void BRepOffsetAPI_MakeOffsetFix::AddWire(const TopoDS_Wire& Spine)
{
    TopoDS_Wire wire = Spine;
    int numEdges = 0;
    TopExp_Explorer xp(wire, TopAbs_EDGE);
    while (xp.More()) {
        numEdges++;
        xp.Next();
    }
    if (numEdges == 1) {
        TopLoc_Location edgeLocation;

        BRepBuilderAPI_MakeWire mkWire;
        TopExp_Explorer xp(wire, TopAbs_EDGE);
        while (xp.More()) {
            // The trick is to reset the placement of an edge before
            // passing it to BRepOffsetAPI_MakeOffset because then it
            // will create the expected result.
            // Afterwards apply the placement again on the result shape.
            // See the method MakeWire()
            TopoDS_Edge edge = TopoDS::Edge(xp.Current());
            edgeLocation = edge.Location();
            edge.Location(TopLoc_Location());
            mkWire.Add(edge);
            myLocations.push_back(std::make_pair(edge, edgeLocation));
            xp.Next();
        }

        wire = mkWire.Wire();
    }
    mkOffset.AddWire(wire);
    myResult.Nullify();
}
Пример #2
0
// sometimes, we ask to replace the ending points of the curve
// in gluing operations for example
void OCCEdge::replaceEndingPointsInternals(GVertex *g0, GVertex *g1)
{
  TopoDS_Vertex aV1 = *((TopoDS_Vertex*)v0->getNativePtr());
  TopoDS_Vertex aV2 = *((TopoDS_Vertex*)v1->getNativePtr());
  TopoDS_Vertex aVR1 = *((TopoDS_Vertex*)g0->getNativePtr());
  TopoDS_Vertex aVR2 = *((TopoDS_Vertex*)g1->getNativePtr());

  //  printf("%p %p --- %p %p replacing %d %d by %d %d in occedge %d\n",
  //	 v0,v1,g0,g1,v0->tag(),v1->tag(),g0->tag(),g1->tag(),tag());

  Standard_Boolean bIsDE = BRep_Tool::Degenerated(c);

  TopoDS_Edge aEx = c;
  aEx.Orientation(TopAbs_FORWARD);

  Standard_Real t1=s0;
  Standard_Real t2=s1;

  aVR1.Orientation(TopAbs_FORWARD);
  aVR2.Orientation(TopAbs_REVERSED);

  if (bIsDE) {
    Standard_Real aTol;
    BRep_Builder aBB;
    TopoDS_Edge E;
    //TopAbs_Orientation anOrE;
    //anOrE = c.Orientation();
    aTol = BRep_Tool::Tolerance(c);
    E = aEx;
    E.EmptyCopy();
    aBB.Add(E, aVR1);
    aBB.Add(E, aVR2);
    aBB.Range(E, t1, t2);
    aBB.Degenerated(E, Standard_True);
    aBB.UpdateEdge(E, aTol);
    _replacement=E;
  }
  else {
#if (OCC_VERSION_MAJOR == 6) && (OCC_VERSION_MINOR < 6)
    BOPTools_Tools::MakeSplitEdge(aEx, aVR1, t1, aVR2, t2, _replacement);
#else
    BOPTools_AlgoTools::MakeSplitEdge(aEx, aVR1, t1, aVR2, t2, _replacement);
#endif
  }
  TopoDS_Edge temp = c;
  c = _replacement;
  _replacement = temp;
  curve = BRep_Tool::Curve(c, s0, s1);
  //build the reverse curve
  c_rev = c;
  c_rev.Reverse();
}
Пример #3
0
bool Edgecluster::IsValidEdge(const TopoDS_Edge& edge)
{
    if ( edge.IsNull() )
        return false;
    if ( BRep_Tool::Degenerated(edge) )
        return false;

    BRepAdaptor_Curve bac(edge);

    Standard_Real fparam = bac.FirstParameter();
    Standard_Real lparam = bac.LastParameter();

    gp_Pnt fpoint = bac.Value(fparam);
    gp_Pnt lpoint = bac.Value(lparam);

    //do not test the distance first last in case of a full circle edge (fpoint == lastpoint)
    //if ( fpoint.IsEqual(lpoint,1e-5 ) )
    //      return false;

    gp_Pnt mpoint = bac.Value((fparam+lparam)*0.5);

    Standard_Real dist = mpoint.Distance(lpoint);
    if ( dist <= 1e-5 )
        return false;
    dist = mpoint.Distance(fpoint);
    if ( dist <= 1e-5 )
        return false;

    return true;
}
Пример #4
0
//=======================================================================
//function : GetEdgeOff
//purpose  : 
//=======================================================================
  Standard_Boolean GEOMAlgo_Tools3D::GetEdgeOff(const TopoDS_Edge& theE1,
                                               const TopoDS_Face& theF2,
                                               TopoDS_Edge& theE2)
     
{
  Standard_Boolean bFound;
  TopAbs_Orientation aOr1, aOr1C, aOr2;
  TopExp_Explorer anExp;
  //
  bFound=Standard_False;
  aOr1=theE1.Orientation();
  aOr1C=TopAbs::Reverse(aOr1);
  //
  anExp.Init(theF2, TopAbs_EDGE);
  for (; anExp.More(); anExp.Next()) {
    const TopoDS_Edge& aEF2=TopoDS::Edge(anExp.Current());
    if (aEF2.IsSame(theE1)) {
      aOr2=aEF2.Orientation();
      if (aOr2==aOr1C) {
        theE2=aEF2;
        bFound=!bFound;
        return bFound;
      }
    }
  }
  return bFound;
}
Пример #5
0
//=======================================================================
//function :IsSplitToReverse
//purpose  : 
//=======================================================================
  Standard_Boolean GEOMAlgo_Tools3D::IsSplitToReverse(const TopoDS_Edge& theSplit,
                                                     const TopoDS_Edge& theEdge,
                                                     IntTools_Context& theContext)
{
  Standard_Boolean bRet, aFlag, bIsDegenerated;
  Standard_Real aTE, aTS, aScPr, aTa, aTb, aT1, aT2;
  TopAbs_Orientation aOrSr, aOrSp;
  Handle(Geom_Curve) aCEdge, aCSplit;
  gp_Vec aVE, aVS;
  gp_Pnt aP;
  //
  bRet=Standard_False;
  //
  bIsDegenerated=(BRep_Tool::Degenerated(theSplit) || 
                  BRep_Tool::Degenerated(theEdge));
  if (bIsDegenerated) {
    return bRet;
  }
  //
  aCEdge =BRep_Tool::Curve(theEdge , aT1, aT2);
  aCSplit=BRep_Tool::Curve(theSplit, aTa, aTb);
  //
  if (aCEdge==aCSplit) {
    aOrSr=theEdge.Orientation();
    aOrSp=theSplit.Orientation();
    bRet=(aOrSr!=aOrSp);
    return bRet;
  }
  //
  aTS=BOPTools_Tools2D::IntermediatePoint(aTa, aTb);
  aCSplit->D0(aTS, aP);
  aFlag=BOPTools_Tools2D::EdgeTangent(theSplit, aTS, aVS);
  gp_Dir aDTS(aVS);
  //
  aFlag=theContext.ProjectPointOnEdge(aP, theEdge, aTE);
  aFlag=BOPTools_Tools2D::EdgeTangent(theEdge, aTE, aVE);
  gp_Dir aDTE(aVE);
  //
  aScPr=aDTS*aDTE;
  bRet=(aScPr<0.);
  //
  return bRet;
}
TopoDS_Edge
        StdMeshers_Hexa_3D::EdgeNotInFace(SMESH_Mesh & aMesh,
        const TopoDS_Shape & aShape,
        const TopoDS_Face & aFace,
        const TopoDS_Vertex & aVertex,
        const TopTools_IndexedDataMapOfShapeListOfShape & MS)
{
        //MESSAGE("StdMeshers_Hexa_3D::EdgeNotInFace");
        TopTools_IndexedDataMapOfShapeListOfShape MF;
        TopExp::MapShapesAndAncestors(aFace, TopAbs_VERTEX, TopAbs_EDGE, MF);
        const TopTools_ListOfShape & ancestorsInSolid = MS.FindFromKey(aVertex);
        const TopTools_ListOfShape & ancestorsInFace = MF.FindFromKey(aVertex);
//      SCRUTE(ancestorsInSolid.Extent());
//      SCRUTE(ancestorsInFace.Extent());
        ASSERT(ancestorsInSolid.Extent() == 6); // 6 (edges doublees)
        ASSERT(ancestorsInFace.Extent() == 2);

        TopoDS_Edge E;
        E.Nullify();
        TopTools_ListIteratorOfListOfShape its(ancestorsInSolid);
        for (; its.More(); its.Next())
        {
                TopoDS_Shape ancestor = its.Value();
                TopTools_ListIteratorOfListOfShape itf(ancestorsInFace);
                bool isInFace = false;
                for (; itf.More(); itf.Next())
                {
                        TopoDS_Shape ancestorInFace = itf.Value();
                        if (ancestorInFace.IsSame(ancestor))
                        {
                                isInFace = true;
                                break;
                        }
                }
                if (!isInFace)
                {
                        E = TopoDS::Edge(ancestor);
                        break;
                }
        }
        return E;
}
Пример #7
0
//=======================================================================
//function : SamePnt2d
//purpose  : 
//=======================================================================
static Standard_Boolean  SamePnt2d(TopoDS_Vertex  V,
				   TopoDS_Edge&   E1,
				   TopoDS_Edge&   E2,
				   TopoDS_Face&   F)
{
  Standard_Real   f1,f2,l1,l2;
  gp_Pnt2d        P1,P2;
  TopoDS_Shape aLocalF = F.Oriented(TopAbs_FORWARD);
  TopoDS_Face FF = TopoDS::Face(aLocalF);
  Handle(Geom2d_Curve) C1 = BRep_Tool::CurveOnSurface(E1,FF,f1,l1);  
  Handle(Geom2d_Curve) C2 = BRep_Tool::CurveOnSurface(E2,FF,f2,l2);  
  if (E1.Orientation () == TopAbs_FORWARD) P1 = C1->Value(f1);
  else                                     P1 = C1->Value(l1);
  
  if (E2.Orientation () == TopAbs_FORWARD) P2 = C2->Value(l2);
  else                                     P2 = C2->Value(f2);
  Standard_Real Tol  = 100*BRep_Tool::Tolerance(V);
  Standard_Real Dist = P1.Distance(P2);
  return Dist < Tol; 
}
Пример #8
0
bool SMESH_Algo::GetSortedNodesOnEdge(const SMESHDS_Mesh*                   theMesh,
                                      const TopoDS_Edge&                    theEdge,
                                      const bool                            ignoreMediumNodes,
                                      map< double, const SMDS_MeshNode* > & theNodes)
{
  theNodes.clear();

  if ( !theMesh || theEdge.IsNull() )
    return false;

  SMESHDS_SubMesh * eSubMesh = theMesh->MeshElements( theEdge );
  if ( !eSubMesh || !eSubMesh->GetElements()->more() )
    return false; // edge is not meshed

  int nbNodes = 0;
  set < double > paramSet;
  if ( eSubMesh )
  {
    // loop on nodes of an edge: sort them by param on edge
    SMDS_NodeIteratorPtr nIt = eSubMesh->GetNodes();
    while ( nIt->more() )
    {
      const SMDS_MeshNode* node = nIt->next();
      if ( ignoreMediumNodes ) {
        SMDS_ElemIteratorPtr elemIt = node->GetInverseElementIterator();
        if ( elemIt->more() && elemIt->next()->IsMediumNode( node ))
          continue;
      }
      const SMDS_PositionPtr& pos = node->GetPosition();
      if ( pos->GetTypeOfPosition() != SMDS_TOP_EDGE )
        return false;
      const SMDS_EdgePosition* epos =
        static_cast<const SMDS_EdgePosition*>(node->GetPosition().get());
      theNodes.insert( make_pair( epos->GetUParameter(), node ));
      ++nbNodes;
    }
  }
  // add vertex nodes
  TopoDS_Vertex v1, v2;
  TopExp::Vertices(theEdge, v1, v2);
  const SMDS_MeshNode* n1 = VertexNode( v1, (SMESHDS_Mesh*) theMesh );
  const SMDS_MeshNode* n2 = VertexNode( v2, (SMESHDS_Mesh*) theMesh );
  Standard_Real f, l;
  BRep_Tool::Range(theEdge, f, l);
  if ( v1.Orientation() != TopAbs_FORWARD )
    std::swap( f, l );
  if ( n1 && ++nbNodes )
    theNodes.insert( make_pair( f, n1 ));
  if ( n2 && ++nbNodes )
    theNodes.insert( make_pair( l, n2 ));

  return theNodes.size() == nbNodes;
}
Пример #9
0
bool SMESH_Algo::GetNodeParamOnEdge(const SMESHDS_Mesh* theMesh,
                                    const TopoDS_Edge&  theEdge,
                                    vector< double > &  theParams)
{
  theParams.clear();

  if ( !theMesh || theEdge.IsNull() )
    return false;

  SMESHDS_SubMesh * eSubMesh = theMesh->MeshElements( theEdge );
  if ( !eSubMesh || !eSubMesh->GetElements()->more() )
    return false; // edge is not meshed

  //int nbEdgeNodes = 0;
  set < double > paramSet;
  if ( eSubMesh )
  {
    // loop on nodes of an edge: sort them by param on edge
    SMDS_NodeIteratorPtr nIt = eSubMesh->GetNodes();
    while ( nIt->more() )
    {
      const SMDS_MeshNode* node = nIt->next();
      const SMDS_PositionPtr& pos = node->GetPosition();
      if ( pos->GetTypeOfPosition() != SMDS_TOP_EDGE )
        return false;
      const SMDS_EdgePosition* epos =
        static_cast<const SMDS_EdgePosition*>(node->GetPosition().get());
      if ( !paramSet.insert( epos->GetUParameter() ).second )
        return false; // equal parameters
    }
  }
  // add vertex nodes params
  TopoDS_Vertex V1,V2;
  TopExp::Vertices( theEdge, V1, V2);
  if ( VertexNode( V1, theMesh ) &&
       !paramSet.insert( BRep_Tool::Parameter(V1,theEdge) ).second )
    return false; // there are equal parameters
  if ( VertexNode( V2, theMesh ) &&
       !paramSet.insert( BRep_Tool::Parameter(V2,theEdge) ).second )
    return false; // there are equal parameters

  // fill the vector
  theParams.resize( paramSet.size() );
  set < double >::iterator   par    = paramSet.begin();
  vector< double >::iterator vecPar = theParams.begin();
  for ( ; par != paramSet.end(); ++par, ++vecPar )
    *vecPar = *par;

  return theParams.size() > 1;
}
StdMeshers_FaceSide *
StdMeshers_CompositeSegment_1D::GetFaceSide(SMESH_Mesh&        aMesh,
                                            const TopoDS_Edge& anEdge,
                                            const TopoDS_Face& aFace,
                                            const bool         ignoreMeshed)
{
  list< TopoDS_Edge > edges;
  edges.push_back( anEdge );

  list <const SMESHDS_Hypothesis *> hypList;
  SMESH_Algo* theAlgo = aMesh.GetGen()->GetAlgo( aMesh, anEdge );
  if ( theAlgo ) hypList = theAlgo->GetUsedHypothesis(aMesh, anEdge, false);
  for ( int forward = 0; forward < 2; ++forward )
  {
    TopoDS_Edge eNext = nextC1Edge( anEdge, aMesh, forward );
    while ( !eNext.IsNull() ) {
      if ( ignoreMeshed ) {
        // eNext must not have computed mesh
        if ( SMESHDS_SubMesh* sm = aMesh.GetMeshDS()->MeshElements(eNext) )
          if ( sm->NbNodes() || sm->NbElements() )
            break;
      }
      // eNext must have same hypotheses
      SMESH_Algo* algo = aMesh.GetGen()->GetAlgo( aMesh, eNext );
      if ( !algo ||
           string(theAlgo->GetName()) != algo->GetName() ||
           hypList != algo->GetUsedHypothesis(aMesh, eNext, false))
        break;
      if ( forward )
        edges.push_back( eNext );
      else
        edges.push_front( eNext );
      eNext = nextC1Edge( eNext, aMesh, forward );
    }
  }
  return new StdMeshers_FaceSide( aFace, edges, &aMesh, true, false );
}
Пример #11
0
void Edgecluster::Perform(const TopoDS_Edge& edge)
{
    if ( edge.IsNull() )
        return;
    TopoDS_Vertex V1,V2;
    TopExp::Vertices(edge,V1,V2);
    gp_Pnt P1 = BRep_Tool::Pnt(V1);
    gp_Pnt P2 = BRep_Tool::Pnt(V2);

    tEdgeVector emptyList;

    std::pair<tMapPntEdge::iterator,bool> iter = m_vertices.insert(tMapPntEdgePair(P1,emptyList));
    iter.first->second.push_back(edge);
    iter = m_vertices.insert(tMapPntEdgePair(P2,emptyList));
    iter.first->second.push_back(edge);
}
int convert_to_ifc(const TopoDS_Edge& e, IfcSchema::IfcEdge*& edge, bool advanced) {
	double a, b;

	TopExp_Explorer exp(e, TopAbs_VERTEX);
	if (!exp.More()) return 0;
	TopoDS_Vertex v1 = TopoDS::Vertex(exp.Current());
	exp.Next();
	if (!exp.More()) return 0;
	TopoDS_Vertex v2 = TopoDS::Vertex(exp.Current());

	IfcSchema::IfcVertex *vertex1, *vertex2;
	if (!(convert_to_ifc(v1, vertex1, advanced) && convert_to_ifc(v2, vertex2, advanced))) {
		return 0;
	}

	Handle_Geom_Curve crv = BRep_Tool::Curve(e, a, b);

	if (crv.IsNull()) {
		return 0;
	}

	if (crv->DynamicType() == STANDARD_TYPE(Geom_Line) && !advanced) {
		IfcSchema::IfcEdge* edge2 = new IfcSchema::IfcEdge(vertex1, vertex2);
		edge = new IfcSchema::IfcOrientedEdge(edge2, true);
		return 1;
	} else {
		IfcSchema::IfcCurve* curve;
		if (!convert_to_ifc(crv, curve, advanced)) {
			return 0;
		}
		/// @todo probably not correct
		const bool sense = e.Orientation() == TopAbs_FORWARD;
		IfcSchema::IfcEdge* edge2 = new IfcSchema::IfcEdgeCurve(vertex1, vertex2, curve, true);
		edge = new IfcSchema::IfcOrientedEdge(edge2, sense);
		return 1;
	}
}
Пример #13
0
App::DocumentObjectExecReturn *Draft::execute(void)
{
    // Get parameters
    // Base shape
    Part::TopoShape TopShape;
    try {
        TopShape = getBaseShape();
    } catch (Base::Exception& e) {
        return new App::DocumentObjectExecReturn(e.what());
    }

    // Faces where draft should be applied
    // Note: Cannot be const reference currently because of BRepOffsetAPI_DraftAngle::Remove() bug, see below
    std::vector<std::string> SubVals = Base.getSubValuesStartsWith("Face");
    if (SubVals.size() == 0)
        return new App::DocumentObjectExecReturn("No faces specified");

    // Draft angle
    double angle = Angle.getValue() / 180.0 * M_PI;

    // Pull direction
    gp_Dir pullDirection;
    App::DocumentObject* refDirection = PullDirection.getValue();    
    if (refDirection != NULL) {
        if (refDirection->getTypeId().isDerivedFrom(PartDesign::Line::getClassTypeId())) {
                    PartDesign::Line* line = static_cast<PartDesign::Line*>(refDirection);
                    Base::Vector3d d = line->getDirection();
                    pullDirection = gp_Dir(d.x, d.y, d.z);
        } else if (refDirection->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId())) {
            std::vector<std::string> subStrings = PullDirection.getSubValues();
            if (subStrings.empty() || subStrings[0].empty())
                throw Base::Exception("No pull direction reference specified");

            Part::Feature* refFeature = static_cast<Part::Feature*>(refDirection);
            Part::TopoShape refShape = refFeature->Shape.getShape();
            TopoDS_Shape ref = refShape.getSubShape(subStrings[0].c_str());

            if (ref.ShapeType() == TopAbs_EDGE) {
                TopoDS_Edge refEdge = TopoDS::Edge(ref);
                if (refEdge.IsNull())
                    throw Base::Exception("Failed to extract pull direction reference edge");
                BRepAdaptor_Curve adapt(refEdge);
                if (adapt.GetType() != GeomAbs_Line)
                    throw Base::Exception("Pull direction reference edge must be linear");

                pullDirection = adapt.Line().Direction();
            } else {
                throw Base::Exception("Pull direction reference must be an edge or a datum line");
            }
        } else {
            throw Base::Exception("Pull direction reference must be an edge of a feature or a datum line");
        }

        TopLoc_Location invObjLoc = this->getLocation().Inverted();
        pullDirection.Transform(invObjLoc.Transformation());
    }

    // Neutral plane
    gp_Pln neutralPlane;
    App::DocumentObject* refPlane = NeutralPlane.getValue();
    if (refPlane == NULL) {
        // Try to guess a neutral plane from the first selected face
        // Get edges of first selected face
        TopoDS_Shape face = TopShape.getSubShape(SubVals[0].c_str());
        TopTools_IndexedMapOfShape mapOfEdges;
        TopExp::MapShapes(face, TopAbs_EDGE, mapOfEdges);
        bool found = false;

        for (int i = 1; i <= mapOfEdges.Extent(); i++) {
            // Note: What happens if mapOfEdges(i) is the degenerated edge of a cone?
            // But in that case the draft is not possible anyway!
            BRepAdaptor_Curve c(TopoDS::Edge(mapOfEdges(i)));
            gp_Pnt p1 = c.Value(c.FirstParameter());
            gp_Pnt p2 = c.Value(c.LastParameter());

            if (c.IsClosed()) {
                // Edge is a circle or a circular arc (other types are not allowed for drafting)
                neutralPlane = gp_Pln(p1, c.Circle().Axis().Direction());
                found = true;
                break;
            } else {
                // Edge is linear
                // Find midpoint of edge and create auxiliary plane through midpoint normal to edge
                gp_Pnt pm = c.Value((c.FirstParameter() + c.LastParameter()) / 2.0);
                Handle(Geom_Plane) aux = new Geom_Plane(pm, gp_Dir(p2.X() - p1.X(), p2.Y() - p1.Y(), p2.Z() - p1.Z()));
                // Intersect plane with face. Is there no easier way?
                BRepAdaptor_Surface adapt(TopoDS::Face(face), Standard_False);
                Handle(Geom_Surface) sf = adapt.Surface().Surface();
                GeomAPI_IntSS intersector(aux, sf, Precision::Confusion());
                if (!intersector.IsDone())
                    continue;
                Handle(Geom_Curve) icurve = intersector.Line(1);
                if (!icurve->IsKind(STANDARD_TYPE(Geom_Line)))
                    continue;
                // TODO: How to extract the line from icurve without creating an edge first?
                TopoDS_Edge edge = BRepBuilderAPI_MakeEdge(icurve);
                BRepAdaptor_Curve c(edge);
                neutralPlane = gp_Pln(pm, c.Line().Direction());
                found = true;
                break;
            }
        }

        if (!found)
            throw Base::Exception("No neutral plane specified and none can be guessed");
    } else {
        if (refPlane->getTypeId().isDerivedFrom(PartDesign::Plane::getClassTypeId())) {
            PartDesign::Plane* plane = static_cast<PartDesign::Plane*>(refPlane);
            Base::Vector3d b = plane->getBasePoint();
            Base::Vector3d n = plane->getNormal();
            neutralPlane = gp_Pln(gp_Pnt(b.x, b.y, b.z), gp_Dir(n.x, n.y, n.z));
        } else if (refPlane->getTypeId().isDerivedFrom(App::Plane::getClassTypeId())) {
            neutralPlane = Feature::makePlnFromPlane(refPlane);
        } else if (refPlane->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId())) {
            std::vector<std::string> subStrings = NeutralPlane.getSubValues();
            if (subStrings.empty() || subStrings[0].empty())
                throw Base::Exception("No neutral plane reference specified");

            Part::Feature* refFeature = static_cast<Part::Feature*>(refPlane);
            Part::TopoShape refShape = refFeature->Shape.getShape();
            TopoDS_Shape ref = refShape.getSubShape(subStrings[0].c_str());

            if (ref.ShapeType() == TopAbs_FACE) {
                TopoDS_Face refFace = TopoDS::Face(ref);
                if (refFace.IsNull())
                    throw Base::Exception("Failed to extract neutral plane reference face");
                BRepAdaptor_Surface adapt(refFace);
                if (adapt.GetType() != GeomAbs_Plane)
                    throw Base::Exception("Neutral plane reference face must be planar");

                neutralPlane = adapt.Plane();
            } else if (ref.ShapeType() == TopAbs_EDGE) {
                if (refDirection != NULL) {
                    // Create neutral plane through edge normal to pull direction
                    TopoDS_Edge refEdge = TopoDS::Edge(ref);
                    if (refEdge.IsNull())
                        throw Base::Exception("Failed to extract neutral plane reference edge");
                    BRepAdaptor_Curve c(refEdge);
                    if (c.GetType() != GeomAbs_Line)
                        throw Base::Exception("Neutral plane reference edge must be linear");
                    double a = c.Line().Angle(gp_Lin(c.Value(c.FirstParameter()), pullDirection));
                    if (std::fabs(a - M_PI_2) > Precision::Confusion())
                        throw Base::Exception("Neutral plane reference edge must be normal to pull direction");
                    neutralPlane = gp_Pln(c.Value(c.FirstParameter()), pullDirection);
                } else {
                    throw Base::Exception("Neutral plane reference can only be an edge if pull direction is defined");
                }
            } else {
                throw Base::Exception("Neutral plane reference must be a face");
            }
        } else {
            throw Base::Exception("Neutral plane reference must be face of a feature or a datum plane");
        }

        TopLoc_Location invObjLoc = this->getLocation().Inverted();
        neutralPlane.Transform(invObjLoc.Transformation());
    }

    if (refDirection == NULL) {
        // Choose pull direction normal to neutral plane
        pullDirection = neutralPlane.Axis().Direction();
    }

    // Reversed pull direction
    bool reversed = Reversed.getValue();
    if (reversed)
        angle *= -1.0;

    this->positionByBaseFeature();
    // create an untransformed copy of the base shape
    Part::TopoShape baseShape(TopShape);
    baseShape.setTransform(Base::Matrix4D());
    try {
        BRepOffsetAPI_DraftAngle mkDraft;
        // Note:
        // LocOpe_SplitDrafts can split a face with a wire and apply draft to both parts
        //       Not clear though whether the face must have free boundaries
        // LocOpe_DPrism can create a stand-alone draft prism. The sketch can only have a single
        //       wire, though.
        // BRepFeat_MakeDPrism requires a support for the operation but will probably support multiple
        //       wires in the sketch

        bool success;

        do {
            success = true;
            mkDraft.Init(baseShape.getShape());

            for (std::vector<std::string>::iterator it=SubVals.begin(); it != SubVals.end(); ++it) {
                TopoDS_Face face = TopoDS::Face(baseShape.getSubShape(it->c_str()));
                // TODO: What is the flag for?
                mkDraft.Add(face, pullDirection, angle, neutralPlane);
                if (!mkDraft.AddDone()) {
                    // Note: the function ProblematicShape returns the face on which the error occurred
                    // Note: mkDraft.Remove() stumbles on a bug in Draft_Modification::Remove() and is
                    //       therefore unusable. See http://forum.freecadweb.org/viewtopic.php?f=10&t=3209&start=10#p25341
                    //       The only solution is to discard mkDraft and start over without the current face
                    // mkDraft.Remove(face);
                    Base::Console().Error("Adding face failed on %s. Omitted\n", it->c_str());
                    success = false;
                    SubVals.erase(it);
                    break;
                }
            }
        }
        while (!success);

        mkDraft.Build();
        if (!mkDraft.IsDone())
            return new App::DocumentObjectExecReturn("Failed to create draft");

        TopoDS_Shape shape = mkDraft.Shape();
        if (shape.IsNull())
            return new App::DocumentObjectExecReturn("Resulting shape is null");

        this->Shape.setValue(getSolid(shape));
        return App::DocumentObject::StdReturn;
    }
    catch (Standard_Failure) {
        Handle(Standard_Failure) e = Standard_Failure::Caught();
        return new App::DocumentObjectExecReturn(e->GetMessageString());
    }
}
Пример #14
0
void ProfileBased::getAxis(const App::DocumentObject *pcReferenceAxis, const std::vector<std::string> &subReferenceAxis,
                          Base::Vector3d& base, Base::Vector3d& dir)
{
    dir = Base::Vector3d(0,0,0); // If unchanged signals that no valid axis was found
    if (pcReferenceAxis == NULL)
        return;

    App::DocumentObject* profile = Profile.getValue();
    gp_Pln sketchplane;

    if (profile->getTypeId().isDerivedFrom(Part::Part2DObject::getClassTypeId())) {
        Part::Part2DObject* sketch = getVerifiedSketch();
        Base::Placement SketchPlm = sketch->Placement.getValue();
        Base::Vector3d SketchVector = Base::Vector3d(0, 0, 1);
        Base::Rotation SketchOrientation = SketchPlm.getRotation();
        SketchOrientation.multVec(SketchVector, SketchVector);
        Base::Vector3d SketchPos = SketchPlm.getPosition();
        sketchplane = gp_Pln(gp_Pnt(SketchPos.x, SketchPos.y, SketchPos.z), gp_Dir(SketchVector.x, SketchVector.y, SketchVector.z));

        if (pcReferenceAxis == profile) {
            bool hasValidAxis = false;
            Base::Axis axis;
            if (subReferenceAxis[0] == "V_Axis") {
                hasValidAxis = true;
                axis = sketch->getAxis(Part::Part2DObject::V_Axis);
            }
            else if (subReferenceAxis[0] == "H_Axis") {
                hasValidAxis = true;
                axis = sketch->getAxis(Part::Part2DObject::H_Axis);
            }
            else if (subReferenceAxis[0].size() > 4 && subReferenceAxis[0].substr(0, 4) == "Axis") {
                int AxId = std::atoi(subReferenceAxis[0].substr(4, 4000).c_str());
                if (AxId >= 0 && AxId < sketch->getAxisCount()) {
                    hasValidAxis = true;
                    axis = sketch->getAxis(AxId);
                }
            }
            if (hasValidAxis) {
                axis *= SketchPlm;
                base = axis.getBase();
                dir = axis.getDirection();
                return;
            } //else - an edge of the sketch was selected as an axis
        }

    }
    else if (profile->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId())) {
        Base::Placement SketchPlm = getVerifiedObject()->Placement.getValue();
        Base::Vector3d SketchVector = getProfileNormal();
        Base::Vector3d SketchPos = SketchPlm.getPosition();
        sketchplane = gp_Pln(gp_Pnt(SketchPos.x, SketchPos.y, SketchPos.z), gp_Dir(SketchVector.x, SketchVector.y, SketchVector.z));
    }

    // get reference axis
    if (pcReferenceAxis->getTypeId().isDerivedFrom(PartDesign::Line::getClassTypeId())) {
        const PartDesign::Line* line = static_cast<const PartDesign::Line*>(pcReferenceAxis);
        base = line->getBasePoint();
        dir = line->getDirection();

        // Check that axis is perpendicular with sketch plane!
        if (sketchplane.Axis().Direction().IsParallel(gp_Dir(dir.x, dir.y, dir.z), Precision::Angular()))
            throw Base::ValueError("Rotation axis must not be perpendicular with the sketch plane");
        return;
    }

    if (pcReferenceAxis->getTypeId().isDerivedFrom(App::Line::getClassTypeId())) {
        const App::Line* line = static_cast<const App::Line*>(pcReferenceAxis);
        base = Base::Vector3d(0,0,0);
        line->Placement.getValue().multVec(Base::Vector3d (1,0,0), dir);

        // Check that axis is perpendicular with sketch plane!
        if (sketchplane.Axis().Direction().IsParallel(gp_Dir(dir.x, dir.y, dir.z), Precision::Angular()))
            throw Base::ValueError("Rotation axis must not be perpendicular with the sketch plane");
        return;
    }

    if (pcReferenceAxis->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId())) {
        if (subReferenceAxis.empty())
            throw Base::ValueError("No rotation axis reference specified");
        const Part::Feature* refFeature = static_cast<const Part::Feature*>(pcReferenceAxis);
        Part::TopoShape refShape = refFeature->Shape.getShape();
        TopoDS_Shape ref = refShape.getSubShape(subReferenceAxis[0].c_str());

        if (ref.ShapeType() == TopAbs_EDGE) {
            TopoDS_Edge refEdge = TopoDS::Edge(ref);
            if (refEdge.IsNull())
                throw Base::ValueError("Failed to extract rotation edge");
            BRepAdaptor_Curve adapt(refEdge);
            if (adapt.GetType() != GeomAbs_Line)
                throw Base::TypeError("Rotation edge must be a straight line");

            gp_Pnt b = adapt.Line().Location();
            base = Base::Vector3d(b.X(), b.Y(), b.Z());
            gp_Dir d = adapt.Line().Direction();
            dir = Base::Vector3d(d.X(), d.Y(), d.Z());
            // Check that axis is co-planar with sketch plane!
            // Check that axis is perpendicular with sketch plane!
            if (sketchplane.Axis().Direction().IsParallel(d, Precision::Angular()))
                throw Base::ValueError("Rotation axis must not be perpendicular with the sketch plane");
            return;
        } else {
            throw Base::TypeError("Rotation reference must be an edge");
        }
    }

    throw Base::TypeError("Rotation axis reference is invalid");
}
const std::list<gp_Trsf> LinearPattern::getTransformations(const std::vector<App::DocumentObject*>)
{
    std::string stdDirection = StdDirection.getValue();
    float distance = Length.getValue();
    if (distance < Precision::Confusion())
        throw Base::Exception("Pattern length too small");
    int occurrences = Occurrences.getValue();
    if (occurrences < 2)
        throw Base::Exception("At least two occurrences required");
    bool reversed = Reversed.getValue();

    gp_Dir dir;
    double offset = distance / (occurrences - 1);

    if (!stdDirection.empty()) {
        // Note: The placement code commented out below had the defect of working always on the
        // absolute X,Y,Z direction, not on the relative coordinate system of the Body feature.
        // It requires positionBySupport() to be called in Transformed::Execute() AFTER
        // the call to getTransformations()
        // New code thanks to logari81
        if (stdDirection == "X") {
            //dir = Base::Axis(Base::Vector3d(0,0,0), Base::Vector3d(1,0,0));
            dir = gp_Dir(1,0,0);
        } else if (stdDirection == "Y") {
            //dir = Base::Axis(Base::Vector3d(0,0,0), Base::Vector3d(0,1,0));
            dir = gp_Dir(0,1,0);
        } else if(stdDirection == "Z") {
            //dir = Base::Axis(Base::Vector3d(0,0,0), Base::Vector3d(0,0,1));
            dir = gp_Dir(0,0,1);
        } else {
            throw Base::Exception("Invalid direction (must be X, Y or Z)");
        }
    } else {
        App::DocumentObject* refObject = Direction.getValue();
        if (refObject == NULL)
            throw Base::Exception("No direction specified");
        if (!refObject->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId()))
            throw Base::Exception("Direction reference must be edge or face of a feature");
        std::vector<std::string> subStrings = Direction.getSubValues();
        if (subStrings.empty() || subStrings[0].empty())
            throw Base::Exception("No direction reference specified");

        Part::Feature* refFeature = static_cast<Part::Feature*>(refObject);
        Part::TopoShape refShape = refFeature->Shape.getShape();
        TopoDS_Shape ref = refShape.getSubShape(subStrings[0].c_str());

        if (ref.ShapeType() == TopAbs_FACE) {
            TopoDS_Face refFace = TopoDS::Face(ref);
            if (refFace.IsNull())
                throw Base::Exception("Failed to extract direction plane");
            BRepAdaptor_Surface adapt(refFace);
            if (adapt.GetType() != GeomAbs_Plane)
                throw Base::Exception("Direction face must be planar");

            dir = adapt.Plane().Axis().Direction();
            //gp_Dir d = adapt.Plane().Axis().Direction();
            //dir = Base::Axis(Base::Vector3d(0,0,0), Base::Vector3d(d.X(), d.Y(), d.Z()));
        } else if (ref.ShapeType() == TopAbs_EDGE) {
            TopoDS_Edge refEdge = TopoDS::Edge(ref);
            if (refEdge.IsNull())
                throw Base::Exception("Failed to extract direction edge");
            BRepAdaptor_Curve adapt(refEdge);
            if (adapt.GetType() != GeomAbs_Line)
                throw Base::Exception("Direction edge must be a straight line");

            //gp_Dir d = adapt.Line().Direction();
            //dir = Base::Axis(Base::Vector3d(0,0,0), Base::Vector3d(d.X(), d.Y(), d.Z()));
            dir = adapt.Line().Direction();
        } else {
            throw Base::Exception("Direction reference must be edge or face");
        }
        TopLoc_Location invObjLoc = this->getLocation().Inverted();
        dir.Transform(invObjLoc.Transformation());
    }

    // get the support placement
    // TODO: Check for NULL pointer
    /*Part::Feature* supportFeature = static_cast<Part::Feature*>(originals.front());
    if (supportFeature == NULL)
        throw Base::Exception("Cannot work on invalid support shape");
    Base::Placement supportPlacement = supportFeature->Placement.getValue();
    dir *= supportPlacement;
    gp_Vec direction(dir.getDirection().x, dir.getDirection().y, dir.getDirection().z);*/
    gp_Vec direction(dir.X(), dir.Y(), dir.Z());

    if (reversed)
        direction.Reverse();

    // Note: The original feature is NOT included in the list of transformations! Therefore
    // we start with occurrence number 1, not number 0
    std::list<gp_Trsf> transformations;
    gp_Trsf trans;
    transformations.push_back(trans); // identity transformation

    for (int i = 1; i < occurrences; i++) {
        trans.SetTranslation(direction * i * offset);
        transformations.push_back(trans);
    }

    return transformations;
}
Пример #16
0
bool SMESH_MesherHelper::LoadNodeColumns(TParam2ColumnMap & theParam2ColumnMap,
                                         const TopoDS_Face& theFace,
                                         const TopoDS_Edge& theBaseEdge,
                                         SMESHDS_Mesh*      theMesh)
{
  // get vertices of theBaseEdge
  TopoDS_Vertex vfb, vlb, vft; // first and last, bottom and top vertices
  TopoDS_Edge eFrw = TopoDS::Edge( theBaseEdge.Oriented( TopAbs_FORWARD ));
  TopExp::Vertices( eFrw, vfb, vlb );

  // find the other edges of theFace and orientation of e1
  TopoDS_Edge e1, e2, eTop;
  bool rev1, CumOri = false;
  TopExp_Explorer exp( theFace, TopAbs_EDGE );
  int nbEdges = 0;
  for ( ; exp.More(); exp.Next() ) {
    if ( ++nbEdges > 4 ) {
      return false; // more than 4 edges in theFace
    }
    TopoDS_Edge e = TopoDS::Edge( exp.Current() );
    if ( theBaseEdge.IsSame( e ))
      continue;
    TopoDS_Vertex vCommon;
    if ( !TopExp::CommonVertex( theBaseEdge, e, vCommon ))
      eTop = e;
    else if ( vCommon.IsSame( vfb )) {
      e1 = e;
      vft = TopExp::LastVertex( e1, CumOri );
      rev1 = vfb.IsSame( vft );
      if ( rev1 )
        vft = TopExp::FirstVertex( e1, CumOri );
    }
    else
      e2 = e;
  }
  if ( nbEdges < 4 ) {
    return false; // less than 4 edges in theFace
  }
  if ( e2.IsNull() && vfb.IsSame( vlb ))
    e2 = e1;

  // submeshes corresponding to shapes
  SMESHDS_SubMesh* smFace = theMesh->MeshElements( theFace );
  SMESHDS_SubMesh* smb = theMesh->MeshElements( theBaseEdge );
  SMESHDS_SubMesh* smt = theMesh->MeshElements( eTop );
  SMESHDS_SubMesh* sm1 = theMesh->MeshElements( e1 );
  SMESHDS_SubMesh* sm2 = theMesh->MeshElements( e2 );
  SMESHDS_SubMesh* smVfb = theMesh->MeshElements( vfb );
  SMESHDS_SubMesh* smVlb = theMesh->MeshElements( vlb );
  SMESHDS_SubMesh* smVft = theMesh->MeshElements( vft );
  if (!smFace || !smb || !smt || !sm1 || !sm2 || !smVfb || !smVlb || !smVft ) {
    RETURN_BAD_RESULT( "NULL submesh " <<smFace<<" "<<smb<<" "<<smt<<" "<<
                       sm1<<" "<<sm2<<" "<<smVfb<<" "<<smVlb<<" "<<smVft);
  }
  if ( smb->NbNodes() != smt->NbNodes() || sm1->NbNodes() != sm2->NbNodes() ) {
    RETURN_BAD_RESULT(" Diff nb of nodes on opposite edges" );
  }
  if (smVfb->NbNodes() != 1 || smVlb->NbNodes() != 1 || smVft->NbNodes() != 1) {
    RETURN_BAD_RESULT("Empty submesh of vertex");
  }
  // define whether mesh is quadratic
  bool isQuadraticMesh = false;
  SMDS_ElemIteratorPtr eIt = smFace->GetElements();
  if ( !eIt->more() ) {
    RETURN_BAD_RESULT("No elements on the face");
  }
  const SMDS_MeshElement* e = eIt->next();
  isQuadraticMesh = e->IsQuadratic();
  
  if ( sm1->NbNodes() * smb->NbNodes() != smFace->NbNodes() ) {
    // check quadratic case
    if ( isQuadraticMesh ) {
      // what if there are quadrangles and triangles mixed?
//       int n1 = sm1->NbNodes()/2;
//       int n2 = smb->NbNodes()/2;
//       int n3 = sm1->NbNodes() - n1;
//       int n4 = smb->NbNodes() - n2;
//       int nf = sm1->NbNodes()*smb->NbNodes() - n3*n4;
//       if( nf != smFace->NbNodes() ) {
//         MESSAGE( "Wrong nb face nodes: " <<
//                 sm1->NbNodes()<<" "<<smb->NbNodes()<<" "<<smFace->NbNodes());
//         return false;
//       }
    }
    else {
      RETURN_BAD_RESULT( "Wrong nb face nodes: " <<
                         sm1->NbNodes()<<" "<<smb->NbNodes()<<" "<<smFace->NbNodes());
    }
  }
  // IJ size
  int vsize = sm1->NbNodes() + 2;
  int hsize = smb->NbNodes() + 2;
  if(isQuadraticMesh) {
    vsize = vsize - sm1->NbNodes()/2 -1;
    hsize = hsize - smb->NbNodes()/2 -1;
  }

  // load nodes from theBaseEdge

  std::set<const SMDS_MeshNode*> loadedNodes;
  const SMDS_MeshNode* nullNode = 0;

  std::vector<const SMDS_MeshNode*> & nVecf = theParam2ColumnMap[ 0.];
  nVecf.resize( vsize, nullNode );
  loadedNodes.insert( nVecf[ 0 ] = smVfb->GetNodes()->next() );

  std::vector<const SMDS_MeshNode*> & nVecl = theParam2ColumnMap[ 1.];
  nVecl.resize( vsize, nullNode );
  loadedNodes.insert( nVecl[ 0 ] = smVlb->GetNodes()->next() );

  double f, l;
  BRep_Tool::Range( eFrw, f, l );
  double range = l - f;
  SMDS_NodeIteratorPtr nIt = smb->GetNodes();
  const SMDS_MeshNode* node;
  while ( nIt->more() ) {
    node = nIt->next();
    if(IsMedium(node, SMDSAbs_Edge))
      continue;
    const SMDS_EdgePosition* pos =
      dynamic_cast<const SMDS_EdgePosition*>( node->GetPosition().get() );
    if ( !pos ) {
      return false;
    }
    double u = ( pos->GetUParameter() - f ) / range;
    std::vector<const SMDS_MeshNode*> & nVec = theParam2ColumnMap[ u ];
    nVec.resize( vsize, nullNode );
    loadedNodes.insert( nVec[ 0 ] = node );
  }
  if ( theParam2ColumnMap.size() != hsize ) {
    RETURN_BAD_RESULT( "Wrong node positions on theBaseEdge" );
  }

  // load nodes from e1

  std::map< double, const SMDS_MeshNode*> sortedNodes; // sort by param on edge
  nIt = sm1->GetNodes();
  while ( nIt->more() ) {
    node = nIt->next();
    if(IsMedium(node))
      continue;
    const SMDS_EdgePosition* pos =
      dynamic_cast<const SMDS_EdgePosition*>( node->GetPosition().get() );
    if ( !pos ) {
      return false;
    }
    sortedNodes.insert( std::make_pair( pos->GetUParameter(), node ));
  }
  loadedNodes.insert( nVecf[ vsize - 1 ] = smVft->GetNodes()->next() );
  std::map< double, const SMDS_MeshNode*>::iterator u_n = sortedNodes.begin();
  int row  = rev1 ? vsize - 1 : 0;
  int dRow = rev1 ? -1 : +1;
  for ( ; u_n != sortedNodes.end(); u_n++ ) {
    row += dRow;
    loadedNodes.insert( nVecf[ row ] = u_n->second );
  }

  // try to load the rest nodes

  // get all faces from theFace
  TIDSortedElemSet allFaces, foundFaces;
  eIt = smFace->GetElements();
  while ( eIt->more() ) {
    const SMDS_MeshElement* e = eIt->next();
    if ( e->GetType() == SMDSAbs_Face )
      allFaces.insert( e );
  }
  // Starting from 2 neighbour nodes on theBaseEdge, look for a face
  // the nodes belong to, and between the nodes of the found face,
  // look for a not loaded node considering this node to be the next
  // in a column of the starting second node. Repeat, starting
  // from nodes next to the previous starting nodes in their columns,
  // and so on while a face can be found. Then go the the next pair
  // of nodes on theBaseEdge.
  TParam2ColumnMap::iterator par_nVec_1 = theParam2ColumnMap.begin();
  TParam2ColumnMap::iterator par_nVec_2 = par_nVec_1;
  // loop on columns
  int col = 0;
  for ( par_nVec_2++; par_nVec_2 != theParam2ColumnMap.end(); par_nVec_1++, par_nVec_2++ ) {
    col++;
    row = 0;
    const SMDS_MeshNode* n1 = par_nVec_1->second[ row ];
    const SMDS_MeshNode* n2 = par_nVec_2->second[ row ];
    const SMDS_MeshElement* face = 0;
    bool lastColOnClosedFace = ( nVecf[ row ] == n2 );
    do {
      // look for a face by 2 nodes
      face = SMESH_MeshEditor::FindFaceInSet( n1, n2, allFaces, foundFaces );
      if ( face ) {
        int nbFaceNodes = face->NbNodes();
        if ( face->IsQuadratic() )
          nbFaceNodes /= 2;
        if ( nbFaceNodes>4 ) {
          RETURN_BAD_RESULT(" Too many nodes in a face: " << nbFaceNodes );
        }
        // look for a not loaded node of the <face>
        bool found = false;
        const SMDS_MeshNode* n3 = 0; // a node defferent from n1 and n2
        for ( int i = 0; i < nbFaceNodes && !found; ++i ) {
          node = face->GetNode( i );
          found = loadedNodes.insert( node ).second;
          if ( !found && node != n1 && node != n2 )
            n3 = node;
        }
        if ( lastColOnClosedFace && row + 1 < vsize ) {
          node = nVecf[ row + 1 ];
          found = ( face->GetNodeIndex( node ) >= 0 );
        }
        if ( found ) {
          if ( ++row > vsize - 1 ) {
            RETURN_BAD_RESULT( "Too many nodes in column "<< col <<": "<< row+1);
          }
          par_nVec_2->second[ row ] = node;
          foundFaces.insert( face );
          n2 = node;
          if ( nbFaceNodes==4 ) {
            n1 = par_nVec_1->second[ row ];
          }
        }
        else if ( nbFaceNodes==3 && n3 == par_nVec_1->second[ row + 1 ] ) {
          n1 = n3;
        }
        else  {
          RETURN_BAD_RESULT( "Not quad mesh, column "<< col );
        }
      }
    }
    while ( face && n1 && n2 );

    if ( row < vsize - 1 ) {
      MESSAGE( "Too few nodes in column "<< col <<": "<< row+1);
      MESSAGE( "Base node 1: "<< par_nVec_1->second[0]);
      MESSAGE( "Base node 2: "<< par_nVec_2->second[0]);
      if ( n1 ) { MESSAGE( "Current node 1: "<< n1); }
      else      { MESSAGE( "Current node 1: NULL");  }
      if ( n2 ) { MESSAGE( "Current node 2: "<< n2); }
      else      { MESSAGE( "Current node 2: NULL");  }
      MESSAGE( "first base node: "<< theParam2ColumnMap.begin()->second[0]);
      MESSAGE( "last base node: "<< theParam2ColumnMap.rbegin()->second[0]);
      return false;
    }
  } // loop on columns

  return true;
}
//=============================================================================
bool NETGENPlugin_Mesher::Compute()
{
#ifdef WNT
  netgen::MeshingParameters& mparams = netgen::GlobalMeshingParameters();
#else
  netgen::MeshingParameters& mparams = netgen::mparam;
#endif  
  MESSAGE("Compute with:\n"
          " max size = " << mparams.maxh << "\n"
          " segments per edge = " << mparams.segmentsperedge);
  MESSAGE("\n"
          " growth rate = " << mparams.grading << "\n"
          " elements per radius = " << mparams.curvaturesafety << "\n"
          " second order = " << mparams.secondorder << "\n"
          " quad allowed = " << mparams.quad);

  SMESH_ComputeErrorPtr error = SMESH_ComputeError::New();
  nglib::Ng_Init();

  // -------------------------
  // Prepare OCC geometry
  // -------------------------

  netgen::OCCGeometry occgeo;
  list< SMESH_subMesh* > meshedSM;
  PrepareOCCgeometry( occgeo, _shape, *_mesh, &meshedSM );

  // -------------------------
  // Generate the mesh
  // -------------------------

  netgen::Mesh *ngMesh = NULL;

  SMESH_Comment comment;
  int err = 0;
  int nbInitNod = 0;
  int nbInitSeg = 0;
  int nbInitFac = 0;
  // vector of nodes in which node index == netgen ID
  vector< SMDS_MeshNode* > nodeVec;
  try
  {
    // ----------------
    // compute 1D mesh
    // ----------------
    // pass 1D simple parameters to NETGEN
    if ( _simpleHyp ) {
      if ( int nbSeg = _simpleHyp->GetNumberOfSegments() ) {
        // nb of segments
        mparams.segmentsperedge = nbSeg + 0.1;
        mparams.maxh = occgeo.boundingbox.Diam();
        mparams.grading = 0.01;
      }
      else {
        // segment length
        mparams.segmentsperedge = 1;
        mparams.maxh = _simpleHyp->GetLocalLength();
      }
    }
    // let netgen create ngMesh and calculate element size on not meshed shapes
    char *optstr = 0;
    int startWith = netgen::MESHCONST_ANALYSE;
    int endWith   = netgen::MESHCONST_ANALYSE;
    err = netgen::OCCGenerateMesh(occgeo, ngMesh, startWith, endWith, optstr);
    if (err) comment << "Error in netgen::OCCGenerateMesh() at MESHCONST_ANALYSE step";

    // fill ngMesh with nodes and elements of computed submeshes
    err = ! fillNgMesh(occgeo, *ngMesh, nodeVec, meshedSM);
    nbInitNod = ngMesh->GetNP();
    nbInitSeg = ngMesh->GetNSeg();
    nbInitFac = ngMesh->GetNSE();

    // compute mesh
    if (!err)
    {
      startWith = endWith = netgen::MESHCONST_MESHEDGES;
      err = netgen::OCCGenerateMesh(occgeo, ngMesh, startWith, endWith, optstr);
      if (err) comment << "Error in netgen::OCCGenerateMesh() at 1D mesh generation";
    }
    // ---------------------
    // compute surface mesh
    // ---------------------
    if (!err)
    {
      // pass 2D simple parameters to NETGEN
      if ( _simpleHyp ) {
        if ( double area = _simpleHyp->GetMaxElementArea() ) {
          // face area
          mparams.maxh = sqrt(2. * area/sqrt(3.0));
          mparams.grading = 0.4; // moderate size growth
        }
        else {
          // length from edges
          double length = 0;
          TopTools_MapOfShape tmpMap;
          for ( TopExp_Explorer exp( _shape, TopAbs_EDGE ); exp.More(); exp.Next() )
            if( tmpMap.Add(exp.Current()) )
              length += SMESH_Algo::EdgeLength( TopoDS::Edge( exp.Current() ));

          if ( ngMesh->GetNSeg() ) {
            // we have to multiply length by 2 since for each TopoDS_Edge there
            // are double set of NETGEN edges or, in other words, we have to
            // divide ngMesh->GetNSeg() on 2.
            mparams.maxh = 2*length / ngMesh->GetNSeg();
          }
          else
            mparams.maxh = 1000;
          mparams.grading = 0.2; // slow size growth
        }
        mparams.maxh = min( mparams.maxh, occgeo.boundingbox.Diam()/2 );
        ngMesh->SetGlobalH (mparams.maxh);
        netgen::Box<3> bb = occgeo.GetBoundingBox();
        bb.Increase (bb.Diam()/20);
        ngMesh->SetLocalH (bb.PMin(), bb.PMax(), mparams.grading);
      }
      // let netgen compute 2D mesh
      startWith = netgen::MESHCONST_MESHSURFACE;
      endWith = _optimize ? netgen::MESHCONST_OPTSURFACE : netgen::MESHCONST_MESHSURFACE;
      err = netgen::OCCGenerateMesh(occgeo, ngMesh, startWith, endWith, optstr);
      if (err) comment << "Error in netgen::OCCGenerateMesh() at surface mesh generation";
    }
    // ---------------------
    // generate volume mesh
    // ---------------------
    if (!err && _isVolume)
    {
      // add ng face descriptors of meshed faces
      std::map< int, std::pair<int,int> >::iterator fId_soIds = _faceDescriptors.begin();
      for ( ; fId_soIds != _faceDescriptors.end(); ++fId_soIds ) {
        int faceID   = fId_soIds->first;
        int solidID1 = fId_soIds->second.first;
        int solidID2 = fId_soIds->second.second;
        ngMesh->AddFaceDescriptor (netgen::FaceDescriptor(faceID, solidID1, solidID2, 0));
      }
      // pass 3D simple parameters to NETGEN
      const NETGENPlugin_SimpleHypothesis_3D* simple3d =
        dynamic_cast< const NETGENPlugin_SimpleHypothesis_3D* > ( _simpleHyp );
      if ( simple3d ) {
        if ( double vol = simple3d->GetMaxElementVolume() ) {
          // max volume
          mparams.maxh = pow( 72, 1/6. ) * pow( vol, 1/3. );
          mparams.maxh = min( mparams.maxh, occgeo.boundingbox.Diam()/2 );
        }
        else {
          // length from faces
          mparams.maxh = ngMesh->AverageH();
        }
//      netgen::ARRAY<double> maxhdom;
//      maxhdom.SetSize (occgeo.NrSolids());
//      maxhdom = mparams.maxh;
//      ngMesh->SetMaxHDomain (maxhdom);
        ngMesh->SetGlobalH (mparams.maxh);
        mparams.grading = 0.4;
        ngMesh->CalcLocalH();
      }
      // let netgen compute 3D mesh
      startWith = netgen::MESHCONST_MESHVOLUME;
      endWith = _optimize ? netgen::MESHCONST_OPTVOLUME : netgen::MESHCONST_MESHVOLUME;
      err = netgen::OCCGenerateMesh(occgeo, ngMesh, startWith, endWith, optstr);
      if (err) comment << "Error in netgen::OCCGenerateMesh()";
    }
    if (!err && mparams.secondorder > 0)
    {
      netgen::OCCRefinementSurfaces ref (occgeo);
      ref.MakeSecondOrder (*ngMesh);
    }
  }
  catch (netgen::NgException exc)
  {
    error->myName = err = COMPERR_ALGO_FAILED;
    comment << exc.What();
  }

  int nbNod = ngMesh->GetNP();
  int nbSeg = ngMesh->GetNSeg();
  int nbFac = ngMesh->GetNSE();
  int nbVol = ngMesh->GetNE();

  MESSAGE((err ? "Mesh Generation failure" : "End of Mesh Generation") <<
          ", nb nodes: " << nbNod <<
          ", nb segments: " << nbSeg <<
          ", nb faces: " << nbFac <<
          ", nb volumes: " << nbVol);

  // -----------------------------------------------------------
  // Feed back the SMESHDS with the generated Nodes and Elements
  // -----------------------------------------------------------

  SMESHDS_Mesh* meshDS = _mesh->GetMeshDS();
  bool isOK = ( !err && (_isVolume ? (nbVol > 0) : (nbFac > 0)) );
  if ( true /*isOK*/ ) // get whatever built
  {
    // map of nodes assigned to submeshes
    NCollection_Map<int> pindMap;
    // create and insert nodes into nodeVec
    nodeVec.resize( nbNod + 1 );
    int i;
    for (i = nbInitNod+1; i <= nbNod /*&& isOK*/; ++i )
    {
      const netgen::MeshPoint& ngPoint = ngMesh->Point(i);
      SMDS_MeshNode* node = NULL;
      bool newNodeOnVertex = false;
      TopoDS_Vertex aVert;
      if (i-nbInitNod <= occgeo.vmap.Extent())
      {
        // point on vertex
        aVert = TopoDS::Vertex(occgeo.vmap(i-nbInitNod));
        SMESHDS_SubMesh * submesh = meshDS->MeshElements(aVert);
        if (submesh)
        {
          SMDS_NodeIteratorPtr it = submesh->GetNodes();
          if (it->more())
          {
            node = const_cast<SMDS_MeshNode*> (it->next());
            pindMap.Add(i);
          }
        }
        if (!node)
          newNodeOnVertex = true;
      }
      if (!node)
        node = meshDS->AddNode(ngPoint.X(), ngPoint.Y(), ngPoint.Z());
      if (!node)
      {
        MESSAGE("Cannot create a mesh node");
        if ( !comment.size() ) comment << "Cannot create a mesh node";
        nbSeg = nbFac = nbVol = isOK = 0;
        break;
      }
      nodeVec.at(i) = node;
      if (newNodeOnVertex)
      {
        // point on vertex
        meshDS->SetNodeOnVertex(node, aVert);
        pindMap.Add(i);
      }
    }

    // create mesh segments along geometric edges
    NCollection_Map<Link> linkMap;
    for (i = nbInitSeg+1; i <= nbSeg/* && isOK*/; ++i )
    {
      const netgen::Segment& seg = ngMesh->LineSegment(i);
      Link link(seg.p1, seg.p2);
      if (linkMap.Contains(link))
        continue;
      linkMap.Add(link);
      TopoDS_Edge aEdge;
      int pinds[3] = { seg.p1, seg.p2, seg.pmid };
      int nbp = 0;
      double param2 = 0;
      for (int j=0; j < 3; ++j)
      {
        int pind = pinds[j];
        if (pind <= 0) continue;
        ++nbp;
        double param;
        if (j < 2)
        {
          if (aEdge.IsNull())
          {
            int aGeomEdgeInd = seg.epgeominfo[j].edgenr;
            if (aGeomEdgeInd > 0 && aGeomEdgeInd <= occgeo.emap.Extent())
              aEdge = TopoDS::Edge(occgeo.emap(aGeomEdgeInd));
          }
          param = seg.epgeominfo[j].dist;
          param2 += param;
        }
        else
          param = param2 * 0.5;
        if (pind <= nbInitNod || pindMap.Contains(pind))
          continue;
        if (!aEdge.IsNull())
        {
          meshDS->SetNodeOnEdge(nodeVec.at(pind), aEdge, param);
          pindMap.Add(pind);
        }
      }
      SMDS_MeshEdge* edge;
      if (nbp < 3) // second order ?
        edge = meshDS->AddEdge(nodeVec.at(pinds[0]), nodeVec.at(pinds[1]));
      else
        edge = meshDS->AddEdge(nodeVec.at(pinds[0]), nodeVec.at(pinds[1]),
                                nodeVec.at(pinds[2]));
      if (!edge)
      {
        if ( !comment.size() ) comment << "Cannot create a mesh edge";
        MESSAGE("Cannot create a mesh edge");
        nbSeg = nbFac = nbVol = isOK = 0;
        break;
      }
      if (!aEdge.IsNull())
        meshDS->SetMeshElementOnShape(edge, aEdge);
    }

    // create mesh faces along geometric faces
    for (i = nbInitFac+1; i <= nbFac/* && isOK*/; ++i )
    {
      const netgen::Element2d& elem = ngMesh->SurfaceElement(i);
      int aGeomFaceInd = elem.GetIndex();
      TopoDS_Face aFace;
      if (aGeomFaceInd > 0 && aGeomFaceInd <= occgeo.fmap.Extent())
        aFace = TopoDS::Face(occgeo.fmap(aGeomFaceInd));
      vector<SMDS_MeshNode*> nodes;
      for (int j=1; j <= elem.GetNP(); ++j)
      {
        int pind = elem.PNum(j);
        SMDS_MeshNode* node = nodeVec.at(pind);
        nodes.push_back(node);
        if (pind <= nbInitNod || pindMap.Contains(pind))
          continue;
        if (!aFace.IsNull())
        {
          const netgen::PointGeomInfo& pgi = elem.GeomInfoPi(j);
          meshDS->SetNodeOnFace(node, aFace, pgi.u, pgi.v);
          pindMap.Add(pind);
        }
      }
      SMDS_MeshFace* face = NULL;
      switch (elem.GetType())
      {
      case netgen::TRIG:
        face = meshDS->AddFace(nodes[0],nodes[1],nodes[2]);
        break;
      case netgen::QUAD:
        face = meshDS->AddFace(nodes[0],nodes[1],nodes[2],nodes[3]);
        break;
      case netgen::TRIG6:
        face = meshDS->AddFace(nodes[0],nodes[1],nodes[2],nodes[5],nodes[3],nodes[4]);
        break;
      case netgen::QUAD8:
        face = meshDS->AddFace(nodes[0],nodes[1],nodes[2],nodes[3],
                               nodes[4],nodes[7],nodes[5],nodes[6]);
        break;
      default:
        MESSAGE("NETGEN created a face of unexpected type, ignoring");
        continue;
      }
      if (!face)
      {
        if ( !comment.size() ) comment << "Cannot create a mesh face";
        MESSAGE("Cannot create a mesh face");
        nbSeg = nbFac = nbVol = isOK = 0;
        break;
      }
      if (!aFace.IsNull())
        meshDS->SetMeshElementOnShape(face, aFace);
    }

    // create tetrahedra
    for (i = 1; i <= nbVol/* && isOK*/; ++i)
    {
      const netgen::Element& elem = ngMesh->VolumeElement(i);      
      int aSolidInd = elem.GetIndex();
      TopoDS_Solid aSolid;
      if (aSolidInd > 0 && aSolidInd <= occgeo.somap.Extent())
        aSolid = TopoDS::Solid(occgeo.somap(aSolidInd));
      vector<SMDS_MeshNode*> nodes;
      for (int j=1; j <= elem.GetNP(); ++j)
      {
        int pind = elem.PNum(j);
        SMDS_MeshNode* node = nodeVec.at(pind);
        nodes.push_back(node);
        if (pind <= nbInitNod || pindMap.Contains(pind))
          continue;
        if (!aSolid.IsNull())
        {
          // point in solid
          meshDS->SetNodeInVolume(node, aSolid);
          pindMap.Add(pind);
        }
      }
      SMDS_MeshVolume* vol = NULL;
      switch (elem.GetType())
      {
      case netgen::TET:
        vol = meshDS->AddVolume(nodes[0],nodes[1],nodes[2],nodes[3]);
        break;
      case netgen::TET10:
        vol = meshDS->AddVolume(nodes[0],nodes[1],nodes[2],nodes[3],
                                nodes[4],nodes[7],nodes[5],nodes[6],nodes[8],nodes[9]);
        break;
      default:
        MESSAGE("NETGEN created a volume of unexpected type, ignoring");
        continue;
      }
      if (!vol)
      {
        if ( !comment.size() ) comment << "Cannot create a mesh volume";
        MESSAGE("Cannot create a mesh volume");
        nbSeg = nbFac = nbVol = isOK = 0;
        break;
      }
      if (!aSolid.IsNull())
        meshDS->SetMeshElementOnShape(vol, aSolid);
    }
  }

  if ( error->IsOK() && ( !isOK || comment.size() > 0 ))
    error->myName = COMPERR_ALGO_FAILED;
  if ( !comment.empty() )
    error->myComment = comment;

  // set bad compute error to subshapes of all failed subshapes shapes
  if ( !error->IsOK() && err )
  {
    for (int i = 1; i <= occgeo.fmap.Extent(); i++) {
      int status = occgeo.facemeshstatus[i-1];
      if (status == 1 ) continue;
      if ( SMESH_subMesh* sm = _mesh->GetSubMeshContaining( occgeo.fmap( i ))) {
        SMESH_ComputeErrorPtr& smError = sm->GetComputeError();
        if ( !smError || smError->IsOK() ) {
          if ( status == -1 )
            smError.reset( new SMESH_ComputeError( error->myName, error->myComment ));
          else
            smError.reset( new SMESH_ComputeError( COMPERR_ALGO_FAILED, "Ignored" ));
        }
      }
    }
  }

  nglib::Ng_DeleteMesh((nglib::Ng_Mesh*)ngMesh);
  nglib::Ng_Exit();

  RemoveTmpFiles();

  return error->IsOK();
}
bool RoomLayoutPillarController::PreRender3D()
{
	auto& imp_ = *ImpUPtr_;

	plane3df plan(0,0,0,0,1,0);
	auto line = GetRenderContextSPtr()->Smgr_->getSceneCollisionManager()->getRayFromScreenCoordinates(imp_.CursorIPos_);
	plan.getIntersectionWithLine(line.start, line.getVector(), imp_.CurrentPos_);
	imp_.CurrentPos_.Y = 0;
	gp_Pnt cursorPnt(imp_.CurrentPos_.X, imp_.CurrentPos_.Y, imp_.CurrentPos_.Z);

	switch (imp_.State_)
	{
	case EPilarState::EPS_SWEEPING:
		{
			if ( GetPickingODL().expired() )
			{
				break;
			}

			auto activePilar = std::static_pointer_cast<PillarODL>(GetPickingODL().lock());

			activePilar->SetSweeping(true);

			if ( imp_.CtrllHolding_ )
			{
				imp_.State_ = EPilarState::EPS_MODIFY_INIT;
				break;
			}

			if ( imp_.LMousePressDown_ )
			{
				auto box = activePilar->GetBaseBndBox();
				auto pos = activePilar->GetTranslation();

				Standard_Real xMin,xMax,yMin,yMax,zMin,zMax;
				box.Get(xMin, yMin, zMin, xMax, yMax, zMax);

				imp_.EventInfo_ = SEventPillarInfo();
				imp_.EventInfo_->XLength_ = static_cast<float>(xMax-xMin);
				imp_.EventInfo_->YLength_ = static_cast<float>(yMax-yMin);
				imp_.EventInfo_->ZLength_ = static_cast<float>(zMax-zMin);
				imp_.EventInfo_->OffsetHeight_ = activePilar->GetOffsetHeight();

				imp_.SavePos_ = imp_.CurrentPos_;
				imp_.State_ = EPilarState::EPS_MOUSEHOLDING;
			}
		}
		break;
	case EPilarState::EPS_MODIFY_INIT:
		{
			auto activePilar = std::static_pointer_cast<PillarODL>(GetPickingODL().lock());
			activePilar->SetSweeping(true);

			if ( !imp_.CtrllHolding_ )
			{
				GetRenderContextSPtr()->CursorControl_->setActiveIcon(gui::ECI_NORMAL);
				imp_.State_ = EPilarState::EPS_SWEEPING;
				imp_.CtrllHolding_ = false;
				break;
			}

			auto box = activePilar->GetBaseBndBox();

			Standard_Real xMin,xMax,yMin,yMax,zMin,zMax;
			box.Get(xMin, yMin, zMin, xMax, yMax, zMax);

			auto modifyAlign = 100;

			Bnd_Box smallBox,bigBox;
			smallBox.Update(xMin+modifyAlign < 0 ? xMin+modifyAlign : 0, yMin+modifyAlign < 0 ? yMin+modifyAlign : 0, zMin+modifyAlign < 0 ? zMin+modifyAlign : 0,
				xMax-modifyAlign > 0 ? xMax-modifyAlign : 0, yMax-modifyAlign > 0 ? yMax-modifyAlign : 0, zMax-modifyAlign > 0 ? zMax-modifyAlign : 0);
			bigBox.Update(xMin-modifyAlign, yMin-modifyAlign, zMin-modifyAlign, xMax+modifyAlign, yMax+modifyAlign, zMax+modifyAlign);

			auto relationCursorPnt = cursorPnt.Transformed(activePilar->GetAbsoluteTransform().Inverted());
			relationCursorPnt.SetY(0);

			if ( Standard_True == bigBox.IsOut(relationCursorPnt) )
			{
				GetRenderContextSPtr()->CursorControl_->setActiveIcon(gui::ECI_NORMAL);
				imp_.State_ = EPilarState::EPS_SWEEPING;
				imp_.CtrllHolding_ = false;
				break;
			}

			if ( Standard_False == smallBox.IsOut(relationCursorPnt) )
			{
				GetRenderContextSPtr()->CursorControl_->setActiveIcon(gui::ECI_NORMAL);
				break;
			}

			gp_Dir cursorDir = gp_Vec(gp::Origin(), relationCursorPnt);
			{
				auto rad = gp::DX().AngleWithRef(cursorDir, gp::DY());
				rad = rad < 0 ? M_PI * 2 + rad : rad;
				auto mod = std::fmod(rad, M_PI_2);
				if ( mod < M_PI_4 )
				{
					rad -= mod;
				}
				else
				{
					rad = rad - mod + M_PI_2;
				}

				cursorDir = gp::DX().Rotated(gp::OY(), rad);

				mod = std::fmod(rad, M_PI);
				if ( mod < Precision::Angular() )
				{
					GetRenderContextSPtr()->CursorControl_->setActiveIcon(gui::ECI_SIZEWE);
				}
				else
				{
					GetRenderContextSPtr()->CursorControl_->setActiveIcon(gui::ECI_SIZENS);
				}
			}

			if ( imp_.LMousePressDown_ )
			{
				auto edge = BRepBuilderAPI_MakeEdge(gp_Lin(gp::Origin().Transformed(activePilar->GetAbsoluteTransform()), cursorDir.Transformed(activePilar->GetAbsoluteTransform()))).Edge();
				BRepAdaptor_Curve moveBC(edge);

				GeomAPI_ProjectPointOnCurve ppc(relationCursorPnt.Transformed(activePilar->GetAbsoluteTransform()), moveBC.Curve().Curve());

				imp_.ModifyEdge_ = moveBC;
				imp_.ModifyPar_ = ppc.LowerDistanceParameter();

				imp_.State_ = EPilarState::EPS_MODIFY;
				break;
			}
		}
		break;
	case EPilarState::EPS_MODIFY:
		{
			auto activePilar = std::static_pointer_cast<PillarODL>(GetPickingODL().lock());
			activePilar->SetPicking(true);

			if ( imp_.LMouseLeftUp_ )
			{
				activePilar->UpdateMesh();
				imp_.State_ = EPilarState::EPS_SWEEPING;
				break;
			}

			GeomAPI_ProjectPointOnCurve ppcCur(cursorPnt, imp_.ModifyEdge_.Curve().Curve());

			auto curPar = ppcCur.LowerDistanceParameter();
			if ( std::abs(curPar - imp_.ModifyPar_) < Precision::Confusion() )
			{
				break;
			}

			//偏移的起始点、终点(绝对)
			gp_Pnt fromPnt,toPnt;
			imp_.ModifyEdge_.D0(imp_.ModifyPar_, fromPnt);
			imp_.ModifyEdge_.D0(curPar, toPnt);

			gp_Vec moveOffset(fromPnt, toPnt);
			auto relationMoveOffset = moveOffset.Transformed(activePilar->GetAbsoluteTransform().Inverted());
			auto modifyDir = imp_.ModifyEdge_.Line().Direction().Transformed(activePilar->GetAbsoluteTransform().Inverted());
			auto modifyOffset = relationMoveOffset;
			{
				modifyOffset.SetX(modifyOffset.X() * modifyDir.X());
				modifyOffset.SetY(modifyOffset.Y() * modifyDir.Y());
				modifyOffset.SetZ(modifyOffset.Z() * modifyDir.Z());
			}
			auto curPillarSize = activePilar->GetSize();
			if ( Standard_False == imp_.ModifyEdge_.Line().Direction().IsEqual(gp_Dir(moveOffset), Precision::Angular()) )
			{//防止大小缩成0				
				auto testSize = curPillarSize + modifyOffset.XYZ();

				auto minSize = 100;
				auto alignSize = testSize - gp_XYZ(minSize,minSize,minSize);
				if ( alignSize.X() < Precision::Confusion() || alignSize.Y() < Precision::Confusion() || alignSize.Z() < Precision::Confusion() )
				{
					break;
				}
			}

			Bnd_Box pillarBox;
			auto pillarBoxSize = curPillarSize + modifyOffset.XYZ();
			gp_Trsf pillarTranslation,pillarRotation,pillarTransformation;
			{
				pillarBox.Update(-pillarBoxSize.X()/2, -pillarBoxSize.Y()/2, -pillarBoxSize.Z()/2, pillarBoxSize.X()/2, pillarBoxSize.Y()/2, pillarBoxSize.Z()/2);

				auto translation = activePilar->GetTranslation() + relationMoveOffset.XYZ()/2;
				pillarTranslation.SetTranslationPart(translation);
				pillarRotation.SetRotation(activePilar->GetRotation());
			}
			pillarTransformation = pillarTranslation * pillarRotation;

			auto offsetHeight = activePilar->GetOffsetHeight();

			//新的位置
			gp_Pnt newPnt = gp::Origin().Transformed(pillarTransformation);
			
			//吸附距离
			static auto alignDis = 200.0;

			//当前的吸附物体
			auto alignODLs = activePilar->GetAlignList();
			alignODLs.erase(std::remove_if(alignODLs.begin(), alignODLs.end(), [&pillarBox,&pillarTransformation](const BaseODLSPtr& alignODL)
			{
				if ( !alignODL )
				{
					return true;
				}

				return alignODL->GetBaseBndBox().Distance(pillarBox.Transformed(alignODL->GetAbsoluteTransform().Inverted() * pillarTransformation)) > alignDis;
			}), alignODLs.end());
			activePilar->SetAlignList(BaseODLList());

			std::multimap<double,BaseODLSPtr> disMap;
			for ( auto& curODL : RootODL_.lock()->GetChildrenList() )
			{
				if ( EODLT_PILLAR != curODL->GetType() && EODLT_WALL != curODL->GetType() )
				{
					continue;
				}

				if ( std::find(alignODLs.begin(), alignODLs.end(), curODL) != alignODLs.end() )
				{
					continue;
				}

				if ( EODLT_PILLAR == curODL->GetType() && curODL == activePilar )
				{
					continue;
				}

				auto dis = curODL->GetBaseBndBox().Distance(pillarBox.Transformed(curODL->GetAbsoluteTransform().Inverted() * pillarTransformation));
				if ( dis > alignDis )
				{
					continue;
				}

				disMap.emplace(dis, curODL);
			}

			for ( auto& curODL : disMap )
			{
				alignODLs.push_back(curODL.second);
			}

			for ( auto& curODL : alignODLs )
			{
				auto alignTransformation = curODL->GetAbsoluteTransform();

				//调整柱box的旋转
				auto activeRotationPillarBox = pillarBox;
				{
					gp_Trsf tfsODL;
					tfsODL.SetRotation(alignTransformation.GetRotation());

					activeRotationPillarBox = activeRotationPillarBox.Transformed(tfsODL.Inverted() * pillarRotation);
				}

				Bnd_Box movingBox,alignODLBox;
				{
					auto curBox = curODL->GetBaseBndBox();

					Standard_Real xAlignMin,yAlignMin,zAlignMin,xAlignMax,yAlignMax,zAlignMax;
					curBox.Get(xAlignMin, yAlignMin, zAlignMin, xAlignMax, yAlignMax, zAlignMax);

					Standard_Real xPillarMin,yPillarMin,zPillarMin,xPillarMax,yPillarMax,zPillarMax;
					activeRotationPillarBox.Get(xPillarMin, yPillarMin, zPillarMin, xPillarMax, yPillarMax, zPillarMax);

					movingBox.Update(xAlignMin+xPillarMin, yAlignMin+yPillarMin, zAlignMin+zPillarMin,
						xAlignMax+xPillarMax, yAlignMax+yPillarMax, zAlignMax+zPillarMax);

					alignODLBox.Update(xAlignMin+xPillarMin-alignDis, yAlignMin+yPillarMin-alignDis, zAlignMin+zPillarMin-alignDis,
						xAlignMax+xPillarMax+alignDis, yAlignMax+yPillarMax+alignDis, zAlignMax+zPillarMax+alignDis);
				}

				auto inODLPnt = newPnt.Transformed(curODL->GetAbsoluteTransform().Inverted());

				if ( Standard_True == alignODLBox.IsOut(inODLPnt) )
				{
					continue;
				}

				//当前被停靠物体的box shape
				Standard_Real xMin,yMin,zMin,xMax,yMax,zMax;
				movingBox.Get(xMin, yMin, zMin, xMax, yMax, zMax);
				auto alignBoxShape = BRepPrimAPI_MakeBox(gp_Pnt(xMin, yMin, zMin), gp_Pnt(xMax, yMax, zMax)).Shape();
				TopExp_Explorer exp(alignBoxShape, TopAbs_SHELL);

				BRepExtrema_DistShapeShape dss(imp_.ModifyEdge_.Edge().Moved(curODL->GetAbsoluteTransform().Inverted()), exp.Current());

				auto needContinue = false;
				std::map<double, gp_Pnt> tmp;
				for ( auto index=1; index<=dss.NbSolution(); ++index )
				{
					if ( dss.SupportTypeShape2(index) == BRepExtrema_IsOnEdge )
					{
						activePilar->AddAlign(curODL);
						needContinue = true;
						break;
					}

					auto pntOnEdge = dss.PointOnShape1(index);
					auto pntOnBox = dss.PointOnShape2(index);

					if ( pntOnEdge.Distance(pntOnBox) > Precision::Confusion() )
					{
						continue;
					}

					tmp.emplace(pntOnEdge.Distance(inODLPnt), pntOnEdge);
				}

				if ( needContinue )
				{
					continue;
				}

				auto foundPnt = tmp.begin()->second.Transformed(curODL->GetAbsoluteTransform());
				if ( foundPnt.Distance(newPnt) < 1)
				{
					activePilar->AddAlign(curODL);
					continue;
				}
				else
				{
					newPnt = foundPnt;
					break;
				}
			}

 			auto finalOffset = gp_Vec(pillarTranslation.TranslationPart(), newPnt);
			auto finalRelationOffset = finalOffset.Transformed(pillarTransformation.Inverted());
			auto finalModifyOffset = finalRelationOffset;
			{
				finalModifyOffset.SetX(finalModifyOffset.X()*modifyDir.X());
				finalModifyOffset.SetY(finalModifyOffset.Y()*modifyDir.Y());
				finalModifyOffset.SetZ(finalModifyOffset.Z()*modifyDir.Z());
			}

			auto finalSize = pillarBoxSize + finalModifyOffset.XYZ();
			auto finalTranslation = pillarTranslation.TranslationPart() + finalRelationOffset.XYZ()/2;

			activePilar->SetSize(finalSize);
			activePilar->SetTranslation(finalTranslation);
			{
				vector3df newPos(static_cast<float>(finalTranslation.X()), static_cast<float>(finalTranslation.Y()), static_cast<float>(finalTranslation.Z()));
				activePilar->GetDataSceneNode()->setPosition(newPos);
			}
			activePilar->Update2DMesh();

			imp_.ModifyPar_ = curPar;
		}
		break;
	case EPilarState::EPS_MOUSEHOLDING:
		{
			auto activePillar = std::static_pointer_cast<PillarODL>(GetPickingODL().lock());
			activePillar->SetPicking(true);

			if ( imp_.SavePos_.getDistanceFromSQ(imp_.CurrentPos_) > 100 * 100 )
			{
				imp_.State_ = EPilarState::EPS_MOVING;
				imp_.Valid_ = true;
			}
			else 
				if ( imp_.LMouseLeftUp_ )
				{
					imp_.PropertyCallBack_ = boost::none;
					imp_.State_ = EPilarState::EPS_PROPERTY;

					auto pointer = reinterpret_cast<int>(static_cast<void*>(&(*imp_.EventInfo_)));
					::PostMessage((HWND)GetRenderContextSPtr()->GetHandle(), WM_IRR_DLG_MSG, WM_USER_ROOMLAYOUT_PILLAR_PROPERTY, pointer);
				}
		}
		break;
	case EPilarState::EPS_PROPERTY:
		{
			if ( !imp_.PropertyCallBack_ )
			{
				break;
			}

			auto activePillar = std::static_pointer_cast<PillarODL>(GetPickingODL().lock());

			switch (*(imp_.PropertyCallBack_))
			{
			case EUT_ROOMLAYOUT_PILLAR_NONE:
				{
					imp_.State_ = EPilarState::EPS_SWEEPING;
				}
				break;
			case EUT_ROOMLAYOUT_PILLAR_UPDATE:
				{
					activePillar->SetSize(imp_.EventInfo_->XLength_, imp_.EventInfo_->YLength_, imp_.EventInfo_->ZLength_);
					activePillar->SetOffsetHeight(imp_.EventInfo_->OffsetHeight_);

					{
						auto curTrans = activePillar->GetTranslation();
						curTrans.SetY(imp_.EventInfo_->YLength_/2 + imp_.EventInfo_->OffsetHeight_);
						activePillar->SetTranslation(curTrans);

						auto curPos = activePillar->GetDataSceneNode()->getPosition();
						curPos.Y = static_cast<float>(imp_.EventInfo_->YLength_/2 + imp_.EventInfo_->OffsetHeight_);
						activePillar->GetDataSceneNode()->setPosition(curPos);
					}

					activePillar->UpdateMesh();
					imp_.State_ = EPilarState::EPS_SWEEPING;
				}
				break;
			case EUT_ROOMLAYOUT_PILLAR_MOVE:
				{
					imp_.State_ = EPilarState::EPS_MOVING;
				}
				break;
			case EUT_ROOMLAYOUT_PILLAR_DELETE:
				{
					activePillar->RemoveFromParent();
					imp_.State_ = EPilarState::EPS_SWEEPING;
				}
				break;
			default:
				assert(0);
				break;
			}
		}
		break;
	case EPilarState::EPS_CREATING_INIT:
		{
			assert(imp_.EventInfo_);

			auto newPilar = PillarODL::Create<PillarODL>(GetRenderContextSPtr());
			newPilar->SetSize(imp_.EventInfo_->XLength_, imp_.EventInfo_->YLength_, imp_.EventInfo_->ZLength_);
			newPilar->SetOffsetHeight(imp_.EventInfo_->OffsetHeight_);
			newPilar->UpdateMesh();

			RootODL_.lock()->AddChild(newPilar);

			auto newPos = imp_.CurrentPos_;
			newPos.Y = imp_.EventInfo_->YLength_/2;

			newPilar->SetTranslation(gp_XYZ(newPos.X, newPos.Y, newPos.Z));
			newPilar->GetDataSceneNode()->setPosition(newPos);
			SetPickingODL(newPilar);

			imp_.State_ = EPilarState::EPS_MOVING;
		}
		break;
	case EPilarState::EPS_MOVING:
		{
			auto activePilar = std::static_pointer_cast<PillarODL>(GetPickingODL().lock());
			activePilar->SetPicking(true);
			activePilar->SetVaildPosition(imp_.Valid_);

			if ( imp_.LMouseLeftUp_ )
			{
				if ( imp_.Valid_ )
				{
					ImpUPtr_->Valid_ = false;
					ImpUPtr_->EventInfo_ = boost::none;

					imp_.State_ = EPilarState::EPS_SWEEPING;
					break;
				}
			}

			if ( imp_.EscapePressDown_ )
			{
				activePilar->RemoveFromParent();

				imp_.State_ = EPilarState::EPS_SWEEPING;
				break;
			}
			
			//当前柱的Box
			auto activeTransitionBox = activePilar->GetBaseBndBox();
			{
				gp_Trsf tfs;
				tfs.SetTranslationPart(activePilar->GetTranslation());
				activeTransitionBox = activeTransitionBox.Transformed(tfs);
			}

			activePilar->SetRotation(gp_Quaternion(gp::DZ(), gp::DZ()));
			activePilar->GetDataSceneNode()->setRotation(vector3df(0));

			auto size = activePilar->GetSize();
			auto offset = activePilar->GetOffsetHeight();

			//新的位置
			auto newPos = imp_.CurrentPos_;
			newPos.Y = static_cast<float>(size.Y()/2) + offset;
			gp_Pnt newPnt(newPos.X, newPos.Y, newPos.Z);

			//吸附距离
			static auto alignDis = 200.0;

			//当前的吸附物体
			auto alignODLs = activePilar->GetAlignList();
			alignODLs.erase(std::remove_if(alignODLs.begin(), alignODLs.end(), [&activePilar, &activeTransitionBox](const BaseODLSPtr& alignODL)
			{
				if ( !alignODL )
				{
					return true;
				}

				return alignODL->GetBaseBndBox().Distance(activeTransitionBox.Transformed(alignODL->GetAbsoluteTransform().Inverted())) > alignDis;
			}), alignODLs.end());
			activePilar->SetAlignList(BaseODLList());

			std::multimap<double,BaseODLSPtr> disMap;
			for ( auto& curODL : RootODL_.lock()->GetChildrenList() )
			{
				if ( EODLT_PILLAR != curODL->GetType() && EODLT_WALL != curODL->GetType() )
				{
					continue;
				}

				if ( std::find(alignODLs.begin(), alignODLs.end(), curODL) != alignODLs.end() )
				{
					continue;
				}

				if ( EODLT_PILLAR == curODL->GetType() && curODL == activePilar )
				{
					continue;
				}

				auto dis = curODL->GetBaseBndBox().Distance(activeTransitionBox.Transformed(curODL->GetAbsoluteTransform().Inverted()));
				if ( dis > alignDis )
				{
					continue;
				}

				disMap.emplace(dis, curODL);
			}

			for ( auto& curODL : disMap )
			{
				alignODLs.push_back(curODL.second);
			}

			//锁定旋转
			auto lockRotation = false;
			//锁定位置
			auto lockPosition = false;
			//移动方向
			TopoDS_Edge movingEdge;
			for ( auto& curODL : alignODLs )
			{
				auto alignTransformation = curODL->GetAbsoluteTransform();

				//如果锁定了旋转,则调整柱的box
				auto activeRotationPillarBox = activePilar->GetBaseBndBox();
				if ( lockRotation )
				{
					gp_Trsf tfsODL, tfsPillar;

					tfsODL.SetRotation(alignTransformation.GetRotation());
					tfsPillar.SetRotation(activePilar->GetRotation());

					activeRotationPillarBox = activeRotationPillarBox.Transformed(tfsODL.Inverted() * tfsPillar);
				}
				
				Bnd_Box movingBox;
				{
					auto curBox = curODL->GetBaseBndBox();

					Standard_Real xAlignMin,yAlignMin,zAlignMin,xAlignMax,yAlignMax,zAlignMax;
					curBox.Get(xAlignMin, yAlignMin, zAlignMin, xAlignMax, yAlignMax, zAlignMax);

					Standard_Real xPillarMin,yPillarMin,zPillarMin,xPillarMax,yPillarMax,zPillarMax;
					activeRotationPillarBox.Get(xPillarMin, yPillarMin, zPillarMin, xPillarMax, yPillarMax, zPillarMax);

					movingBox.Update(xAlignMin+xPillarMin, yAlignMin+yPillarMin, zAlignMin+zPillarMin,
						xAlignMax+xPillarMax, yAlignMax+yPillarMax, zAlignMax+zPillarMax);
				}
				
				auto inODLPnt = newPnt.Transformed(curODL->GetAbsoluteTransform().Inverted());

				//当位置锁定了以后,只需要判断是不是相交
				if ( lockPosition )
				{
					if ( Standard_True == movingBox.IsOut(inODLPnt) )
					{
						continue;
					}

					Bnd_Box pntBox;
					pntBox.Add(inODLPnt);

					if ( pntBox.Distance(movingBox) < Precision::Confusion() )
					{
						continue;
					}

					imp_.Valid_ = false;
					break;
				}

				Bnd_Box alignODLBox;
				{
					auto curBox = curODL->GetBaseBndBox();

					Standard_Real xAlignMin,yAlignMin,zAlignMin,xAlignMax,yAlignMax,zAlignMax;
					curBox.Get(xAlignMin, yAlignMin, zAlignMin, xAlignMax, yAlignMax, zAlignMax);

					Standard_Real xPillarMin,yPillarMin,zPillarMin,xPillarMax,yPillarMax,zPillarMax;
					activeRotationPillarBox.Get(xPillarMin, yPillarMin, zPillarMin, xPillarMax, yPillarMax, zPillarMax);

					alignODLBox.Update(xAlignMin+xPillarMin-alignDis, yAlignMin+yPillarMin-alignDis, zAlignMin+zPillarMin-alignDis,
						xAlignMax+xPillarMax+alignDis, yAlignMax+yPillarMax+alignDis, zAlignMax+zPillarMax+alignDis);
				}

				if ( Standard_True == alignODLBox.IsOut(inODLPnt) )
				{
					continue;
				}

				//当前被停靠物体的box shape
				Standard_Real xMin,yMin,zMin,xMax,yMax,zMax;
				movingBox.Get(xMin, yMin, zMin, xMax, yMax, zMax);
				auto alignBoxShape = BRepPrimAPI_MakeBox(gp_Pnt(xMin, yMin, zMin), gp_Pnt(xMax, yMax, zMax)).Shape();
				TopExp_Explorer exp(alignBoxShape, TopAbs_SHELL);

				if ( !lockRotation )
				{//找到第一个被停靠物体
					BRepExtrema_DistShapeShape dss(BRepBuilderAPI_MakeVertex(inODLPnt).Shape(), exp.Current());
					assert(0 != dss.NbSolution());
					inODLPnt = dss.PointOnShape2(1);

					newPnt = inODLPnt.Transformed(curODL->GetAbsoluteTransform()).XYZ();

					auto rot = curODL->GetAbsoluteTransform().GetRotation();
					Standard_Real rX,rY,rZ;
					rot.GetEulerAngles(gp_Extrinsic_XYZ, rX, rY, rZ);
					vector3df rotation(static_cast<float>(irr::core::radToDeg(rX)), static_cast<float>(irr::core::radToDeg(rY)), static_cast<float>(irr::core::radToDeg(rZ)));

					activePilar->GetDataSceneNode()->setRotation(rotation);
					activePilar->SetRotation(rot);

					gp_Dir movingDir;
					if ( std::abs(std::abs(inODLPnt.X()) - xMax) < Precision::Confusion() )
					{
						movingDir = gp::DZ();
					}
					else
					{
						movingDir = gp::DX();
					}
					auto curMovingEdge = BRepBuilderAPI_MakeEdge(gp_Lin(inODLPnt, movingDir)).Edge();

					movingEdge = TopoDS::Edge(curMovingEdge.Moved(curODL->GetAbsoluteTransform()));

					activePilar->AddAlign(curODL);
					imp_.Valid_ = true;
					lockRotation = true;
				}
				else
				{//第二个被停靠物体
					BRepExtrema_DistShapeShape dss(movingEdge.Moved(curODL->GetAbsoluteTransform().Inverted()), exp.Current());
					
					auto foundSecond = false;
					std::map<double, gp_Pnt> tmp;
					for ( auto index=1; index<=dss.NbSolution(); ++index )
					{
						auto pntOnEdge = dss.PointOnShape1(index);
						auto pntOnBox = dss.PointOnShape2(index);

						if ( pntOnEdge.Distance(pntOnBox) > Precision::Confusion() )
						{
							continue;
						}

						tmp.emplace(pntOnEdge.Distance(inODLPnt), pntOnEdge);
						foundSecond = true;
					}

					if ( !foundSecond )
					{
						imp_.Valid_ = false;
						break;
					}

					newPnt = tmp.begin()->second.Transformed(curODL->GetAbsoluteTransform());
					activePilar->AddAlign(curODL);
					lockPosition = true;
				}
			}

			if ( activePilar->GetAlignList().empty() )
			{
				imp_.Valid_ = true;
			}

			newPos.X = static_cast<float>(newPnt.X());
			newPos.Y = static_cast<float>(newPnt.Y());
			newPos.Z = static_cast<float>(newPnt.Z());
			activePilar->GetDataSceneNode()->setPosition(newPos);
			activePilar->SetTranslation(newPnt.XYZ());

			for ( auto& curAlign : activePilar->GetAlignList() )
			{
				curAlign->SetSweeping(true);
			}
		}
		break;
	default:
		break;
	}

	imp_.LMousePressDown_ = false;
	imp_.LMouseLeftUp_ = false;
	imp_.EscapePressDown_ = false;

	return false;
}
Пример #19
0
//=======================================================================
//function : GlueEdgesWithPCurves
//purpose  : Glues the pcurves of the sequence of edges
//           and glues their 3d curves
//=======================================================================
static TopoDS_Edge GlueEdgesWithPCurves(const TopTools_SequenceOfShape& aChain,
                                        const TopoDS_Vertex& FirstVertex,
                                        const TopoDS_Vertex& LastVertex)
{
  Standard_Integer i, j;

  TopoDS_Edge FirstEdge = TopoDS::Edge(aChain(1));
  //TColGeom2d_SequenceOfCurve PCurveSeq;
  TColGeom_SequenceOfSurface SurfSeq;
  //TopTools_SequenceOfShape LocSeq;
  
  BRep_ListIteratorOfListOfCurveRepresentation itr( (Handle(BRep_TEdge)::DownCast(FirstEdge.TShape()))->Curves() );
  for (; itr.More(); itr.Next())
  {
    Handle(BRep_CurveRepresentation) CurveRep = itr.Value();
    if (CurveRep->IsCurveOnSurface())
    {
      //PCurveSeq.Append(CurveRep->PCurve());
      SurfSeq.Append(CurveRep->Surface());
      /*
      TopoDS_Shape aLocShape;
      aLocShape.Location(CurveRep->Location());
      LocSeq.Append(aLocShape);
      */
    }
  }

  Standard_Real fpar, lpar;
  BRep_Tool::Range(FirstEdge, fpar, lpar);
  TopoDS_Edge PrevEdge = FirstEdge;
  TopoDS_Vertex CV;
  Standard_Real MaxTol = 0.;
  
  TopoDS_Edge ResEdge;
  BRep_Builder BB;

  Standard_Integer nb_curve = aChain.Length();   //number of curves
  TColGeom_Array1OfBSplineCurve tab_c3d(0,nb_curve-1);                    //array of the curves
  TColStd_Array1OfReal tabtolvertex(0,nb_curve-1); //(0,nb_curve-2);  //array of the tolerances
    
  TopoDS_Vertex PrevVertex = FirstVertex;
  for (i = 1; i <= nb_curve; i++)
  {
    TopoDS_Edge anEdge = TopoDS::Edge(aChain(i));
    TopoDS_Vertex VF, VL;
    TopExp::Vertices(anEdge, VF, VL);
    Standard_Boolean ToReverse = (!VF.IsSame(PrevVertex));
    
    Standard_Real Tol1 = BRep_Tool::Tolerance(VF);
    Standard_Real Tol2 = BRep_Tool::Tolerance(VL);
    if (Tol1 > MaxTol)
      MaxTol = Tol1;
    if (Tol2 > MaxTol)
      MaxTol = Tol2;
    
    if (i > 1)
    {
      TopExp::CommonVertex(PrevEdge, anEdge, CV);
      Standard_Real Tol = BRep_Tool::Tolerance(CV);
      tabtolvertex(i-2) = Tol;
    }
    
    Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, fpar, lpar);
    Handle(Geom_TrimmedCurve) aTrCurve = new Geom_TrimmedCurve(aCurve, fpar, lpar);
    tab_c3d(i-1) = GeomConvert::CurveToBSplineCurve(aTrCurve);
    GeomConvert::C0BSplineToC1BSplineCurve(tab_c3d(i-1), Precision::Confusion());
    if (ToReverse)
      tab_c3d(i-1)->Reverse();
    PrevVertex = (ToReverse)? VF : VL;
    PrevEdge = anEdge;
  }
  Handle(TColGeom_HArray1OfBSplineCurve)  concatcurve;     //array of the concatenated curves
  Handle(TColStd_HArray1OfInteger)        ArrayOfIndices;  //array of the remining Vertex
  GeomConvert::ConcatC1(tab_c3d,
                        tabtolvertex,
                        ArrayOfIndices,
                        concatcurve,
                        Standard_False,
                        Precision::Confusion());   //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), MaxTol, Standard_True );
    
    concatcurve->SetValue(concatcurve->Lower(), Concat.BSplineCurve());
  }
  Handle(Geom_BSplineCurve) ResCurve = concatcurve->Value(concatcurve->Lower());
  
  TColGeom2d_SequenceOfBoundedCurve ResPCurves;
  TopLoc_Location aLoc;
  for (j = 1; j <= SurfSeq.Length(); j++)
  {
    TColGeom2d_Array1OfBSplineCurve tab_c2d(0,nb_curve-1); //array of the pcurves
    
    PrevVertex = FirstVertex;
    PrevEdge = FirstEdge;
    //TopLoc_Location theLoc = LocSeq(j).Location();
    for (i = 1; i <= nb_curve; i++)
    {
      TopoDS_Edge anEdge = TopoDS::Edge(aChain(i));
      TopoDS_Vertex VF, VL;
      TopExp::Vertices(anEdge, VF, VL);
      Standard_Boolean ToReverse = (!VF.IsSame(PrevVertex));

      /*
      Handle(Geom2d_Curve) aPCurve =
        BRep_Tool::CurveOnSurface(anEdge, SurfSeq(j), anEdge.Location()*theLoc, fpar, lpar);
      */
      Handle(Geom2d_Curve) aPCurve =
        BRep_Tool::CurveOnSurface(anEdge, SurfSeq(j), aLoc, fpar, lpar);
      Handle(Geom2d_TrimmedCurve) aTrPCurve = new Geom2d_TrimmedCurve(aPCurve, fpar, lpar);
      tab_c2d(i-1) = Geom2dConvert::CurveToBSplineCurve(aTrPCurve);
      Geom2dConvert::C0BSplineToC1BSplineCurve(tab_c2d(i-1), Precision::Confusion());
      if (ToReverse)
        tab_c2d(i-1)->Reverse();
      PrevVertex = (ToReverse)? VF : VL;
      PrevEdge = anEdge;
    }
    Handle(TColGeom2d_HArray1OfBSplineCurve)  concatc2d;     //array of the concatenated curves
    Handle(TColStd_HArray1OfInteger)        ArrayOfInd2d;  //array of the remining Vertex
    Geom2dConvert::ConcatC1(tab_c2d,
                            tabtolvertex,
                            ArrayOfInd2d,
                            concatc2d,
                            Standard_False,
                            Precision::Confusion());   //C1 concatenation
    
    if (concatc2d->Length() > 1)
    {
      Geom2dConvert_CompCurveToBSplineCurve Concat2d(concatc2d->Value(concatc2d->Lower()));
      
      for (i = concatc2d->Lower()+1; i <= concatc2d->Upper(); i++)
        Concat2d.Add( concatc2d->Value(i), MaxTol, Standard_True );
      
      concatc2d->SetValue(concatc2d->Lower(), Concat2d.BSplineCurve());
    }
    Handle(Geom2d_BSplineCurve) aResPCurve = concatc2d->Value(concatc2d->Lower());
    ResPCurves.Append(aResPCurve);
  }
  
  ResEdge = BRepLib_MakeEdge(ResCurve,
                             FirstVertex, LastVertex,
                             ResCurve->FirstParameter(), ResCurve->LastParameter());
  BB.SameRange(ResEdge, Standard_False);
  BB.SameParameter(ResEdge, Standard_False);
  for (j = 1; j <= ResPCurves.Length(); j++)
  {
    BB.UpdateEdge(ResEdge, ResPCurves(j), SurfSeq(j), aLoc, MaxTol);
    BB.Range(ResEdge, SurfSeq(j), aLoc, ResPCurves(j)->FirstParameter(), ResPCurves(j)->LastParameter());
  }

  BRepLib::SameParameter(ResEdge, MaxTol, Standard_True);
  
  return ResEdge;
}
Пример #20
0
//----------------------------------------------------------------
// Function: TopoDS_Shape level function to update the core Surface
//           for any movement  or Boolean operation of the body.
// Author: Jane Hu
//----------------------------------------------------------------
CubitStatus OCCSurface::update_OCC_entity(TopoDS_Face& old_surface,
                                          TopoDS_Shape& new_surface,
                                          BRepBuilderAPI_MakeShape *op,
                                          TopoDS_Vertex* removed_vertex,
                                          LocOpe_SplitShape* sp) 
{
  //set the Wires
  TopTools_IndexedMapOfShape M, M2;
  TopoDS_Shape shape, shape2, shape_edge, shape_vertex;
  TopExp::MapShapes(old_surface, TopAbs_WIRE, M);

  TopTools_ListOfShape shapes;  
  BRepFilletAPI_MakeFillet2d* test_op = NULL;

  for (int ii=1; ii<=M.Extent(); ii++) 
  {
     TopoDS_Wire wire = TopoDS::Wire(M(ii));
     TopTools_ListOfShape shapes;
     if(op)
     {
       test_op = dynamic_cast<BRepFilletAPI_MakeFillet2d*>(op);
       if(!test_op)
         shapes.Assign(op->Modified(wire));
       if(shapes.Extent() == 0)
         shapes.Assign(op->Generated(wire));
       if(!new_surface.IsNull())
         TopExp::MapShapes(new_surface,TopAbs_WIRE, M2);
     }
     else if(sp)
       shapes.Assign(sp->DescendantShapes(wire));

     if (shapes.Extent() == 1)
     {
       shape = shapes.First();
       if(M2.Extent() == 1)
       {
         shape2 = TopoDS::Wire(M2(1));
         if(!shape.IsSame(shape2))
           shape = shape2;
       }
       else if(M2.Extent() > 1)
         shape.Nullify();
     }
     else if(shapes.Extent() > 1)
       shape.Nullify();
     else if(op->IsDeleted(wire) || shapes.Extent() == 0)
     {
       TopTools_IndexedMapOfShape M_new;
       TopExp::MapShapes(new_surface, TopAbs_WIRE, M_new);
       if (M_new.Extent()== 1)
         shape = M_new(1);
       else
         shape.Nullify();
     }
     else
     {
       shape = wire;
       continue;
     }

     //set curves
     BRepTools_WireExplorer Ex;
      
     for(Ex.Init(wire); Ex.More();Ex.Next())
     {
       TopoDS_Edge edge = Ex.Current();
       if(op && !test_op)
       {
         shapes.Assign(op->Modified(edge));
         if(shapes.Extent() == 0)
           shapes.Assign(op->Generated(edge));
       }
         
       else if(sp)
         shapes.Assign(sp->DescendantShapes(edge));

       if (shapes.Extent() == 1)
       {
        //in fillet creating mothod, one edge could generated a face, so check
        //it here.
         TopAbs_ShapeEnum type = shapes.First().TShape()->ShapeType(); 
         if(type != TopAbs_EDGE)
           shape_edge.Nullify();
         else
           shape_edge = shapes.First();
       }
       else if (shapes.Extent() > 1)
       {
         //update all attributes first.
         TopTools_ListIteratorOfListOfShape it;
         it.Initialize(shapes);
         for(; it.More(); it.Next())
         {
           shape_edge = it.Value();
           OCCQueryEngine::instance()->copy_attributes(edge, shape_edge);
         }
         shape_edge.Nullify();
       }
       else if (op->IsDeleted(edge))
         shape_edge.Nullify(); 
       else if (test_op)
       {
         if(!test_op->IsModified(edge))
           shape_edge = edge;
         else
           shape_edge = (test_op->Modified(edge)).First();
       } 
       else
         shape_edge = edge;

       //update vertex
       TopoDS_Vertex vertex = Ex.CurrentVertex();
       shapes.Clear();
       if(test_op)
         assert(removed_vertex != NULL);

       if(op && ! test_op )
         shapes.Assign(op->Modified(vertex));
       else if(sp)
         shapes.Assign(sp->DescendantShapes(vertex));

       if (shapes.Extent() == 1)
         shape_vertex = shapes.First();

       else if(shapes.Extent() > 1)
       {
         //update all attributes first.
         TopTools_ListIteratorOfListOfShape it;
         it.Initialize(shapes);
         for(; it.More(); it.Next())
         {
           shape_vertex = it.Value();
           OCCQueryEngine::instance()->copy_attributes(vertex, shape_vertex);
         }
         shape_vertex.Nullify() ;
       }
       else if(op->IsDeleted(vertex) || (test_op && vertex.IsSame( *removed_vertex)))
         shape_vertex.Nullify() ;
         
       else
         shape_vertex = vertex;
      
       if(!vertex.IsSame(shape_vertex) )
         OCCQueryEngine::instance()->update_OCC_map(vertex, shape_vertex);

       if (!edge.IsSame(shape_edge))
         OCCQueryEngine::instance()->update_OCC_map(edge, shape_edge);
     }
     if (!wire.IsSame(shape))
       OCCQueryEngine::instance()->update_OCC_map(wire, shape);
  }
  double dTOL = OCCQueryEngine::instance()->get_sme_resabs_tolerance();
  if (!old_surface.IsSame(new_surface))
  {
    TopAbs_ShapeEnum shapetype =  TopAbs_SHAPE;
    if(!new_surface.IsNull())
      shapetype = new_surface.TShape()->ShapeType();  
    if(shapetype == TopAbs_FACE || new_surface.IsNull())
      OCCQueryEngine::instance()->update_OCC_map(old_surface, new_surface);
    else 
    {
      TopTools_IndexedMapOfShape M;
      TopExp::MapShapes(new_surface, TopAbs_FACE, M);   
      TopoDS_Shape new_shape;
      if(M.Extent() == 1)
        new_shape = M(1);
      else if(M.Extent() > 1)
      {
        for(int i = 1; i <= M.Extent(); i++)
        {
          GProp_GProps myProps;
          BRepGProp::SurfaceProperties(old_surface, myProps);
          double orig_mass = myProps.Mass();
          gp_Pnt orig_pnt = myProps.CentreOfMass();
          BRepGProp::SurfaceProperties(M(i), myProps);
          double after_mass = myProps.Mass();
          gp_Pnt after_pnt = myProps.CentreOfMass();
          if(fabs(-after_mass + orig_mass) <= dTOL && 
             orig_pnt.IsEqual(after_pnt, dTOL))
          {
            new_shape = M(i);
            break;
          }
        }
      }
      OCCQueryEngine::instance()->update_OCC_map(old_surface, new_shape);
    }
  }
  return CUBIT_SUCCESS;
}
Пример #21
0
bool Edgecluster::PerformEdges(gp_Pnt& point)
{
    tMapPntEdge::iterator iter = m_vertices.find(point);
    if ( iter == m_vertices.end() )
        return false;

    tEdgeVector& edges = iter->second;

    tEdgeVector::iterator edgeIt = edges.begin();

    //no more edges. pb
    if ( edgeIt == edges.end() )
    {
        //Delete also the current vertex
        m_vertices.erase(iter);

        return false;
    }

    TopoDS_Edge theEdge = *edgeIt;

    //we are storing the edge, so remove it from the vertex association
    edges.erase(edgeIt);

    //if no more edges, remove the vertex
    if ( edges.empty() )
        m_vertices.erase(iter);


    TopoDS_Vertex V1,V2;
    TopExp::Vertices(theEdge,V1,V2);
    gp_Pnt P1 = BRep_Tool::Pnt(V1);
    gp_Pnt P2 = BRep_Tool::Pnt(V2);
    if ( theEdge.Orientation() == TopAbs_REVERSED )
    {
        //switch the points
        gp_Pnt tmpP = P1;
        P1 = P2;
        P2 = tmpP;
    }

    gp_Pnt nextPoint;
    if ( P2.IsEqual(point,0.2) )
    {
        //need to reverse the edge

        theEdge.Reverse();
        nextPoint = P1;
    }
    else
    {
        nextPoint = P2;
    }


    //need to erase the edge from the second point
    iter = m_vertices.find(nextPoint);
    if ( iter != m_vertices.end() )
    {
        tEdgeVector& nextEdges = iter->second;
        for ( edgeIt = nextEdges.begin() ; edgeIt != nextEdges.end(); ++edgeIt )
        {
            if ( theEdge.IsSame(*edgeIt) )
            {
                nextEdges.erase(edgeIt);
                break;
            }
        }
    }

    //put the edge at the end of the list
    m_edges.push_back(theEdge);

    //Update the point for the next do-while loop
    point = nextPoint;
    return true;

}
//=======================================================================
//function : Execute
//purpose  :
//======================================================================= 
Standard_Integer GEOMImpl_MeasureDriver::Execute(TFunction_Logbook& log) const
{
  if (Label().IsNull()) return 0;    
  Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());

  GEOMImpl_IMeasure aCI (aFunction);
  Standard_Integer aType = aFunction->GetType();

  TopoDS_Shape aShape;

  if (aType == CDG_MEASURE)
  {
    Handle(GEOM_Function) aRefBase = aCI.GetBase();
    TopoDS_Shape aShapeBase = aRefBase->GetValue();
    if (aShapeBase.IsNull()) {
      Standard_NullObject::Raise("Shape for centre of mass calculation is null");
    }

    gp_Ax3 aPos = GEOMImpl_IMeasureOperations::GetPosition(aShapeBase);
    gp_Pnt aCenterMass = aPos.Location();
    aShape = BRepBuilderAPI_MakeVertex(aCenterMass).Shape();
  }
  else if (aType == VERTEX_BY_INDEX)
  {
    Handle(GEOM_Function) aRefBase = aCI.GetBase();
    TopoDS_Shape aShapeBase = aRefBase->GetValue();
    if (aShapeBase.IsNull()) {
      Standard_NullObject::Raise("Shape for centre of mass calculation is null");
    }

    int index = aCI.GetIndex();
    gp_Pnt aVertex;

    if (aShapeBase.ShapeType() == TopAbs_VERTEX) {
      if ( index != 1 )
        Standard_NullObject::Raise("Vertex index is out of range");
      else
        aVertex = BRep_Tool::Pnt(TopoDS::Vertex(aShapeBase));
    } else if (aShapeBase.ShapeType() == TopAbs_EDGE) {
      TopoDS_Vertex aV1, aV2;
      TopoDS_Edge anEdgeE = TopoDS::Edge(aShapeBase);
      
      TopExp::Vertices(anEdgeE, aV1, aV2);
      gp_Pnt aP1 = BRep_Tool::Pnt(aV1);
      gp_Pnt aP2 = BRep_Tool::Pnt(aV2);

      if (index < 0 || index > 1)
        Standard_NullObject::Raise("Vertex index is out of range");

      if ( ( anEdgeE.Orientation() == TopAbs_FORWARD && index == 0 ) ||
           ( anEdgeE.Orientation() == TopAbs_REVERSED && index == 1 ) )
        aVertex = aP1;
      else
      aVertex = aP2;
    } else if (aShapeBase.ShapeType() == TopAbs_WIRE) {
      TopTools_IndexedMapOfShape anEdgeShapes;
      TopTools_IndexedMapOfShape aVertexShapes;
      TopoDS_Vertex aV1, aV2;
      TopoDS_Wire aWire = TopoDS::Wire(aShapeBase);
      TopExp_Explorer exp (aWire, TopAbs_EDGE);
      for (; exp.More(); exp.Next()) {
        anEdgeShapes.Add(exp.Current());
        TopoDS_Edge E = TopoDS::Edge(exp.Current());
        TopExp::Vertices(E, aV1, aV2);
        if ( aVertexShapes.Extent() == 0)
          aVertexShapes.Add(aV1);
        if ( !aV1.IsSame( aVertexShapes(aVertexShapes.Extent()) ) )
          aVertexShapes.Add(aV1);
        if ( !aV2.IsSame( aVertexShapes(aVertexShapes.Extent()) ) )
          aVertexShapes.Add(aV2);
      }

      if (index < 0 || index > aVertexShapes.Extent())
        Standard_NullObject::Raise("Vertex index is out of range");

      if (aWire.Orientation() == TopAbs_FORWARD)
        aVertex = BRep_Tool::Pnt(TopoDS::Vertex(aVertexShapes(index+1)));
      else
        aVertex = BRep_Tool::Pnt(TopoDS::Vertex(aVertexShapes(aVertexShapes.Extent() - index)));
    } else {
      Standard_NullObject::Raise("Shape for vertex calculation is not an edge or wire");
    }

    aShape = BRepBuilderAPI_MakeVertex(aVertex).Shape();
  }
  else if (aType == VECTOR_FACE_NORMALE)
  {
    // Face
    Handle(GEOM_Function) aRefBase = aCI.GetBase();
    TopoDS_Shape aShapeBase = aRefBase->GetValue();
    if (aShapeBase.IsNull()) {
      Standard_NullObject::Raise("Face for normale calculation is null");
    }
    if (aShapeBase.ShapeType() != TopAbs_FACE) {
      Standard_NullObject::Raise("Shape for normale calculation is not a face");
    }
    TopoDS_Face aFace = TopoDS::Face(aShapeBase);

    // Point
    gp_Pnt p1 (0,0,0);

    Handle(GEOM_Function) aPntFunc = aCI.GetPoint();
    if (!aPntFunc.IsNull())
    {
      TopoDS_Shape anOptPnt = aPntFunc->GetValue();
      if (anOptPnt.IsNull())
        Standard_NullObject::Raise("Invalid shape given for point argument");
      p1 = BRep_Tool::Pnt(TopoDS::Vertex(anOptPnt));
    }
    else
    {
      gp_Ax3 aPos = GEOMImpl_IMeasureOperations::GetPosition(aFace);
      p1 = aPos.Location();
    }

    // Point parameters on surface
    Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
    Handle(ShapeAnalysis_Surface) aSurfAna = new ShapeAnalysis_Surface (aSurf);
    gp_Pnt2d pUV = aSurfAna->ValueOfUV(p1, Precision::Confusion());

    // Normal direction
    gp_Vec Vec1,Vec2;
    BRepAdaptor_Surface SF (aFace);
    SF.D1(pUV.X(), pUV.Y(), p1, Vec1, Vec2);
    if (Vec1.Magnitude() < Precision::Confusion()) {
      gp_Vec tmpV;
      gp_Pnt tmpP;
      SF.D1(pUV.X(), pUV.Y()-0.1, tmpP, Vec1, tmpV);
    }
    else if (Vec2.Magnitude() < Precision::Confusion()) {
      gp_Vec tmpV;
      gp_Pnt tmpP;
      SF.D1(pUV.X()-0.1, pUV.Y(), tmpP, tmpV, Vec2);
    }

    gp_Vec V = Vec1.Crossed(Vec2);
    Standard_Real mod = V.Magnitude();
    if (mod < Precision::Confusion())
      Standard_NullObject::Raise("Normal vector of a face has null magnitude");

    // Set length of normal vector to average radius of curvature
    Standard_Real radius = 0.0;
    GeomLProp_SLProps aProperties (aSurf, pUV.X(), pUV.Y(), 2, Precision::Confusion());
    if (aProperties.IsCurvatureDefined()) {
      Standard_Real radius1 = Abs(aProperties.MinCurvature());
      Standard_Real radius2 = Abs(aProperties.MaxCurvature());
      if (Abs(radius1) > Precision::Confusion()) {
        radius = 1.0 / radius1;
        if (Abs(radius2) > Precision::Confusion()) {
          radius = (radius + 1.0 / radius2) / 2.0;
        }
      }
      else {
        if (Abs(radius2) > Precision::Confusion()) {
          radius = 1.0 / radius2;
        }
      }
    }

    // Set length of normal vector to average dimension of the face
    // (only if average radius of curvature is not appropriate)
    if (radius < Precision::Confusion()) {
        Bnd_Box B;
        Standard_Real Xmin, Xmax, Ymin, Ymax, Zmin, Zmax;
        BRepBndLib::Add(aFace, B);
        B.Get(Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
        radius = ((Xmax - Xmin) + (Ymax - Ymin) + (Zmax - Zmin)) / 3.0;
    }

    if (radius < Precision::Confusion())
      radius = 1.0;

    V *= radius / mod;

    // consider the face orientation
    if (aFace.Orientation() == TopAbs_REVERSED ||
        aFace.Orientation() == TopAbs_INTERNAL) {
      V = - V;
    }

    // Edge
    gp_Pnt p2 = p1.Translated(V);
    BRepBuilderAPI_MakeEdge aBuilder (p1, p2);
    if (!aBuilder.IsDone())
      Standard_NullObject::Raise("Vector construction failed");
    aShape = aBuilder.Shape();
  }
  else {
  }

  if (aShape.IsNull()) return 0;

  aFunction->SetValue(aShape);

  log.SetTouched(Label()); 

  return 1;
}
Пример #23
0
//=======================================================================
//function : SelectEdge
//purpose  : Find the edge <NE> connected <CE> by the vertex <CV> in the list <LE>.
//           <NE> Is erased  of the list. If <CE> is too in the list <LE> 
//			 with the same orientation, it's erased of the list 
//=======================================================================
static Standard_Boolean  SelectEdge(const TopoDS_Face&    F,
				    const TopoDS_Edge&    CE,
				    const TopoDS_Vertex&  CV,
				    TopoDS_Edge&          NE,
				    TopTools_ListOfShape& LE)
{
  TopTools_ListIteratorOfListOfShape itl;
  NE.Nullify();
  for ( itl.Initialize(LE); itl.More(); itl.Next()) {
    if (itl.Value().IsEqual(CE)) {
      LE.Remove(itl);
      break;
    }
  }

  if (LE.Extent() > 1) {
    //--------------------------------------------------------------
    // Several possible edges.   
    // - Test the edges differents of CE 
    //--------------------------------------------------------------
    Standard_Real   cf, cl, f, l;
    TopoDS_Face FForward = F;
    Handle(Geom2d_Curve) Cc, C;
    FForward.Orientation(TopAbs_FORWARD);
			
    Cc = BRep_Tool::CurveOnSurface(CE,FForward,cf,cl);
    Standard_Real dist,distmin  = 100*BRep_Tool::Tolerance(CV);
    Standard_Real uc,u;
    if (CE.Orientation () == TopAbs_FORWARD) uc = cl;
    else                                     uc = cf;

    gp_Pnt2d P2,PV = Cc->Value(uc); 

    Standard_Real delta = FindDelta(LE,FForward);

    for ( itl.Initialize(LE); itl.More(); itl.Next()) {
      const TopoDS_Edge& E = TopoDS::Edge(itl.Value());
      if (!E.IsSame(CE)) {
	C = BRep_Tool::CurveOnSurface(E,FForward,f,l);
	if (E.Orientation () == TopAbs_FORWARD) u = f;
	else                                    u = l;
	P2 = C->Value(u);
	dist = PV.Distance(P2);
	if (dist <= distmin){
	  distmin = dist;
	}
				
      }
    }

    Standard_Real anglemax = - PI;
    TopoDS_Edge   SelectedEdge;	
    for ( itl.Initialize(LE); itl.More(); itl.Next()) {
      const TopoDS_Edge& E = TopoDS::Edge(itl.Value());
      if (!E.IsSame(CE)) {
	C = BRep_Tool::CurveOnSurface(E,FForward,f,l);
	if (E.Orientation () == TopAbs_FORWARD) u = f;
	else                                    u = l;
	P2 = C->Value(u);
	dist = PV.Distance(P2);
	if (dist <= distmin + (1./3)*delta){ 
	  gp_Pnt2d PC, P;
	  gp_Vec2d CTg1, CTg2, Tg1, Tg2;
	  Cc->D2(uc, PC, CTg1, CTg2);
	  C->D2(u, P, Tg1, Tg2);

	  Standard_Real angle;

	  if (CE.Orientation () == TopAbs_REVERSED && E.Orientation () == TopAbs_FORWARD) {
	    angle = CTg1.Angle(Tg1.Reversed());
	  }
	  else if (CE.Orientation () == TopAbs_FORWARD && E.Orientation () == TopAbs_REVERSED) {
	    angle = (CTg1.Reversed()).Angle(Tg1);
	  }
	  else if (CE.Orientation () == TopAbs_REVERSED && E.Orientation () == TopAbs_REVERSED) {
	    angle = CTg1.Angle(Tg1);
	  }
	  else if (CE.Orientation () == TopAbs_FORWARD && E.Orientation () == TopAbs_FORWARD) {
	    angle = (CTg1.Reversed()).Angle(Tg1.Reversed());
	  }
	  if (angle >= anglemax) {
	    anglemax = angle ;
	    SelectedEdge = E;	
	  }
	}
      }
    }
    for ( itl.Initialize(LE); itl.More(); itl.Next()) {
      const TopoDS_Edge& E = TopoDS::Edge(itl.Value());
      if (E.IsEqual(SelectedEdge)) {
	NE = TopoDS::Edge(E);
	LE.Remove(itl);
	break;
      }
    }					
  }
  else if (LE.Extent() == 1) {
    NE = TopoDS::Edge(LE.First());
    LE.RemoveFirst();
  }
  else {
    return Standard_False;
  }
  return Standard_True;
}
const std::list<gp_Trsf> PolarPattern::getTransformations(const std::vector<App::DocumentObject*>)
{
    float angle = Angle.getValue();
    if (angle < Precision::Confusion())
        throw Base::Exception("Pattern angle too small");
    int occurrences = Occurrences.getValue();
    if (occurrences < 2)
        throw Base::Exception("At least two occurrences required");
    bool reversed = Reversed.getValue();

    double offset;
    if (std::abs(angle - 360.0) < Precision::Confusion())
        offset = Base::toRadians<double>(angle) / occurrences; // Because e.g. two occurrences in 360 degrees need to be 180 degrees apart
    else
        offset = Base::toRadians<double>(angle) / (occurrences - 1);

    App::DocumentObject* refObject = Axis.getValue();
    if (refObject == NULL)
        throw Base::Exception("No axis reference specified");
    if (!refObject->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId()))
        throw Base::Exception("Axis reference must be edge of a feature");
    std::vector<std::string> subStrings = Axis.getSubValues();
    if (subStrings.empty() || subStrings[0].empty())
        throw Base::Exception("No axis reference specified");

    gp_Pnt axbase;
    gp_Dir axdir;
    if (refObject->getTypeId().isDerivedFrom(Part::Part2DObject::getClassTypeId())) {
        Part::Part2DObject* refSketch = static_cast<Part::Part2DObject*>(refObject);
        Base::Axis axis;
        if (subStrings[0] == "H_Axis")
            axis = refSketch->getAxis(Part::Part2DObject::H_Axis);
        else if (subStrings[0] == "V_Axis")
            axis = refSketch->getAxis(Part::Part2DObject::V_Axis);
        else if (subStrings[0] == "N_Axis")
            axis = refSketch->getAxis(Part::Part2DObject::N_Axis);
        else if (subStrings[0].size() > 4 && subStrings[0].substr(0,4) == "Axis") {
            int AxId = std::atoi(subStrings[0].substr(4,4000).c_str());
            if (AxId >= 0 && AxId < refSketch->getAxisCount())
                axis = refSketch->getAxis(AxId);
        }
        axis *= refSketch->Placement.getValue();
        axbase = gp_Pnt(axis.getBase().x, axis.getBase().y, axis.getBase().z);
        axdir = gp_Dir(axis.getDirection().x, axis.getDirection().y, axis.getDirection().z);
    } else {
        Part::Feature* refFeature = static_cast<Part::Feature*>(refObject);
        Part::TopoShape refShape = refFeature->Shape.getShape();
        TopoDS_Shape ref = refShape.getSubShape(subStrings[0].c_str());

        if (ref.ShapeType() == TopAbs_EDGE) {
            TopoDS_Edge refEdge = TopoDS::Edge(ref);
            if (refEdge.IsNull())
                throw Base::Exception("Failed to extract axis edge");
            BRepAdaptor_Curve adapt(refEdge);
            if (adapt.GetType() != GeomAbs_Line)
                throw Base::Exception("Axis edge must be a straight line");

            axbase = adapt.Value(adapt.FirstParameter());
            axdir = adapt.Line().Direction();
        } else {
            throw Base::Exception("Axis reference must be an edge");
        }
    }
    TopLoc_Location invObjLoc = this->getLocation().Inverted();
    axbase.Transform(invObjLoc.Transformation());
    axdir.Transform(invObjLoc.Transformation());

    gp_Ax2 axis(axbase, axdir);

    if (reversed)
        axis.SetDirection(axis.Direction().Reversed());

    // Note: The original feature is NOT included in the list of transformations! Therefore
    // we start with occurrence number 1, not number 0
    std::list<gp_Trsf> transformations;
    gp_Trsf trans;
    transformations.push_back(trans); // identity transformation

    for (int i = 1; i < occurrences; i++) {
        trans.SetRotation(axis.Axis(), i * offset);
        transformations.push_back(trans);
    }

    return transformations;
}
Пример #25
0
const std::list<gp_Trsf> LinearPattern::getTransformations(const std::vector<App::DocumentObject*>)
{
    double distance = Length.getValue();
    if (distance < Precision::Confusion())
        throw Base::Exception("Pattern length too small");
    int occurrences = Occurrences.getValue();
    if (occurrences < 2)
        throw Base::Exception("At least two occurrences required");
    bool reversed = Reversed.getValue();

    double offset = distance / (occurrences - 1);

    App::DocumentObject* refObject = Direction.getValue();
    if (refObject == NULL)
        throw Base::Exception("No direction reference specified");

    std::vector<std::string> subStrings = Direction.getSubValues();
    if (subStrings.empty())
        throw Base::Exception("No direction reference specified");

    gp_Dir dir;
    if (refObject->getTypeId().isDerivedFrom(Part::Part2DObject::getClassTypeId())) {
        Part::Part2DObject* refSketch = static_cast<Part::Part2DObject*>(refObject);
        Base::Axis axis;
        if (subStrings[0] == "H_Axis")
            axis = refSketch->getAxis(Part::Part2DObject::H_Axis);
        else if (subStrings[0] == "V_Axis")
            axis = refSketch->getAxis(Part::Part2DObject::V_Axis);
        else if (subStrings[0] == "N_Axis")
            axis = refSketch->getAxis(Part::Part2DObject::N_Axis);
        else if (subStrings[0].size() > 4 && subStrings[0].substr(0,4) == "Axis") {
            int AxId = std::atoi(subStrings[0].substr(4,4000).c_str());
            if (AxId >= 0 && AxId < refSketch->getAxisCount())
                axis = refSketch->getAxis(AxId);
        }
        axis *= refSketch->Placement.getValue();
        dir = gp_Dir(axis.getDirection().x, axis.getDirection().y, axis.getDirection().z);
    } else if (refObject->getTypeId().isDerivedFrom(PartDesign::Plane::getClassTypeId())) {
        PartDesign::Plane* plane = static_cast<PartDesign::Plane*>(refObject);
        Base::Vector3d d = plane->getNormal();
        dir = gp_Dir(d.x, d.y, d.z);
    } else if (refObject->getTypeId().isDerivedFrom(PartDesign::Line::getClassTypeId())) {
        PartDesign::Line* line = static_cast<PartDesign::Line*>(refObject);
        Base::Vector3d d = line->getDirection();
        dir = gp_Dir(d.x, d.y, d.z);
    } else if (refObject->getTypeId().isDerivedFrom(App::Line::getClassTypeId())) {
        App::Line* line = static_cast<App::Line*>(refObject);
        Base::Rotation rot = line->Placement.getValue().getRotation();
        Base::Vector3d d(1,0,0);
        rot.multVec(d, d);
        dir = gp_Dir(d.x, d.y, d.z);
    } else if (refObject->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId())) {
        if (subStrings[0].empty())
            throw Base::Exception("No direction reference specified");
        Part::Feature* refFeature = static_cast<Part::Feature*>(refObject);
        Part::TopoShape refShape = refFeature->Shape.getShape();
        TopoDS_Shape ref = refShape.getSubShape(subStrings[0].c_str());

        if (ref.ShapeType() == TopAbs_FACE) {
            TopoDS_Face refFace = TopoDS::Face(ref);
            if (refFace.IsNull())
                throw Base::Exception("Failed to extract direction plane");
            BRepAdaptor_Surface adapt(refFace);
            if (adapt.GetType() != GeomAbs_Plane)
                throw Base::Exception("Direction face must be planar");

            dir = adapt.Plane().Axis().Direction();
        } else if (ref.ShapeType() == TopAbs_EDGE) {
            TopoDS_Edge refEdge = TopoDS::Edge(ref);
            if (refEdge.IsNull())
                throw Base::Exception("Failed to extract direction edge");
            BRepAdaptor_Curve adapt(refEdge);
            if (adapt.GetType() != GeomAbs_Line)
                throw Base::Exception("Direction edge must be a straight line");

            dir = adapt.Line().Direction();
        } else {
            throw Base::Exception("Direction reference must be edge or face");
        }
    } else {
        throw Base::Exception("Direction reference must be edge/face of a feature or a datum line/plane");
    }
    TopLoc_Location invObjLoc = this->getLocation().Inverted();
    dir.Transform(invObjLoc.Transformation());

    gp_Vec direction(dir.X(), dir.Y(), dir.Z());

    if (reversed)
        direction.Reverse();

    // Note: The original feature is NOT included in the list of transformations! Therefore
    // we start with occurrence number 1, not number 0
    std::list<gp_Trsf> transformations;
    gp_Trsf trans;
    transformations.push_back(trans); // identity transformation

    for (int i = 1; i < occurrences; i++) {
        trans.SetTranslation(direction * i * offset);
        transformations.push_back(trans);
    }

    return transformations;
}
void Tesselate_Presentation::tesselateShape(const TopoDS_Shape& aShape)
{
//  setResultTitle("Tesselate shape");
  TCollection_AsciiString aText = (
    "/////////////////////////////////////////////////////////////////" EOL
    "// Tesselate shape." EOL
    "/////////////////////////////////////////////////////////////////" EOL EOL
    ) ;

  Standard_Real aDeflection = DATA[myIndex][0];
  Standard_Integer aNumOfFace = (Standard_Integer)DATA[myIndex][1];
  Standard_Integer aNumOfEdge = (Standard_Integer)DATA[myIndex][2];

  aText +=
    "Standard_Real aDeflection;" EOL
    "// aDeflection = ... ;" EOL EOL

    "// removes all the triangulations of the faces ," EOL
    "//and all the polygons on the triangulations of the edges:" EOL
    "BRepTools::Clean(aShape);" EOL EOL

    "// adds a triangulation of the shape aShape with the deflection aDeflection:" EOL
    "BRepMesh::Mesh(aShape,aDeflection);" EOL EOL

    "TopExp_Explorer aExpFace,aExpEdge;" EOL
    "for(aExpFace.Init(aShape,TopAbs_FACE);aExpFace.More();aExpFace.Next())" EOL
    "{  " EOL
    "  TopoDS_Face aFace = TopoDS::Face(aExpFace.Current());" EOL
    "  TopLoc_Location aLocation;" EOL EOL
    
    "  // takes the triangulation of the face aFace:" EOL
    "  Handle_Poly_Triangulation aTr = BRep_Tool::Triangulation(aFace,aLocation);" EOL EOL
    
    "  if(!aTr.IsNull()) // if this triangulation is not NULL" EOL
    "  { " EOL
    "    // takes the array of nodes for this triangulation:" EOL
    "    const TColgp_Array1OfPnt& aNodes = aTr->Nodes();" EOL
    "    // takes the array of triangles for this triangulation:" EOL
    "    const Poly_Array1OfTriangle& triangles = aTr->Triangles();" EOL EOL
    
    "    // create array of node points in absolute coordinate system" EOL
    "    TColgp_Array1OfPnt aPoints(1, aNodes.Length());" EOL
    "    for( Standard_Integer i = 1; i < aNodes.Length()+1; i++)" EOL
    "      aPoints(i) = aNodes(i).Transformed(aLocation);" EOL EOL

    "    // Takes the node points of each triangle of this triangulation." EOL
    "    // takes a number of triangles:" EOL
    "    Standard_Integer nnn = aTr->NbTriangles();" EOL
    "    Standard_Integer nt,n1,n2,n3;" EOL
    "    for( nt = 1 ; nt < nnn+1 ; nt++)" EOL
    "    {" EOL
    "      // takes the node indices of each triangle in n1,n2,n3:" EOL
    "      triangles(nt).Get(n1,n2,n3);" EOL
    "      // takes the node points:" EOL
    "      gp_Pnt aPnt1 = aPoints(n1);" EOL
    "      gp_Pnt aPnt2 = aPoints(n2);" EOL
    "      gp_Pnt aPnt3 = aPoints(n3);" EOL
    "    } " EOL EOL
    
    "    // Takes the polygon associated to an edge." EOL
    "    aExpEdge.Init(aFace,TopAbs_EDGE);" EOL
    "    TopoDS_Edge aEdge;" EOL
    "    // for example,working with the first edge:" EOL
    "    if(aExpEdge.More())" EOL
    "      aEdge = TopoDS::Edge(aExpEdge.Current());" EOL EOL
    
    "    if(!aEdge.IsNull()) // if this edge is not NULL" EOL
    "    {" EOL
    "      // takes the polygon associated to the edge aEdge:" EOL
    "      Handle_Poly_PolygonOnTriangulation aPol = " EOL
    "        BRep_Tool::PolygonOnTriangulation(aEdge,aTr,aEdge.Location());" EOL EOL
    
    "      if(!aPol.IsNull()) // if this polygon is not NULL" EOL
    "        // takes the array of nodes for this polygon" EOL
    "        // (indexes in the array of nodes for triangulation of theFace):" EOL
    "        const TColStd_Array1OfInteger& aNodesOfPol = aPol->Nodes();" EOL
    "    }" EOL
    "  }" EOL
    "}" EOL EOL
    
    "//==================================================" EOL EOL
    
      ;
   aText += "  Result with deflection = ";
   aText += TCollection_AsciiString(aDeflection);
   aText += " :" EOL;

   GetDocument()->PocessTextInDialog("Compute the triangulation on a shape", aText);
//   setResultText(aText.ToCString());  

//==========================================================================

  BRepTools::Clean(aShape);
  BRepMesh::Mesh(aShape,aDeflection);

  BRep_Builder aBuilder,aBuild1,aBuild2;
  TopoDS_Compound aCompound,aComp1,aComp2;
  aBuilder.MakeCompound(aCompound);
  aBuild1.MakeCompound(aComp1);
  aBuild2.MakeCompound(aComp2);

  TopTools_SequenceOfShape aVertices;
  Standard_Integer aCount = 0;
  Standard_Integer aNumOfNodes = 0;
  Standard_Integer aNumOfTriangles = 0;
  
  Handle_AIS_InteractiveObject aShowEdge,aShowFace,aShowShape;
  
  TopExp_Explorer aExpFace,aExpEdge;

  for(aExpFace.Init(aShape,TopAbs_FACE);aExpFace.More();aExpFace.Next())
  {  
    aCount++;
  
    TopoDS_Face aFace = TopoDS::Face(aExpFace.Current());
    TopLoc_Location aLocation;

    Handle_Poly_Triangulation aTr = BRep_Tool::Triangulation(aFace,aLocation);

    if(!aTr.IsNull())
    { 
      const TColgp_Array1OfPnt& aNodes = aTr->Nodes();
      aNumOfNodes += aTr->NbNodes();
      Standard_Integer aLower = aNodes.Lower();
      Standard_Integer anUpper = aNodes.Upper();
      const Poly_Array1OfTriangle& triangles = aTr->Triangles();
      aNumOfTriangles += aTr->NbTriangles();

      if(aCount == aNumOfFace)
      {
        Standard_Integer aNbOfNodesOfFace = aTr->NbNodes();
        Standard_Integer aNbOfTrianglesOfFace = aTr->NbTriangles();
        aExpEdge.Init(aFace,TopAbs_EDGE);

        TopoDS_Edge aEdge;

        for( Standard_Integer i = 0; aExpEdge.More() && i < aNumOfEdge ; aExpEdge.Next(), i++)
          aEdge = TopoDS::Edge(aExpEdge.Current());

        if(!aEdge.IsNull())
        {
          Handle_Poly_PolygonOnTriangulation aPol = 
            BRep_Tool::PolygonOnTriangulation(aEdge,aTr,aEdge.Location());

          if(!aPol.IsNull())
          {
            const TColStd_Array1OfInteger& aNodesOfPol = aPol->Nodes();
            Standard_Integer aNbOfNodesOfEdge = aPol->NbNodes();

            aText += "Number of nodes of the edge = ";
            aText += TCollection_AsciiString(aNbOfNodesOfEdge) + EOL;
            aText += "Number of nodes of the face = ";
            aText += TCollection_AsciiString(aNbOfNodesOfFace) + EOL;
            aText += "Number of triangles of the face = ";
            aText += TCollection_AsciiString(aNbOfTrianglesOfFace) + EOL;
			GetDocument()->PocessTextInDialog("Compute the triangulation on a shape", aText);
//            setResultText(aText.ToCString());  

            Standard_Integer aLower = aNodesOfPol.Lower(), anUpper = aNodesOfPol.Upper();
            for( int i = aLower; i < anUpper ; i++)
            {
              gp_Pnt aPnt1 = aNodes(aNodesOfPol(i)).Transformed(aLocation);
              gp_Pnt aPnt2 = aNodes(aNodesOfPol(i+1)).Transformed(aLocation);
              TopoDS_Vertex aVertex1 = BRepBuilderAPI_MakeVertex (aPnt1);
              TopoDS_Vertex aVertex2 = BRepBuilderAPI_MakeVertex (aPnt2);

              if(!aVertex1.IsNull() && !aVertex2.IsNull() && // if vertices are "alive"
                !BRep_Tool::Pnt(aVertex1).IsEqual(
                BRep_Tool::Pnt(aVertex2),Precision::Confusion())) // if they are different
              {
                aEdge = BRepBuilderAPI_MakeEdge (aVertex1,aVertex2);
                aBuild2.Add(aComp2,aVertex1);
                if(!aEdge.IsNull())
                  aBuild2.Add(aComp2,aEdge);
                if(i == anUpper-1)
                  aBuild2.Add(aComp2,aVertex2);
              }
            }
      
            getAISContext()->EraseAll();
            aShowShape = drawShape(aShape);
            if(WAIT_A_SECOND) return;
            aShowEdge = drawShape(aComp2,Quantity_NOC_GREEN);
            getAISContext()->Erase(aShowShape);
            if(WAIT_A_SECOND) return;
          }
        }
      }
    

      TopTools_DataMapOfIntegerShape aEdges;
      TopTools_SequenceOfShape aVertices;

      for( Standard_Integer i = 1; i < aNodes.Length()+1; i++)
      {
        gp_Pnt aPnt = aNodes(i).Transformed(aLocation);
        TopoDS_Vertex aVertex = BRepBuilderAPI_MakeVertex(aPnt);

        if(!aVertex.IsNull())
        {
          aBuilder.Add(aCompound,aVertex);
          if(aCount == aNumOfFace ) 
            aBuild1.Add(aComp1,aVertex);
          aVertices.Append(aVertex);
        }
      }

      Standard_Integer nnn = aTr->NbTriangles();
      Standard_Integer nt,n1,n2,n3;

      for( nt = 1 ; nt < nnn+1 ; nt++)
      {     
        triangles(nt).Get(n1,n2,n3);

        Standard_Integer key[3];
        
        TopoDS_Vertex aV1,aV2;
        key[0] = _key(n1, n2);
        if(!aEdges.IsBound(key[0]))
        {
          aV1 = TopoDS::Vertex(aVertices(n1));
          aV2 = TopoDS::Vertex(aVertices(n2));
          if(!aV1.IsNull() && !aV2.IsNull() &&
            !BRep_Tool::Pnt(aV1).IsEqual(BRep_Tool::Pnt(aV2),Precision::Confusion()))
          {
            TopoDS_Edge aEdge = BRepBuilderAPI_MakeEdge (aV1,aV2);  
            if(!aEdge.IsNull())
            {
              aEdges.Bind(key[0], aEdge);
              aBuilder.Add(aCompound,aEdges(key[0]));
              if(aCount == aNumOfFace)
                aBuild1.Add(aComp1,aEdges(key[0]));
            } 
          }
        }
        
        key[1] = _key(n2,n3);
        if(!aEdges.IsBound(key[1])) 
        { 
          aV1 = TopoDS::Vertex(aVertices(n2));
          aV2 = TopoDS::Vertex(aVertices(n3));
          if(!aV1.IsNull() && !aV2.IsNull() &&
            !BRep_Tool::Pnt(aV1).IsEqual(BRep_Tool::Pnt(aV2),Precision::Confusion()))
          {
            TopoDS_Edge aEdge = BRepBuilderAPI_MakeEdge (aV1,aV2);  
            if(!aEdge.IsNull())
            {
              aEdges.Bind(key[1],aEdge);
              aBuilder.Add(aCompound,aEdges(key[1]));
              if(aCount == aNumOfFace) 
                aBuild1.Add(aComp1,aEdges(key[1]));
            } 
          } 
        } 
 
        key[2] = _key(n3,n1);
        if(!aEdges.IsBound(key[2])) 
        { 
          aV1 = TopoDS::Vertex(aVertices(n3));
          aV2 = TopoDS::Vertex(aVertices(n1));
          if(!aV1.IsNull() && !aV2.IsNull() &&
            !BRep_Tool::Pnt(aV1).IsEqual(BRep_Tool::Pnt(aV2),Precision::Confusion()))
          { 
            TopoDS_Edge aEdge = BRepBuilderAPI_MakeEdge (aV1,aV2);  
            if(!aEdge.IsNull())
            { 
              aEdges.Bind(key[2],aEdge);
              aBuilder.Add(aCompound,aEdges(key[2]));
              if(aCount == aNumOfFace) 
                aBuild1.Add(aComp1,aEdges(key[2]));
            } 
          } 
        } 
      } 
      
      if(aCount == aNumOfFace)
      {
        aShowFace = drawShape(aComp1,Quantity_NOC_GREEN);
        getAISContext()->Erase(aShowEdge);
      }
    }
    else
    {
      aText += "Can't compute a triangulation on face ";
      aText += TCollection_AsciiString(aCount) + EOL;
	  GetDocument()->PocessTextInDialog("Compute the triangulation on a shape", aText);
//      setResultText(aText.ToCString());
    }
  }
  
  aText += "Number of nodes of the shape = ";
  aText += TCollection_AsciiString(aNumOfNodes) + EOL;
  aText += "Number of triangles of the shape = ";
  aText += TCollection_AsciiString(aNumOfTriangles) + EOL EOL;
  GetDocument()->PocessTextInDialog("Compute the triangulation on a shape", aText);
//  setResultText(aText.ToCString());

  if(WAIT_A_SECOND) return;
  drawShape(aCompound,Quantity_NOC_GREEN);
  getAISContext()->Erase(aShowFace);
  
}
Пример #27
0
//=======================================================================
//function : GetApproxNormalToFaceOnEdge
//purpose  : 
//=======================================================================
void GetApproxNormalToFaceOnEdge (const TopoDS_Edge& aEx, 
                                  const TopoDS_Face& aFx, 
                                  Standard_Real aT, 
                                  gp_Pnt& aPF, 
                                  gp_Dir& aDNF,
                                  IntTools_Context& aCtx)
{
  Standard_Boolean bReverse;
  Standard_Real aT1, aT2, dT, aU, aV;
  gp_Dir aDTT, aDNFT, aDBT;
  gp_Pnt aPFT, aPFx;
  Handle(Geom_Curve) aC3D;
  Handle(Geom_Surface) aS;
  GeomAdaptor_Surface aGAS;
  GeomAbs_SurfaceType aTS;
  TopoDS_Face aF;
  TopoDS_Edge aE;
  //
  bReverse=Standard_False;
  aF=aFx;
  aE=aEx;
  if (aF.Orientation()==TopAbs_REVERSED){
    bReverse=!bReverse;
    aE.Reverse();
    //
    aF.Orientation(TopAbs_FORWARD);
  }
  //
  // Point at aT
  aC3D =BRep_Tool::Curve(aE, aT1, aT2);
  aC3D->D0(aT, aPFT);
  //
  // Normal at aT
  BOPTools_Tools3D::GetNormalToFaceOnEdge (aE, aF, aT, aDNFT);
  
  // Tangent at aT
  BOPTools_Tools3D::GetTangentToEdge(aE, aT, aDTT);
  //
  // Binormal at aT
  aDBT=aDNFT^aDTT;
  //
  dT=BOPTools_Tools3D::MinStepIn2d();//~1.e-5;
  dT=10.*dT;
  //----------------------------------------------
  {
    aS=BRep_Tool::Surface(aF);
    aGAS.Load(aS);
    aTS=aGAS.GetType();
    if (aTS==GeomAbs_BSplineSurface ||
        aTS==GeomAbs_BezierSurface ||
        aTS==GeomAbs_Plane) {
      Standard_Real aTolEx, aTolFx, aTol, dUR, dVR, dR;
      //
      aTolEx=BRep_Tool::Tolerance(aEx);
      aTolFx=BRep_Tool::Tolerance(aFx);
      aTol=2.*aTolEx+aTolFx;
      dUR=aGAS.UResolution(aTol);
      dVR=aGAS.VResolution(aTol);
      dR=(dUR>dVR)? dUR : dVR;
      if (dR>dT) {
        dT=dR;
      }
    }
    //modified by NIZNHY-PKV Thu Dec 02 10:39:09 2010f
    else if (GeomAbs_Torus ||
             aTS==GeomAbs_Cylinder){
      Standard_Real aTolEx, aTolFx, aTol;
      //
      aTolEx=BRep_Tool::Tolerance(aEx);
      aTolFx=BRep_Tool::Tolerance(aFx);
      aTol=2.*aTolEx+aTolFx;
      if (aTol>dT) {
        dT=aTol;
      }
    }
    //modified by NIZNHY-PKV Thu Dec 02 10:39:13 2010t
  }
  //----------------------------------------------
  //
  aPFx.SetXYZ(aPFT.XYZ()+dT*aDBT.XYZ());
  //
  aPF=aPFx;
  aDNF=aDNFT;
  if (bReverse) {
    aDNF.Reverse();
  }
  //
  GeomAPI_ProjectPointOnSurf& aProjector=aCtx.ProjPS(aF);
  //
  aProjector.Perform(aPFx);
  if(aProjector.IsDone()) {
    aProjector.LowerDistanceParameters (aU, aV);
    aS->D0(aU, aV, aPF);
    BOPTools_Tools3D::GetNormalToSurface (aS, aU, aV, aDNF);
    if (bReverse){
      aDNF.Reverse();
    }
  }
}
//=======================================================================
//function : Execute
//purpose  :
//=======================================================================
Standard_Integer GEOMImpl_Fillet1dDriver::Execute(TFunction_Logbook& log) const
{
  if (Label().IsNull()) return 0;
  Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());

  GEOMImpl_IFillet1d aCI (aFunction);

  Handle(GEOM_Function) aRefShape = aCI.GetShape();
  TopoDS_Shape aShape = aRefShape->GetValue();
  if (aShape.IsNull())
    return 0;
  if (aShape.ShapeType() != TopAbs_WIRE)
    Standard_ConstructionError::Raise("Wrong arguments: polyline as wire must be given");

  TopoDS_Wire aWire = TopoDS::Wire(aShape);

  double rad = aCI.GetR();

  if ( rad < Precision::Confusion())
    return 0;

  // collect vertices for make fillet
  TopTools_ListOfShape aVertexList;
  TopTools_MapOfShape mapShape;
  int aLen = aCI.GetLength();
  if ( aLen > 0 ) {
    for (int ind = 1; ind <= aLen; ind++) {
      TopoDS_Shape aShapeVertex;
      if (GEOMImpl_ILocalOperations::GetSubShape
          (aWire, aCI.GetVertex(ind), aShapeVertex))
        if (mapShape.Add(aShapeVertex))
          aVertexList.Append( aShapeVertex );
    }
  } else { // get all vertices from wire
    TopExp_Explorer anExp( aWire, TopAbs_VERTEX );
    for ( ; anExp.More(); anExp.Next() ) {
      if (mapShape.Add(anExp.Current()))
        aVertexList.Append( anExp.Current() );
    }
  }
  if (aVertexList.IsEmpty())
    Standard_ConstructionError::Raise("Invalid input no vertices to make fillet");

  //INFO: this algorithm implemented in assumption that user can select both
  //  vertices of some edges to make fillet. In this case we should remember
  //  already modified initial edges to take care in next fillet step
  TopTools_DataMapOfShapeShape anEdgeToEdgeMap;

  //iterates on vertices, and make fillet on each couple of edges
  //collect result fillet edges in list
  TopTools_ListOfShape aListOfNewEdge;
  // remember relation between initial and modified map
  TopTools_IndexedDataMapOfShapeListOfShape aMapVToEdges;
  TopExp::MapShapesAndAncestors( aWire, TopAbs_VERTEX, TopAbs_EDGE, aMapVToEdges );
  TopTools_ListIteratorOfListOfShape anIt( aVertexList );
  for ( ; anIt.More(); anIt.Next() ) {
    TopoDS_Vertex aV = TopoDS::Vertex( anIt.Value() );
    if ( aV.IsNull() || !aMapVToEdges.Contains( aV ) )
      continue;
    const TopTools_ListOfShape& aVertexEdges = aMapVToEdges.FindFromKey( aV );
    if ( aVertexEdges.Extent() != 2 )
      continue; // no input data to make fillet
    TopoDS_Edge anEdge1 = TopoDS::Edge( aVertexEdges.First() );
    TopoDS_Edge anEdge2 = TopoDS::Edge( aVertexEdges.Last() );
    // check if initial edges already modified in previous fillet operation
    if ( anEdgeToEdgeMap.IsBound( anEdge1 ) ) anEdge1 = TopoDS::Edge(anEdgeToEdgeMap.Find( anEdge1 ));
    if ( anEdgeToEdgeMap.IsBound( anEdge2 ) ) anEdge2 = TopoDS::Edge(anEdgeToEdgeMap.Find( anEdge2 ));
    if ( anEdge1.IsNull() || anEdge2.IsNull() || anEdge1.IsSame( anEdge2 ) )
      continue; //no input data to make fillet

    // create plane on 2 edges
    gp_Pln aPlane;
    if ( !takePlane(anEdge1, anEdge2, aV, aPlane) )
      continue; // seems edges does not belong to same plane or parallel (fillet can not be build)

    GEOMImpl_Fillet1d aFilletAlgo(anEdge1, anEdge2, aPlane);
    if ( !aFilletAlgo.Perform(rad) )
      continue; // can not create fillet with given radius

    // take fillet result in given vertex
    TopoDS_Edge aModifE1, aModifE2;
    TopoDS_Edge aNewE = aFilletAlgo.Result(BRep_Tool::Pnt(aV), aModifE1, aModifE2);
    if (aNewE.IsNull())
      continue; // no result found

    // add  new created edges and take modified edges
    aListOfNewEdge.Append( aNewE );

    // check if face edges modified,
    // if yes, than map to original edges (from vertex-edges list), because edges can be modified before
    if (aModifE1.IsNull() || !anEdge1.IsSame( aModifE1 ))
      addEdgeRelation( anEdgeToEdgeMap, TopoDS::Edge(aVertexEdges.First()), aModifE1 );
    if (aModifE2.IsNull() || !anEdge2.IsSame( aModifE2 ))
      addEdgeRelation( anEdgeToEdgeMap, TopoDS::Edge(aVertexEdges.Last()), aModifE2 );
  }

  if ( anEdgeToEdgeMap.IsEmpty() && aListOfNewEdge.IsEmpty() ) {
    StdFail_NotDone::Raise("1D Fillet can't be computed on the given shape with the given radius");
    return 0;
  }

  // create new wire instead of original
  for ( TopExp_Explorer anExp( aWire, TopAbs_EDGE ); anExp.More(); anExp.Next() ) {
    TopoDS_Shape anEdge = anExp.Current();
    if ( !anEdgeToEdgeMap.IsBound( anEdge ) )
      aListOfNewEdge.Append( anEdge );
    else if (!anEdgeToEdgeMap.Find( anEdge ).IsNull())
      aListOfNewEdge.Append( anEdgeToEdgeMap.Find( anEdge ) );
  }

  GEOMImpl_IShapesOperations::SortShapes( aListOfNewEdge );

  BRepBuilderAPI_MakeWire aWireTool;
  aWireTool.Add( aListOfNewEdge );
  aWireTool.Build();
  if (!aWireTool.IsDone())
    return 0;

  aWire = aWireTool.Wire();
  aFunction->SetValue(aWire);
  log.SetTouched(Label());

  return 1;
}