gp_Vec normalToFaceAtUV(const TopoDS_Face& face, double u, double v)
{
BRepLProp_SLProps localSurfaceProps(1, 1e-6);
localSurfaceProps.SetSurface(BRepAdaptor_Surface(face));
localSurfaceProps.SetParameters(u, v);
if (localSurfaceProps.IsNormalDefined()) {
const gp_Dir& nc = localSurfaceProps.Normal();
if (face.Orientation() == TopAbs_REVERSED)
return gp_Vec(-nc.X(), -nc.Y(), -nc.Z());
else
return gp_Vec(nc.X(), nc.Y(), nc.Z());
}
return gp_Vec(0., 0., 1.);
//return normalToSurfaceAtUV(BRep_Tool::Surface(face), u, v);
}
int convert_to_ifc(const TopoDS_Face& f, IfcSchema::IfcFace*& face, bool advanced) {
Handle_Geom_Surface surf = BRep_Tool::Surface(f);
TopExp_Explorer exp(f, TopAbs_WIRE);
IfcSchema::IfcFaceBound::list::ptr bounds(new IfcSchema::IfcFaceBound::list);
int index = 0;
for (; exp.More(); exp.Next(), ++index) {
IfcSchema::IfcLoop* loop;
if (!convert_to_ifc(TopoDS::Wire(exp.Current()), loop, advanced)) {
return 0;
}
IfcSchema::IfcFaceBound* bnd;
if (index == 0) {
bnd = new IfcSchema::IfcFaceOuterBound(loop, true);
} else {
bnd = new IfcSchema::IfcFaceBound(loop, true);
}
bounds->push(bnd);
}
const bool is_planar = surf->DynamicType() == STANDARD_TYPE(Geom_Plane);
if (!is_planar && !advanced) {
return 0;
}
if (is_planar && !advanced) {
face = new IfcSchema::IfcFace(bounds);
return 1;
} else {
#ifdef USE_IFC4
IfcSchema::IfcSurface* surface;
if (!convert_to_ifc(surf, surface, advanced)) {
return 0;
}
face = new IfcSchema::IfcAdvancedFace(bounds, surface, f.Orientation() == TopAbs_FORWARD);
return 1;
#else
// No IfcAdvancedFace in Ifc2x3
return 0;
#endif
}
}
bool SMESH_Algo::IsReversedSubMesh (const TopoDS_Face& theFace,
SMESHDS_Mesh* theMeshDS)
{
if ( theFace.IsNull() || !theMeshDS )
return false;
// find out orientation of a meshed face
int faceID = theMeshDS->ShapeToIndex( theFace );
TopoDS_Shape aMeshedFace = theMeshDS->IndexToShape( faceID );
bool isReversed = ( theFace.Orientation() != aMeshedFace.Orientation() );
const SMESHDS_SubMesh * aSubMeshDSFace = theMeshDS->MeshElements( faceID );
if ( !aSubMeshDSFace )
return isReversed;
// find element with node located on face and get its normal
const SMDS_FacePosition* facePos = 0;
int vertexID = 0;
gp_Pnt nPnt[3];
gp_Vec Ne;
bool normalOK = false;
SMDS_ElemIteratorPtr iteratorElem = aSubMeshDSFace->GetElements();
while ( iteratorElem->more() ) // loop on elements on theFace
{
const SMDS_MeshElement* elem = iteratorElem->next();
if ( elem && elem->NbNodes() > 2 ) {
SMDS_ElemIteratorPtr nodesIt = elem->nodesIterator();
const SMDS_FacePosition* fPos = 0;
int i = 0, vID = 0;
while ( nodesIt->more() ) { // loop on nodes
const SMDS_MeshNode* node
= static_cast<const SMDS_MeshNode *>(nodesIt->next());
if ( i == 3 ) i = 2;
nPnt[ i++ ].SetCoord( node->X(), node->Y(), node->Z() );
// check position
const SMDS_PositionPtr& pos = node->GetPosition();
if ( !pos ) continue;
if ( pos->GetTypeOfPosition() == SMDS_TOP_FACE ) {
fPos = dynamic_cast< const SMDS_FacePosition* >( pos.get() );
}
else if ( pos->GetTypeOfPosition() == SMDS_TOP_VERTEX ) {
vID = pos->GetShapeId();
}
}
if ( fPos || ( !normalOK && vID )) {
// compute normal
gp_Vec v01( nPnt[0], nPnt[1] ), v02( nPnt[0], nPnt[2] );
if ( v01.SquareMagnitude() > RealSmall() &&
v02.SquareMagnitude() > RealSmall() )
{
Ne = v01 ^ v02;
normalOK = ( Ne.SquareMagnitude() > RealSmall() );
}
// we need position on theFace or at least on vertex
if ( normalOK ) {
vertexID = vID;
if ((facePos = fPos))
break;
}
}
}
}
if ( !normalOK )
return isReversed;
// node position on face
double u,v;
if ( facePos ) {
u = facePos->GetUParameter();
v = facePos->GetVParameter();
}
else if ( vertexID ) {
TopoDS_Shape V = theMeshDS->IndexToShape( vertexID );
if ( V.IsNull() || V.ShapeType() != TopAbs_VERTEX )
return isReversed;
gp_Pnt2d uv = BRep_Tool::Parameters( TopoDS::Vertex( V ), theFace );
u = uv.X();
v = uv.Y();
}
else
{
return isReversed;
}
// face normal at node position
TopLoc_Location loc;
Handle(Geom_Surface) surf = BRep_Tool::Surface( theFace, loc );
if ( surf.IsNull() || surf->Continuity() < GeomAbs_C1 ) return isReversed;
gp_Vec d1u, d1v;
surf->D1( u, v, nPnt[0], d1u, d1v );
gp_Vec Nf = (d1u ^ d1v).Transformed( loc );
if ( theFace.Orientation() == TopAbs_REVERSED )
Nf.Reverse();
return Ne * Nf < 0.;
}
void VisualSceneOCCGeometry :: BuildScene (int zoomall)
{
if (occgeometry -> changed == OCCGEOMETRYVISUALIZATIONFULLCHANGE)
{
occgeometry -> BuildVisualizationMesh (vispar.occdeflection);
center = occgeometry -> Center();
rad = occgeometry -> GetBoundingBox().Diam() / 2;
if (vispar.occzoomtohighlightedentity)
{
bool hilite = false;
bool hiliteonepoint = false;
Bnd_Box bb;
for (int i = 1; i <= occgeometry->fmap.Extent(); i++)
if (occgeometry->fvispar[i-1].IsHighlighted())
{
hilite = true;
BRepBndLib::Add (occgeometry->fmap(i), bb);
}
for (int i = 1; i <= occgeometry->emap.Extent(); i++)
if (occgeometry->evispar[i-1].IsHighlighted())
{
hilite = true;
BRepBndLib::Add (occgeometry->emap(i), bb);
}
for (int i = 1; i <= occgeometry->vmap.Extent(); i++)
if (occgeometry->vvispar[i-1].IsHighlighted())
{
hiliteonepoint = true;
BRepBndLib::Add (occgeometry->vmap(i), bb);
}
if (hilite || hiliteonepoint)
{
double x1,y1,z1,x2,y2,z2;
bb.Get (x1,y1,z1,x2,y2,z2);
Point<3> p1 = Point<3> (x1,y1,z1);
Point<3> p2 = Point<3> (x2,y2,z2);
Box<3> boundingbox(p1,p2);
center = boundingbox.Center();
if (hiliteonepoint)
rad = occgeometry -> GetBoundingBox().Diam() / 100;
else
rad = boundingbox.Diam() / 2;
}
}
CalcTransformationMatrices();
}
// Clear lists
for (int i = 1; i <= linelists.Size(); i++)
glDeleteLists (linelists.Elem(i), 1);
linelists.SetSize(0);
for (int i = 1; i <= trilists.Size(); i++)
glDeleteLists (trilists.Elem(i), 1);
trilists.SetSize(0);
// Total wireframe
linelists.Append (glGenLists (1));
glNewList (linelists.Last(), GL_COMPILE);
for (int i = 1; i <= occgeometry->emap.Extent(); i++)
{
TopoDS_Edge edge = TopoDS::Edge(occgeometry->emap(i));
if (BRep_Tool::Degenerated(edge)) continue;
if (occgeometry->evispar[i-1].IsHighlighted()) continue;
Handle(Poly_PolygonOnTriangulation) aEdgePoly;
Handle(Poly_Triangulation) T;
TopLoc_Location aEdgeLoc;
BRep_Tool::PolygonOnTriangulation(edge, aEdgePoly, T, aEdgeLoc);
if(aEdgePoly.IsNull())
{
(*testout) << "visualizing edge " << occgeometry->emap.FindIndex (edge)
<< " without using the occ visualization triangulation" << endl;
double s0, s1;
Handle(Geom_Curve) c = BRep_Tool::Curve(edge, s0, s1);
glBegin (GL_LINE_STRIP);
for (int i = 0; i<=50; i++)
{
gp_Pnt p = c->Value (s0 + i*(s1-s0)/50.0);
glVertex3f (p.X(),p.Y(),p.Z());
}
glEnd ();
continue;
}
int nbnodes = aEdgePoly -> NbNodes();
glBegin (GL_LINE_STRIP);
for (int j = 1; j <= nbnodes; j++)
{
gp_Pnt p = (T -> Nodes())(aEdgePoly->Nodes()(j)).Transformed(aEdgeLoc);
glVertex3f (p.X(), p.Y(), p.Z());
}
glEnd ();
}
glEndList ();
// Highlighted edge list
linelists.Append (glGenLists (1));
glNewList (linelists.Last(), GL_COMPILE);
for (int i = 1; i <= occgeometry->emap.Extent(); i++)
if (occgeometry->evispar[i-1].IsHighlighted())
{
TopoDS_Edge edge = TopoDS::Edge(occgeometry->emap(i));
if (BRep_Tool::Degenerated(edge)) continue;
Handle(Poly_PolygonOnTriangulation) aEdgePoly;
Handle(Poly_Triangulation) T;
TopLoc_Location aEdgeLoc;
BRep_Tool::PolygonOnTriangulation(edge, aEdgePoly, T, aEdgeLoc);
if(aEdgePoly.IsNull())
{
(*testout) << "visualizing edge " << occgeometry->emap.FindIndex (edge)
<< " without using the occ visualization triangulation" << endl;
double s0, s1;
Handle(Geom_Curve) c = BRep_Tool::Curve(edge, s0, s1);
glBegin (GL_LINE_STRIP);
for (int i = 0; i<=50; i++)
{
gp_Pnt p = c->Value (s0 + i*(s1-s0)/50.0);
glVertex3f (p.X(),p.Y(),p.Z());
}
glEnd ();
continue;
}
int nbnodes = aEdgePoly -> NbNodes();
glBegin (GL_LINE_STRIP);
for (int j = 1; j <= nbnodes; j++)
{
gp_Pnt p = (T -> Nodes())(aEdgePoly->Nodes()(j)).Transformed(aEdgeLoc);
glVertex3f (p.X(), p.Y(), p.Z());
}
glEnd ();
}
glEndList ();
// display faces
trilists.Append (glGenLists (1));
glNewList (trilists.Last(), GL_COMPILE);
for (int i = 1; i <= occgeometry->fmap.Extent(); i++)
{
if (!occgeometry->fvispar[i-1].IsVisible()) continue;
glLoadName (i);
float mat_col[4];
mat_col[3] = 1;
TopoDS_Face face = TopoDS::Face(occgeometry->fmap(i));
if (!occgeometry->fvispar[i-1].IsHighlighted())
{
// Philippose - 30/01/2009
// OpenCascade XDE Support
Quantity_Color face_colour;
// Philippose - 23/02/2009
// Check to see if colours have been extracted first!!
// Forum bug-fox (Jean-Yves - 23/02/2009)
if(!(occgeometry->face_colours.IsNull())
&& (occgeometry->face_colours->GetColor(face,XCAFDoc_ColorSurf,face_colour)))
{
mat_col[0] = face_colour.Red();
mat_col[1] = face_colour.Green();
mat_col[2] = face_colour.Blue();
}
else
{
mat_col[0] = 0.0;
mat_col[1] = 1.0;
mat_col[2] = 0.0;
}
}
else
{
mat_col[0] = 0.8;
mat_col[1] = 0.2;
mat_col[2] = 0.2;
}
glMaterialfv (GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, mat_col);
TopLoc_Location loc;
Handle(Geom_Surface) surf = BRep_Tool::Surface (face);
BRepAdaptor_Surface sf(face, Standard_False);
BRepLProp_SLProps prop(sf, 1, 1e-5);
Handle(Poly_Triangulation) triangulation = BRep_Tool::Triangulation (face, loc);
if (triangulation.IsNull())
{
cout << "cannot visualize face " << i << endl;
occgeometry->fvispar[i-1].SetNotDrawable();
continue;
}
gp_Pnt2d uv;
gp_Pnt pnt;
gp_Vec n;
glBegin (GL_TRIANGLES);
int ntriangles = triangulation -> NbTriangles();
for (int j = 1; j <= ntriangles; j++)
{
Poly_Triangle triangle = (triangulation -> Triangles())(j);
gp_Pnt p[3];
for (int k = 1; k <= 3; k++)
p[k-1] = (triangulation -> Nodes())(triangle(k)).Transformed(loc);
for (int k = 1; k <= 3; k++)
{
uv = (triangulation -> UVNodes())(triangle(k));
prop.SetParameters (uv.X(), uv.Y());
// surf->D0 (uv.X(), uv.Y(), pnt);
if (prop.IsNormalDefined())
n = prop.Normal();
else
{
(*testout) << "Visualization of face " << i
<< ": Normal vector not defined" << endl;
// n = gp_Vec (0,0,0);
gp_Vec a(p[0],p[1]);
gp_Vec b(p[0],p[2]);
n = b^a;
}
if (face.Orientation() == TopAbs_REVERSED) n *= -1;
glNormal3f (n.X(), n.Y(), n.Z());
glVertex3f (p[k-1].X(), p[k-1].Y(), p[k-1].Z());
}
}
glEnd ();
}
glEndList ();
}
void ShapeGeometryBuilder::faceConstruct(const TopoDS_Face &faceIn)
{
TopLoc_Location location;
Handle(Poly_Triangulation) triangulation;
triangulation = BRep_Tool::Triangulation(faceIn, location);
if (triangulation.IsNull())
throw std::runtime_error("null triangulation in face construction");
bool signalOrientation(false);
if (faceIn.Orientation() == TopAbs_FORWARD)
signalOrientation = true;
gp_Trsf transformation;
bool identity = true;
if(!location.IsIdentity())
{
identity = false;
transformation = location.Transformation();
}
//vertices.
const TColgp_Array1OfPnt& nodes = triangulation->Nodes();
osg::Vec3Array *vertices = dynamic_cast<osg::Vec3Array *>(faceGeometry->getVertexArray());
osg::Vec3Array *normals = dynamic_cast<osg::Vec3Array *>(faceGeometry->getNormalArray());
osg::Vec4Array *colors = dynamic_cast<osg::Vec4Array *>(faceGeometry->getColorArray());
std::size_t offset = vertices->size();
for (int index(nodes.Lower()); index < nodes.Upper() + 1; ++index)
{
gp_Pnt point = nodes.Value(index);
if(!identity)
point.Transform(transformation);
vertices->push_back(osg::Vec3(point.X(), point.Y(), point.Z()));
normals->push_back(osg::Vec3(0.0, 0.0, 0.0));
colors->push_back(faceGeometry->getColor());
}
const Poly_Array1OfTriangle& triangles = triangulation->Triangles();
osg::ref_ptr<osg::DrawElementsUInt> indices = new osg::DrawElementsUInt
(GL_TRIANGLES, triangulation->NbTriangles() * 3);
for (int index(triangles.Lower()); index < triangles.Upper() + 1; ++index)
{
int N1, N2, N3;
triangles(index).Get(N1, N2, N3);
int factor = (index - 1) * 3;
if (!signalOrientation)
{
(*indices)[factor] = N3 - 1 + offset;
(*indices)[factor + 1] = N2 - 1 + offset;
(*indices)[factor + 2] = N1 - 1 + offset;
}
else
{
(*indices)[factor] = N1 - 1 + offset;
(*indices)[factor + 1] = N2 - 1 + offset;
(*indices)[factor + 2] = N3 - 1 + offset;
}
//store primitiveset index and vertex indes into map.
PSetVertexRecord record;
record.primitiveSetIndex = faceGeometry->getNumPrimitiveSets();
record.vertexIndex = (*indices)[factor];
pSetTriangleWrapper->pSetVertexContainer.insert(record);
record.vertexIndex = (*indices)[factor + 1];
pSetTriangleWrapper->pSetVertexContainer.insert(record);
record.vertexIndex = (*indices)[factor + 2];
pSetTriangleWrapper->pSetVertexContainer.insert(record);
//now that we are combining faces into one geometry, osgUtil SmoothingVisitor
//wants to 'average' out normals across faces. so we go back to manual calculation
//of surface normals.
osg::Vec3 pointOne(vertices->at((*indices)[factor]));
osg::Vec3 pointTwo(vertices->at((*indices)[factor + 1]));
osg::Vec3 pointThree(vertices->at((*indices)[factor + 2]));
osg::Vec3 axisOne(pointTwo - pointOne);
osg::Vec3 axisTwo(pointThree - pointOne);
osg::Vec3 currentNormal(axisOne ^ axisTwo);
if (currentNormal.isNaN())
continue;
currentNormal.normalize();
osg::Vec3 tempNormal;
tempNormal = (*normals)[(*indices)[factor]];
tempNormal += currentNormal;
tempNormal.normalize();
(*normals)[(*indices)[factor]] = tempNormal;
tempNormal = (*normals)[(*indices)[factor + 1]];
tempNormal += currentNormal;
tempNormal.normalize();
(*normals)[(*indices)[factor + 1]] = tempNormal;
tempNormal = (*normals)[(*indices)[factor + 2]];
tempNormal += currentNormal;
tempNormal.normalize();
(*normals)[(*indices)[factor + 2]] = tempNormal;
}
faceGeometry->addPrimitiveSet(indices.get());
boost::uuids::uuid id = seerShape->findShapeIdRecord(faceIn).id;
std::size_t lastPrimitiveIndex = faceGeometry->getNumPrimitiveSets() - 1;
if (!idPSetWrapperFace->hasId(id))
{
IdPSetRecord record;
record.id = id;
record.primitiveSetIndex = lastPrimitiveIndex;
idPSetWrapperFace->idPSetContainer.insert(record);
}
else
//ensure that the faces have the same primitive index between lod calls.
assert(lastPrimitiveIndex == idPSetWrapperFace->findPSetFromId(id));
}
//=======================================================================
// function: BuildSplitFaces
// purpose:
//=======================================================================
void GEOMAlgo_Builder::BuildSplitFaces()
{
const NMTDS_ShapesDataStructure& aDS=*myPaveFiller->DS();
NMTTools_PaveFiller* pPF=myPaveFiller;
NMTDS_InterfPool* pIP=pPF->IP();
BOPTools_CArray1OfSSInterference& aFFs=pIP->SSInterferences();
const Handle(IntTools_Context)& aCtx= pPF->Context();
//
Standard_Boolean bToReverse, bIsClosed, bIsDegenerated;
Standard_Integer i, aNb, aNbF, nF;
TopTools_MapOfShape aMFence;
TColStd_IndexedMapOfInteger aMFP;
TopExp_Explorer anExp;
TopoDS_Face aFF;
TopoDS_Edge aSp, aEE;
TopTools_ListIteratorOfListOfShape aIt;
TopAbs_Orientation anOriF, anOriE;
//
mySplitFaces.Clear();
//
// 1. Select Faces to process (MFP)
aNb=aDS.NumberOfShapesOfTheObject();
for (i=1; i<=aNb; ++i) {
const TopoDS_Shape& aF=aDS.Shape(i);
if (aF.ShapeType()!=TopAbs_FACE) {
continue;
}
if (!aMFence.Add(aF)) {
continue;
}
//
if (myInParts.Contains(aF)) {
aMFP.Add(i);
continue;
}
//
anExp.Init(aF, TopAbs_EDGE);
for (; anExp.More(); anExp.Next()) {
const TopoDS_Shape& aE=anExp.Current();
if (myImages.HasImage(aE)) {
aMFP.Add(i);
break;
}
}
//
//===
{
Standard_Integer aNbFFs, aNbSE, j, n1, n2;
//
aNbFFs=aFFs.Extent();
for (j=1; j<=aNbFFs; ++j) {
BOPTools_SSInterference& aFFj=aFFs(j);
aFFj.Indices(n1, n2);
if (!(n1==i || n2==i)) {
continue;
}
//
const TColStd_ListOfInteger& aLSE=aFFj.SharedEdges();
aNbSE=aLSE.Extent();
if (aNbSE) {
aMFP.Add(i);
break;
}
}
}
//===
//
}// for (i=1; i<=aNb; ++i)
//
// 2. ProcessFaces
aNbF=aMFP.Extent();
for (i=1; i<=aNbF; ++i) {
nF=aMFP(i);
const TopoDS_Face& aF=TopoDS::Face(aDS.Shape(nF));
anOriF=aF.Orientation();
aFF=aF;
aFF.Orientation(TopAbs_FORWARD);
//
aMFence.Clear();
//
// 2.1. Fill WES
GEOMAlgo_WireEdgeSet aWES;
aWES.SetFace(aFF);
//
// 2.1.1. Add Split parts
anExp.Init(aFF, TopAbs_EDGE);
for (; anExp.More(); anExp.Next()) {
const TopoDS_Edge& aE=TopoDS::Edge(anExp.Current());
anOriE=aE.Orientation();
//
if (!myImages.HasImage(aE)) {
if (anOriE==TopAbs_INTERNAL) {
aEE=aE;
aEE.Orientation(TopAbs_FORWARD);
aWES.AddStartElement(aEE);
aEE.Orientation(TopAbs_REVERSED);
aWES.AddStartElement(aEE);
}
else {
aWES.AddStartElement(aE);
}
continue;
}
//
bIsDegenerated=BRep_Tool::Degenerated(aE);
//modified by NIZNHY-PKV Wed Mar 07 07:46:09 2012f
bIsClosed=IsClosed(aE, aF);
//bIsClosed=BRep_Tool::IsClosed(aE, aF);
//modified by NIZNHY-PKV Wed Mar 07 07:46:13 2012t
//
const TopTools_ListOfShape& aLIE=myImages.Image(aE);
aIt.Initialize(aLIE);
for (; aIt.More(); aIt.Next()) {
aSp=TopoDS::Edge(aIt.Value());
//
if (bIsDegenerated) {
aSp.Orientation(anOriE);
aWES.AddStartElement(aSp);
continue;
}
//
if (anOriE==TopAbs_INTERNAL) {
aSp.Orientation(TopAbs_FORWARD);
aWES.AddStartElement(aSp);
aSp.Orientation(TopAbs_REVERSED);
aWES.AddStartElement(aSp);
continue;
}
//
if (bIsClosed){
if (aMFence.Add(aSp)) {
//
if (!BRep_Tool::IsClosed(aSp, aF)){
BOPTools_Tools3D::DoSplitSEAMOnFace(aSp, aF);
}
//
aSp.Orientation(TopAbs_FORWARD);
aWES.AddStartElement(aSp);
aSp.Orientation(TopAbs_REVERSED);
aWES.AddStartElement(aSp);
}
continue;
}// if (aMFence.Add(aSp))
//
aSp.Orientation(anOriE);
bToReverse=BOPTools_Tools3D::IsSplitToReverse1(aSp, aE, aCtx);
if (bToReverse) {
aSp.Reverse();
}
aWES.AddStartElement(aSp);
}// for (; aIt.More(); aIt.Next()) {
}// for (; anExp.More(); anExp.Next()) {
//
// 2.1.2. Add In2D Parts
if (myInParts.Contains(aF)) {
const TopTools_ListOfShape& aLE=myInParts.FindFromKey(aF);
aIt.Initialize(aLE);
for (; aIt.More(); aIt.Next()) {
aSp=TopoDS::Edge(aIt.Value());
//
aSp.Orientation(TopAbs_FORWARD);
aWES.AddStartElement(aSp);
//
aSp.Orientation(TopAbs_REVERSED);
aWES.AddStartElement(aSp);
}
}
//
// 2.2. Build images Faces
TopTools_ListOfShape aLFR;
GEOMAlgo_ShapeSet aS1, aS2;
//
const TopTools_ListOfShape& aSE=aWES.StartElements();
aS1.Add(aSE);
aS2.Add(aFF, TopAbs_EDGE);
if (aS1.IsEqual(aS2)) {
aLFR.Append(aF);
}
else {
GEOMAlgo_BuilderFace aBF;
//
aBF.SetFace(aFF);
aBF.SetContext(aCtx);
aBF.SetShapes(aSE);
// <-DEB
aBF.Perform();
//
const TopTools_ListOfShape& aLF=aBF.Areas();
aIt.Initialize(aLF);
for (; aIt.More(); aIt.Next()) {
TopoDS_Shape& aFR=aIt.Value();
if (anOriF==TopAbs_REVERSED) {
aFR.Orientation(TopAbs_REVERSED);
}
aLFR.Append(aFR);
}
}
//
// 2.3. Collect draft images Faces
mySplitFaces.Bind(aF, aLFR);
}//for (i=1; i<=aNbF; ++i)
}
void PovTools::transferToArray(const TopoDS_Face& aFace,gp_Vec** vertices,gp_Vec** vertexnormals, long** cons,int &nbNodesInFace,int &nbTriInFace )
{
TopLoc_Location aLoc;
// doing the meshing and checking the result
//BRepMesh_IncrementalMesh MESH(aFace,fDeflection);
Handle(Poly_Triangulation) aPoly = BRep_Tool::Triangulation(aFace,aLoc);
if (aPoly.IsNull()) {
Base::Console().Log("Empty face trianglutaion\n");
nbNodesInFace =0;
nbTriInFace = 0;
vertices = 0l;
cons = 0l;
return;
}
// getting the transformation of the shape/face
gp_Trsf myTransf;
Standard_Boolean identity = true;
if (!aLoc.IsIdentity()) {
identity = false;
myTransf = aLoc.Transformation();
}
Standard_Integer i;
// getting size and create the array
nbNodesInFace = aPoly->NbNodes();
nbTriInFace = aPoly->NbTriangles();
*vertices = new gp_Vec[nbNodesInFace];
*vertexnormals = new gp_Vec[nbNodesInFace];
for (i=0; i < nbNodesInFace; i++) {
(*vertexnormals)[i]= gp_Vec(0.0,0.0,0.0);
}
*cons = new long[3*(nbTriInFace)+1];
// check orientation
TopAbs_Orientation orient = aFace.Orientation();
// cycling through the poly mesh
const Poly_Array1OfTriangle& Triangles = aPoly->Triangles();
const TColgp_Array1OfPnt& Nodes = aPoly->Nodes();
for (i=1; i<=nbTriInFace; i++) {
// Get the triangle
Standard_Integer N1,N2,N3;
Triangles(i).Get(N1,N2,N3);
// change orientation of the triangles
if ( orient != TopAbs_FORWARD )
{
Standard_Integer tmp = N1;
N1 = N2;
N2 = tmp;
}
gp_Pnt V1 = Nodes(N1);
gp_Pnt V2 = Nodes(N2);
gp_Pnt V3 = Nodes(N3);
// transform the vertices to the place of the face
if (!identity) {
V1.Transform(myTransf);
V2.Transform(myTransf);
V3.Transform(myTransf);
}
// Calculate triangle normal
gp_Vec v1(V1.X(),V1.Y(),V1.Z()),v2(V2.X(),V2.Y(),V2.Z()),v3(V3.X(),V3.Y(),V3.Z());
gp_Vec Normal = (v2-v1)^(v3-v1);
//Standard_Real Area = 0.5 * Normal.Magnitude();
// add the triangle normal to the vertex normal for all points of this triangle
(*vertexnormals)[N1-1] += gp_Vec(Normal.X(),Normal.Y(),Normal.Z());
(*vertexnormals)[N2-1] += gp_Vec(Normal.X(),Normal.Y(),Normal.Z());
(*vertexnormals)[N3-1] += gp_Vec(Normal.X(),Normal.Y(),Normal.Z());
(*vertices)[N1-1].SetX((float)(V1.X()));
(*vertices)[N1-1].SetY((float)(V1.Y()));
(*vertices)[N1-1].SetZ((float)(V1.Z()));
(*vertices)[N2-1].SetX((float)(V2.X()));
(*vertices)[N2-1].SetY((float)(V2.Y()));
(*vertices)[N2-1].SetZ((float)(V2.Z()));
(*vertices)[N3-1].SetX((float)(V3.X()));
(*vertices)[N3-1].SetY((float)(V3.Y()));
(*vertices)[N3-1].SetZ((float)(V3.Z()));
int j = i - 1;
N1--;
N2--;
N3--;
(*cons)[3*j] = N1;
(*cons)[3*j+1] = N2;
(*cons)[3*j+2] = N3;
}
// normalize all vertex normals
for (i=0; i < nbNodesInFace; i++) {
gp_Dir clNormal;
try {
Handle(Geom_Surface) Surface = BRep_Tool::Surface(aFace);
gp_Pnt vertex((*vertices)[i].XYZ());
// gp_Pnt vertex((*vertices)[i][0], (*vertices)[i][1], (*vertices)[i][2]);
GeomAPI_ProjectPointOnSurf ProPntSrf(vertex, Surface);
Standard_Real fU, fV;
ProPntSrf.Parameters(1, fU, fV);
GeomLProp_SLProps clPropOfFace(Surface, fU, fV, 2, gp::Resolution());
clNormal = clPropOfFace.Normal();
gp_Vec temp = clNormal;
//Base::Console().Log("unterschied:%.2f",temp.dot((*vertexnormals)[i]));
if ( temp * (*vertexnormals)[i] < 0 )
temp = -temp;
(*vertexnormals)[i] = temp;
}
catch (...) {
}
(*vertexnormals)[i].Normalize();
}
}
void BuildMesh(osg::Geode *geode, const TopoDS_Face &face, const osg::Vec4 &color, double deflection)
{
osg::ref_ptr<deprecated_osg::Geometry> triGeom = new deprecated_osg::Geometry();
osg::ref_ptr<osg::Vec3Array> vertices = new osg::Vec3Array();
osg::ref_ptr<osg::Vec3Array> normals = new osg::Vec3Array();
TopLoc_Location location;
BRepMesh::Mesh(face, deflection);
const Handle_Poly_Triangulation &triFace = BRep_Tool::Triangulation(face, location);
Standard_Integer nTriangles = triFace->NbTriangles();
gp_Pnt vertex1;
gp_Pnt vertex2;
gp_Pnt vertex3;
Standard_Integer nVertexIndex1 = 0;
Standard_Integer nVertexIndex2 = 0;
Standard_Integer nVertexIndex3 = 0;
const TColgp_Array1OfPnt &nodes = triFace->Nodes();
const Poly_Array1OfTriangle &triangles = triFace->Triangles();
for (Standard_Integer i = 1; i <= nTriangles; i++)
{
const Poly_Triangle &aTriangle = triangles.Value(i);
aTriangle.Get(nVertexIndex1, nVertexIndex2, nVertexIndex3);
vertex1 = nodes.Value(nVertexIndex1).Transformed(location.Transformation());
vertex2 = nodes.Value(nVertexIndex2).Transformed(location.Transformation());
vertex3 = nodes.Value(nVertexIndex3).Transformed(location.Transformation());
gp_XYZ vector12(vertex2.XYZ() - vertex1.XYZ());
gp_XYZ vector13(vertex3.XYZ() - vertex1.XYZ());
gp_XYZ normal = vector12.Crossed(vector13);
Standard_Real rModulus = normal.Modulus();
if (rModulus > gp::Resolution())
{
normal.Normalize();
}
else
{
normal.SetCoord(0., 0., 0.);
}
if (face.Orientation() != TopAbs_FORWARD)
{
normal.Reverse();
}
vertices->push_back(osg::Vec3(vertex1.X(), vertex1.Y(), vertex1.Z()));
vertices->push_back(osg::Vec3(vertex2.X(), vertex2.Y(), vertex2.Z()));
vertices->push_back(osg::Vec3(vertex3.X(), vertex3.Y(), vertex3.Z()));
normals->push_back(osg::Vec3(normal.X(), normal.Y(), normal.Z()));
}
triGeom->setVertexArray(vertices);
triGeom->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::TRIANGLES, 0, vertices->size()));
triGeom->setNormalArray(normals);
triGeom->setNormalBinding(deprecated_osg::Geometry::BIND_PER_PRIMITIVE);
osg::ref_ptr<osg::Vec4Array> colArr = new osg::Vec4Array();
colArr->push_back(color);
triGeom->setColorArray(colArr, osg::Array::BIND_OVERALL);
geode->addDrawable(triGeom);
}
void BuildShapeMesh(osg::Geode *geode, const TopoDS_Shape &shape, const osg::Vec4 &color, double deflection)
{
bool bSetNormal = true;
osg::ref_ptr<deprecated_osg::Geometry> triGeom = new deprecated_osg::Geometry();
osg::ref_ptr<osg::Vec3Array> theVertices = new osg::Vec3Array();
osg::ref_ptr<osg::Vec3Array> theNormals = new osg::Vec3Array();
BRepMesh::Mesh(shape, deflection);
TopExp_Explorer faceExplorer;
for (faceExplorer.Init(shape, TopAbs_FACE); faceExplorer.More(); faceExplorer.Next())
{
TopLoc_Location theLocation;
TopoDS_Face theFace = TopoDS::Face(faceExplorer.Current());
if (theFace.IsNull())
continue;
const Handle_Poly_Triangulation &theTriangulation = BRep_Tool::Triangulation(theFace, theLocation);
BRepLProp_SLProps theProp(BRepAdaptor_Surface(theFace), 1, Precision::Confusion());
Standard_Integer nTriangles = theTriangulation->NbTriangles();
for (Standard_Integer i = 1; i <= nTriangles; i++)
{
const Poly_Triangle& theTriangle = theTriangulation->Triangles().Value(i);
gp_Pnt theVertex1 = theTriangulation->Nodes().Value(theTriangle(1));
gp_Pnt theVertex2 = theTriangulation->Nodes().Value(theTriangle(2));
gp_Pnt theVertex3 = theTriangulation->Nodes().Value(theTriangle(3));
const gp_Pnt2d &theUV1 = theTriangulation->UVNodes().Value(theTriangle(1));
const gp_Pnt2d &theUV2 = theTriangulation->UVNodes().Value(theTriangle(2));
const gp_Pnt2d &theUV3 = theTriangulation->UVNodes().Value(theTriangle(3));
theVertex1.Transform(theLocation.Transformation());
theVertex2.Transform(theLocation.Transformation());
theVertex3.Transform(theLocation.Transformation());
// find the normal for the triangle mesh.
gp_Vec V12(theVertex1, theVertex2);
gp_Vec V13(theVertex1, theVertex3);
gp_Vec theNormal = V12 ^ V13;
gp_Vec theNormal1 = theNormal;
gp_Vec theNormal2 = theNormal;
gp_Vec theNormal3 = theNormal;
if (theNormal.Magnitude() > Precision::Confusion())
{
theNormal.Normalize();
theNormal1.Normalize();
theNormal2.Normalize();
theNormal3.Normalize();
}
theProp.SetParameters(theUV1.X(), theUV1.Y());
if (theProp.IsNormalDefined())
{
theNormal1 = theProp.Normal();
}
theProp.SetParameters(theUV2.X(), theUV2.Y());
if (theProp.IsNormalDefined())
{
theNormal2 = theProp.Normal();
}
theProp.SetParameters(theUV3.X(), theUV3.Y());
if (theProp.IsNormalDefined())
{
theNormal3 = theProp.Normal();
}
if (theFace.Orientation() == TopAbs_REVERSED)
{
theNormal.Reverse();
theNormal1.Reverse();
theNormal2.Reverse();
theNormal3.Reverse();
}
theVertices->push_back(osg::Vec3(theVertex1.X(), theVertex1.Y(), theVertex1.Z()));
theVertices->push_back(osg::Vec3(theVertex2.X(), theVertex2.Y(), theVertex2.Z()));
theVertices->push_back(osg::Vec3(theVertex3.X(), theVertex3.Y(), theVertex3.Z()));
if (bSetNormal)
{
theNormals->push_back(osg::Vec3(theNormal1.X(), theNormal1.Y(), theNormal1.Z()));
theNormals->push_back(osg::Vec3(theNormal2.X(), theNormal2.Y(), theNormal2.Z()));
theNormals->push_back(osg::Vec3(theNormal3.X(), theNormal3.Y(), theNormal3.Z()));
}
else
{
theNormals->push_back(osg::Vec3(theNormal.X(), theNormal.Y(), theNormal.Z()));
theNormals->push_back(osg::Vec3(theNormal.X(), theNormal.Y(), theNormal.Z()));
theNormals->push_back(osg::Vec3(theNormal.X(), theNormal.Y(), theNormal.Z()));
}
}
}
triGeom->setVertexArray(theVertices.get());
triGeom->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::TRIANGLES, 0, theVertices->size()));
triGeom->setNormalArray(theNormals);
triGeom->setNormalBinding(deprecated_osg::Geometry::BIND_PER_VERTEX);
osg::ref_ptr<osg::Vec4Array> colArr = new osg::Vec4Array();
colArr->push_back(color);
triGeom->setColorArray(colArr, osg::Array::BIND_OVERALL);
geode->addDrawable(triGeom);
}
bool NETGENPlugin_NETGEN_2D_ONLY::Compute(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape)
{
netgen::multithread.terminate = 0;
//netgen::multithread.task = "Surface meshing";
SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
SMESH_MesherHelper helper(aMesh);
helper.SetElementsOnShape( true );
NETGENPlugin_NetgenLibWrapper ngLib;
ngLib._isComputeOk = false;
netgen::Mesh ngMeshNoLocSize;
#if NETGEN_VERSION < 6
netgen::Mesh * ngMeshes[2] = { (netgen::Mesh*) ngLib._ngMesh, & ngMeshNoLocSize };
#else
netgen::Mesh * ngMeshes[2] = { (netgen::Mesh*) ngLib._ngMesh.get(), & ngMeshNoLocSize };
#endif
netgen::OCCGeometry occgeoComm;
// min / max sizes are set as follows:
// if ( _hypParameters )
// min and max are defined by the user
// else if ( _hypLengthFromEdges )
// min = aMesher.GetDefaultMinSize()
// max = average segment len of a FACE
// else if ( _hypMaxElementArea )
// min = aMesher.GetDefaultMinSize()
// max = f( _hypMaxElementArea )
// else
// min = aMesher.GetDefaultMinSize()
// max = max segment len of a FACE
NETGENPlugin_Mesher aMesher( &aMesh, aShape, /*isVolume=*/false);
aMesher.SetParameters( _hypParameters ); // _hypParameters -> netgen::mparam
const bool toOptimize = _hypParameters ? _hypParameters->GetOptimize() : true;
if ( _hypMaxElementArea )
{
netgen::mparam.maxh = sqrt( 2. * _hypMaxElementArea->GetMaxArea() / sqrt(3.0) );
}
if ( _hypQuadranglePreference )
netgen::mparam.quad = true;
// local size is common for all FACEs in aShape?
const bool isCommonLocalSize = ( !_hypLengthFromEdges && !_hypMaxElementArea && netgen::mparam.uselocalh );
const bool isDefaultHyp = ( !_hypLengthFromEdges && !_hypMaxElementArea && !_hypParameters );
if ( isCommonLocalSize ) // compute common local size in ngMeshes[0]
{
//list< SMESH_subMesh* > meshedSM[4]; --> all sub-shapes are added to occgeoComm
aMesher.PrepareOCCgeometry( occgeoComm, aShape, aMesh );//, meshedSM );
// local size set at MESHCONST_ANALYSE step depends on
// minh, face_maxh, grading and curvaturesafety; find minh if not set by the user
if ( !_hypParameters || netgen::mparam.minh < DBL_MIN )
{
if ( !_hypParameters )
netgen::mparam.maxh = occgeoComm.GetBoundingBox().Diam() / 3.;
netgen::mparam.minh = aMesher.GetDefaultMinSize( aShape, netgen::mparam.maxh );
}
// set local size depending on curvature and NOT closeness of EDGEs
netgen::occparam.resthcloseedgeenable = false;
//netgen::occparam.resthcloseedgefac = 1.0 + netgen::mparam.grading;
occgeoComm.face_maxh = netgen::mparam.maxh;
netgen::OCCSetLocalMeshSize( occgeoComm, *ngMeshes[0] );
occgeoComm.emap.Clear();
occgeoComm.vmap.Clear();
// set local size according to size of existing segments
const double factor = netgen::occparam.resthcloseedgefac;
TopTools_IndexedMapOfShape edgeMap;
TopExp::MapShapes( aMesh.GetShapeToMesh(), TopAbs_EDGE, edgeMap );
for ( int iE = 1; iE <= edgeMap.Extent(); ++iE )
{
const TopoDS_Shape& edge = edgeMap( iE );
if ( SMESH_Algo::isDegenerated( TopoDS::Edge( edge ))/* ||
helper.IsSubShape( edge, aShape )*/)
continue;
SMESHDS_SubMesh* smDS = meshDS->MeshElements( edge );
if ( !smDS ) continue;
SMDS_ElemIteratorPtr segIt = smDS->GetElements();
while ( segIt->more() )
{
const SMDS_MeshElement* seg = segIt->next();
SMESH_TNodeXYZ n1 = seg->GetNode(0);
SMESH_TNodeXYZ n2 = seg->GetNode(1);
gp_XYZ p = 0.5 * ( n1 + n2 );
netgen::Point3d pi(p.X(), p.Y(), p.Z());
ngMeshes[0]->RestrictLocalH( pi, factor * ( n1 - n2 ).Modulus() );
}
}
}
netgen::mparam.uselocalh = toOptimize; // restore as it is used at surface optimization
// ==================
// Loop on all FACEs
// ==================
vector< const SMDS_MeshNode* > nodeVec;
TopExp_Explorer fExp( aShape, TopAbs_FACE );
for ( int iF = 0; fExp.More(); fExp.Next(), ++iF )
{
TopoDS_Face F = TopoDS::Face( fExp.Current() /*.Oriented( TopAbs_FORWARD )*/);
int faceID = meshDS->ShapeToIndex( F );
SMESH_ComputeErrorPtr& faceErr = aMesh.GetSubMesh( F )->GetComputeError();
_quadraticMesh = helper.IsQuadraticSubMesh( F );
const bool ignoreMediumNodes = _quadraticMesh;
// build viscous layers if required
if ( F.Orientation() != TopAbs_FORWARD &&
F.Orientation() != TopAbs_REVERSED )
F.Orientation( TopAbs_FORWARD ); // avoid pb with TopAbs_INTERNAL
SMESH_ProxyMesh::Ptr proxyMesh = StdMeshers_ViscousLayers2D::Compute( aMesh, F );
if ( !proxyMesh )
continue;
// ------------------------
// get all EDGEs of a FACE
// ------------------------
TSideVector wires =
StdMeshers_FaceSide::GetFaceWires( F, aMesh, ignoreMediumNodes, faceErr, proxyMesh );
if ( faceErr && !faceErr->IsOK() )
continue;
int nbWires = wires.size();
if ( nbWires == 0 )
{
faceErr.reset
( new SMESH_ComputeError
( COMPERR_ALGO_FAILED, "Problem in StdMeshers_FaceSide::GetFaceWires()" ));
continue;
}
if ( wires[0]->NbSegments() < 3 ) // ex: a circle with 2 segments
{
faceErr.reset
( new SMESH_ComputeError
( COMPERR_BAD_INPUT_MESH, SMESH_Comment("Too few segments: ")<<wires[0]->NbSegments()) );
continue;
}
// ----------------------
// compute maxh of a FACE
// ----------------------
if ( !_hypParameters )
{
double edgeLength = 0;
if (_hypLengthFromEdges )
{
// compute edgeLength as an average segment length
int nbSegments = 0;
for ( int iW = 0; iW < nbWires; ++iW )
{
edgeLength += wires[ iW ]->Length();
nbSegments += wires[ iW ]->NbSegments();
}
if ( nbSegments )
edgeLength /= nbSegments;
netgen::mparam.maxh = edgeLength;
}
else if ( isDefaultHyp )
{
// set edgeLength by a longest segment
double maxSeg2 = 0;
for ( int iW = 0; iW < nbWires; ++iW )
{
const UVPtStructVec& points = wires[ iW ]->GetUVPtStruct();
if ( points.empty() )
return error( COMPERR_BAD_INPUT_MESH );
gp_Pnt pPrev = SMESH_TNodeXYZ( points[0].node );
for ( size_t i = 1; i < points.size(); ++i )
{
gp_Pnt p = SMESH_TNodeXYZ( points[i].node );
maxSeg2 = Max( maxSeg2, p.SquareDistance( pPrev ));
pPrev = p;
}
}
edgeLength = sqrt( maxSeg2 ) * 1.05;
netgen::mparam.maxh = edgeLength;
}
if ( netgen::mparam.maxh < DBL_MIN )
netgen::mparam.maxh = occgeoComm.GetBoundingBox().Diam();
if ( !isCommonLocalSize )
{
netgen::mparam.minh = aMesher.GetDefaultMinSize( F, netgen::mparam.maxh );
}
}
// prepare occgeom
netgen::OCCGeometry occgeom;
occgeom.shape = F;
occgeom.fmap.Add( F );
occgeom.CalcBoundingBox();
occgeom.facemeshstatus.SetSize(1);
occgeom.facemeshstatus = 0;
occgeom.face_maxh_modified.SetSize(1);
occgeom.face_maxh_modified = 0;
occgeom.face_maxh.SetSize(1);
occgeom.face_maxh = netgen::mparam.maxh;
// -------------------------
// Fill netgen mesh
// -------------------------
// MESHCONST_ANALYSE step may lead to a failure, so we make an attempt
// w/o MESHCONST_ANALYSE at the second loop
int err = 0;
enum { LOC_SIZE, NO_LOC_SIZE };
int iLoop = isCommonLocalSize ? 0 : 1;
for ( ; iLoop < 2; iLoop++ )
{
//bool isMESHCONST_ANALYSE = false;
InitComputeError();
netgen::Mesh * ngMesh = ngMeshes[ iLoop ];
ngMesh->DeleteMesh();
if ( iLoop == NO_LOC_SIZE )
{
ngMesh->SetGlobalH ( mparam.maxh );
ngMesh->SetMinimalH( mparam.minh );
Box<3> bb = occgeom.GetBoundingBox();
bb.Increase (bb.Diam()/10);
ngMesh->SetLocalH (bb.PMin(), bb.PMax(), mparam.grading);
}
nodeVec.clear();
faceErr = aMesher.AddSegmentsToMesh( *ngMesh, occgeom, wires, helper, nodeVec,
/*overrideMinH=*/!_hypParameters);
if ( faceErr && !faceErr->IsOK() )
break;
//if ( !isCommonLocalSize )
//limitSize( ngMesh, mparam.maxh * 0.8);
// -------------------------
// Generate surface mesh
// -------------------------
const int startWith = MESHCONST_MESHSURFACE;
const int endWith = toOptimize ? MESHCONST_OPTSURFACE : MESHCONST_MESHSURFACE;
SMESH_Comment str;
try {
OCC_CATCH_SIGNALS;
#if NETGEN_VERSION >=6
std::shared_ptr<netgen::Mesh> mesh_ptr(ngMesh, [](netgen::Mesh*) {});
err = netgen::OCCGenerateMesh(occgeom, mesh_ptr, netgen::mparam, startWith, endWith);
#elif NETGEN_VERSION > 4
err = netgen::OCCGenerateMesh(occgeom, ngMesh, netgen::mparam, startWith, endWith);
#else
char *optstr = 0;
err = netgen::OCCGenerateMesh(occgeom, ngMesh, startWith, endWith, optstr);
#endif
if ( netgen::multithread.terminate )
return false;
if ( err )
str << "Error in netgen::OCCGenerateMesh() at " << netgen::multithread.task;
}
catch (Standard_Failure& ex)
{
err = 1;
str << "Exception in netgen::OCCGenerateMesh()"
<< " at " << netgen::multithread.task
<< ": " << ex.DynamicType()->Name();
if ( ex.GetMessageString() && strlen( ex.GetMessageString() ))
str << ": " << ex.GetMessageString();
}
catch (...) {
err = 1;
str << "Exception in netgen::OCCGenerateMesh()"
<< " at " << netgen::multithread.task;
}
if ( err )
{
if ( aMesher.FixFaceMesh( occgeom, *ngMesh, 1 ))
break;
if ( iLoop == LOC_SIZE )
{
netgen::mparam.minh = netgen::mparam.maxh;
netgen::mparam.maxh = 0;
for ( int iW = 0; iW < wires.size(); ++iW )
{
StdMeshers_FaceSidePtr wire = wires[ iW ];
const vector<UVPtStruct>& uvPtVec = wire->GetUVPtStruct();
for ( size_t iP = 1; iP < uvPtVec.size(); ++iP )
{
SMESH_TNodeXYZ p( uvPtVec[ iP ].node );
netgen::Point3d np( p.X(),p.Y(),p.Z());
double segLen = p.Distance( uvPtVec[ iP-1 ].node );
double size = ngMesh->GetH( np );
netgen::mparam.minh = Min( netgen::mparam.minh, size );
netgen::mparam.maxh = Max( netgen::mparam.maxh, segLen );
}
}
//cerr << "min " << netgen::mparam.minh << " max " << netgen::mparam.maxh << endl;
netgen::mparam.minh *= 0.9;
netgen::mparam.maxh *= 1.1;
continue;
}
else
{
faceErr.reset( new SMESH_ComputeError( COMPERR_ALGO_FAILED, str ));
}
}
// ----------------------------------------------------
// Fill the SMESHDS with the generated nodes and faces
// ----------------------------------------------------
int nbNodes = ngMesh->GetNP();
int nbFaces = ngMesh->GetNSE();
int nbInputNodes = nodeVec.size()-1;
nodeVec.resize( nbNodes+1, 0 );
// add nodes
for ( int ngID = nbInputNodes + 1; ngID <= nbNodes; ++ngID )
{
const MeshPoint& ngPoint = ngMesh->Point( ngID );
SMDS_MeshNode * node = meshDS->AddNode(ngPoint(0), ngPoint(1), ngPoint(2));
nodeVec[ ngID ] = node;
}
// create faces
int i,j;
vector<const SMDS_MeshNode*> nodes;
for ( i = 1; i <= nbFaces ; ++i )
{
const Element2d& elem = ngMesh->SurfaceElement(i);
nodes.resize( elem.GetNP() );
for (j=1; j <= elem.GetNP(); ++j)
{
int pind = elem.PNum(j);
if ( pind < 1 )
break;
nodes[ j-1 ] = nodeVec[ pind ];
if ( nodes[ j-1 ]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_3DSPACE )
{
const PointGeomInfo& pgi = elem.GeomInfoPi(j);
meshDS->SetNodeOnFace( nodes[ j-1 ], faceID, pgi.u, pgi.v);
}
}
if ( j > elem.GetNP() )
{
SMDS_MeshFace* face = 0;
if ( elem.GetType() == TRIG )
face = helper.AddFace(nodes[0],nodes[1],nodes[2]);
else
face = helper.AddFace(nodes[0],nodes[1],nodes[2],nodes[3]);
}
}
break;
} // two attempts
} // loop on FACEs
return true;
}
//=======================================================================
//function :IsSplitToReverse
//purpose :
//=======================================================================
Standard_Boolean GEOMAlgo_Tools3D::IsSplitToReverse(const TopoDS_Face& theFSp,
const TopoDS_Face& theFSr,
IntTools_Context& theContext)
{
Standard_Boolean bRet, bFound, bInFace;
Standard_Real aT1, aT2, aT, aU, aV, aScPr;
gp_Pnt aPFSp, aPFSr;
gp_Dir aDNFSp;
gp_Vec aD1U, aD1V;
Handle(Geom_Surface) aSr, aSp;
TopAbs_Orientation aOrSr, aOrSp;
TopExp_Explorer anExp;
TopoDS_Edge aESp;
//
bRet=Standard_False;
//
aSr=BRep_Tool::Surface(theFSr);
aSp=BRep_Tool::Surface(theFSp);
if (aSr==aSp) {
aOrSr=theFSr.Orientation();
aOrSp=theFSp.Orientation();
bRet=(aOrSr!=aOrSp);
return bRet;
}
//
bFound=Standard_False;
anExp.Init(theFSp, TopAbs_EDGE);
for (; anExp.More(); anExp.Next()) {
aESp=TopoDS::Edge(anExp.Current());
if (!BRep_Tool::Degenerated(aESp)) {
if (!BRep_Tool::IsClosed(aESp, theFSp)) {
bFound=!bFound;
break;
}
}
}
if (!bFound) {
return bRet;
}
//
BRep_Tool::Range(aESp, aT1, aT2);
aT=BOPTools_Tools2D::IntermediatePoint(aT1, aT2);
BOPTools_Tools3D::GetApproxNormalToFaceOnEdge(aESp, theFSp, aT, aPFSp, aDNFSp);
//
// Parts of theContext.ComputeVS(..)
GeomAPI_ProjectPointOnSurf& aProjector=theContext.ProjPS(theFSr);
aProjector.Perform(aPFSp);
if (!aProjector.IsDone()) {
return bRet;
}
//
aProjector.LowerDistanceParameters(aU, aV);
gp_Pnt2d aP2D(aU, aV);
bInFace=theContext.IsPointInFace (theFSr, aP2D);
if (!bInFace) {
return bRet;
}
//
aSr->D1(aU, aV, aPFSr, aD1U, aD1V);
gp_Dir aDD1U(aD1U);
gp_Dir aDD1V(aD1V);
gp_Dir aDNFSr=aDD1U^aDD1V;
if (theFSr.Orientation()==TopAbs_REVERSED){
aDNFSr.Reverse();
}
//
aScPr=aDNFSp*aDNFSr;
bRet=(aScPr<0.);
//
return bRet;
}
//=======================================================================
//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_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;
}
//=======================================================================
//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;
}
void DrawFace(TopoDS_Face face,void(*callbackfunc)(const double* x, const double* n), bool just_one_average_normal)
{
double x[9], n[9];
StdPrs_ToolShadedShape SST;
// Get triangulation
TopLoc_Location L;
Handle_Poly_Triangulation facing = BRep_Tool::Triangulation(face,L);
gp_Trsf tr = L;
if(facing.IsNull()){
#if 0
BRepAdaptor_Surface surface(face, Standard_True);
double u0 = surface.FirstUParameter();
double u1 = surface.LastUParameter();
double v0 = surface.FirstVParameter();
double v1 = surface.LastVParameter();
const int numi = 10;
const int numj = 10;
for(int i = 0; i<numi; i++)
{
for(int j = 0; j<numj; j++)
{
double uA = -1.2 + 2.5 *(double)i / numi;
double uB = -1.2 + 2.5 *(double)(i+1) / numi;
double vA = 10* (double)j / numj;
double vB = 10*(double)(j+1) / numj;
gp_Pnt p0, p1, p2, p3;
gp_Dir n0 = GetFaceNormalAtUV(face, uA, vA, &p0);
gp_Dir n1 = GetFaceNormalAtUV(face, uB, vA, &p1);
gp_Dir n2 = GetFaceNormalAtUV(face, uB, vB, &p2);
gp_Dir n3 = GetFaceNormalAtUV(face, uA, vB, &p3);
x[0] = p0.X();
x[1] = p0.Y();
x[2] = p0.Z();
x[3] = p1.X();
x[4] = p1.Y();
x[5] = p1.Z();
x[6] = p2.X();
x[7] = p2.Y();
x[8] = p2.Z();
n[0] = n0.X();
n[1] = n0.Y();
n[2] = n0.Z();
n[3] = n1.X();
n[4] = n1.Y();
n[5] = n1.Z();
n[6] = n2.X();
n[7] = n2.Y();
n[8] = n2.Z();
(*callbackfunc)(x, n);
x[0] = p0.X();
x[1] = p0.Y();
x[2] = p0.Z();
x[3] = p2.X();
x[4] = p2.Y();
x[5] = p2.Z();
x[6] = p3.X();
x[7] = p3.Y();
x[8] = p3.Z();
n[0] = n0.X();
n[1] = n0.Y();
n[2] = n0.Z();
n[3] = n2.X();
n[4] = n2.Y();
n[5] = n2.Z();
n[6] = n3.X();
n[7] = n3.Y();
n[8] = n3.Z();
(*callbackfunc)(x, n);
}
}
#endif
}
else
{
Poly_Connect pc(facing);
const TColgp_Array1OfPnt& Nodes = facing->Nodes();
const Poly_Array1OfTriangle& triangles = facing->Triangles();
TColgp_Array1OfDir myNormal(Nodes.Lower(), Nodes.Upper());
SST.Normal(face, pc, myNormal);
Standard_Integer nnn = facing->NbTriangles(); // nnn : nombre de triangles
Standard_Integer nt, n1, n2, n3 = 0; // nt : triangle courant
// ni : sommet i du triangle courant
for (nt = 1; nt <= nnn; nt++)
{
if (face.Orientation() == TopAbs_REVERSED) // si la face est "reversed"
triangles(nt).Get(n1,n3,n2); // le triangle est n1,n3,n2
else
triangles(nt).Get(n1,n2,n3); // le triangle est n1,n2,n3
if (TriangleIsValid (Nodes(n1),Nodes(n2),Nodes(n3)) )
{
gp_Pnt v1 = Nodes(n1).Transformed(tr);
gp_Pnt v2 = Nodes(n2).Transformed(tr);
gp_Pnt v3 = Nodes(n3).Transformed(tr);
x[0] = v1.X();
x[1] = v1.Y();
x[2] = v1.Z();
x[3] = v2.X();
x[4] = v2.Y();
x[5] = v2.Z();
x[6] = v3.X();
x[7] = v3.Y();
x[8] = v3.Z();
if(just_one_average_normal)
{
gp_Vec V1(v1, v2);
gp_Vec V2(v1, v3);
extract((V1 ^ V2).Normalized(), n);
}
else
{
n[0] = myNormal(n1).X();
n[1] = myNormal(n1).Y();
n[2] = myNormal(n1).Z();
n[3] = myNormal(n2).X();
n[4] = myNormal(n2).Y();
n[5] = myNormal(n2).Z();
n[6] = myNormal(n3).X();
n[7] = myNormal(n3).Y();
n[8] = myNormal(n3).Z();
}
(*callbackfunc)(x, n);
}
}
}
}