[occt.git] / src / ShapeUpgrade / ShapeUpgrade_ShapeConvertToBezier.cxx

// 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 <ShapeUpgrade_ShapeConvertToBezier.ixx>
#include <ShapeUpgrade_WireDivide.hxx>
#include <ShapeUpgrade_ConvertCurve3dToBezier.hxx>
#include <ShapeUpgrade_ConvertCurve2dToBezier.hxx>
#include <TopExp_Explorer.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS.hxx>
#include <BRep_Builder.hxx>
#include <ShapeAnalysis_Edge.hxx>
#include <ShapeBuild_Edge.hxx>
#include <Geom_Curve.hxx>
#include <Geom_BezierCurve.hxx>
#include <Precision.hxx>
#include <Geom2d_Curve.hxx>
#include <Geom2d_BezierCurve.hxx>
#include <BRep_Tool.hxx>
#include <GeomLib.hxx>
#include <TopoDS_Edge.hxx>
#include <ShapeUpgrade_ConvertSurfaceToBezierBasis.hxx>
#include <TopExp.hxx>
#include <TopExp.hxx>
#include <gp_Pnt2d.hxx>
#include <gp_Pnt.hxx>
#include <ShapeFix_Wire.hxx>
#include <ShapeExtend_WireData.hxx>
#include <TopoDS_Vertex.hxx>
#include <ShapeUpgrade_FixSmallBezierCurves.hxx>
#include <ShapeUpgrade_FixSmallBezierCurves.hxx>
#include <ShapeUpgrade_FixSmallBezierCurves.hxx>
#include <BRepTools.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;
}
Commit	Line	Data
b311480e	1	// Created on: 1999-05-14
	2	// Created by: data exchange team
	3	// Copyright (c) 1999-1999 Matra Datavision
973c2be1	4	// Copyright (c) 1999-2014 OPEN CASCADE SAS
b311480e	5	//
973c2be1	6	// This file is part of Open CASCADE Technology software library.
b311480e	7	//
d5f74e42	8	// This library is free software; you can redistribute it and/or modify it under
d5f74e42	9	// the terms of the GNU Lesser General Public License version 2.1 as published
973c2be1	10	// by the Free Software Foundation, with special exception defined in the file
	11	// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
	12	// distribution for complete text of the license and disclaimer of any warranty.
b311480e	13	//
973c2be1	14	// Alternatively, this file may be used under the terms of Open CASCADE
973c2be1	15	// commercial license or contractual agreement.
b311480e	16
7fd59977	17	// 15.06 2000 gka fix against small edges ; merging ends pcurves and 3d curves
7fd59977	18
7fd59977	19
	20	#include <ShapeUpgrade_ShapeConvertToBezier.ixx>
	21	#include <ShapeUpgrade_WireDivide.hxx>
	22	#include <ShapeUpgrade_ConvertCurve3dToBezier.hxx>
	23	#include <ShapeUpgrade_ConvertCurve2dToBezier.hxx>
	24	#include <TopExp_Explorer.hxx>
	25	#include <TopoDS_Face.hxx>
	26	#include <TopoDS.hxx>
	27	#include <BRep_Builder.hxx>
	28	#include <ShapeAnalysis_Edge.hxx>
	29	#include <ShapeBuild_Edge.hxx>
	30	#include <Geom_Curve.hxx>
	31	#include <Geom_BezierCurve.hxx>
	32	#include <Precision.hxx>
	33	#include <Geom2d_Curve.hxx>
	34	#include <Geom2d_BezierCurve.hxx>
	35	#include <BRep_Tool.hxx>
	36	#include <GeomLib.hxx>
	37	#include <TopoDS_Edge.hxx>
	38	#include <ShapeUpgrade_ConvertSurfaceToBezierBasis.hxx>
	39	#include <TopExp.hxx>
	40	#include <TopExp.hxx>
	41	#include <gp_Pnt2d.hxx>
	42	#include <gp_Pnt.hxx>
	43	#include <ShapeFix_Wire.hxx>
	44	#include <ShapeExtend_WireData.hxx>
	45	#include <TopoDS_Vertex.hxx>
	46	#include <ShapeUpgrade_FixSmallBezierCurves.hxx>
	47	#include <ShapeUpgrade_FixSmallBezierCurves.hxx>
	48	#include <ShapeUpgrade_FixSmallBezierCurves.hxx>
	49	#include <BRepTools.hxx>
	50
	51	//=======================================================================
	52	//function : ShapeUpgrade_ShapeConvertToBezier
	53	//purpose :
	54	//=======================================================================
	55
	56	ShapeUpgrade_ShapeConvertToBezier::ShapeUpgrade_ShapeConvertToBezier()
	57	{
	58	myLevel = 0;
	59	my2dMode = Standard_False;
	60	my3dMode = Standard_False;
	61	mySurfaceMode = Standard_False;
	62	//set spesial flags to true
	63	my3dLineMode = Standard_True;
	64	my3dCircleMode = Standard_True;
	65	my3dConicMode = Standard_True;
	66	myPlaneMode = Standard_True;
	67	myRevolutionMode = Standard_True;
	68	myExtrusionMode = Standard_True;
	69	myBSplineMode = Standard_True;
	70	}
	71
	72	//=======================================================================
	73	//function : ShapeUpgrade_ShapeConvertToBezier
	74	//purpose :
	75	//=======================================================================
	76
	77	ShapeUpgrade_ShapeConvertToBezier::ShapeUpgrade_ShapeConvertToBezier(const TopoDS_Shape& S):
	78	ShapeUpgrade_ShapeDivide(S)
	79	{
	80	myLevel = 0;
	81	my2dMode = Standard_False;
	82	my3dMode = Standard_False;
83	mySurfaceMode = Standard_False;
84	//set spesial flags to true
85	my3dLineMode = Standard_True;
86	my3dCircleMode = Standard_True;
87	my3dConicMode = Standard_True;
88	myPlaneMode = Standard_True;
89	myRevolutionMode = Standard_True;
90	myExtrusionMode = Standard_True;
91	myBSplineMode = Standard_True;
92	}
93
94	//=======================================================================
95	//function : Perform
96	//purpose :
97	//=======================================================================
98
99	Standard_Boolean ShapeUpgrade_ShapeConvertToBezier::Perform (const Standard_Boolean newContext)
100	{
101	myLevel++;
102
103	Standard_Boolean res = Standard_False;
104	if ( myLevel ==1 ) {
105	Standard_Boolean isNewContext = newContext;
106	if ( mySurfaceMode ) {
107	Standard_Boolean mode2d = my2dMode, mode3d = my3dMode;
108	my2dMode = my3dMode = Standard_False;
109	res = ShapeUpgrade_ShapeDivide::Perform(isNewContext);
110	isNewContext = Standard_False;
111	myShape = myResult;
112	my2dMode = mode2d;
113	my3dMode = mode3d;
114	}
115	if ( my2dMode \|\| my3dMode ) {
116	Standard_Boolean modeS = mySurfaceMode;
117	mySurfaceMode = Standard_False;
118	res = ShapeUpgrade_ShapeDivide::Perform(isNewContext);
119	mySurfaceMode = modeS;
120	}
121	}
122	else res = ShapeUpgrade_ShapeDivide::Perform(newContext);
123	//pdn Hereafter the fix on GeomLib:SameParameter.
124	//In order to fix this bug all edges that are based on
125	//bezier curves (2d or 3d) and have range not equal to [0,1]
126	//are performed the following sequence:
127	// 1. Segment on bezier curve
128	// 2. Changing rande of edge to [0,1]
129	if(myLevel == 1) {
130	BRep_Builder B;
131	ShapeAnalysis_Edge sae;
132	ShapeBuild_Edge sbe;
133	Standard_Real preci = Precision::PConfusion();
134	for(TopExp_Explorer exp(myResult,TopAbs_FACE); exp.More(); exp.Next()) {
135	TopoDS_Face face = TopoDS::Face(exp.Current());
136	face.Orientation(TopAbs_FORWARD);
137	for(TopExp_Explorer exp1(face, TopAbs_WIRE); exp1.More(); exp1.Next()) {
138	TopoDS_Wire wire= TopoDS::Wire(exp1.Current());
139	Handle(ShapeFix_Wire) sfw = new ShapeFix_Wire(wire,face,myPrecision);
140	sfw->FixReorder();
141	sfw->FixShifted(); // for cylinders.brep
142	Handle(ShapeExtend_WireData) sewd = sfw->WireData();
143	for(Standard_Integer i =1; i <= sewd->NbEdges(); i++) {
144	TopoDS_Edge edge = sewd->Edge(i);
145	//TopoDS_Edge edge = TopoDS::Edge(exp1.Current());
146	Handle(Geom_Curve) c3d;
147	Standard_Real first, last;
148	TopoDS_Vertex V1,V2;
149	TopExp::Vertices(edge,V1,V2);
150	if(sae.Curve3d(edge,c3d,first,last,Standard_False)) {
151	if(c3d->IsKind(STANDARD_TYPE(Geom_BezierCurve))) {
152	//B.SameRange(edge, Standard_False);
153	Handle(Geom_BezierCurve) bezier = Handle(Geom_BezierCurve)::DownCast(c3d);
154	if(first!= 0 \|\| last !=1) {
155	if(first > preci \|\| last < 1 - preci) {
156	bezier->Segment(first,last);
157	B.UpdateEdge(edge,bezier,0.);
158	}
159	sbe.SetRange3d(edge,0,1);
160	}
161	if(!bezier.IsNull()) { //gka fix against small edges ; merging ends of 3d curves
162	gp_Pnt p1 = bezier->Value(first);
163	gp_Pnt p2 = bezier->Value(last);
164	gp_Pnt p1v = BRep_Tool::Pnt(V1);
165	gp_Pnt p2v = BRep_Tool::Pnt(V2);
166	if(p1.Distance(p1v) > Precision::Confusion())
167	bezier->SetPole(1,p1v);
168	if(p2.Distance(p2v) > Precision::Confusion())
169	bezier->SetPole(bezier->NbPoles(),p2v);
170	B.UpdateEdge(edge,bezier,0.);
171	}
172	}
173	else if(my2dMode)
174	B.SameRange(edge, Standard_True);
175	}
176	Handle(Geom2d_Curve) c2d,c2drev;
177	Handle(Geom2d_BezierCurve) bezier,bezierR;
178	Standard_Boolean isSeam = BRep_Tool::IsClosed ( edge, face );
179	if(!sae.PCurve(edge,face,c2d,first,last,Standard_False)) continue ;
180	if(!c2d->IsKind(STANDARD_TYPE(Geom2d_BezierCurve))) continue;
181	Handle(Geom2d_Curve) newRevCurve,newCurve;
182	bezier = Handle(Geom2d_BezierCurve)::DownCast(c2d);
183	if(isSeam) {
184	TopoDS_Shape aLocalShape = edge.Reversed();
185	TopoDS_Edge tmpedge = TopoDS::Edge(aLocalShape);
186	// TopoDS_Edge tmpedge = TopoDS::Edge(edge.Reversed());
187	if(sae.PCurve(tmpedge,face,c2drev,first,last,Standard_False)) {
188	if(c2drev->IsKind(STANDARD_TYPE(Geom2d_BezierCurve))) {
189	bezierR = Handle(Geom2d_BezierCurve)::DownCast(c2drev);
190	}
191	}
192	}
193	if(first!= 0 \|\| last !=1) {
194	if(first > preci \|\| last < 1 - preci) {
195	if(!bezier.IsNull()) {
196	bezier->Segment(first,last);
197	newCurve = bezier;
198	}
199	else
200	GeomLib::SameRange(preci, c2d, first, last, 0, 1, newCurve);
201	if(isSeam) {
202	if(!bezierR.IsNull()) {
203	bezierR->Segment(first, last);
204	newRevCurve = bezierR;
205	}
206	else if(!c2drev.IsNull())
207	GeomLib::SameRange(preci, c2drev, first, last, 0, 1, newRevCurve);
208	if(edge.Orientation()==TopAbs_FORWARD)
209	B.UpdateEdge ( edge, newCurve, newRevCurve, face, 0. );
210	else
211	B.UpdateEdge ( edge, newRevCurve, newCurve, face, 0. );
212	}
213	}
214	B.Range(edge,face,0,1);
215	}
216
217
218	TopoDS_Edge edgenext = sewd->Edge((i == sewd->NbEdges() ? 1 : i+1));
219	Handle(Geom2d_Curve) c2dnext,c2drevnext,newnextCurve;
220	Standard_Real first2,last2;
221	Handle(Geom2d_BezierCurve) beziernext,bezierRnext;
222	if(!sae.PCurve(edgenext,face,c2dnext,first2,last2,Standard_False)) continue ;
223	if(!c2dnext->IsKind(STANDARD_TYPE(Geom2d_BezierCurve)) ) continue;
224	beziernext = Handle(Geom2d_BezierCurve)::DownCast(c2dnext);
225	//Handle(Geom2d_Curve) newRevCurve;
226	if(isSeam) {
227	TopoDS_Shape aLocalShape = edgenext.Reversed();
228	TopoDS_Edge tmpedge = TopoDS::Edge(aLocalShape);
229	// TopoDS_Edge tmpedge = TopoDS::Edge(edgenext.Reversed());
230	if(sae.PCurve(tmpedge,face,c2drevnext,first,last,Standard_False)) {
231	if(c2drevnext->IsKind(STANDARD_TYPE(Geom2d_BezierCurve))) {
232	bezierRnext = Handle(Geom2d_BezierCurve)::DownCast(c2drevnext);
233	}
234	}
235	}
236	if(first2!= 0 \|\| last2 !=1) {
237	if(first2 > preci \|\| last2 < 1 - preci) {
238	if(!beziernext.IsNull()) {
239	beziernext->Segment(first2,last2);
240	newnextCurve = beziernext;
241	}
242	else
243	GeomLib::SameRange(preci, c2dnext, first2, last2, 0, 1, newnextCurve);
244	if(isSeam) {
245	if(!bezierRnext.IsNull()) {
246	bezierRnext->Segment(first2, last2);
247	newRevCurve = bezierRnext;
248	}
249	else if(!c2drevnext.IsNull())
250	GeomLib::SameRange(preci, c2drevnext, first2, last2, 0, 1, newRevCurve);
251	if(edge.Orientation()==TopAbs_FORWARD)
252	B.UpdateEdge ( edgenext, newnextCurve, newRevCurve, face, 0. );
253	else
254	B.UpdateEdge ( edgenext, newRevCurve, newnextCurve, face, 0. );
255	}
256	}
257	B.Range(edgenext,face,0,1);
258	}
259
260	if(bezier.IsNull() \|\| beziernext.IsNull() ) continue; //gka fix against small edges ; merging ends of pcurves
261	Standard_Real f1,l1,f2,l2;
262	f1 = bezier->FirstParameter();
263	l1 = bezier->LastParameter();
264	f2 = beziernext->FirstParameter();
265	l2 = beziernext->LastParameter();
266	gp_Pnt2d p2d1 = bezier->Value(f1);
267	gp_Pnt2d p2d2 = bezier->Value(l1);
268	gp_Pnt2d p2d1next = beziernext->Value(f2);
269	gp_Pnt2d p2d2next = beziernext->Value(l2);
270	if(edge.Orientation() == TopAbs_FORWARD && edgenext.Orientation() == TopAbs_FORWARD) {
271	if(p2d2.Distance(p2d1next) > Precision::PConfusion()) {
272	gp_Pnt2d pmid = 0.5*(p2d2.XY() + p2d1next.XY());
273	// gp_Pnt2d p1 = bezier->Pole(bezier->NbPoles());
274	// gp_Pnt2d p2 = beziernext->Pole(1);
275	bezier->SetPole(bezier->NbPoles(),pmid);
276	beziernext->SetPole(1,pmid);
277	}
278	}
279	if(edge.Orientation() == TopAbs_FORWARD && edgenext.Orientation() == TopAbs_REVERSED) {
280	if(p2d2.Distance(p2d2next) > Precision::PConfusion()) {
281	gp_Pnt2d pmid = 0.5*(p2d2.XY() + p2d2next.XY());
282	// gp_Pnt2d p1 = bezier->Pole(bezier->NbPoles());
283	// gp_Pnt2d p2 = beziernext->Pole(beziernext->NbPoles());
284	bezier->SetPole(bezier->NbPoles(),pmid);
285	beziernext->SetPole(beziernext->NbPoles(),pmid);
286	}
287	}
288	if(edge.Orientation() == TopAbs_REVERSED && edgenext.Orientation() == TopAbs_FORWARD) {
289	if(p2d1.Distance(p2d1next) > Precision::PConfusion()) {
290	gp_Pnt2d pmid = 0.5*(p2d1.XY() + p2d1next.XY());
291	// gp_Pnt2d p1 = bezier->Pole(1);
292	// gp_Pnt2d p2 = beziernext->Pole(1);
293	bezier->SetPole(1,pmid);
294	beziernext->SetPole(1,pmid);
295	}
296	}
297	if(edge.Orientation() == TopAbs_REVERSED && edgenext.Orientation() == TopAbs_REVERSED) {
298	if(p2d1.Distance(p2d2next) > Precision::PConfusion()) {
299	gp_Pnt2d pmid = 0.5*(p2d1.XY() + p2d2next.XY());
300	// gp_Pnt2d p1 = bezier->Pole(1);
301	// gp_Pnt2d p2 = beziernext->Pole(beziernext->NbPoles());
302	bezier->SetPole(1,pmid);
303	beziernext->SetPole(beziernext->NbPoles(),pmid);
304	}
305	}
306
307	}
308	BRepTools::Update(face);
309	}
310	}
311
312	}
313
314	myLevel--;
315
316	return res;
317	}
318
319	//=======================================================================
320	//function : GetSplitFaceTool
321	//purpose :
322	//=======================================================================
323
324	Handle(ShapeUpgrade_FaceDivide) ShapeUpgrade_ShapeConvertToBezier::GetSplitFaceTool() const
325	{
326	Handle(ShapeUpgrade_FaceDivide) tool = new ShapeUpgrade_FaceDivide;
327	Handle(ShapeUpgrade_WireDivide) wtool = new ShapeUpgrade_WireDivide;
328	if(my3dMode) {
329	Handle(ShapeUpgrade_ConvertCurve3dToBezier) curve3dConverter = new ShapeUpgrade_ConvertCurve3dToBezier;
330	curve3dConverter->SetLineMode(my3dLineMode);
331	curve3dConverter->SetCircleMode(my3dCircleMode);
332	curve3dConverter->SetConicMode(my3dConicMode);
333	wtool->SetSplitCurve3dTool(curve3dConverter);
334	}
335	if(my2dMode)
336	wtool->SetSplitCurve2dTool(new ShapeUpgrade_ConvertCurve2dToBezier);
337	wtool->SetEdgeMode(myEdgeMode);
338	Handle(ShapeUpgrade_FixSmallBezierCurves) FixSmallBezierCurvesTool = new ShapeUpgrade_FixSmallBezierCurves;
339	wtool->SetFixSmallCurveTool(FixSmallBezierCurvesTool);
340	tool->SetWireDivideTool(wtool);
341	if(mySurfaceMode) {
342	Handle(ShapeUpgrade_ConvertSurfaceToBezierBasis) stool = new ShapeUpgrade_ConvertSurfaceToBezierBasis;
343	stool->SetPlaneMode(myPlaneMode);
344	stool->SetRevolutionMode(myRevolutionMode);
345	stool->SetExtrusionMode(myExtrusionMode);
346	stool->SetBSplineMode(myBSplineMode);
347	tool->SetSplitSurfaceTool(stool);
348	}
349	return tool;
350	}
351