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geom/src/GEOMImpl/GEOMImpl_ShapeDriver.cxx

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// Copyright (C) 2007-2010 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
#include <GEOMImpl_ShapeDriver.hxx>
#include <GEOMImpl_IShapes.hxx>
#include <GEOMImpl_Types.hxx>
#include <GEOMImpl_Block6Explorer.hxx>
#include <GEOM_Function.hxx>
// OCCT Includes
#include <ShapeFix_Wire.hxx>
#include <ShapeFix_Edge.hxx>
#include <ShapeFix_Shape.hxx>
#include <BRep_Tool.hxx>
#include <BRep_Builder.hxx>
#include <BRepAlgo_FaceRestrictor.hxx>
#include <BRepBuilderAPI_Sewing.hxx>
#include <BRepBuilderAPI_Copy.hxx>
#include <BRepCheck.hxx>
#include <BRepCheck_Analyzer.hxx>
#include <BRepCheck_Shell.hxx>
#include <BRepClass3d_SolidClassifier.hxx>
#include <BRepBuilderAPI_MakeWire.hxx>
#include <BRepBuilderAPI_Sewing.hxx>
#include <BRepLib.hxx>
#include <BRepLib_MakeEdge.hxx>
#include <BRepTools_WireExplorer.hxx>
#include <BRepAdaptor_Curve.hxx>
#include <ShapeAnalysis_FreeBounds.hxx>
#include <ElCLib.hxx>
#include <TopAbs.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Shape.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Wire.hxx>
#include <TopoDS_Shell.hxx>
#include <TopoDS_Solid.hxx>
#include <TopoDS_Compound.hxx>
#include <TopoDS_Iterator.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopTools_MapOfShape.hxx>
#include <TopTools_HSequenceOfShape.hxx>
#include <TColStd_SequenceOfReal.hxx>
#include <TColStd_HSequenceOfTransient.hxx>
#include <TColStd_Array1OfReal.hxx>
#include <TColGeom_SequenceOfCurve.hxx>
#include <TColGeom_Array1OfBSplineCurve.hxx>
#include <TColGeom_HArray1OfBSplineCurve.hxx>
#include <GeomAbs_CurveType.hxx>
#include <Geom_TrimmedCurve.hxx>
#include <GeomConvert_CompCurveToBSplineCurve.hxx>
#include <GeomConvert.hxx>
#include <GeomLProp.hxx>
#include <Precision.hxx>
#include <Standard_NullObject.hxx>
#include <Standard_TypeMismatch.hxx>
#include <Standard_ConstructionError.hxx>
//=======================================================================
//function : GetID
//purpose :
//=======================================================================
const Standard_GUID& GEOMImpl_ShapeDriver::GetID()
{
static Standard_GUID aShapeDriver("FF1BBB54-5D14-4df2-980B-3A668264EA16");
return aShapeDriver;
}
//=======================================================================
//function : GEOMImpl_ShapeDriver
//purpose :
//=======================================================================
GEOMImpl_ShapeDriver::GEOMImpl_ShapeDriver()
{
}
//=======================================================================
//function : Execute
//purpose :
//=======================================================================
Standard_Integer GEOMImpl_ShapeDriver::Execute(TFunction_Logbook& log) const
{
if (Label().IsNull()) return 0;
Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
GEOMImpl_IShapes aCI (aFunction);
Standard_Integer aType = aFunction->GetType();
TopoDS_Shape aShape;
BRep_Builder B;
if (aType == WIRE_EDGES) {
Handle(TColStd_HSequenceOfTransient) aShapes = aCI.GetShapes();
TopoDS_Wire aWire;
B.MakeWire(aWire);
// add edges
for (unsigned int ind = 1; ind <= aShapes->Length(); ind++) {
Handle(GEOM_Function) aRefShape = Handle(GEOM_Function)::DownCast(aShapes->Value(ind));
TopoDS_Shape aShape_i = aRefShape->GetValue();
if (aShape_i.IsNull()) {
Standard_NullObject::Raise("Shape for wire construction is null");
}
if (aShape_i.ShapeType() == TopAbs_EDGE || aShape_i.ShapeType() == TopAbs_WIRE) {
TopExp_Explorer exp (aShape_i, TopAbs_EDGE);
for (; exp.More(); exp.Next())
B.Add(aWire, TopoDS::Edge(exp.Current()));
} else {
Standard_TypeMismatch::Raise
("Shape for wire construction is neither an edge nor a wire");
}
}
// fix edges order
Handle(ShapeFix_Wire) aFW = new ShapeFix_Wire;
aFW->Load(aWire);
aFW->FixReorder();
if (aFW->StatusReorder(ShapeExtend_FAIL1)) {
Standard_ConstructionError::Raise("Wire construction failed: several loops detected");
} else if (aFW->StatusReorder(ShapeExtend_FAIL)) {
Standard_ConstructionError::Raise("Wire construction failed");
} else {
}
// IMP 0019766: Building a Wire from unconnected edges by introducing a tolerance
Standard_Real aTolerance = aCI.GetTolerance();
if (aTolerance < Precision::Confusion())
aTolerance = Precision::Confusion();
aFW->ClosedWireMode() = Standard_False;
aFW->FixConnected(aTolerance);
if (aFW->StatusConnected(ShapeExtend_FAIL)) {
Standard_ConstructionError::Raise("Wire construction failed: cannot build connected wire");
}
// IMP 0019766
if (aFW->StatusConnected(ShapeExtend_DONE3)) {
// Confused with <prec> but not Analyzer.Precision(), set the same
aFW->FixGapsByRangesMode() = Standard_True;
if (aFW->FixGaps3d()) {
Handle(ShapeExtend_WireData) sbwd = aFW->WireData();
Handle(ShapeFix_Edge) aFe = new ShapeFix_Edge;
for (Standard_Integer iedge = 1; iedge <= sbwd->NbEdges(); iedge++) {
TopoDS_Edge aEdge = TopoDS::Edge(sbwd->Edge(iedge));
aFe->FixVertexTolerance(aEdge);
aFe->FixSameParameter(aEdge);
}
}
else if (aFW->StatusGaps3d(ShapeExtend_FAIL)) {
Standard_ConstructionError::Raise("Wire construction failed: cannot fix 3d gaps");
}
}
aShape = aFW->WireAPIMake();
}
else if (aType == FACE_WIRE) {
Handle(GEOM_Function) aRefBase = aCI.GetBase();
TopoDS_Shape aShapeBase = aRefBase->GetValue();
if (aShapeBase.IsNull()) Standard_NullObject::Raise("Argument Shape is null");
TopoDS_Wire W;
if (aShapeBase.ShapeType() == TopAbs_WIRE) {
W = TopoDS::Wire(aShapeBase);
// check the wire is closed
TopoDS_Vertex aV1, aV2;
TopExp::Vertices(W, aV1, aV2);
if ( !aV1.IsNull() && !aV2.IsNull() && aV1.IsSame(aV2) )
aShapeBase.Closed(true);
else
Standard_NullObject::Raise
("Shape for face construction is not closed");
}
else if (aShapeBase.ShapeType() == TopAbs_EDGE && aShapeBase.Closed()) {
BRepBuilderAPI_MakeWire MW;
MW.Add(TopoDS::Edge(aShapeBase));
if (!MW.IsDone()) {
Standard_ConstructionError::Raise("Wire construction failed");
}
W = MW;
}
else {
Standard_NullObject::Raise
("Shape for face construction is neither a wire nor a closed edge");
}
GEOMImpl_Block6Explorer::MakeFace(W, aCI.GetIsPlanar(), aShape);
if (aShape.IsNull()) {
Standard_ConstructionError::Raise("Face construction failed");
}
}
else if (aType == FACE_WIRES) {
// Try to build a face from a set of wires and edges
int ind;
Handle(TColStd_HSequenceOfTransient) aShapes = aCI.GetShapes();
int nbshapes = aShapes->Length();
if (nbshapes < 1) {
Standard_ConstructionError::Raise("No wires or edges given");
}
// 1. Extract all edges from the given arguments
TopTools_MapOfShape aMapEdges;
Handle(TopTools_HSequenceOfShape) aSeqEdgesIn = new TopTools_HSequenceOfShape;
for (ind = 1; ind <= nbshapes; ind++) {
Handle(GEOM_Function) aRefSh_i = Handle(GEOM_Function)::DownCast(aShapes->Value(ind));
TopoDS_Shape aSh_i = aRefSh_i->GetValue();
TopExp_Explorer anExpE_i (aSh_i, TopAbs_EDGE);
for (; anExpE_i.More(); anExpE_i.Next()) {
if (aMapEdges.Add(anExpE_i.Current())) {
aSeqEdgesIn->Append(anExpE_i.Current());
}
}
}
// 2. Connect edges to wires of maximum length
Handle(TopTools_HSequenceOfShape) aSeqWiresOut;
ShapeAnalysis_FreeBounds::ConnectEdgesToWires(aSeqEdgesIn, Precision::Confusion(),
/*shared*/Standard_False, aSeqWiresOut);
// 3. Separate closed wires
Handle(TopTools_HSequenceOfShape) aSeqClosedWires = new TopTools_HSequenceOfShape;
Handle(TopTools_HSequenceOfShape) aSeqOpenWires = new TopTools_HSequenceOfShape;
for (ind = 1; ind <= aSeqWiresOut->Length(); ind++) {
if (aSeqWiresOut->Value(ind).Closed())
aSeqClosedWires->Append(aSeqWiresOut->Value(ind));
else
aSeqOpenWires->Append(aSeqWiresOut->Value(ind));
}
if (aSeqClosedWires->Length() < 1) {
Standard_ConstructionError::Raise
("There is no closed contour can be built from the given arguments");
}
// 4. Build a face / list of faces from all the obtained closed wires
// 4.a. Basic face
TopoDS_Shape aFFace;
TopoDS_Wire aW1 = TopoDS::Wire(aSeqClosedWires->Value(1));
GEOMImpl_Block6Explorer::MakeFace(aW1, aCI.GetIsPlanar(), aFFace);
if (aFFace.IsNull()) {
Standard_ConstructionError::Raise("Face construction failed");
}
// 4.b. Add other wires
if (aSeqClosedWires->Length() == 1) {
aShape = aFFace;
}
else {
TopoDS_Compound C;
BRep_Builder aBuilder;
aBuilder.MakeCompound(C);
BRepAlgo_FaceRestrictor FR;
TopAbs_Orientation OriF = aFFace.Orientation();
TopoDS_Shape aLocalS = aFFace.Oriented(TopAbs_FORWARD);
FR.Init(TopoDS::Face(aLocalS), Standard_False, Standard_True);
for (ind = 1; ind <= aSeqClosedWires->Length(); ind++) {
TopoDS_Wire aW = TopoDS::Wire(aSeqClosedWires->Value(ind));
FR.Add(aW);
}
FR.Perform();
if (FR.IsDone()) {
int k = 0;
TopoDS_Shape aFace;
for (; FR.More(); FR.Next()) {
aFace = FR.Current().Oriented(OriF);
aBuilder.Add(C, aFace);
k++;
}
if (k == 1) {
aShape = aFace;
} else {
aShape = C;
}
}
}
// 5. Add all open wires to the result
if (aSeqOpenWires->Length() > 0) {
//Standard_ConstructionError::Raise("There are some open wires");
TopoDS_Compound C;
BRep_Builder aBuilder;
if (aSeqClosedWires->Length() == 1) {
aBuilder.MakeCompound(C);
aBuilder.Add(C, aShape);
}
else {
C = TopoDS::Compound(aShape);
}
for (ind = 1; ind <= aSeqOpenWires->Length(); ind++) {
aBuilder.Add(C, aSeqOpenWires->Value(ind));
}
aShape = C;
}
}
else if (aType == SHELL_FACES) {
Handle(TColStd_HSequenceOfTransient) aShapes = aCI.GetShapes();
unsigned int ind, nbshapes = aShapes->Length();
// add faces
BRepBuilderAPI_Sewing aSewing(Precision::Confusion()*10.0);
for (ind = 1; ind <= nbshapes; ind++) {
Handle(GEOM_Function) aRefShape = Handle(GEOM_Function)::DownCast(aShapes->Value(ind));
TopoDS_Shape aShape_i = aRefShape->GetValue();
if (aShape_i.IsNull()) {
Standard_NullObject::Raise("Face for shell construction is null");
}
aSewing.Add(aShape_i);
}
aSewing.Perform();
TopoDS_Shape sh = aSewing.SewedShape();
if( sh.ShapeType()==TopAbs_FACE && nbshapes==1 ) {
// case for creation of shell from one face - PAL12722 (skl 26.06.2006)
TopoDS_Shell ss;
B.MakeShell(ss);
B.Add(ss,sh);
aShape = ss;
}
else {
//TopExp_Explorer exp (aSewing.SewedShape(), TopAbs_SHELL);
TopExp_Explorer exp (sh, TopAbs_SHELL);
Standard_Integer ish = 0;
for (; exp.More(); exp.Next()) {
aShape = exp.Current();
ish++;
}
if (ish != 1)
aShape = aSewing.SewedShape();
}
}
else if (aType == SOLID_SHELL) {
Handle(GEOM_Function) aRefShell = aCI.GetBase();
TopoDS_Shape aShapeShell = aRefShell->GetValue();
if (aShapeShell.IsNull() || aShapeShell.ShapeType() != TopAbs_SHELL) {
Standard_NullObject::Raise("Shape for solid construction is null or not a shell");
}
BRepCheck_Shell chkShell(TopoDS::Shell(aShapeShell));
if(chkShell.Closed() == BRepCheck_NotClosed) return 0;
TopoDS_Solid Sol;
B.MakeSolid(Sol);
B.Add(Sol, aShapeShell);
BRepClass3d_SolidClassifier SC (Sol);
SC.PerformInfinitePoint(Precision::Confusion());
if (SC.State() == TopAbs_IN) {
B.MakeSolid(Sol);
B.Add(Sol, aShapeShell.Reversed());
}
aShape = Sol;
}
else if (aType == SOLID_SHELLS) {
Handle(TColStd_HSequenceOfTransient) aShapes = aCI.GetShapes();
unsigned int ind, nbshapes = aShapes->Length();
Standard_Integer ish = 0;
TopoDS_Solid Sol;
B.MakeSolid(Sol);
// add shapes
for (ind = 1; ind <= nbshapes; ind++) {
Handle(GEOM_Function) aRefShape = Handle(GEOM_Function)::DownCast(aShapes->Value(ind));
TopoDS_Shape aShapeShell = aRefShape->GetValue();
if (aShapeShell.IsNull()) {
Standard_NullObject::Raise("Shell for solid construction is null");
}
if (aShapeShell.ShapeType() == TopAbs_SHELL) {
B.Add(Sol, aShapeShell);
ish++;
}
}
if ( ish == 0 ) return 0;
BRepClass3d_SolidClassifier SC (Sol);
SC.PerformInfinitePoint(Precision::Confusion());
if (SC.State() == TopAbs_IN)
aShape = Sol.Reversed();
else
aShape = Sol;
}
else if (aType == COMPOUND_SHAPES) {
Handle(TColStd_HSequenceOfTransient) aShapes = aCI.GetShapes();
unsigned int ind, nbshapes = aShapes->Length();
// add shapes
TopoDS_Compound C;
B.MakeCompound(C);
for (ind = 1; ind <= nbshapes; ind++) {
Handle(GEOM_Function) aRefShape = Handle(GEOM_Function)::DownCast(aShapes->Value(ind));
TopoDS_Shape aShape_i = aRefShape->GetValue();
if (aShape_i.IsNull()) {
Standard_NullObject::Raise("Shape for compound construction is null");
}
B.Add(C, aShape_i);
}
aShape = C;
}
else if (aType == REVERSE_ORIENTATION) {
Handle(GEOM_Function) aRefShape = aCI.GetBase();
TopoDS_Shape aShape_i = aRefShape->GetValue();
if (aShape_i.IsNull()) {
Standard_NullObject::Raise("Shape for reverse is null");
}
BRepBuilderAPI_Copy Copy(aShape_i);
if( Copy.IsDone() ) {
TopoDS_Shape tds = Copy.Shape();
if( tds.IsNull() ) {
Standard_ConstructionError::Raise("Orientation aborted : Can not reverse the shape");
}
if( tds.Orientation() == TopAbs_FORWARD)
tds.Orientation(TopAbs_REVERSED);
else
tds.Orientation(TopAbs_FORWARD);
aShape = tds;
}
}
else if (aType == EDGE_WIRE) {
Handle(GEOM_Function) aRefBase = aCI.GetBase();
TopoDS_Shape aWire = aRefBase->GetValue();
Standard_Real LinTol = aCI.GetTolerance();
Standard_Real AngTol = aCI.GetAngularTolerance();
if (aWire.IsNull()) Standard_NullObject::Raise("Argument Wire is null");
TopoDS_Edge ResEdge;
BRepLib::BuildCurves3d(aWire);
Handle(ShapeFix_Shape) Fixer = new ShapeFix_Shape(aWire);
Fixer->SetPrecision(LinTol);
Fixer->SetMaxTolerance(LinTol);
Fixer->Perform();
TopoDS_Wire theWire = TopoDS::Wire(Fixer->Shape());
TColGeom_SequenceOfCurve CurveSeq;
TopTools_SequenceOfShape LocSeq;
TColStd_SequenceOfReal FparSeq;
TColStd_SequenceOfReal LparSeq;
TColStd_SequenceOfReal TolSeq;
GeomAbs_CurveType CurType;
TopoDS_Vertex FirstVertex, LastVertex;
BRepTools_WireExplorer wexp(theWire) ;
for (; wexp.More(); wexp.Next())
{
TopoDS_Edge anEdge = wexp.Current();
Standard_Real fpar, lpar;
TopLoc_Location aLoc;
Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aLoc, fpar, lpar);
if (aCurve.IsNull())
continue;
BRepAdaptor_Curve BAcurve(anEdge);
GeomAbs_CurveType aType = BAcurve.GetType();
Handle(Geom_Curve) aBasisCurve = BAcurve.Curve().Curve();
if (aBasisCurve->IsPeriodic())
ElCLib::AdjustPeriodic(aBasisCurve->FirstParameter(), aBasisCurve->LastParameter(),
Precision::PConfusion(), fpar, lpar);
if (CurveSeq.IsEmpty())
{
CurveSeq.Append(aCurve);
TopoDS_Shape aLocShape;
aLocShape.Location(aLoc);
aLocShape.Orientation(wexp.Orientation());
LocSeq.Append(aLocShape);
FparSeq.Append(fpar);
LparSeq.Append(lpar);
CurType = aType;
FirstVertex = wexp.CurrentVertex();
}
else
{
Standard_Boolean Done = Standard_False;
Standard_Real NewFpar, NewLpar;
GeomAdaptor_Curve GAprevcurve(CurveSeq.Last());
TopoDS_Vertex CurVertex = wexp.CurrentVertex();
TopoDS_Vertex CurFirstVer = TopExp::FirstVertex(anEdge);
TopAbs_Orientation ConnectByOrigin = (CurVertex.IsSame(CurFirstVer))? TopAbs_FORWARD : TopAbs_REVERSED;
if (aCurve == CurveSeq.Last())
{
NewFpar = fpar;
NewLpar = lpar;
if (aBasisCurve->IsPeriodic())
{
if (NewLpar < NewFpar)
NewLpar += aBasisCurve->Period();
if (ConnectByOrigin == TopAbs_FORWARD)
ElCLib::AdjustPeriodic(FparSeq.Last(),
FparSeq.Last() + aBasisCurve->Period(),
Precision::PConfusion(), NewFpar, NewLpar);
else
ElCLib::AdjustPeriodic(FparSeq.Last() - aBasisCurve->Period(),
FparSeq.Last(),
Precision::PConfusion(), NewFpar, NewLpar);
}
Done = Standard_True;
}
else if (aType == CurType &&
aType != GeomAbs_BezierCurve &&
aType != GeomAbs_BSplineCurve &&
aType != GeomAbs_OtherCurve)
{
switch (aType)
{
case GeomAbs_Line:
{
gp_Lin aLine = BAcurve.Line();
gp_Lin PrevLine = GAprevcurve.Line();
if (aLine.Contains(PrevLine.Location(), LinTol) &&
aLine.Direction().IsParallel(PrevLine.Direction(), AngTol))
{
gp_Pnt P1 = ElCLib::Value(fpar, aLine);
gp_Pnt P2 = ElCLib::Value(lpar, aLine);
NewFpar = ElCLib::Parameter(PrevLine, P1);
NewLpar = ElCLib::Parameter(PrevLine, P2);
if (NewLpar < NewFpar)
{
Standard_Real MemNewFpar = NewFpar;
NewFpar = NewLpar;
NewLpar = MemNewFpar;
ConnectByOrigin = TopAbs::Reverse(ConnectByOrigin);
}
Done = Standard_True;
}
break;
}
case GeomAbs_Circle:
{
gp_Circ aCircle = BAcurve.Circle();
gp_Circ PrevCircle = GAprevcurve.Circle();
if (aCircle.Location().Distance(PrevCircle.Location()) <= LinTol &&
Abs(aCircle.Radius() - PrevCircle.Radius()) <= LinTol &&
aCircle.Axis().IsParallel(PrevCircle.Axis(), AngTol))
{
if (aCircle.Axis().Direction() * PrevCircle.Axis().Direction() < 0.)
{
Standard_Real memfpar = fpar;
fpar = lpar;
lpar = memfpar;
ConnectByOrigin = TopAbs::Reverse(ConnectByOrigin);
}
gp_Pnt P1 = ElCLib::Value(fpar, aCircle);
gp_Pnt P2 = ElCLib::Value(lpar, aCircle);
NewFpar = ElCLib::Parameter(PrevCircle, P1);
NewLpar = ElCLib::Parameter(PrevCircle, P2);
if (NewLpar < NewFpar)
NewLpar += 2.*PI;
//Standard_Real MemNewFpar = NewFpar, MemNewLpar = NewLpar;
if (ConnectByOrigin == TopAbs_FORWARD)
ElCLib::AdjustPeriodic(FparSeq.Last(),
FparSeq.Last() + 2.*PI,
Precision::PConfusion(), NewFpar, NewLpar);
else
ElCLib::AdjustPeriodic(FparSeq.Last() - 2.*PI,
FparSeq.Last(),
Precision::PConfusion(), NewFpar, NewLpar);
Done = Standard_True;
}
break;
}
case GeomAbs_Ellipse:
{
gp_Elips anEllipse = BAcurve.Ellipse();
gp_Elips PrevEllipse = GAprevcurve.Ellipse();
if (anEllipse.Focus1().Distance(PrevEllipse.Focus1()) <= LinTol &&
anEllipse.Focus2().Distance(PrevEllipse.Focus2()) <= LinTol &&
Abs(anEllipse.MajorRadius() - PrevEllipse.MajorRadius()) <= LinTol &&
Abs(anEllipse.MinorRadius() - PrevEllipse.MinorRadius()) <= LinTol &&
anEllipse.Axis().IsParallel(PrevEllipse.Axis(), AngTol))
{
if (anEllipse.Axis().Direction() * PrevEllipse.Axis().Direction() < 0.)
{
Standard_Real memfpar = fpar;
fpar = lpar;
lpar = memfpar;
ConnectByOrigin = TopAbs::Reverse(ConnectByOrigin);
}
gp_Pnt P1 = ElCLib::Value(fpar, anEllipse);
gp_Pnt P2 = ElCLib::Value(lpar, anEllipse);
NewFpar = ElCLib::Parameter(PrevEllipse, P1);
NewLpar = ElCLib::Parameter(PrevEllipse, P2);
if (NewLpar < NewFpar)
NewLpar += 2.*PI;
if (ConnectByOrigin == TopAbs_FORWARD)
ElCLib::AdjustPeriodic(FparSeq.Last(),
FparSeq.Last() + 2.*PI,
Precision::PConfusion(), NewFpar, NewLpar);
else
ElCLib::AdjustPeriodic(FparSeq.Last() - 2.*PI,
FparSeq.Last(),
Precision::PConfusion(), NewFpar, NewLpar);
Done = Standard_True;
}
break;
}
case GeomAbs_Hyperbola:
{
gp_Hypr aHypr = BAcurve.Hyperbola();
gp_Hypr PrevHypr = GAprevcurve.Hyperbola();
if (aHypr.Focus1().Distance(PrevHypr.Focus1()) <= LinTol &&
aHypr.Focus2().Distance(PrevHypr.Focus2()) <= LinTol &&
Abs(aHypr.MajorRadius() - PrevHypr.MajorRadius()) <= LinTol &&
Abs(aHypr.MinorRadius() - PrevHypr.MinorRadius()) <= LinTol &&
aHypr.Axis().IsParallel(PrevHypr.Axis(), AngTol))
{
gp_Pnt P1 = ElCLib::Value(fpar, aHypr);
gp_Pnt P2 = ElCLib::Value(lpar, aHypr);
NewFpar = ElCLib::Parameter(PrevHypr, P1);
NewLpar = ElCLib::Parameter(PrevHypr, P2);
if (NewLpar < NewFpar)
{
Standard_Real MemNewFpar = NewFpar;
NewFpar = NewLpar;
NewLpar = MemNewFpar;
ConnectByOrigin = TopAbs::Reverse(ConnectByOrigin);
}
Done = Standard_True;
}
break;
}
case GeomAbs_Parabola:
{
gp_Parab aParab = BAcurve.Parabola();
gp_Parab PrevParab = GAprevcurve.Parabola();
if (aParab.Location().Distance(PrevParab.Location()) <= LinTol &&
aParab.Focus().Distance(PrevParab.Focus()) <= LinTol &&
Abs(aParab.Focal() - PrevParab.Focal()) <= LinTol &&
aParab.Axis().IsParallel(PrevParab.Axis(), AngTol))
{
gp_Pnt P1 = ElCLib::Value(fpar, aParab);
gp_Pnt P2 = ElCLib::Value(lpar, aParab);
NewFpar = ElCLib::Parameter(PrevParab, P1);
NewLpar = ElCLib::Parameter(PrevParab, P2);
if (NewLpar < NewFpar)
{
Standard_Real MemNewFpar = NewFpar;
NewFpar = NewLpar;
NewLpar = MemNewFpar;
ConnectByOrigin = TopAbs::Reverse(ConnectByOrigin);
}
Done = Standard_True;
}
break;
}
} //end of switch (aType)
} // end of else if (aType == CurType && ...
if (Done)
{
if (NewFpar < FparSeq.Last())
FparSeq(FparSeq.Length()) = NewFpar;
else
LparSeq(LparSeq.Length()) = NewLpar;
}
else
{
CurveSeq.Append(aCurve);
TopoDS_Shape aLocShape;
aLocShape.Location(aLoc);
aLocShape.Orientation(wexp.Orientation());
LocSeq.Append(aLocShape);
FparSeq.Append(fpar);
LparSeq.Append(lpar);
TolSeq.Append(BRep_Tool::Tolerance(CurVertex));
CurType = aType;
}
} // end of else (CurveSeq.IsEmpty()) -> not first time
} // end for (; wexp.More(); wexp.Next())
LastVertex = wexp.CurrentVertex();
TolSeq.Append(BRep_Tool::Tolerance(LastVertex));
if (!CurveSeq.IsEmpty())
{
Standard_Integer nb_curve = CurveSeq.Length(); //number of curves
TColGeom_Array1OfBSplineCurve tab(0,nb_curve-1); //array of the curves
TColStd_Array1OfReal tabtolvertex(0,nb_curve-1); //(0,nb_curve-2); //array of the tolerances
Standard_Integer i;
if (nb_curve > 1)
{
for (i = 1; i <= nb_curve; i++)
{
if (CurveSeq(i)->IsInstance(STANDARD_TYPE(Geom_TrimmedCurve)))
CurveSeq(i) = (*((Handle(Geom_TrimmedCurve)*)&(CurveSeq(i))))->BasisCurve();
Handle(Geom_TrimmedCurve) aTrCurve = new Geom_TrimmedCurve(CurveSeq(i), FparSeq(i), LparSeq(i));
tab(i-1) = GeomConvert::CurveToBSplineCurve(aTrCurve);
tab(i-1)->Transform(LocSeq(i).Location().Transformation());
GeomConvert::C0BSplineToC1BSplineCurve(tab(i-1), Precision::Confusion());
if (LocSeq(i).Orientation() == TopAbs_REVERSED)
tab(i-1)->Reverse();
//Temporary
//char* name = new char[100];
//sprintf(name, "c%d", i);
//DrawTrSurf::Set(name, tab(i-1));
if (i > 1)
tabtolvertex(i-2) = TolSeq(i-1);
} // end for (i = 1; i <= nb_curve; i++)
tabtolvertex(nb_curve-1) = TolSeq(TolSeq.Length());
Standard_Boolean closed_flag = Standard_False;
Standard_Real closed_tolerance = 0.;
if (FirstVertex.IsSame(LastVertex) &&
GeomLProp::Continuity(tab(0), tab(nb_curve-1),
tab(0)->FirstParameter(),
tab(nb_curve-1)->LastParameter(),
Standard_False, Standard_False, LinTol, AngTol) >= GeomAbs_G1)
{
closed_flag = Standard_True ;
closed_tolerance = BRep_Tool::Tolerance(FirstVertex);
}
Handle(TColGeom_HArray1OfBSplineCurve) concatcurve; //array of the concatenated curves
Handle(TColStd_HArray1OfInteger) ArrayOfIndices; //array of the remining Vertex
GeomConvert::ConcatC1(tab,
tabtolvertex,
ArrayOfIndices,
concatcurve,
closed_flag,
closed_tolerance); //C1 concatenation
if (concatcurve->Length() > 1)
{
GeomConvert_CompCurveToBSplineCurve Concat(concatcurve->Value(concatcurve->Lower()));
for (i = concatcurve->Lower()+1; i <= concatcurve->Upper(); i++)
Concat.Add( concatcurve->Value(i), LinTol, Standard_True );
concatcurve->SetValue(concatcurve->Lower(), Concat.BSplineCurve());
}
ResEdge = BRepLib_MakeEdge(concatcurve->Value(concatcurve->Lower()),
FirstVertex, LastVertex);
}
else
{
if (CurveSeq(1)->IsInstance(STANDARD_TYPE(Geom_TrimmedCurve)))
CurveSeq(1) = (*((Handle(Geom_TrimmedCurve)*)&(CurveSeq(i))))->BasisCurve();
CurveSeq(1)->Transform(LocSeq(1).Location().Transformation());
ResEdge = BRepLib_MakeEdge(CurveSeq(1),
FirstVertex, LastVertex,
FparSeq(1), LparSeq(1));
}
}
aShape = ResEdge;
}
if (aShape.IsNull()) return 0;
// Check shape validity
BRepCheck_Analyzer ana (aShape, false);
if (!ana.IsValid()) {
//Standard_ConstructionError::Raise("Algorithm have produced an invalid shape result");
}
aFunction->SetValue(aShape);
log.SetTouched(Label());
return 1;
}
//=======================================================================
//function : GEOMImpl_ShapeDriver_Type_
//purpose :
//=======================================================================
Standard_EXPORT Handle_Standard_Type& GEOMImpl_ShapeDriver_Type_()
{
static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_ShapeDriver",
sizeof(GEOMImpl_ShapeDriver),
1,
(Standard_Address)_Ancestors,
(Standard_Address)NULL);
return _aType;
}
//=======================================================================
//function : DownCast
//purpose :
//=======================================================================
const Handle(GEOMImpl_ShapeDriver) Handle(GEOMImpl_ShapeDriver)::DownCast(const Handle(Standard_Transient)& AnObject)
{
Handle(GEOMImpl_ShapeDriver) _anOtherObject;
if (!AnObject.IsNull()) {
if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_ShapeDriver))) {
_anOtherObject = Handle(GEOMImpl_ShapeDriver)((Handle(GEOMImpl_ShapeDriver)&)AnObject);
}
}
return _anOtherObject;
}
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