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geom/src/GEOMImpl/GEOMImpl_FillingDriver.cxx

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// Copyright (C) 2007-2016 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, or (at your option) any later version.
//
// 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 <Standard_Stream.hxx>
#include <GEOMImpl_FillingDriver.hxx>
#include <GEOMImpl_IFilling.hxx>
#include <GEOMImpl_Types.hxx>
#include <GEOM_Function.hxx>
#include <Basics_OCCTVersion.hxx>
#include <BRepAlgo.hxx>
#include <BRepBuilderAPI_Copy.hxx>
#include <BRepBuilderAPI_MakeFace.hxx>
#include <BRep_Builder.hxx>
#include <BRep_Tool.hxx>
#include <BRepOffsetAPI_MakeFilling.hxx>
#include <GeomAPI_PointsToBSpline.hxx>
#include <GeomAPI_PointsToBSplineSurface.hxx>
#include <GeomFill_AppSurf.hxx>
#include <GeomFill_Line.hxx>
#include <GeomFill_SectionGenerator.hxx>
#include <Geom_BSplineCurve.hxx>
#include <Geom_BSplineSurface.hxx>
#include <Geom_BezierCurve.hxx>
#include <Geom_Circle.hxx>
#include <Geom_Curve.hxx>
#include <Geom_Ellipse.hxx>
#include <Geom_Line.hxx>
#include <Geom_Surface.hxx>
#include <Geom_TrimmedCurve.hxx>
#include <Precision.hxx>
#include <ShapeFix_Face.hxx>
#include <TColGeom_SequenceOfCurve.hxx>
#include <TColgp_Array1OfPnt.hxx>
#include <TColgp_SequenceOfPnt.hxx>
#include <TopAbs.hxx>
#include <TopExp_Explorer.hxx>
#include <TopTools_SequenceOfShape.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Compound.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_Shape.hxx>
#include <TopoDS_Vertex.hxx>
#include <Standard_ConstructionError.hxx>
//=======================================================================
//function : GetID
//purpose :
//=======================================================================
const Standard_GUID& GEOMImpl_FillingDriver::GetID()
{
static Standard_GUID aFillingDriver ("FF1BBB62-5D14-4df2-980B-3A668264EA16");
return aFillingDriver;
}
//=======================================================================
//function : GEOMImpl_FillingDriver
//purpose :
//=======================================================================
GEOMImpl_FillingDriver::GEOMImpl_FillingDriver()
{
}
//=======================================================================
//function : Execute
//purpose :
//=======================================================================
Standard_Integer GEOMImpl_FillingDriver::Execute(LOGBOOK& log) const
{
if (Label().IsNull()) return 0;
Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
if (aFunction.IsNull()) return 0;
TopoDS_Shape aShape;
GEOMImpl_IFilling IF (aFunction);
if( aFunction->GetType() == BASIC_FILLING )
{
GEOMImpl_IFilling IF (aFunction);
Standard_Integer mindeg = IF.GetMinDeg();
Standard_Integer maxdeg = IF.GetMaxDeg();
Standard_Real tol3d = IF.GetTol3D();
Standard_Boolean isApprox = IF.GetApprox();
if (mindeg > maxdeg) {
Standard_RangeError::Raise("Minimal degree can not be more than maximal degree");
}
/* we verify the contents of the shape */
TopExp_Explorer Ex;
TopoDS_Shape Scurrent;
Standard_Real First, Last;
Handle(Geom_Curve) C;
TopoDS_Compound aComp;
BRep_Builder B;
B.MakeCompound(aComp);
// input is either a list or compound of contours
TopTools_SequenceOfShape contours;
Handle(TColStd_HSequenceOfTransient) aShapeFunctions = IF.GetShapes();
if ( aShapeFunctions.IsNull() || aShapeFunctions->IsEmpty() ) return 0;
for ( int i = 1; i <= aShapeFunctions->Length(); ++i )
{
Handle(GEOM_Function) fun = Handle(GEOM_Function)::DownCast( aShapeFunctions->Value( i ));
if ( fun.IsNull() ) return 0;
TopoDS_Shape s = fun->GetValue();
if ( s.IsNull() ) return 0;
BRepBuilderAPI_Copy Copy (s);
if ( Copy.IsDone() )
contours.Append( Copy.Shape() );
}
// 1. Convert argument wires, if any, into BSpline edges
for ( int i = 1; i <= contours.Length(); ++i )
{
Scurrent = contours.Value( i );
if (Scurrent.ShapeType() != TopAbs_EDGE) {
if (Scurrent.ShapeType() == TopAbs_WIRE)
{
const TopoDS_Wire& CurWire = TopoDS::Wire(Scurrent);
TopoDS_Edge NewEdge = BRepAlgo::ConcatenateWireC0(CurWire);
if (NewEdge.IsNull())
Standard_ConstructionError::Raise("Failed to join several edges into one");
Scurrent = NewEdge;
}
else if (Scurrent.ShapeType() == TopAbs_COMPOUND)
{
for ( TopoDS_Iterator It( Scurrent ); It.More(); It.Next() )
contours.Append( It.Value() );
continue;
}
else
{
Standard_ConstructionError::Raise("Input must contain only edges or/and wires");
}
}
B.Add(aComp,Scurrent);
}
aShape = aComp;
// 2. The surface construction
if (!isApprox) {
// make filling as in old version of SALOME (before 4.1.1)
Standard_Real tol2d = IF.GetTol2D();
Standard_Integer nbiter = IF.GetNbIter();
Standard_Integer aMethod = IF.GetMethod();
GeomFill_SectionGenerator Section;
Standard_Integer aNumSection = 0;
Handle(Geom_Curve) aLastC;
gp_Pnt PL1,PL2;
for (Ex.Init(aShape, TopAbs_EDGE); Ex.More(); Ex.Next()) {
Scurrent = Ex.Current();
if (Scurrent.IsNull() || Scurrent.ShapeType() != TopAbs_EDGE) return 0;
if (BRep_Tool::Degenerated(TopoDS::Edge(Scurrent))) continue;
C = BRep_Tool::Curve(TopoDS::Edge(Scurrent), First, Last);
//if (Scurrent.Orientation() == TopAbs_REVERSED)
// // Mantis isuue 0020659: consider the orientation of the edges
// C = new Geom_TrimmedCurve(C, Last, First);
//else
// C = new Geom_TrimmedCurve(C, First, Last);
C = new Geom_TrimmedCurve(C, First, Last);
gp_Pnt P1,P2;
C->D0(First,P1);
C->D0(Last,P2);
if (aMethod == 1 && Scurrent.Orientation() == TopAbs_REVERSED) {
C->Reverse();
}
else if (aMethod == 2) {
if (aNumSection == 0) {
PL1 = P1;
PL2 = P2;
}
else {
double d1 = PL1.Distance(P1) + PL2.Distance(P2);
double d2 = PL1.Distance(P2) + PL2.Distance(P1);
if (d2 < d1) {
C->Reverse();
PL1 = P2;
PL2 = P1;
}
else {
PL1 = P1;
PL2 = P2;
}
}
}
Section.AddCurve(C);
aNumSection++;
}
/* a 'tolerance' is used to compare 2 knots : see GeomFill_Generator.cdl */
Section.Perform(Precision::PConfusion());
//imn: to fix the bug 23351: "Crash is filling has only one edge"
//after fix related occt bug 27875 must be removed
if (aNumSection < 2) {
Standard_ConstructionError::Raise("Input must contain more than one edge");
}
Handle(GeomFill_Line) Line = new GeomFill_Line(aNumSection);
GeomFill_AppSurf App (mindeg, maxdeg, tol3d, tol2d, nbiter); /* user parameters */
App.Perform(Line, Section);
if (!App.IsDone()) return 0;
Standard_Integer UDegree, VDegree, NbUPoles, NbVPoles, NbUKnots, NbVKnots;
App.SurfShape(UDegree, VDegree, NbUPoles, NbVPoles, NbUKnots, NbVKnots);
Handle(Geom_BSplineSurface) GBS = new Geom_BSplineSurface
(App.SurfPoles(), App.SurfWeights(), App.SurfUKnots(), App.SurfVKnots(),
App.SurfUMults(), App.SurfVMults(), App.UDegree(), App.VDegree());
if (GBS.IsNull()) return 0;
aShape = BRepBuilderAPI_MakeFace(GBS, Precision::Confusion());
}
else {
// implemented by skl 20.03.2008 for bug 16568
// make approximation - try to create bspline surface
// using GeomAPI_PointsToBSplineSurface
TColGeom_SequenceOfCurve aSeq;
int MaxNbPoles = 0;
// add curves from edges to sequence and find maximal
// number of poles if some of them are bsplines
for (Ex.Init(aShape, TopAbs_EDGE); Ex.More(); Ex.Next()) {
Scurrent = Ex.Current();
if (Scurrent.IsNull() || Scurrent.ShapeType() != TopAbs_EDGE) return 0;
if (BRep_Tool::Degenerated(TopoDS::Edge(Scurrent))) continue;
C = BRep_Tool::Curve(TopoDS::Edge(Scurrent), First, Last);
Handle(Geom_TrimmedCurve) TC = Handle(Geom_TrimmedCurve)::DownCast(C);
if (TC.IsNull()) {
Handle(Geom_BSplineCurve) BC = Handle(Geom_BSplineCurve)::DownCast(C);
if (!BC.IsNull()) {
MaxNbPoles = Max(MaxNbPoles,BC->NbPoles());
}
}
else {
Handle(Geom_BSplineCurve) BC = Handle(Geom_BSplineCurve)::DownCast(TC->BasisCurve());
if (BC.IsNull()) {
Handle(Geom_TrimmedCurve) TC1 = Handle(Geom_TrimmedCurve)::DownCast(TC->BasisCurve());
if (!TC1.IsNull()) {
BC = Handle(Geom_BSplineCurve)::DownCast(TC1->BasisCurve());
}
}
if (!BC.IsNull()) {
MaxNbPoles = Max(MaxNbPoles,BC->NbPoles());
}
}
aSeq.Append(C);
}
// prepare array of points for creation bspline surface
// size of this array: by U parameter - number of curves,
// by V parameter - determ using MaxNbPoles but it's
// value must be between 21(min) and 101(max)
int nbc = aSeq.Length();
int nbp = Max(21, 2*MaxNbPoles-1);
// commented for Mantis issue 0021541
//if (nbp > 101) nbp = 101;
TColgp_Array2OfPnt Points (1, nbc, 1, nbp);
int ic = 1;
for (; ic <= nbc; ic++) {
Handle(Geom_Curve) C = aSeq.Value(ic);
double fp = C->FirstParameter();
double lp = C->LastParameter();
double dp = (lp-fp)/(nbp-1);
int j = 0;
gp_Pnt P;
for (; j < nbp; j++) {
C->D0(fp+dp*j, P);
Points.SetValue(ic, j+1, P);
}
}
GeomAPI_PointsToBSplineSurface PTB (Points, mindeg, maxdeg, GeomAbs_C2, tol3d);
Handle(Geom_BSplineSurface) BS = PTB.Surface();
BRepBuilderAPI_MakeFace BB (BS, Precision::Confusion());
TopoDS_Face NewF = BB.Face();
Handle(ShapeFix_Face) sff = new ShapeFix_Face (NewF);
sff->Perform();
sff->FixOrientation();
aShape = sff->Face();
}
}
else if( aFunction->GetType() == FILLING_ON_CONSTRAINTS )
{
BRepOffsetAPI_MakeFilling MakeFilling;
Handle(TColStd_HSequenceOfTransient) aConstraints = IF.GetShapes();
for ( unsigned int ind = 1; ind <= aConstraints->Length(); ind++ ) {
TopoDS_Edge E;
TopoDS_Face F;
Handle(GEOM_Function) aRefShape = Handle(GEOM_Function)::DownCast( aConstraints->Value(ind) );
if ( !aRefShape->GetValue().IsNull() && aRefShape->GetValue().ShapeType() == TopAbs_EDGE )
E = TopoDS::Edge(aRefShape->GetValue() );
else {
Standard_RangeError::Raise("Wrong parameters");
}
if ( ind < aConstraints->Length() ) {
Handle(GEOM_Function) aRefFaceShape = Handle(GEOM_Function)::DownCast( aConstraints->Value(ind+1) );
if ( !aRefFaceShape->GetValue().IsNull() && aRefFaceShape->GetValue().ShapeType() == TopAbs_FACE ) {
F = TopoDS::Face( aRefFaceShape->GetValue() );
ind++;
}
}
if ( !F.IsNull() )
MakeFilling.Add( E, F, GeomAbs_G1 );
else
MakeFilling.Add( E, GeomAbs_C0 );
}
MakeFilling.Build();
if ( !MakeFilling.IsDone() )
{
Standard_RangeError::Raise("Filling on constraints failed");
}
aShape = TopoDS::Face( MakeFilling.Shape() );
}
/* We test the validity of resulting shape */
if (!BRepAlgo::IsValid((aShape))) {
Standard_ConstructionError::Raise("Algorithm has produced an invalid shape result");
}
aFunction->SetValue(aShape);
#if OCC_VERSION_MAJOR < 7
log.SetTouched(Label());
#else
log->SetTouched(Label());
#endif
return 1;
}
//================================================================================
/*!
* \brief Returns a name of creation operation and names and values of creation parameters
*/
//================================================================================
bool GEOMImpl_FillingDriver::
GetCreationInformation(std::string& theOperationName,
std::vector<GEOM_Param>& theParams)
{
if (Label().IsNull()) return 0;
Handle(GEOM_Function) function = GEOM_Function::GetFunction(Label());
GEOMImpl_IFilling aCI( function );
Standard_Integer aType = function->GetType();
theOperationName = "FILLING";
switch ( aType ) {
case BASIC_FILLING:
{
AddParam( theParams, "Input compound", aCI.GetShapes() );
AddParam( theParams, "Method", aCI.GetMethod() );
const char* method[3] =
{ "Standard", "Use edges orientation", "Correct edges orientation" };
if ( 0 <= aCI.GetMethod() && aCI.GetMethod() < 3 )
theParams[1] << " = " << method[ aCI.GetMethod() ];
AddParam( theParams, "Min deg", aCI.GetMinDeg() );
AddParam( theParams, "Max deg", aCI.GetMaxDeg() );
AddParam( theParams, "Nb. Iter", aCI.GetNbIter() );
AddParam( theParams, "Tol. 2D", aCI.GetTol2D() );
AddParam( theParams, "Tol. 3D", aCI.GetTol3D() );
AddParam( theParams, "Approximation", aCI.GetApprox() );
break;
}
case FILLING_ON_CONSTRAINTS:
{
theOperationName = "FACE";
AddParam( theParams, "Edges/Faces", aCI.GetShapes() );
break;
}
default:
return false;
}
return true;
}
OCCT_IMPLEMENT_STANDARD_RTTIEXT (GEOMImpl_FillingDriver,GEOM_BaseDriver);
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