IPAL52781: Orientation of a wall face created by revolution is wrong

IPAL52850: ConvertToQuadratic creates invalid triangles
Regression of imps_09/K0

doc/salome/gui/SMESH/input/extrusion.doc

@@ -48,6 +48,11 @@ The following dialog will appear:
 
 <li>In this dialog:
 <ul>
+  <li>Use \a Selection button to specify what you are going to
+    select at a given moment, \b Nodes, \b Edges or \b Faces.
+    \image html image120.png
+    <center><em>"Selection" button</em></center>
+  </li>
   <li>Specify \b Nodes, \b Edges and \b Faces, which will be extruded, by one
     of following means:
     <ul>

doc/salome/gui/SMESH/input/revolution.doc

@@ -68,16 +68,16 @@ The following dialog will appear:
       <ul> 
         <li> <b>Angle by Step</b> - the elements are revolved by the
           specified angle at each step (i.e. for Angle=30 and Number of
-          Steps=2, the elements will be extruded by 30 degrees twice for a
-          total of 30*2=60)
-\image html revolutionsn2.png "Example of Revolution with Angle by Step"
+          Steps=3, the elements will be extruded by 30 degrees twice for a
+          total of 30*3=90)
+\image html revolutionsn2.png "Example of Revolution with Angle by Step. Angle=30 and Number of Steps=3"
         </li>
         <li> <b>Total Angle</b> - the elements are revolved by the
           specified angle only once and the number of steps defines the
-          number of iterations (i.e. for Angle=30 and Number of Steps=2,
-          the elements will be revolved by 30/2=15 degrees twice for a
+          number of iterations (i.e. for Angle=30 and Number of Steps=3,
+          the elements will be revolved by 30/3=10 degrees twice for a
           total of 30).
-\image html revolutionsn1.png "Example of Revolution with Total Angle"
+\image html revolutionsn1.png "Example of Revolution with Total Angle. Angle=30 and Number of Steps=3"
         </li>
       </ul>
     </li>

src/SMDS/SMDS_Mesh.hxx

@@ -58,7 +58,7 @@
 
 #define MYASSERT(val) if (!(val)) throw SALOME_Exception(LOCALIZED("assertion not verified"));
 
-class SMDS_EXPORT SMDS_Mesh:public SMDS_MeshObject
+class SMDS_EXPORT SMDS_Mesh : public SMDS_MeshObject
 {
 public:
   friend class SMDS_MeshIDFactory;

src/SMDS/SMDS_VolumeTool.hxx

@@ -38,6 +38,7 @@ class SMDS_MeshVolume;
 
 #include <vector>
 #include <set>
+#include <map>
 
 // =========================================================================
 //
@@ -90,10 +91,10 @@ class SMDS_EXPORT SMDS_VolumeTool
   // top and bottom faces are reversed.
   // Result of IsForward() and methods returning nodes change
 
-  const SMDS_MeshNode** GetNodes() { return myVolumeNodes; }
+  const SMDS_MeshNode** GetNodes() { return &myVolumeNodes[0]; }
   // Return array of volume nodes
 
-  int NbNodes() { return myVolumeNbNodes; }
+  int NbNodes() { return myVolumeNodes.size(); }
   // Return array of volume nodes
 
   double GetSize() const;
@@ -242,31 +243,42 @@ class SMDS_EXPORT SMDS_VolumeTool
   static int GetOppFaceIndexOfHex( int faceIndex );
   // Return index of the opposite face of the hexahedron
 
-private:
+ private:
 
   bool setFace( int faceIndex ) const;
 
+  bool projectNodesToNormal( int faceIndex, double& minProj, double& maxProj ) const;
+
   const SMDS_MeshElement* myVolume;
   const SMDS_VtkVolume*   myPolyedre;
   bool                    myIgnoreCentralNodes;
 
   bool                    myVolForward;
   int                     myNbFaces;
-  int                     myVolumeNbNodes;
-  const SMDS_MeshNode**   myVolumeNodes;
-  std::vector< int >      myPolyIndices;
+  std::vector<const SMDS_MeshNode*> myVolumeNodes;
+  std::vector< int >      myPolyIndices; // of a myCurFace
+  std::vector< int >      myPolyQuantities;
+  std::vector< int >      myPolyFacetOri; // -1-in, +1-out, 0-undef
 
-  mutable bool                    myExternalFaces;
+  typedef std::pair<int,int> Link;
+  std::map<Link, int>     myFwdLinks; // used in IsFaceExternal() to find out myPolyFacetOri
 
-  mutable const int*              myAllFacesNodeIndices_F;
-  mutable const int*              myAllFacesNodeIndices_RE;
-  mutable const int*              myAllFacesNbNodes;
-  mutable int                     myMaxFaceNbNodes;
+  mutable bool            myExternalFaces;
 
-  mutable int                     myCurFace;
-  mutable int                     myFaceNbNodes;
-  mutable int*                    myFaceNodeIndices;
-  mutable const SMDS_MeshNode**   myFaceNodes;
+  mutable const int*      myAllFacesNodeIndices_F;
+  mutable const int*      myAllFacesNodeIndices_RE;
+  mutable const int*      myAllFacesNbNodes;
+  mutable int             myMaxFaceNbNodes;
+
+  struct SaveFacet;
+  struct Facet
+  {
+    int                   myIndex;
+    int                   myNbNodes;
+    int*                  myNodeIndices;
+    std::vector<const SMDS_MeshNode*> myNodes;
+  };
+  mutable Facet           myCurFace;
 
 };
 #endif

src/SMESH/SMESH_MeshEditor.cxx

@@ -12577,6 +12577,11 @@ int SMESH_MeshEditor::MakeBoundaryMesh(const TIDSortedElemSet& elements,
   TConnectivity tgtNodes;
   ElemFeatures elemKind( missType ), elemToCopy;
 
+  vector<const SMDS_MeshElement*> presentBndElems;
+  vector<TConnectivity>           missingBndElems;
+  vector<int>                     freeFacets;
+  TConnectivity nodes, elemNodes;
+
   SMDS_ElemIteratorPtr eIt;
   if (elements.empty()) eIt = aMesh->elementsIterator(elemType);
   else                  eIt = elemSetIterator( elements );
@@ -12590,18 +12595,24 @@ int SMESH_MeshEditor::MakeBoundaryMesh(const TIDSortedElemSet& elements,
     // ------------------------------------------------------------------------------------
     // 1. For an elem, get present bnd elements and connectivities of missing bnd elements
     // ------------------------------------------------------------------------------------
-    vector<const SMDS_MeshElement*> presentBndElems;
-    vector<TConnectivity>           missingBndElems;
-    TConnectivity nodes, elemNodes;
+    presentBndElems.clear();
+    missingBndElems.clear();
+    freeFacets.clear(); nodes.clear(); elemNodes.clear();
     if ( vTool.Set(elem, /*ignoreCentralNodes=*/true) ) // elem is a volume --------------
     {
-      vTool.SetExternalNormal();
       const SMDS_MeshElement* otherVol = 0;
       for ( int iface = 0, n = vTool.NbFaces(); iface < n; iface++ )
       {
         if ( !vTool.IsFreeFace(iface, &otherVol) &&
              ( !aroundElements || elements.count( otherVol )))
           continue;
+        freeFacets.push_back( iface );
+      }
+      if ( missType == SMDSAbs_Face )
+        vTool.SetExternalNormal();
+      for ( size_t i = 0; i < freeFacets.size(); ++i )
+      {
+        int                iface = freeFacets[i];
         const SMDS_MeshNode** nn = vTool.GetFaceNodes(iface);
         const size_t nbFaceNodes = vTool.NbFaceNodes (iface);
         if ( missType == SMDSAbs_Edge ) // boundary edges

src/SMESH/SMESH_MesherHelper.cxx

@@ -807,6 +807,24 @@ GeomAPI_ProjectPointOnSurf& SMESH_MesherHelper::GetProjector(const TopoDS_Face&
   return *( i_proj->second );
 }
 
+//=======================================================================
+//function : GetSurface
+//purpose  : Return a cached ShapeAnalysis_Surface of a FACE
+//=======================================================================
+
+Handle(ShapeAnalysis_Surface) SMESH_MesherHelper::GetSurface(const TopoDS_Face& F )
+{
+  Handle(Geom_Surface) surface = BRep_Tool::Surface( F );
+  int faceID = GetMeshDS()->ShapeToIndex( F );
+  TID2Surface::iterator i_surf = myFace2Surface.find( faceID );
+  if ( i_surf == myFace2Surface.end() && faceID )
+  {
+    Handle(ShapeAnalysis_Surface) surf( new ShapeAnalysis_Surface( surface ));
+    i_surf = myFace2Surface.insert( make_pair( faceID, surf )).first;
+  }
+  return i_surf->second;
+}
+
 namespace
 {
   gp_XY AverageUV(const gp_XY& uv1, const gp_XY& uv2) { return ( uv1 + uv2 ) / 2.; }
@@ -1581,6 +1599,26 @@ const SMDS_MeshNode* SMESH_MesherHelper::GetMediumNode(const SMDS_MeshNode* n1,
   {
     F = TopoDS::Face(meshDS->IndexToShape( faceID = pos.first ));
     uv[0] = GetNodeUV(F,n1,n2, force3d ? 0 : &uvOK[0]);
+    if ( HasDegeneratedEdges() && !force3d ) // IPAL52850 (degen VERTEX not at singularity)
+    {
+      // project middle point to a surface
+      SMESH_TNodeXYZ p1( n1 ), p2( n2 );
+      gp_Pnt pMid = 0.5 * ( p1 + p2 );
+      Handle(ShapeAnalysis_Surface) projector = GetSurface( F );
+      gp_Pnt2d uvMid;
+      if ( uvOK[0] )
+        uvMid = projector->NextValueOfUV( uv[0], pMid, BRep_Tool::Tolerance( F ));
+      else
+        uvMid = projector->ValueOfUV( pMid, getFaceMaxTol( F ));
+      if ( projector->Gap() * projector->Gap() < ( p1 - p2 ).SquareModulus() / 4 )
+      {
+        gp_Pnt pProj = projector->Value( uvMid );
+        n12  = meshDS->AddNode( pProj.X(), pProj.Y(), pProj.Z() );
+        meshDS->SetNodeOnFace( n12, faceID, uvMid.X(), uvMid.Y() );
+        myTLinkNodeMap.insert( make_pair ( link, n12 ));
+        return n12;
+      }
+    }
     uv[1] = GetNodeUV(F,n2,n1, force3d ? 0 : &uvOK[1]);
   }
   else if ( pos.second == TopAbs_EDGE )

src/SMESH/SMESH_MesherHelper.hxx

@@ -34,6 +34,7 @@
 #include <SMDS_QuadraticEdge.hxx>
 
 #include <Geom_Surface.hxx>
+#include <ShapeAnalysis_Surface.hxx>
 #include <TopoDS_Face.hxx>
 #include <TopoDS_Shape.hxx>
 #include <gp_Pnt2d.hxx>
@@ -528,6 +529,10 @@ public:
   GeomAPI_ProjectPointOnSurf& GetProjector(const TopoDS_Face& F,
                                            TopLoc_Location&   loc,
                                            double             tol=0 ) const; 
+  /*!
+   * \brief Return a cached ShapeAnalysis_Surface of a FACE
+   */
+  Handle(ShapeAnalysis_Surface) GetSurface(const TopoDS_Face& F ); 
 
   /*!
    * \brief Check if shape is a degenerated edge or it's vertex
@@ -731,8 +736,10 @@ public:
 
   std::map< int, double > myFaceMaxTol;
 
+  typedef std::map< int, Handle(ShapeAnalysis_Surface)> TID2Surface;
   typedef std::map< int, GeomAPI_ProjectPointOnSurf* >  TID2ProjectorOnSurf;
   typedef std::map< int, GeomAPI_ProjectPointOnCurve* > TID2ProjectorOnCurve;
+  TID2Surface          myFace2Surface;
   TID2ProjectorOnSurf  myFace2Projector;
   TID2ProjectorOnCurve myEdge2Projector;
 

src/SMESH_SWIG/smeshBuilder.py

@@ -3619,8 +3619,8 @@ class Mesh:
     ## Creates 2D mesh as skin on boundary faces of a 3D mesh
     #  @return TRUE if operation has been completed successfully, FALSE otherwise
     #  @ingroup l2_modif_edit
-    def  Make2DMeshFrom3D(self):
-        return self.editor. Make2DMeshFrom3D()
+    def Make2DMeshFrom3D(self):
+        return self.editor.Make2DMeshFrom3D()
 
     ## Creates missing boundary elements
     #  @param elements - elements whose boundary is to be checked:
@@ -4910,6 +4910,8 @@ class Mesh:
         fun = self._getFunctor( funType )
         if fun:
             if meshPart:
+                if hasattr( meshPart, "SetMesh" ):
+                    meshPart.SetMesh( self.mesh ) # set mesh to filter
                 hist = fun.GetLocalHistogram( 1, False, meshPart )
             else:
                 hist = fun.GetHistogram( 1, False )

src/StdMeshers/StdMeshers_FaceSide.cxx

@@ -410,7 +410,7 @@ const vector<UVPtStruct>& StdMeshers_FaceSide::GetUVPtStruct(bool   isXConst,
       if ( u2node.empty() ) return myPoints;
 
       const SMDS_MeshNode* node;
-      if ( IsClosed() )
+      if ( IsClosed() && !proxySubMesh[0] )
         node = u2node.begin()->second;
       else
       {