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occt/src/ShapeUpgrade/ShapeUpgrade_ShapeConvertToBezier.cxx
abv 42cf5bc1ca 0024002: Overall code and build procedure refactoring -- automatic 
Automatic upgrade of OCCT code by command "occt_upgrade . -nocdl":
- WOK-generated header files from inc and sources from drv are moved to src
- CDL files removed
- All packages are converted to nocdlpack
2015-07-12 07:42:38 +03:00

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// Created on: 1999-05-14
// Created by: data exchange team
// Copyright (c) 1999-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
// 15.06 2000 gka fix against small edges ; merging ends pcurves and 3d curves
#include <BRep_Builder.hxx>
#include <BRep_Tool.hxx>
#include <BRepTools.hxx>
#include <Geom2d_BezierCurve.hxx>
#include <Geom2d_Curve.hxx>
#include <Geom_BezierCurve.hxx>
#include <Geom_Curve.hxx>
#include <GeomLib.hxx>
#include <gp_Pnt.hxx>
#include <gp_Pnt2d.hxx>
#include <Message_Msg.hxx>
#include <Precision.hxx>
#include <ShapeAnalysis_Edge.hxx>
#include <ShapeBuild_Edge.hxx>
#include <ShapeExtend_WireData.hxx>
#include <ShapeFix_Wire.hxx>
#include <ShapeUpgrade_ConvertCurve2dToBezier.hxx>
#include <ShapeUpgrade_ConvertCurve3dToBezier.hxx>
#include <ShapeUpgrade_ConvertSurfaceToBezierBasis.hxx>
#include <ShapeUpgrade_FaceDivide.hxx>
#include <ShapeUpgrade_FixSmallBezierCurves.hxx>
#include <ShapeUpgrade_ShapeConvertToBezier.hxx>
#include <ShapeUpgrade_WireDivide.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_Shape.hxx>
#include <TopoDS_Vertex.hxx>
//=======================================================================
//function : ShapeUpgrade_ShapeConvertToBezier
//purpose :
//=======================================================================
ShapeUpgrade_ShapeConvertToBezier::ShapeUpgrade_ShapeConvertToBezier()
{
myLevel = 0;
my2dMode = Standard_False;
my3dMode = Standard_False;
mySurfaceMode = Standard_False;
//set spesial flags to true
my3dLineMode = Standard_True;
my3dCircleMode = Standard_True;
my3dConicMode = Standard_True;
myPlaneMode = Standard_True;
myRevolutionMode = Standard_True;
myExtrusionMode = Standard_True;
myBSplineMode = Standard_True;
}
//=======================================================================
//function : ShapeUpgrade_ShapeConvertToBezier
//purpose :
//=======================================================================
ShapeUpgrade_ShapeConvertToBezier::ShapeUpgrade_ShapeConvertToBezier(const TopoDS_Shape& S):
ShapeUpgrade_ShapeDivide(S)
{
myLevel = 0;
my2dMode = Standard_False;
my3dMode = Standard_False;
mySurfaceMode = Standard_False;
//set spesial flags to true
my3dLineMode = Standard_True;
my3dCircleMode = Standard_True;
my3dConicMode = Standard_True;
myPlaneMode = Standard_True;
myRevolutionMode = Standard_True;
myExtrusionMode = Standard_True;
myBSplineMode = Standard_True;
}
//=======================================================================
//function : Perform
//purpose :
//=======================================================================
Standard_Boolean ShapeUpgrade_ShapeConvertToBezier::Perform (const Standard_Boolean newContext)
{
myLevel++;
Standard_Boolean res = Standard_False;
if ( myLevel ==1 ) {
Standard_Boolean isNewContext = newContext;
if ( mySurfaceMode ) {
Standard_Boolean mode2d = my2dMode, mode3d = my3dMode;
my2dMode = my3dMode = Standard_False;
res = ShapeUpgrade_ShapeDivide::Perform(isNewContext);
isNewContext = Standard_False;
myShape = myResult;
my2dMode = mode2d;
my3dMode = mode3d;
}
if ( my2dMode || my3dMode ) {
Standard_Boolean modeS = mySurfaceMode;
mySurfaceMode = Standard_False;
res = ShapeUpgrade_ShapeDivide::Perform(isNewContext);
mySurfaceMode = modeS;
}
}
else res = ShapeUpgrade_ShapeDivide::Perform(newContext);
//pdn Hereafter the fix on GeomLib:SameParameter.
//In order to fix this bug all edges that are based on
//bezier curves (2d or 3d) and have range not equal to [0,1]
//are performed the following sequence:
// 1. Segment on bezier curve
// 2. Changing rande of edge to [0,1]
if(myLevel == 1) {
BRep_Builder B;
ShapeAnalysis_Edge sae;
ShapeBuild_Edge sbe;
Standard_Real preci = Precision::PConfusion();
for(TopExp_Explorer exp(myResult,TopAbs_FACE); exp.More(); exp.Next()) {
TopoDS_Face face = TopoDS::Face(exp.Current());
face.Orientation(TopAbs_FORWARD);
for(TopExp_Explorer exp1(face, TopAbs_WIRE); exp1.More(); exp1.Next()) {
TopoDS_Wire wire= TopoDS::Wire(exp1.Current());
Handle(ShapeFix_Wire) sfw = new ShapeFix_Wire(wire,face,myPrecision);
sfw->FixReorder();
sfw->FixShifted(); // for cylinders.brep
Handle(ShapeExtend_WireData) sewd = sfw->WireData();
for(Standard_Integer i =1; i <= sewd->NbEdges(); i++) {
TopoDS_Edge edge = sewd->Edge(i);
//TopoDS_Edge edge = TopoDS::Edge(exp1.Current());
Handle(Geom_Curve) c3d;
Standard_Real first, last;
TopoDS_Vertex V1,V2;
TopExp::Vertices(edge,V1,V2);
if(sae.Curve3d(edge,c3d,first,last,Standard_False)) {
if(c3d->IsKind(STANDARD_TYPE(Geom_BezierCurve))) {
//B.SameRange(edge, Standard_False);
Handle(Geom_BezierCurve) bezier = Handle(Geom_BezierCurve)::DownCast(c3d);
if(first!= 0 || last !=1) {
if(first > preci || last < 1 - preci) {
bezier->Segment(first,last);
B.UpdateEdge(edge,bezier,0.);
}
sbe.SetRange3d(edge,0,1);
}
if(!bezier.IsNull()) { //gka fix against small edges ; merging ends of 3d curves
gp_Pnt p1 = bezier->Value(first);
gp_Pnt p2 = bezier->Value(last);
gp_Pnt p1v = BRep_Tool::Pnt(V1);
gp_Pnt p2v = BRep_Tool::Pnt(V2);
if(p1.Distance(p1v) > Precision::Confusion())
bezier->SetPole(1,p1v);
if(p2.Distance(p2v) > Precision::Confusion())
bezier->SetPole(bezier->NbPoles(),p2v);
B.UpdateEdge(edge,bezier,0.);
}
}
else if(my2dMode)
B.SameRange(edge, Standard_True);
}
Handle(Geom2d_Curve) c2d,c2drev;
Handle(Geom2d_BezierCurve) bezier,bezierR;
Standard_Boolean isSeam = BRep_Tool::IsClosed ( edge, face );
if(!sae.PCurve(edge,face,c2d,first,last,Standard_False)) continue ;
if(!c2d->IsKind(STANDARD_TYPE(Geom2d_BezierCurve))) continue;
Handle(Geom2d_Curve) newRevCurve,newCurve;
bezier = Handle(Geom2d_BezierCurve)::DownCast(c2d);
if(isSeam) {
TopoDS_Shape aLocalShape = edge.Reversed();
TopoDS_Edge tmpedge = TopoDS::Edge(aLocalShape);
// TopoDS_Edge tmpedge = TopoDS::Edge(edge.Reversed());
if(sae.PCurve(tmpedge,face,c2drev,first,last,Standard_False)) {
if(c2drev->IsKind(STANDARD_TYPE(Geom2d_BezierCurve))) {
bezierR = Handle(Geom2d_BezierCurve)::DownCast(c2drev);
}
}
}
if(first!= 0 || last !=1) {
if(first > preci || last < 1 - preci) {
if(!bezier.IsNull()) {
bezier->Segment(first,last);
newCurve = bezier;
}
else
GeomLib::SameRange(preci, c2d, first, last, 0, 1, newCurve);
if(isSeam) {
if(!bezierR.IsNull()) {
bezierR->Segment(first, last);
newRevCurve = bezierR;
}
else if(!c2drev.IsNull())
GeomLib::SameRange(preci, c2drev, first, last, 0, 1, newRevCurve);
if(edge.Orientation()==TopAbs_FORWARD)
B.UpdateEdge ( edge, newCurve, newRevCurve, face, 0. );
else
B.UpdateEdge ( edge, newRevCurve, newCurve, face, 0. );
}
}
B.Range(edge,face,0,1);
}
TopoDS_Edge edgenext = sewd->Edge((i == sewd->NbEdges() ? 1 : i+1));
Handle(Geom2d_Curve) c2dnext,c2drevnext,newnextCurve;
Standard_Real first2,last2;
Handle(Geom2d_BezierCurve) beziernext,bezierRnext;
if(!sae.PCurve(edgenext,face,c2dnext,first2,last2,Standard_False)) continue ;
if(!c2dnext->IsKind(STANDARD_TYPE(Geom2d_BezierCurve)) ) continue;
beziernext = Handle(Geom2d_BezierCurve)::DownCast(c2dnext);
//Handle(Geom2d_Curve) newRevCurve;
if(isSeam) {
TopoDS_Shape aLocalShape = edgenext.Reversed();
TopoDS_Edge tmpedge = TopoDS::Edge(aLocalShape);
// TopoDS_Edge tmpedge = TopoDS::Edge(edgenext.Reversed());
if(sae.PCurve(tmpedge,face,c2drevnext,first,last,Standard_False)) {
if(c2drevnext->IsKind(STANDARD_TYPE(Geom2d_BezierCurve))) {
bezierRnext = Handle(Geom2d_BezierCurve)::DownCast(c2drevnext);
}
}
}
if(first2!= 0 || last2 !=1) {
if(first2 > preci || last2 < 1 - preci) {
if(!beziernext.IsNull()) {
beziernext->Segment(first2,last2);
newnextCurve = beziernext;
}
else
GeomLib::SameRange(preci, c2dnext, first2, last2, 0, 1, newnextCurve);
if(isSeam) {
if(!bezierRnext.IsNull()) {
bezierRnext->Segment(first2, last2);
newRevCurve = bezierRnext;
}
else if(!c2drevnext.IsNull())
GeomLib::SameRange(preci, c2drevnext, first2, last2, 0, 1, newRevCurve);
if(edge.Orientation()==TopAbs_FORWARD)
B.UpdateEdge ( edgenext, newnextCurve, newRevCurve, face, 0. );
else
B.UpdateEdge ( edgenext, newRevCurve, newnextCurve, face, 0. );
}
}
B.Range(edgenext,face,0,1);
}
if(bezier.IsNull() || beziernext.IsNull() ) continue; //gka fix against small edges ; merging ends of pcurves
Standard_Real f1,l1,f2,l2;
f1 = bezier->FirstParameter();
l1 = bezier->LastParameter();
f2 = beziernext->FirstParameter();
l2 = beziernext->LastParameter();
gp_Pnt2d p2d1 = bezier->Value(f1);
gp_Pnt2d p2d2 = bezier->Value(l1);
gp_Pnt2d p2d1next = beziernext->Value(f2);
gp_Pnt2d p2d2next = beziernext->Value(l2);
if(edge.Orientation() == TopAbs_FORWARD && edgenext.Orientation() == TopAbs_FORWARD) {
if(p2d2.Distance(p2d1next) > Precision::PConfusion()) {
gp_Pnt2d pmid = 0.5*(p2d2.XY() + p2d1next.XY());
// gp_Pnt2d p1 = bezier->Pole(bezier->NbPoles());
// gp_Pnt2d p2 = beziernext->Pole(1);
bezier->SetPole(bezier->NbPoles(),pmid);
beziernext->SetPole(1,pmid);
}
}
if(edge.Orientation() == TopAbs_FORWARD && edgenext.Orientation() == TopAbs_REVERSED) {
if(p2d2.Distance(p2d2next) > Precision::PConfusion()) {
gp_Pnt2d pmid = 0.5*(p2d2.XY() + p2d2next.XY());
// gp_Pnt2d p1 = bezier->Pole(bezier->NbPoles());
// gp_Pnt2d p2 = beziernext->Pole(beziernext->NbPoles());
bezier->SetPole(bezier->NbPoles(),pmid);
beziernext->SetPole(beziernext->NbPoles(),pmid);
}
}
if(edge.Orientation() == TopAbs_REVERSED && edgenext.Orientation() == TopAbs_FORWARD) {
if(p2d1.Distance(p2d1next) > Precision::PConfusion()) {
gp_Pnt2d pmid = 0.5*(p2d1.XY() + p2d1next.XY());
// gp_Pnt2d p1 = bezier->Pole(1);
// gp_Pnt2d p2 = beziernext->Pole(1);
bezier->SetPole(1,pmid);
beziernext->SetPole(1,pmid);
}
}
if(edge.Orientation() == TopAbs_REVERSED && edgenext.Orientation() == TopAbs_REVERSED) {
if(p2d1.Distance(p2d2next) > Precision::PConfusion()) {
gp_Pnt2d pmid = 0.5*(p2d1.XY() + p2d2next.XY());
// gp_Pnt2d p1 = bezier->Pole(1);
// gp_Pnt2d p2 = beziernext->Pole(beziernext->NbPoles());
bezier->SetPole(1,pmid);
beziernext->SetPole(beziernext->NbPoles(),pmid);
}
}
}
BRepTools::Update(face);
}
}
}
myLevel--;
return res;
}
//=======================================================================
//function : GetSplitFaceTool
//purpose :
//=======================================================================
Handle(ShapeUpgrade_FaceDivide) ShapeUpgrade_ShapeConvertToBezier::GetSplitFaceTool() const
{
Handle(ShapeUpgrade_FaceDivide) tool = new ShapeUpgrade_FaceDivide;
Handle(ShapeUpgrade_WireDivide) wtool = new ShapeUpgrade_WireDivide;
if(my3dMode) {
Handle(ShapeUpgrade_ConvertCurve3dToBezier) curve3dConverter = new ShapeUpgrade_ConvertCurve3dToBezier;
curve3dConverter->SetLineMode(my3dLineMode);
curve3dConverter->SetCircleMode(my3dCircleMode);
curve3dConverter->SetConicMode(my3dConicMode);
wtool->SetSplitCurve3dTool(curve3dConverter);
}
if(my2dMode)
wtool->SetSplitCurve2dTool(new ShapeUpgrade_ConvertCurve2dToBezier);
wtool->SetEdgeMode(myEdgeMode);
Handle(ShapeUpgrade_FixSmallBezierCurves) FixSmallBezierCurvesTool = new ShapeUpgrade_FixSmallBezierCurves;
wtool->SetFixSmallCurveTool(FixSmallBezierCurvesTool);
tool->SetWireDivideTool(wtool);
if(mySurfaceMode) {
Handle(ShapeUpgrade_ConvertSurfaceToBezierBasis) stool = new ShapeUpgrade_ConvertSurfaceToBezierBasis;
stool->SetPlaneMode(myPlaneMode);
stool->SetRevolutionMode(myRevolutionMode);
stool->SetExtrusionMode(myExtrusionMode);
stool->SetBSplineMode(myBSplineMode);
tool->SetSplitSurfaceTool(stool);
}
return tool;
}
Message_Msg ShapeUpgrade_ShapeConvertToBezier::GetFaceMsg() const
{
return "ShapeDivide.FaceConvertToBezier.MSG0";
}
Message_Msg ShapeUpgrade_ShapeConvertToBezier::GetWireMsg() const
{
return "ShapeDivide.WireConvertToBezier.MSG0";
}
Message_Msg ShapeUpgrade_ShapeConvertToBezier::GetEdgeMsg() const
{
return "ShapeDivide.EdgeConvertToBezier.MSG0";
}
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