCurve->IsClosed()) {
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if (Abs(trim1 - cf) < Precision::PConfusion()) {
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trim2 += cl;
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}
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else {
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trim1 -= cl;
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}
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}
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else {
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//#ifdef DEBUG
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// cout << "Trimming Failed" << endl;
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//#endif
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return Standard_False;
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}
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}
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// CKY 16-DEC-1997 : USA60035 le texte de Part42 parle de degres
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// mais des systemes ecrivent en radians. Exploiter UnitsMethods
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//:o6 trim1 = trim1 * fact;
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//:o6 trim2 = trim2 * fact;
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if ( SC->SenseAgreement() )
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CC = new Geom_TrimmedCurve(theCurve, trim1, trim2, Standard_True);
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else //:abv 29.09.00 PRO20362: reverse parameters in case of reversed curve
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CC = new Geom_TrimmedCurve(theCurve, trim2, trim1, Standard_False);
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return Standard_True;
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}
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return Standard_False;
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}
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