From: eap <eap@opencascade.com>
Date: Tue, 30 Jun 2015 12:14:46 +0000 (+0300)
Subject: 23070: [CEA 1502] Create the 2D mesh from the 1D mesh with one mesh face for each... 
X-Git-Tag: V7_7_0a1~30
X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=fe7d1d57677486d8c546226dc2bf573fbfb6679d;p=modules%2Fsmesh.git

23070: [CEA 1502] Create the 2D mesh from the 1D mesh with one mesh face for each geom face
---

diff --git a/doc/salome/gui/SMESH/input/basic_meshing_algos.doc b/doc/salome/gui/SMESH/input/basic_meshing_algos.doc
index 1d2fa7f25..4804800c5 100644
--- a/doc/salome/gui/SMESH/input/basic_meshing_algos.doc
+++ b/doc/salome/gui/SMESH/input/basic_meshing_algos.doc
@@ -60,6 +60,9 @@ There is also a number of more specific algorithms:
 <ul>
 <li>\subpage prism_3d_algo_page "for meshing prismatic 3D shapes"</li>
 <li>\subpage quad_from_ma_algo_page "for meshing faces with sinuous borders"</li>
+<li> <em>Polygon per Face</em> meshing algorithm - generates one mesh
+  face (either a triangle, a quadrangle or a polygon) per a geometrical
+  face using all nodes from the face boundary.</li>
 <li>\subpage projection_algos_page "for meshing by projection of another mesh"</li>
 <li>\subpage import_algos_page "for meshing by importing elements from another mesh"</li>
 <li>\subpage radial_prism_algo_page "for meshing geometrical objects with cavities"</li>
diff --git a/doc/salome/gui/SMESH/input/quad_from_ma_algo.doc b/doc/salome/gui/SMESH/input/quad_from_ma_algo.doc
index 80c3f59aa..89a919ef3 100644
--- a/doc/salome/gui/SMESH/input/quad_from_ma_algo.doc
+++ b/doc/salome/gui/SMESH/input/quad_from_ma_algo.doc
@@ -22,9 +22,9 @@ The Medial Axis is used in two ways:
   Axis.</li>
 <li> If there is no sub-meshes on the sinuous borders, then a part of
   the Medial Axis that can be mapped to both borders is discretized
-  using a hypothesis assigned to the face or its ancestor shapes,
+  using a 1D hypothesis assigned to the face or its ancestor shapes,
   and the division points are mapped from the Medial Axis to the both
-  borders.</li>
+  borders to find positions of nodes.</li>
 </ol>
 
 */
diff --git a/idl/SMESH_BasicHypothesis.idl b/idl/SMESH_BasicHypothesis.idl
index 60f603caa..62e4ed488 100644
--- a/idl/SMESH_BasicHypothesis.idl
+++ b/idl/SMESH_BasicHypothesis.idl
@@ -1097,6 +1097,13 @@ module StdMeshers
   {
   };
 
+  /*!
+   * StdMeshers_PolygonPerFace_2D: interface of "Polygon Per Face" 2D algorithm
+   */
+  interface StdMeshers_PolygonPerFace_2D : SMESH::SMESH_2D_Algo
+  {
+  };
+
   /*!
    * StdMeshers_Hexa_3D: interface of "Hexahedron (i,j,k)" algorithm
    */
diff --git a/resources/CMakeLists.txt b/resources/CMakeLists.txt
index c50ed7efd..421d99888 100755
--- a/resources/CMakeLists.txt
+++ b/resources/CMakeLists.txt
@@ -98,6 +98,7 @@ SET(SMESH_RESOURCES_FILES
   mesh_tetra.png
   mesh_tree_algo_hexa.png
   mesh_tree_algo_mefisto.png
+  mesh_tree_algo_polygon.png
   mesh_tree_algo.png
   mesh_tree_algo_0D.png
   mesh_tree_algo_quad.png
diff --git a/resources/StdMeshers.xml.in b/resources/StdMeshers.xml.in
index 4150b42dc..7eec8b8eb 100644
--- a/resources/StdMeshers.xml.in
+++ b/resources/StdMeshers.xml.in
@@ -324,6 +324,19 @@
       </python-wrap>
     </algorithm>
 
+    <algorithm type     ="PolygonPerFace_2D"
+               label-id ="Polygon per Face"
+               icon-id  ="mesh_algo_polygon.png"
+               opt-hypos="ViscousLayers2D"
+               input    ="EDGE"
+               output   ="POLYGON,QUAD,TRIA"
+               dim      ="2">
+      <python-wrap>
+        <algo>PolygonPerFace_2D=Polygon()</algo>
+        <hypo>ViscousLayers2D=ViscousLayers2D(SetTotalThickness(),SetNumberLayers(),SetStretchFactor(),SetIgnoreEdges())</hypo>
+      </python-wrap>
+    </algorithm>
+
     <algorithm type     ="Hexa_3D"
                label-id ="Hexahedron (i,j,k)"
                icon-id  ="mesh_algo_hexa.png"
diff --git a/resources/mesh_tree_algo_polygon.png b/resources/mesh_tree_algo_polygon.png
new file mode 100644
index 000000000..37705159e
Binary files /dev/null and b/resources/mesh_tree_algo_polygon.png differ
diff --git a/src/SMESH/SMESH_Algo.hxx b/src/SMESH/SMESH_Algo.hxx
index 3462f0a0d..b827cd21e 100644
--- a/src/SMESH/SMESH_Algo.hxx
+++ b/src/SMESH/SMESH_Algo.hxx
@@ -179,10 +179,10 @@ class SMESH_EXPORT SMESH_Algo : public SMESH_Hypothesis
 
   /*!
    * \brief evaluates size of prospective mesh on a shape
-    * \param aMesh - the mesh
-    * \param aShape - the shape
-    * \param aNbElems - prospective number of elements by types
-    * \retval bool - is a success
+   *  \param aMesh - the mesh
+   *  \param aShape - the shape
+   *  \param aResMap - prospective number of elements by SMDSAbs_ElementType by a sub-mesh
+   *  \retval bool - is a success
    */
   virtual bool Evaluate(SMESH_Mesh & aMesh, const TopoDS_Shape & aShape,
                         MapShapeNbElems& aResMap) = 0;
diff --git a/src/SMESH/SMESH_MesherHelper.hxx b/src/SMESH/SMESH_MesherHelper.hxx
index 05173ae06..d85f8329e 100644
--- a/src/SMESH/SMESH_MesherHelper.hxx
+++ b/src/SMESH/SMESH_MesherHelper.hxx
@@ -258,12 +258,9 @@ public:
    * quadratic elements will be created. Also fill myTLinkNodeMap
    */
   bool IsQuadraticSubMesh(const TopoDS_Shape& theShape);
-  /*!
-   * \brief Set order of elements to create without calling IsQuadraticSubMesh()
-   */
 
   /*!
-   * \brief Set myCreateQuadratic flag
+   * \brief Set order of elements to create without calling IsQuadraticSubMesh()
    */
   void SetIsQuadratic(const bool theBuildQuadratic)
   { myCreateQuadratic = theBuildQuadratic; }
diff --git a/src/SMESH/SMESH_subMesh.cxx b/src/SMESH/SMESH_subMesh.cxx
index 8c2702a47..9c1d50acf 100644
--- a/src/SMESH/SMESH_subMesh.cxx
+++ b/src/SMESH/SMESH_subMesh.cxx
@@ -403,13 +403,7 @@ int SMESH_subMesh::computeCost() const
 
 //=============================================================================
 /*!
- * Construct dependence on first level subMeshes. complex shapes (compsolid,
- * shell, wire) are not analysed the same way as simple shapes (solid, face,
- * edge).
- * For collection shapes (compsolid, shell, wire) prepare a list of submeshes
- * with possible multiples occurences. Multiples occurences corresponds to
- * internal frontiers within shapes of the collection and must not be keeped.
- * See FinalizeDependence.
+ * Returns all sub-meshes this one depend on
  */
 //=============================================================================
 
@@ -474,7 +468,7 @@ namespace {
 
 //=============================================================================
 /*!
- * For simple Shapes (solid, face, edge): add subMesh into dependence list.
+ * Add sub-meshes on sub-shapes of a given type into the dependence map.
  */
 //=============================================================================
 
diff --git a/src/SMESHGUI/SMESHGUI_ComputeDlg.cxx b/src/SMESHGUI/SMESHGUI_ComputeDlg.cxx
index e2dd40b88..b774599d4 100644
--- a/src/SMESHGUI/SMESHGUI_ComputeDlg.cxx
+++ b/src/SMESHGUI/SMESHGUI_ComputeDlg.cxx
@@ -23,22 +23,20 @@
 //
 #include "SMESHGUI_ComputeDlg.h"
 
+#include "SMDS_Mesh.hxx"
+#include "SMDS_SetIterator.hxx"
 #include "SMESHGUI.h"
 #include "SMESHGUI_GEOMGenUtils.h"
-#include "SMESHGUI_MeshUtils.h"
-#include "SMESHGUI_VTKUtils.h"
-#include "SMESHGUI_MeshInfosBox.h"
 #include "SMESHGUI_HypothesesUtils.h"
 #include "SMESHGUI_MeshEditPreview.h"
-#include "SMESHGUI_MeshOrderOp.h"
+#include "SMESHGUI_MeshInfosBox.h"
 #include "SMESHGUI_MeshOrderDlg.h"
-
+#include "SMESHGUI_MeshOrderOp.h"
+#include "SMESHGUI_MeshUtils.h"
+#include "SMESHGUI_VTKUtils.h"
 #include "SMESH_Actor.h"
 #include "SMESH_ActorUtils.h"
 
-#include <SMDS_SetIterator.hxx>
-#include <SMDS_Mesh.hxx>
-
 // SALOME GEOM includes
 #include <GEOMBase.h>
 #include <GEOM_Actor.h>
@@ -67,18 +65,17 @@
 #include CORBA_SERVER_HEADER(SMESH_Group)
 
 // OCCT includes
+#include <BRepBndLib.hxx>
+#include <BRepMesh_IncrementalMesh.hxx>
 #include <BRep_Tool.hxx>
+#include <Bnd_Box.hxx>
+#include <Poly_Triangulation.hxx>
 #include <TopExp.hxx>
 #include <TopExp_Explorer.hxx>
+#include <TopLoc_Location.hxx>
 #include <TopTools_IndexedMapOfShape.hxx>
 #include <TopoDS.hxx>
 
-#include <TopLoc_Location.hxx>
-#include <Poly_Triangulation.hxx>
-#include <Bnd_Box.hxx>
-#include <BRepBndLib.hxx>
-#include <BRepMesh_IncrementalMesh.hxx>
-
 #include <Standard_ErrorHandler.hxx>
 
 // Qt includes
diff --git a/src/SMESHGUI/SMESHGUI_Hypotheses.h b/src/SMESHGUI/SMESHGUI_Hypotheses.h
index c431014e7..44997d0e6 100644
--- a/src/SMESHGUI/SMESHGUI_Hypotheses.h
+++ b/src/SMESHGUI/SMESHGUI_Hypotheses.h
@@ -158,20 +158,19 @@ public:
 protected slots:
   virtual void accept();
   virtual void reject();
-  void onHelp(); 
+  void onHelp();
 
-private:
+ private:
   SMESHGUI_GenericHypothesisCreator* myCreator;
   QLabel *myIconLabel, *myTypeLabel;
   QString myHelpFileName;
 };
 
 /*!
- * \brief Class containing information about hypothesis
-*/
-class HypothesisData
+ * \brief Information about a hypothesis
+ */
+struct HypothesisData
 {
-public:
   HypothesisData( const QString&, const QString&, const QString&,
                   const QString&, const QString&, const QString&,
                   const QString&, const QList<int>&, const bool,
diff --git a/src/SMESHGUI/SMESHGUI_MeshInfosBox.cxx b/src/SMESHGUI/SMESHGUI_MeshInfosBox.cxx
index 0a0ad9973..71590dc96 100644
--- a/src/SMESHGUI/SMESHGUI_MeshInfosBox.cxx
+++ b/src/SMESHGUI/SMESHGUI_MeshInfosBox.cxx
@@ -66,7 +66,7 @@ SMESHGUI_MeshInfosBox::SMESHGUI_MeshInfosBox(const bool full, QWidget* theParent
   myNbTrai(0), myNbLinTrai(0), myNbQuadTrai(0), myNbBiQuadTrai(0),
   myNbQuad(0), myNbLinQuad(0), myNbQuadQuad(0), myNbBiQuadQuad(0),
   myNbFace(0), myNbLinFace(0), myNbQuadFace(0), myNbBiQuadFace(0),
-  myNbPolyg(0),
+  myNbPolyg(0), myNbQuadPolyg(0),
   myNbHexa(0), myNbLinHexa(0), myNbQuadHexa(0), myNbBiQuadHexa(0),
   myNbTetra(0),myNbLinTetra(0),myNbQuadTetra(0),
   myNbPyra(0), myNbLinPyra(0), myNbQuadPyra(0),
@@ -219,8 +219,15 @@ SMESHGUI_MeshInfosBox::SMESHGUI_MeshInfosBox(const bool full, QWidget* theParent
     // ... poligones
     lab = new QLabel(COLONIZE(tr("SMESH_MESHINFO_POLYGONES")), this );
     l->addWidget( lab,           row, 0 );
+    // --
     myNbPolyg    = new QLabel( this );
     l->addWidget( myNbPolyg,     row, 1 );
+    // --
+    myNbLinPolyg = new QLabel( this );
+    l->addWidget( myNbLinPolyg,    row, 2 );
+    // --
+    myNbQuadPolyg = new QLabel( this );
+    l->addWidget( myNbQuadPolyg,   row, 3 );
 
     addSeparator(this);          // add separator
 
@@ -432,12 +439,14 @@ void SMESHGUI_MeshInfosBox::SetMeshInfo(const SMESH::long_array& theInfo)
                                                theInfo[SMDSEntity_Quadrangle] +
                                                theInfo[SMDSEntity_Quad_Quadrangle] +
                                                theInfo[SMDSEntity_BiQuad_Quadrangle] +
-                                               theInfo[SMDSEntity_Polygon] ));
+                                               theInfo[SMDSEntity_Polygon] +
+                                               theInfo[SMDSEntity_Quad_Polygon]));
   myNbLinFace    ->setText( QString("%1").arg( theInfo[SMDSEntity_Triangle] +
                                                theInfo[SMDSEntity_Quadrangle] +
                                                theInfo[SMDSEntity_Polygon] ));
   myNbQuadFace   ->setText( QString("%1").arg( theInfo[SMDSEntity_Quad_Triangle] +
-                                               theInfo[SMDSEntity_Quad_Quadrangle] ));
+                                               theInfo[SMDSEntity_Quad_Quadrangle] +
+                                               theInfo[SMDSEntity_Quad_Polygon] ));
   myNbBiQuadFace ->setText( QString("%1").arg( theInfo[SMDSEntity_BiQuad_Triangle] +
                                                theInfo[SMDSEntity_BiQuad_Quadrangle] ));
 
@@ -481,7 +490,10 @@ void SMESHGUI_MeshInfosBox::SetMeshInfo(const SMESH::long_array& theInfo)
     myNbQuadQuad   ->setText( QString("%1").arg( theInfo[SMDSEntity_Quad_Quadrangle] ));
     myNbBiQuadQuad ->setText( QString("%1").arg( theInfo[SMDSEntity_BiQuad_Quadrangle]));
     // poligones
-    myNbPolyg      ->setText( QString("%1").arg( theInfo[SMDSEntity_Polygon] ));
+    myNbPolyg      ->setText( QString("%1").arg( theInfo[SMDSEntity_Polygon] +
+                                                 theInfo[SMDSEntity_Quad_Polygon] ));
+    myNbLinPolyg   ->setText( QString("%1").arg( theInfo[SMDSEntity_Polygon] ));
+    myNbQuadPolyg  ->setText( QString("%1").arg( theInfo[SMDSEntity_Quad_Polygon] ));
 
     // tetras
     myNbTetra      ->setText( QString("%1").arg( theInfo[SMDSEntity_Tetra] +
diff --git a/src/SMESHGUI/SMESHGUI_MeshInfosBox.h b/src/SMESHGUI/SMESHGUI_MeshInfosBox.h
index ffd8e9b85..b1d51256a 100644
--- a/src/SMESHGUI/SMESHGUI_MeshInfosBox.h
+++ b/src/SMESHGUI/SMESHGUI_MeshInfosBox.h
@@ -69,6 +69,8 @@ private:
   QLabel* myNbQuadFace;
   QLabel* myNbBiQuadFace;
   QLabel* myNbPolyg;
+  QLabel* myNbLinPolyg;
+  QLabel* myNbQuadPolyg;
   QLabel* myNbHexa;
   QLabel* myNbLinHexa;
   QLabel* myNbQuadHexa;
diff --git a/src/SMESHUtils/SMESH_MAT2d.cxx b/src/SMESHUtils/SMESH_MAT2d.cxx
index b2c7a912e..f0f4d52a6 100644
--- a/src/SMESHUtils/SMESH_MAT2d.cxx
+++ b/src/SMESHUtils/SMESH_MAT2d.cxx
@@ -459,24 +459,25 @@ namespace
       gp_Pnt p, pPrev;
       if ( !c3d.IsNull() )
         pPrev = c3d->Value( f );
-      for ( int i = 2; i <= discret.NbPoints(); i++ ) // skip the 1st point
-      {
-        double u = discret.Parameter(i);
-        if ( !c3d.IsNull() )
+      if ( discret.NbPoints() > 2 )
+        for ( int i = 2; i <= discret.NbPoints(); i++ ) // skip the 1st point
         {
-          p = c3d->Value( u );
-          int nbDiv = int( p.Distance( pPrev ) / minSegLen / theDiscrCoef );
-          double dU = ( u - points.back()._u ) / nbDiv;
-          for ( int iD = 1; iD < nbDiv; ++iD )
+          double u = discret.Parameter(i);
+          if ( !c3d.IsNull() )
           {
-            double uD = points.back()._u + dU;
-            points.push_back( UVU( c2d->Value( uD ), uD ));
+            p = c3d->Value( u );
+            int nbDiv = int( p.Distance( pPrev ) / minSegLen / theDiscrCoef );
+            double dU = ( u - points.back()._u ) / nbDiv;
+            for ( int iD = 1; iD < nbDiv; ++iD )
+            {
+              double uD = points.back()._u + dU;
+              points.push_back( UVU( c2d->Value( uD ), uD ));
+            }
+            pPrev = p;
           }
-          pPrev = p;
+          points.push_back( UVU( c2d->Value( u ), u ));
+          uvBox.Add( points.back()._uv );
         }
-        points.push_back( UVU( c2d->Value( u ), u ));
-        uvBox.Add( points.back()._uv );
-      }
       // if ( !c3d.IsNull() )
       // {
       //   vector<double> params;
@@ -595,6 +596,45 @@ namespace
     return true;
   }
 
+  //================================================================================
+  /*!
+   * \brief Update a branch joined to another one
+   */
+  //================================================================================
+
+  void updateJoinedBranch( vector< const TVDEdge* > & branchEdges,
+                           const size_t               newID,
+                           vector< BndSeg > &         bndSegs,
+                           const bool                 reverse)
+  {
+    if ( reverse )
+    {
+      for ( size_t i = 0; i < branchEdges.size(); ++i )
+      {
+        size_t seg1 = SMESH_MAT2d::Branch::getBndSegment( branchEdges[i] );
+        size_t seg2 = SMESH_MAT2d::Branch::getBndSegment( branchEdges[i]->twin() );
+        bndSegs[ seg1 ]._branchID /= bndSegs[ seg1 ].branchID();
+        bndSegs[ seg2 ]._branchID /= bndSegs[ seg2 ].branchID();
+        bndSegs[ seg1 ]._branchID *= -newID;
+        bndSegs[ seg2 ]._branchID *= -newID;
+        branchEdges[i] = branchEdges[i]->twin();
+      }
+      std::reverse( branchEdges.begin(), branchEdges.end() );
+    }
+    else
+    {
+      for ( size_t i = 0; i < branchEdges.size(); ++i )
+      {
+        size_t seg1 = SMESH_MAT2d::Branch::getBndSegment( branchEdges[i] );
+        size_t seg2 = SMESH_MAT2d::Branch::getBndSegment( branchEdges[i]->twin() );
+        bndSegs[ seg1 ]._branchID /= bndSegs[ seg1 ].branchID();
+        bndSegs[ seg2 ]._branchID /= bndSegs[ seg2 ].branchID();
+        bndSegs[ seg1 ]._branchID *= newID;
+        bndSegs[ seg2 ]._branchID *= newID;
+      }
+    }
+  }
+
   //================================================================================
   /*!
    * \brief Create MA branches and FACE boundary data
@@ -608,6 +648,7 @@ namespace
   //================================================================================
 
   void makeMA( const TVD&                               vd,
+               const bool                               ignoreCorners,
                vector< InPoint >&                       inPoints,
                vector< InSegment > &                    inSegments,
                vector< SMESH_MAT2d::Branch >&           branch,
@@ -797,7 +838,7 @@ namespace
     size_t i1st = 0;
     while ( i1st < bndSegs.size() && !bndSegs[i1st].hasOppositeEdge( noEdgeID ))
       ++i1st;
-    bndSegs[i1st].setBranch( branchID, bndSegs ); // set to i-th and the opposite bndSeg
+    bndSegs[i1st].setBranch( branchID, bndSegs ); // set to the i-th and the opposite bndSeg
     branchEdges[ branchID ].push_back( bndSegs[i1st]._edge );
 
     for ( size_t i = i1st+1; i < bndSegs.size(); ++i )
@@ -858,17 +899,92 @@ namespace
       br2.clear();
     }
 
+    // remove branches ending at BE_ON_VERTEX
+
+    vector<bool> isBranchRemoved( branchEdges.size(), false );
+
+    if ( ignoreCorners && branchEdges.size() > 2 && !branchEdges[2].empty() )
+    {
+      // find branches to remove
+      map< const TVDVertex*, SMESH_MAT2d::BranchEndType >::iterator v2et;
+      for ( size_t iB = 1; iB < branchEdges.size(); ++iB )
+      {
+        if ( branchEdges[iB].empty() )
+          continue;
+        const TVDVertex* v0 = branchEdges[iB][0]->vertex1();
+        const TVDVertex* v1 = branchEdges[iB].back()->vertex0();
+        v2et = endType.find( v0 );
+        if ( v2et != endType.end() && v2et->second == SMESH_MAT2d::BE_ON_VERTEX )
+          isBranchRemoved[ iB ] = true;
+        v2et = endType.find( v1 );
+        if ( v2et != endType.end() && v2et->second == SMESH_MAT2d::BE_ON_VERTEX )
+          isBranchRemoved[ iB ] = true;
+      }
+      // try to join not removed branches into one
+      for ( size_t iB = 1; iB < branchEdges.size(); ++iB )
+      {
+        if ( branchEdges[iB].empty() || isBranchRemoved[iB] )
+          continue;
+        const TVDVertex* v0 = branchEdges[iB][0]->vertex1();
+        const TVDVertex* v1 = branchEdges[iB].back()->vertex0();
+        v2et = endType.find( v0 );
+        if ( v2et == endType.end() || v2et->second != SMESH_MAT2d::BE_BRANCH_POINT )
+          v0 = 0;
+        v2et = endType.find( v1 );
+        if ( v2et == endType.end() || v2et->second != SMESH_MAT2d::BE_BRANCH_POINT )
+          v1 = 0;
+        if ( !v0 && !v1 )
+          continue;
+
+        size_t iBrToJoin = 0;
+        for ( size_t iB2 = 1; iB2 < branchEdges.size(); ++iB2 )
+        {
+          if ( branchEdges[iB2].empty() || isBranchRemoved[iB2] || iB == iB2 )
+            continue;
+          const TVDVertex* v02 = branchEdges[iB2][0]->vertex1();
+          const TVDVertex* v12 = branchEdges[iB2].back()->vertex0();
+          if ( v0 == v02 || v0 == v12 || v1 == v02 || v1 == v12 )
+          {
+            if ( iBrToJoin > 0 )
+            {
+              iBrToJoin = 0;
+              break; // more than 2 not removed branches meat at a TVDVertex
+            }
+            iBrToJoin = iB2;
+          }
+        }
+        if ( iBrToJoin > 0 )
+        {
+          vector<const TVDEdge*>& branch = branchEdges[ iBrToJoin ];
+          const TVDVertex* v02 = branch[0]->vertex1();
+          const TVDVertex* v12 = branch.back()->vertex0();
+          updateJoinedBranch( branch, iB, bndSegs, /*reverse=*/(v0 == v02 || v1 == v12 ));
+          if ( v0 == v02 || v0 == v12 )
+            branchEdges[iB].insert( branchEdges[iB].begin(), branch.begin(), branch.end() );
+          else
+            branchEdges[iB].insert( branchEdges[iB].end(),   branch.begin(), branch.end() );
+          branch.clear();
+        }
+      } // loop on branchEdges
+    } // if ( ignoreCorners )
+
     // associate branchIDs and the input branch vector (arg)
-    vector< const SMESH_MAT2d::Branch* > branchByID( branchEdges.size(), 0 );
+    vector< SMESH_MAT2d::Branch* > branchByID( branchEdges.size(), 0 );
     int nbBranches = 0;
     for ( size_t i = 0; i < branchEdges.size(); ++i )
     {
       nbBranches += ( !branchEdges[i].empty() );
     }
     branch.resize( nbBranches );
-    for ( size_t iBr = 0, brID = 0; brID < branchEdges.size(); ++brID )
+    size_t iBr = 0;
+    for ( size_t brID = 1; brID < branchEdges.size(); ++brID ) // 1st - not removed
+    {
+      if ( !branchEdges[ brID ].empty() && !isBranchRemoved[ brID ])
+        branchByID[ brID ] = & branch[ iBr++ ];
+    }
+    for ( size_t brID = 1; brID < branchEdges.size(); ++brID ) // then - removed
     {
-      if ( !branchEdges[ brID ].empty() )
+      if ( !branchEdges[ brID ].empty() && isBranchRemoved[ brID ])
         branchByID[ brID ] = & branch[ iBr++ ];
     }
 
@@ -956,17 +1072,38 @@ namespace
 
     } // loop on all bndSegs
 
+    // Initialize branches
 
+    // find a not removed branch
+    size_t iBrNorRemoved = 0;
+    for ( size_t brID = 1; brID < branchEdges.size(); ++brID )
+      if ( !branchEdges[brID].empty() && !isBranchRemoved[brID] )
+      {
+        iBrNorRemoved = brID;
+        break;
+      }
     // fill the branches with MA edges
-    for ( size_t iBr = 0, brID = 0; brID < branchEdges.size(); ++brID )
+    for ( size_t brID = 1; brID < branchEdges.size(); ++brID )
       if ( !branchEdges[brID].empty() )
       {
-        branch[ iBr ].init( branchEdges[brID], & boundary, endType );
-        iBr++;
+        branchByID[ brID ]->init( branchEdges[brID], & boundary, endType );
+      }
+    // mark removed branches
+    for ( size_t brID = 1; brID < branchEdges.size(); ++brID )
+      if ( isBranchRemoved[brID] && iBrNorRemoved > 0 )
+      {
+        SMESH_MAT2d::Branch* branch     = branchByID[ brID ];
+        SMESH_MAT2d::Branch* mainBranch = branchByID[ iBrNorRemoved ];
+        bool is1stBrPnt = ( branch->getEnd(0)->_type == SMESH_MAT2d::BE_BRANCH_POINT );
+        const TVDVertex* branchVextex = 
+          is1stBrPnt ? branch->getEnd(0)->_vertex : branch->getEnd(1)->_vertex;
+        SMESH_MAT2d::BranchPoint bp = mainBranch->getPoint( branchVextex );
+        branch->setRemoved( bp );
       }
     // set branches to branch ends
     for ( size_t i = 0; i < branch.size(); ++i )
-      branch[i].setBranchesToEnds( branch );
+      if ( !branch[i].isRemoved() )
+        branch[i].setBranchesToEnds( branch );
 
     // fill branchPnt arg
     map< const TVDVertex*, const SMESH_MAT2d::BranchEnd* > v2end;
@@ -1009,13 +1146,30 @@ SMESH_MAT2d::MedialAxis::MedialAxis(const TopoDS_Face&                face,
   if ( !makeInputData( face, edges, minSegLen, inPoints, inSegments, _scale ))
     return;
 
-  //inSegmentsToFile( inSegments );
+  inSegmentsToFile( inSegments );
 
   // build voronoi diagram
   construct_voronoi( inSegments.begin(), inSegments.end(), &_vd );
 
   // make MA data
-  makeMA( _vd, inPoints, inSegments, _branch, _branchPnt, _boundary );
+  makeMA( _vd, ignoreCorners, inPoints, inSegments, _branch, _branchPnt, _boundary );
+
+  // count valid branches
+  _nbBranches = _branch.size();
+  for ( size_t i = 0; i < _branch.size(); ++i )
+    if ( _branch[i].isRemoved() )
+      --_nbBranches;
+}
+
+//================================================================================
+/*!
+ * \brief Returns the i-th branch
+ */
+//================================================================================
+
+const SMESH_MAT2d::Branch* SMESH_MAT2d::MedialAxis::getBranch(size_t i) const
+{
+  return i < _nbBranches ? &_branch[i] : 0;
 }
 
 //================================================================================
@@ -1024,10 +1178,10 @@ SMESH_MAT2d::MedialAxis::MedialAxis(const TopoDS_Face&                face,
  */
 //================================================================================
 
-void SMESH_MAT2d::MedialAxis::getPoints( const Branch&         branch,
+void SMESH_MAT2d::MedialAxis::getPoints( const Branch*         branch,
                                          std::vector< gp_XY >& points) const
 {
-  branch.getPoints( points, _scale );
+  branch->getPoints( points, _scale );
 }
 
 //================================================================================
@@ -1070,7 +1224,7 @@ bool SMESH_MAT2d::Boundary::getBranchPoint( const std::size_t iEdge,
 
   double edgeParam = ( u - points._params[i] ) / ( points._params[i+1] - points._params[i] );
 
-  if ( !points._maEdges[ i ].second ) // no branch at the EDGE end
+  if ( !points._maEdges[ i ].second ) // no branch at the EDGE end, look for a closest branch
   {
     if ( i < points._maEdges.size() / 2 ) // near 1st point
     {
@@ -1105,16 +1259,36 @@ bool SMESH_MAT2d::Boundary::getBranchPoint( const std::size_t iEdge,
  */
 //================================================================================
 
-bool SMESH_MAT2d::Boundary::IsConcaveSegment( std::size_t iEdge, std::size_t iSeg ) const
+bool SMESH_MAT2d::Boundary::isConcaveSegment( std::size_t iEdge, std::size_t iSeg ) const
 {
   if ( iEdge >= _pointsPerEdge.size() || _pointsPerEdge[iEdge]._params.empty() )
     return false;
 
   const BndPoints& points = _pointsPerEdge[ iEdge ];
-  if ( points._params.size() >= iSeg+1 )
+  if ( points._params.size() <= iSeg+1 )
     return false;
 
-  return Abs( points._params[ iEdge ] - points._params[ iEdge+1 ]) < 1e-20;
+  return Abs( points._params[ iSeg ] - points._params[ iSeg+1 ]) < 1e-20;
+}
+
+//================================================================================
+/*!
+ * \brief Moves (changes _param) a given BoundaryPoint to a closest EDGE end
+ */
+//================================================================================
+
+bool SMESH_MAT2d::Boundary::moveToClosestEdgeEnd( BoundaryPoint& bp ) const
+{
+  if ( bp._edgeIndex >= _pointsPerEdge.size() )
+    return false;
+
+  const BndPoints& points = _pointsPerEdge[ bp._edgeIndex ];
+  if ( bp._param - points._params[0] < points._params.back() - bp._param )
+    bp._param = points._params[0];
+  else 
+    bp._param = points._params.back();
+
+  return true;
 }
 
 //================================================================================
@@ -1191,7 +1365,7 @@ void SMESH_MAT2d::Branch::init( vector<const TVDEdge*>&                maEdges,
 
 //================================================================================
 /*!
- * \brief fill BranchEnd::_branches of its ends
+ * \brief fills BranchEnd::_branches of its ends
  */
 //================================================================================
 
@@ -1209,6 +1383,47 @@ void SMESH_MAT2d::Branch::setBranchesToEnds( const vector< Branch >& branches )
   }
 }
 
+//================================================================================
+/*!
+ * \brief returns a BranchPoint corresponding to a TVDVertex
+ */
+//================================================================================
+
+SMESH_MAT2d::BranchPoint SMESH_MAT2d::Branch::getPoint( const TVDVertex* vertex ) const
+{
+  BranchPoint p;
+  p._branch = this;
+  p._iEdge  = 0;
+
+  if ( vertex == _maEdges[0]->vertex1() )
+  {
+    p._edgeParam = 0;
+  }
+  else
+  {
+    for ( ; p._iEdge < _maEdges.size(); ++p._iEdge )
+      if ( vertex == _maEdges[ p._iEdge ]->vertex0() )
+      {
+        p._edgeParam = _params[ p._iEdge ];
+        break;
+      }
+  }
+  return p;
+}
+
+//================================================================================
+/*!
+ * \brief Sets a proxy point for a removed branch
+ *  \param [in] proxyPoint - a point of another branch to which all points of this
+ *         branch are mapped
+ */
+//================================================================================
+
+void SMESH_MAT2d::Branch::setRemoved( const BranchPoint& proxyPoint )
+{
+  _proxyPoint = proxyPoint;
+}
+
 //================================================================================
 /*!
  * \brief Returns points on two EDGEs, equidistant from a given point of this Branch
@@ -1225,7 +1440,7 @@ bool SMESH_MAT2d::Branch::getBoundaryPoints(double         param,
 {
   if ( param < _params[0] || param > _params.back() )
     return false;
-  
+
   // look for an index of a MA edge by param
   double ip = param * _params.size();
   size_t  i = size_t( Min( int( _maEdges.size()-1), int( ip )));
@@ -1254,6 +1469,9 @@ bool SMESH_MAT2d::Branch::getBoundaryPoints(std::size_t    iMAEdge,
                                             BoundaryPoint& bp1,
                                             BoundaryPoint& bp2 ) const
 {
+  if ( isRemoved() )
+    return _proxyPoint._branch->getBoundaryPoints( _proxyPoint, bp1, bp2 );
+
   if ( iMAEdge > _maEdges.size() )
     return false;
   if ( iMAEdge == _maEdges.size() )
@@ -1382,8 +1600,8 @@ bool SMESH_MAT2d::Branch::addDivPntForConcaVertex( std::vector< std::size_t >&
 
   size_t iSeg1  = getBndSegment( maEdges[ i-1 ] );
   size_t iSeg2  = getBndSegment( maEdges[ i ] );
-  bool isConcaPrev = _boundary->IsConcaveSegment( edgeIDs1.back(), iSeg1 );
-  bool isConcaNext = _boundary->IsConcaveSegment( ie1,             iSeg2 );
+  bool isConcaPrev = _boundary->isConcaveSegment( edgeIDs1.back(), iSeg1 );
+  bool isConcaNext = _boundary->isConcaveSegment( ie1,             iSeg2 );
   if ( !isConcaNext && !isConcaPrev )
     return false;
 
@@ -1397,7 +1615,7 @@ bool SMESH_MAT2d::Branch::addDivPntForConcaVertex( std::vector< std::size_t >&
     while ( iNext < maEdges.size() )
     {
       iSeg2 = getBndSegment( maEdges[ iNext ] );
-      if ( _boundary->IsConcaveSegment( ie1, iSeg2 ))
+      if ( _boundary->isConcaveSegment( ie1, iSeg2 ))
         ++iNext;
       else
         break;
@@ -1419,7 +1637,7 @@ bool SMESH_MAT2d::Branch::addDivPntForConcaVertex( std::vector< std::size_t >&
     }
     if ( vertexFound )
     {
-      i = --iNext;
+      iPrev = i = --iNext; // not to add a BP in the moddle
       isConcaveV = true;
     }
   }
@@ -1429,7 +1647,7 @@ bool SMESH_MAT2d::Branch::addDivPntForConcaVertex( std::vector< std::size_t >&
     while ( iPrev-1 >= 0 )
     {
       iSeg1 = getBndSegment( maEdges[ iPrev-1 ] );
-      if ( _boundary->IsConcaveSegment( edgeIDs1.back(), iSeg1 ))
+      if ( _boundary->isConcaveSegment( edgeIDs1.back(), iSeg1 ))
         --iPrev;
       else
         break;
@@ -1439,7 +1657,7 @@ bool SMESH_MAT2d::Branch::addDivPntForConcaVertex( std::vector< std::size_t >&
   if ( iPrev < i-1 || iNext > i )
   {
     // no VERTEX on the opposite EDGE, put the Branch Point in the middle
-    double par1 = _params[ iPrev ], par2 = _params[ iNext ];
+    double par1 = _params[ iPrev+1 ], par2 = _params[ iNext ];
     double midPar = 0.5 * ( par1 + par2 );
     divisionPnt._iEdge = iPrev;
     while ( _params[ divisionPnt._iEdge + 1 ] < midPar )
diff --git a/src/SMESHUtils/SMESH_MAT2d.hxx b/src/SMESHUtils/SMESH_MAT2d.hxx
index 2b60605bc..2ba0066c5 100644
--- a/src/SMESHUtils/SMESH_MAT2d.hxx
+++ b/src/SMESHUtils/SMESH_MAT2d.hxx
@@ -88,6 +88,7 @@ namespace SMESH_MAT2d
   /*!
    * \brief Branch is a set of MA edges enclosed between branch points and/or MA ends.
    *        It's main feature is to return two BoundaryPoint's per a point on it.
+   *        Points on a Branch are defined by [0,1] parameter 
    */
   class SMESHUtils_EXPORT Branch
   {
@@ -114,15 +115,20 @@ namespace SMESH_MAT2d
                                std::vector< std::size_t >& edgeIDs2,
                                std::vector< BranchPoint >& divPoints) const;
 
-    // construction
+    bool isRemoved() const { return _proxyPoint._branch; }
+
+  public: // internal: construction
+
     void init( std::vector<const TVDEdge*>&                maEdges,
                const Boundary*                             boundary,
                std::map< const TVDVertex*, BranchEndType > endType);
     void setBranchesToEnds( const std::vector< Branch >&   branches);
+    BranchPoint getPoint( const TVDVertex* vertex ) const;
+    void setRemoved( const BranchPoint& proxyPoint );
 
-    static void setGeomEdge( std::size_t geomIndex, const TVDEdge* maEdge );
-    static std::size_t getGeomEdge( const TVDEdge* maEdge );
-    static void setBndSegment( std::size_t segIndex, const TVDEdge* maEdge );
+    static void        setGeomEdge  ( std::size_t geomIndex, const TVDEdge* maEdge );
+    static std::size_t getGeomEdge  ( const TVDEdge* maEdge );
+    static void        setBndSegment( std::size_t segIndex, const TVDEdge* maEdge );
     static std::size_t getBndSegment( const TVDEdge* maEdge );
 
   private:
@@ -142,6 +148,7 @@ namespace SMESH_MAT2d
     const Boundary*      _boundary; // face boundary
     BranchEnd            _endPoint1;
     BranchEnd            _endPoint2;
+    BranchPoint          _proxyPoint;
   };
 
   //-------------------------------------------------------------------------------------
@@ -173,7 +180,9 @@ namespace SMESH_MAT2d
 
     bool getBranchPoint( const std::size_t iEdge, double u, BranchPoint& p ) const;
 
-    bool IsConcaveSegment( std::size_t iEdge, std::size_t iSeg ) const;
+    bool isConcaveSegment( std::size_t iEdge, std::size_t iSeg ) const;
+
+    bool moveToClosestEdgeEnd( BoundaryPoint& bp ) const;
 
   private:
     std::vector< BndPoints > _pointsPerEdge;
@@ -201,11 +210,12 @@ namespace SMESH_MAT2d
                const std::vector< TopoDS_Edge >& edges,
                const double                      minSegLen,
                const bool                        ignoreCorners = false );
-    const Boundary&                        getBoundary() const { return _boundary; }
-    const std::vector< Branch >&           getBranches() const { return _branch; }
+    std::size_t                            nbBranches() const { return _nbBranches; }
+    const Branch*                          getBranch(size_t i) const;
     const std::vector< const BranchEnd* >& getBranchPoints() const { return _branchPnt; }
+    const Boundary&                        getBoundary() const { return _boundary; }
 
-    void getPoints( const Branch& branch, std::vector< gp_XY >& points) const;
+    void getPoints( const Branch* branch, std::vector< gp_XY >& points) const;
     Adaptor3d_Curve* make3DCurve(const Branch& branch) const;
 
   private:
@@ -214,6 +224,7 @@ namespace SMESH_MAT2d
     TopoDS_Face                     _face;
     TVD                             _vd;
     std::vector< Branch >           _branch;
+    std::size_t                     _nbBranches; // removed branches ignored
     std::vector< const BranchEnd* > _branchPnt;
     Boundary                        _boundary;
     double                          _scale[2];
diff --git a/src/SMESH_SWIG/StdMeshersBuilder.py b/src/SMESH_SWIG/StdMeshersBuilder.py
index 3a07810ad..ce50a39cb 100644
--- a/src/SMESH_SWIG/StdMeshersBuilder.py
+++ b/src/SMESH_SWIG/StdMeshersBuilder.py
@@ -44,6 +44,8 @@ QUADRANGLE  = "Quadrangle_2D"
 RADIAL_QUAD = "RadialQuadrangle_1D2D"
 ## Algorithm type: Quadrangle (Medial Axis Projection) 1D-2D algorithm, see StdMeshersBuilder_QuadMA_1D2D
 QUAD_MA_PROJ = "QuadFromMedialAxis_1D2D"
+## Algorithm type: Polygon Per Face 2D algorithm, see StdMeshersBuilder_PolygonPerFace
+POLYGON     = "PolygonPerFace_2D"
 
 # import items of enums
 for e in StdMeshers.QuadType._items: exec('%s = StdMeshers.%s'%(e,e))
@@ -66,7 +68,7 @@ class StdMeshersBuilder_Segment(Mesh_Algorithm):
     ## type of algorithm used with helper function in smeshBuilder.Mesh class
     #  @internal
     algoType   = REGULAR
-    ## flag pointing either this algorithm should be used by default in dynamic method
+    ## flag pointing whether this algorithm should be used by default in dynamic method
     #  of smeshBuilder.Mesh class
     #  @internal
     isDefault  = True
@@ -424,7 +426,7 @@ class StdMeshersBuilder_CompositeSegment(StdMeshersBuilder_Segment):
     ## type of algorithm used with helper function in smeshBuilder.Mesh class
     #  @internal
     algoType   = COMPOSITE
-    ## flag pointing either this algorithm should be used by default in dynamic method
+    ## flag pointing whether this algorithm should be used by default in dynamic method
     #  of smeshBuilder.Mesh class
     #  @internal
     isDefault  = False
@@ -497,7 +499,7 @@ class StdMeshersBuilder_Triangle_MEFISTO(Mesh_Algorithm):
     ## type of algorithm used with helper function in smeshBuilder.Mesh class
     #  @internal
     algoType   = MEFISTO
-    ## flag pointing either this algorithm should be used by default in dynamic method
+    ## flag pointing whether this algorithm should be used by default in dynamic method
     #  of smeshBuilder.Mesh class
     #  @internal
     isDefault  = True
@@ -551,7 +553,7 @@ class StdMeshersBuilder_Quadrangle(Mesh_Algorithm):
     ## type of algorithm used with helper function in smeshBuilder.Mesh class
     #  @internal
     algoType   = QUADRANGLE
-    ## flag pointing either this algorithm should be used by default in dynamic method
+    ## flag pointing whether this algorithm should be used by default in dynamic method
     #  of smeshBuilder.Mesh class
     #  @internal
     isDefault  = True
@@ -698,7 +700,7 @@ class StdMeshersBuilder_Hexahedron(Mesh_Algorithm):
     ## type of algorithm used with helper function in smeshBuilder.Mesh class
     #  @internal
     algoType   = Hexa
-    ## flag pointing either this algorithm should be used by default in dynamic method
+    ## flag pointing whether this algorithm should be used by default in dynamic method
     #  of smeshBuilder.Mesh class
     #  @internal
     isDefault  = True
@@ -730,7 +732,7 @@ class StdMeshersBuilder_Projection1D(Mesh_Algorithm):
     ## type of algorithm used with helper function in smeshBuilder.Mesh class
     #  @internal
     algoType   = "Projection_1D"
-    ## flag pointing either this algorithm should be used by default in dynamic method
+    ## flag pointing whether this algorithm should be used by default in dynamic method
     #  of smeshBuilder.Mesh class
     #  @internal
     isDefault  = True
@@ -788,7 +790,7 @@ class StdMeshersBuilder_Projection2D(Mesh_Algorithm):
     ## type of algorithm used with helper function in smeshBuilder.Mesh class
     #  @internal
     algoType   = "Projection_2D"
-    ## flag pointing either this algorithm should be used by default in dynamic method
+    ## flag pointing whether this algorithm should be used by default in dynamic method
     #  of smeshBuilder.Mesh class
     #  @internal
     isDefault  = True
@@ -1285,6 +1287,37 @@ class StdMeshersBuilder_QuadMA_1D2D(Mesh_Algorithm):
 
     pass
 
+## Defines a Polygon Per Face 2D algorithm
+# 
+#  It is created by calling smeshBuilder.Mesh.Polygon(geom=0)
+#
+#  @ingroup l2_algos_quad_ma
+class StdMeshersBuilder_PolygonPerFace(Mesh_Algorithm):
+
+    ## name of the dynamic method in smeshBuilder.Mesh class
+    #  @internal
+    meshMethod = "Polygon"
+    ## type of algorithm used with helper function in smeshBuilder.Mesh class
+    #  @internal
+    algoType   = POLYGON
+    ## flag pointing whether this algorithm should be used by default in dynamic method
+    #  of smeshBuilder.Mesh class
+    #  @internal
+    isDefault  = True
+    ## doc string of the method
+    #  @internal
+    docHelper  = "Creates polygon 2D algorithm for faces"
+
+    ## Private constructor.
+    #  @param mesh parent mesh object algorithm is assigned to
+    #  @param geom geometry (shape/sub-shape) algorithm is assigned to;
+    #              if it is @c 0 (default), the algorithm is assigned to the main shape
+    def __init__(self, mesh, geom=0):
+        Mesh_Algorithm.__init__(self)
+        self.Create(mesh, geom, self.algoType)
+        pass
+
+    pass
 
 ## Defines a Use Existing Elements 1D algorithm
 #
@@ -1299,7 +1332,7 @@ class StdMeshersBuilder_UseExistingElements_1D(Mesh_Algorithm):
     ## type of algorithm used with helper function in smeshBuilder.Mesh class
     #  @internal
     algoType   = "Import_1D"
-    ## flag pointing either this algorithm should be used by default in dynamic method
+    ## flag pointing whether this algorithm should be used by default in dynamic method
     #  of smeshBuilder.Mesh class
     #  @internal
     isDefault  = True
@@ -1349,7 +1382,7 @@ class StdMeshersBuilder_UseExistingElements_1D2D(Mesh_Algorithm):
     ## type of algorithm used with helper function in smeshBuilder.Mesh class
     #  @internal
     algoType   = "Import_1D2D"
-    ## flag pointing either this algorithm should be used by default in dynamic method
+    ## flag pointing whether this algorithm should be used by default in dynamic method
     #  of smeshBuilder.Mesh class
     #  @internal
     isDefault  = True
@@ -1397,7 +1430,7 @@ class StdMeshersBuilder_Cartesian_3D(Mesh_Algorithm):
     ## type of algorithm used with helper function in smeshBuilder.Mesh class
     #  @internal
     algoType   = "Cartesian_3D"
-    ## flag pointing either this algorithm should be used by default in dynamic method
+    ## flag pointing whether this algorithm should be used by default in dynamic method
     #  of smeshBuilder.Mesh class
     #  @internal
     isDefault  = True
diff --git a/src/StdMeshers/CMakeLists.txt b/src/StdMeshers/CMakeLists.txt
index 8714c1b4f..05af0db64 100644
--- a/src/StdMeshers/CMakeLists.txt
+++ b/src/StdMeshers/CMakeLists.txt
@@ -131,6 +131,7 @@ SET(StdMeshers_HEADERS
   StdMeshers_CartesianParameters3D.hxx
   StdMeshers_Cartesian_3D.hxx
   StdMeshers_QuadFromMedialAxis_1D2D.hxx
+  StdMeshers_PolygonPerFace_2D.hxx
 )
 
 IF(SALOME_SMESH_ENABLE_MEFISTO)
@@ -195,6 +196,7 @@ SET(StdMeshers_SOURCES
   StdMeshers_Cartesian_3D.cxx
   StdMeshers_Adaptive1D.cxx
   StdMeshers_QuadFromMedialAxis_1D2D.cxx
+  StdMeshers_PolygonPerFace_2D.cxx
 )
 
 IF(SALOME_SMESH_ENABLE_MEFISTO)
diff --git a/src/StdMeshers/StdMeshers_CompositeHexa_3D.cxx b/src/StdMeshers/StdMeshers_CompositeHexa_3D.cxx
index ea94c3b4a..954c96e05 100644
--- a/src/StdMeshers/StdMeshers_CompositeHexa_3D.cxx
+++ b/src/StdMeshers/StdMeshers_CompositeHexa_3D.cxx
@@ -1188,7 +1188,7 @@ bool _QuadFaceGrid::needContinuationAtSide( int                        iSide,
   // check presence of corners at other sides
   nbCorners = mySides.NbCommonVertices( cornerVertices );
 
-  return ( 0 < nbCorners && nbCorners <= 2 ); // if nbCorners == 2 additional check is needed!!!
+  return ( 0 < nbCorners && nbCorners <= 3 ); // if nbCorners == 2 additional check is needed!!!
 }
 
 //================================================================================
diff --git a/src/StdMeshers/StdMeshers_PolygonPerFace_2D.cxx b/src/StdMeshers/StdMeshers_PolygonPerFace_2D.cxx
new file mode 100644
index 000000000..6b4960d0a
--- /dev/null
+++ b/src/StdMeshers/StdMeshers_PolygonPerFace_2D.cxx
@@ -0,0 +1,158 @@
+// Copyright (C) 2007-2015  CEA/DEN, EDF R&D, OPEN CASCADE
+//
+// Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+// File      : StdMeshers_PolygonPerFace_2D.cxx
+// Module    : SMESH
+// Created   : Fri Oct 20 11:37:07 2006
+// Author    : Edward AGAPOV (eap)
+//
+#include "StdMeshers_PolygonPerFace_2D.hxx"
+
+#include "SMESH_Comment.hxx"
+#include "SMESH_Mesh.hxx"
+#include "SMESH_MesherHelper.hxx"
+#include "SMESH_ProxyMesh.hxx"
+#include "SMESH_subMesh.hxx"
+#include "StdMeshers_FaceSide.hxx"
+#include "StdMeshers_ViscousLayers2D.hxx"
+
+#include <TopExp_Explorer.hxx>
+#include <TopoDS_Face.hxx>
+
+#include <vector>
+#include <TopoDS.hxx>
+
+using namespace std;
+
+//=======================================================================
+//function : StdMeshers_PolygonPerFace_2D
+//purpose  : 
+//=======================================================================
+
+StdMeshers_PolygonPerFace_2D::StdMeshers_PolygonPerFace_2D(int        hypId,
+                                                           int        studyId,
+                                                           SMESH_Gen* gen)
+  :SMESH_2D_Algo(hypId, studyId, gen)
+{
+  _name = "PolygonPerFace_2D";
+}
+
+//=======================================================================
+//function : CheckHypothesis
+//purpose  : 
+//=======================================================================
+
+bool StdMeshers_PolygonPerFace_2D::CheckHypothesis(SMESH_Mesh&                          theMesh,
+                                                   const TopoDS_Shape&                  theShape,
+                                                   SMESH_Hypothesis::Hypothesis_Status& theStatus)
+{
+  theStatus = HYP_OK;
+  return true;
+}
+
+//=======================================================================
+//function : Compute
+//purpose  :
+//=======================================================================
+
+bool StdMeshers_PolygonPerFace_2D::Compute(SMESH_Mesh&         theMesh,
+                                           const TopoDS_Shape& theShape)
+{
+  const TopoDS_Face& face = TopoDS::Face( theShape );
+
+  SMESH_MesherHelper helper( theMesh );
+  helper.SetElementsOnShape( true );
+  _quadraticMesh = helper.IsQuadraticSubMesh( face );
+
+  SMESH_ProxyMesh::Ptr proxyMesh = StdMeshers_ViscousLayers2D::Compute( theMesh, face );
+  if ( !proxyMesh )
+    return false;
+
+  TError erorr;
+  TSideVector wires = StdMeshers_FaceSide::GetFaceWires(face, theMesh,
+                                                        /*skipMediumNodes=*/_quadraticMesh,
+                                                        erorr, proxyMesh,
+                                                        /*checkVertexNodes=*/false);
+  if ( wires.size() != 1 )
+    return error( COMPERR_BAD_SHAPE, SMESH_Comment("One wire required, not ") << wires.size() );
+
+  vector<const SMDS_MeshNode*> nodes = wires[0]->GetOrderedNodes();
+  int nbNodes = int( nodes.size() ) - 1; // 1st node is repeated at end
+
+  switch ( nbNodes ) {
+  case 3:
+    helper.AddFace( nodes[0], nodes[1], nodes[2] );
+    break;
+  case 4:
+    helper.AddFace( nodes[0], nodes[1], nodes[2], nodes[3] );
+    break;
+  default:
+    if ( nbNodes < 3 )
+      return error( COMPERR_BAD_INPUT_MESH, "Less that 3 nodes on the wire" );
+    nodes.resize( nodes.size() - 1 );
+    helper.AddPolygonalFace ( nodes );
+  }
+
+  return true;
+}
+
+//=======================================================================
+//function : Evaluate
+//purpose  : 
+//=======================================================================
+
+bool StdMeshers_PolygonPerFace_2D::Evaluate(SMESH_Mesh&         theMesh,
+                                            const TopoDS_Shape& theShape,
+                                            MapShapeNbElems&    theResMap)
+{
+  // count nb segments
+  int nbLinSegs = 0, nbQuadSegs = 0;
+  TopExp_Explorer edge( theShape, TopAbs_EDGE );
+  for ( ; edge.More(); edge.Next() )
+  {
+    SMESH_subMesh* sm = theMesh.GetSubMesh( edge.Current() );
+    MapShapeNbElems::iterator sm2vec = theResMap.find( sm );
+    if ( sm2vec == theResMap.end() )
+      continue;
+    nbLinSegs  += sm2vec->second.at( SMDSEntity_Edge );
+    nbQuadSegs += sm2vec->second.at( SMDSEntity_Quad_Edge );
+  }
+
+  std::vector<int> aVec( SMDSEntity_Last, 0 );
+  switch ( nbLinSegs + nbQuadSegs ) {
+  case 3:
+    aVec[ nbQuadSegs ? SMDSEntity_Quad_Triangle : SMDSEntity_Triangle ] = 1;
+    break;
+  case 4:
+    aVec[ nbQuadSegs ? SMDSEntity_Quad_Quadrangle : SMDSEntity_Quadrangle ] = 1;
+    break;
+  default:
+    if ( nbLinSegs + nbQuadSegs < 3 )
+      return error( COMPERR_BAD_INPUT_MESH, "Less that 3 nodes on the wire" );
+    aVec[ nbQuadSegs ? SMDSEntity_Quad_Polygon : SMDSEntity_Polygon ] = 1;
+  }
+
+  SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
+  theResMap.insert(std::make_pair(sm,aVec));
+
+  return true;
+}
diff --git a/src/StdMeshers/StdMeshers_PolygonPerFace_2D.hxx b/src/StdMeshers/StdMeshers_PolygonPerFace_2D.hxx
new file mode 100644
index 000000000..5a6a60422
--- /dev/null
+++ b/src/StdMeshers/StdMeshers_PolygonPerFace_2D.hxx
@@ -0,0 +1,47 @@
+// Copyright (C) 2007-2015  CEA/DEN, EDF R&D, OPEN CASCADE
+//
+// Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+//  File   : StdMeshers_PolygonPerFace_2D.hxx
+//  Module : SMESH
+//
+#ifndef _SMESH_PolygonPerFace_2D_HXX_
+#define _SMESH_PolygonPerFace_2D_HXX_
+
+#include "SMESH_StdMeshers.hxx"
+#include "SMESH_Algo.hxx"
+
+class STDMESHERS_EXPORT StdMeshers_PolygonPerFace_2D: public SMESH_2D_Algo
+{
+ public:
+  StdMeshers_PolygonPerFace_2D(int hypId, int studyId, SMESH_Gen* gen);
+
+  virtual bool CheckHypothesis(SMESH_Mesh&                          aMesh,
+                               const TopoDS_Shape&                  aShape,
+                               SMESH_Hypothesis::Hypothesis_Status& aStatus);
+
+  virtual bool Compute(SMESH_Mesh& aMesh, const TopoDS_Shape& aShape);
+
+  virtual bool Evaluate(SMESH_Mesh & aMesh, const TopoDS_Shape & aShape,
+                        MapShapeNbElems& aResMap);
+};
+
+#endif
diff --git a/src/StdMeshers/StdMeshers_QuadFromMedialAxis_1D2D.cxx b/src/StdMeshers/StdMeshers_QuadFromMedialAxis_1D2D.cxx
index 4ac71c0b8..8740859d0 100644
--- a/src/StdMeshers/StdMeshers_QuadFromMedialAxis_1D2D.cxx
+++ b/src/StdMeshers/StdMeshers_QuadFromMedialAxis_1D2D.cxx
@@ -70,7 +70,7 @@ public:
   void SetSegmentLength( double len )
   {
     _value[ BEG_LENGTH_IND ] = len;
-    _value[ PRECISION_IND ] = 1e-7;
+    _value[ PRECISION_IND  ] = 1e-7;
     _hypType = LOCAL_LENGTH;
   }
 };
@@ -95,7 +95,7 @@ StdMeshers_QuadFromMedialAxis_1D2D::StdMeshers_QuadFromMedialAxis_1D2D(int
   _neededLowerHyps[ 1 ]    = true;  // suppress warning on hiding a global 1D algo
   _neededLowerHyps[ 2 ]    = true;  // suppress warning on hiding a global 2D algo
   _compatibleHypothesis.clear();
-  //_compatibleHypothesis.push_back("ViscousLayers2D");
+  _compatibleHypothesis.push_back("ViscousLayers2D");
 }
 
 //================================================================================
@@ -120,6 +120,7 @@ bool StdMeshers_QuadFromMedialAxis_1D2D::CheckHypothesis(SMESH_Mesh&         aMe
                                                          const TopoDS_Shape& aShape,
                                                          Hypothesis_Status&  aStatus)
 {
+  aStatus = HYP_OK;
   return true; // does not require hypothesis
 }
 
@@ -593,11 +594,11 @@ namespace
   TopoDS_Edge makeEdgeFromMA( SMESH_MesherHelper&            theHelper,
                               const SMESH_MAT2d::MedialAxis& theMA )
   {
-    if ( theMA.getBranches().size() != 1 )
+    if ( theMA.nbBranches() != 1 )
       return TopoDS_Edge();
 
     vector< gp_XY > uv;
-    theMA.getPoints( theMA.getBranches()[0], uv );
+    theMA.getPoints( theMA.getBranch(0), uv );
     if ( uv.size() < 2 )
       return TopoDS_Edge();
 
@@ -812,6 +813,8 @@ namespace
 
   bool findVertex( NodePoint&                  theNodePnt,
                    const vector<TopoDS_Edge>&  theSinuEdges,
+                   size_t                      theEdgeIndPrev,
+                   size_t                      theEdgeIndNext,
                    SMESHDS_Mesh*               theMeshDS)
   {
     if ( theNodePnt._edgeInd >= theSinuEdges.size() )
@@ -826,6 +829,8 @@ namespace
       V = SMESH_MesherHelper::IthVertex( 0, theSinuEdges[ theNodePnt._edgeInd ], /*CumOri=*/false);
     else if ( Abs( l - theNodePnt._u ) < tol )
       V = SMESH_MesherHelper::IthVertex( 1, theSinuEdges[ theNodePnt._edgeInd ], /*CumOri=*/false);
+    else if ( theEdgeIndPrev != theEdgeIndNext )
+      TopExp::CommonVertex( theSinuEdges[theEdgeIndPrev], theSinuEdges[theEdgeIndNext], V );
 
     if ( !V.IsNull() )
     {
@@ -860,6 +865,8 @@ namespace
                         //const double                                  theMinSegLen,
                         const SMESH_MAT2d::MedialAxis&                theMA,
                         const vector< SMESH_MAT2d::BranchPoint >&     theDivPoints,
+                        const vector< std::size_t > &                 theEdgeIDs1,
+                        const vector< std::size_t > &                 theEdgeIDs2,
                         const vector<TopoDS_Edge>&                    theSinuEdges,
                         const vector< Handle(Geom_Curve) >&           theCurves,
                         const vector< bool >&                         theIsEdgeComputed,
@@ -873,8 +880,23 @@ namespace
 
     double uMA;
     SMESH_MAT2d::BoundaryPoint bp[2];
-    const SMESH_MAT2d::Branch& branch = theMA.getBranches()[0];
-
+    const SMESH_MAT2d::Branch& branch = *theMA.getBranch(0);
+
+    // fill a map holding NodePoint's of ends of theSinuEdges
+    map< double, pair< NodePoint, NodePoint > > extremaNP;
+    map< double, pair< NodePoint, NodePoint > >::iterator u2NP0, u2NP1;
+    if ( !branch.getBoundaryPoints( 0., bp[0], bp[1] ) ||
+         !theMA.getBoundary().moveToClosestEdgeEnd( bp[0] ) ||
+         !theMA.getBoundary().moveToClosestEdgeEnd( bp[1] )) return false;
+    u2NP0 = extremaNP.insert
+      ( make_pair( 0., make_pair( NodePoint( bp[0]), NodePoint( bp[1])))).first;
+    if ( !branch.getBoundaryPoints( 1., bp[0], bp[1] ) ||
+         !theMA.getBoundary().moveToClosestEdgeEnd( bp[0] ) ||
+         !theMA.getBoundary().moveToClosestEdgeEnd( bp[1] )) return false;
+    u2NP1 = extremaNP.insert
+      ( make_pair( 1., make_pair( NodePoint( bp[0]), NodePoint( bp[1])))).first;
+
+    // project theDivPoints
     for ( size_t i = 0; i < theDivPoints.size(); ++i )
     {
       if ( !branch.getParameter( theDivPoints[i], uMA ))
@@ -882,10 +904,14 @@ namespace
       if ( !branch.getBoundaryPoints( theDivPoints[i], bp[0], bp[1] ))
         return false;
 
-      NodePoint  np[2] = { NodePoint( bp[0] ),
-                           NodePoint( bp[1] )};
-      bool isVertex[2] = { findVertex( np[0], theSinuEdges, meshDS ),
-                           findVertex( np[1], theSinuEdges, meshDS )};
+      NodePoint  np[2] = {
+        NodePoint( bp[0] ),
+        NodePoint( bp[1] )
+      };
+      bool isVertex[2] = {
+        findVertex( np[0], theSinuEdges, theEdgeIDs1[i], theEdgeIDs1[i+1], meshDS ),
+        findVertex( np[1], theSinuEdges, theEdgeIDs2[i], theEdgeIDs2[i+1], meshDS )
+      };
 
       map< double, pair< NodePoint, NodePoint > >::iterator u2NP =
         thePointsOnE.insert( make_pair( uMA, make_pair( np[0], np[1]))).first;
@@ -893,8 +919,8 @@ namespace
       if ( !isVertex[0] && !isVertex[1] ) return false; // error
       if ( isVertex[0] && isVertex[1] )
         continue;
-      const size_t iVertex = isVertex[0] ? 0 : 1;
-      const size_t iNode   = 1 - iVertex;
+      const size_t iVert = isVertex[0] ? 0 : 1;
+      const size_t iNode   = 1 - iVert;
 
       bool isOppComputed = theIsEdgeComputed[ np[ iNode ]._edgeInd ];
       if ( !isOppComputed )
@@ -912,6 +938,10 @@ namespace
       bool isShortPrev[2], isShortNext[2];
       map< double, pair< NodePoint, NodePoint > >::iterator u2NPPrev = u2NP, u2NPNext = u2NP;
       --u2NPPrev; ++u2NPNext;
+      bool hasPrev = ( u2NP     != thePointsOnE.begin() );
+      bool hasNext = ( u2NPNext != thePointsOnE.end() );
+      if ( !hasPrev ) u2NPPrev = u2NP0;
+      if ( !hasNext ) u2NPNext = u2NP1;
       for ( int iS = 0; iS < 2; ++iS ) // side with Vertex and side with Nodes
       {
         NodePoint np     = get( u2NP->second,     iS );
@@ -926,6 +956,8 @@ namespace
         isShortPrev[iS] = ( r < rShort );
         isShortNext[iS] = (( 1 - r ) > ( 1 - rShort ));
       }
+      // if ( !hasPrev ) isShortPrev[0] = isShortPrev[1] = false;
+      // if ( !hasNext ) isShortNext[0] = isShortNext[1] = false;
 
       map< double, pair< NodePoint, NodePoint > >::iterator u2NPClose;
 
@@ -933,9 +965,9 @@ namespace
           ( isShortNext[0] && isShortNext[1] ))
       {
         u2NPClose = isShortPrev[0] ? u2NPPrev : u2NPNext;
-        NodePoint& npProj  = get( u2NP->second, iNode );       // NP of VERTEX projection
-        NodePoint npCloseN = get( u2NPClose->second, iNode);   // NP close to npProj
-        NodePoint npCloseV = get( u2NPClose->second, iVertex); // NP close to VERTEX
+        NodePoint& npProj  = get( u2NP->second,      iNode ); // NP of VERTEX projection
+        NodePoint npCloseN = get( u2NPClose->second, iNode ); // NP close to npProj
+        NodePoint npCloseV = get( u2NPClose->second, iVert ); // NP close to VERTEX
         if ( !npCloseV._node )
         {
           npProj = npCloseN;
@@ -947,11 +979,11 @@ namespace
           // can't remove the neighbor projection as it is also from VERTEX, -> option 1)
         }
       }
-      // else option 1) - wide enough -> "duplicate" existing node
+      // else: option 1) - wide enough -> "duplicate" existing node
       {
         u2NPClose = isShortPrev[ iNode ] ? u2NPPrev : u2NPNext;
-        NodePoint& npProj   = get( u2NP->second, iNode );       // NP of VERTEX projection
-        NodePoint& npCloseN = get( u2NPClose->second, iNode );  // NP close to npProj
+        NodePoint& npProj   = get( u2NP->second,      iNode ); // NP of VERTEX projection
+        NodePoint& npCloseN = get( u2NPClose->second, iNode ); // NP close to npProj
         // npProj._edgeInd = npCloseN._edgeInd;
         // npProj._u       = npCloseN._u + 1e-3 * Abs( get( u2NPPrev->second, iNode )._u -
         //                                             get( u2NPNext->second, iNode )._u );
@@ -985,7 +1017,7 @@ namespace
                          vector<double>&            theMAParams,
                          SinuousFace&               theSinuFace)
   {
-    if ( theMA.getBranches().size() != 1 )
+    if ( theMA.nbBranches() != 1 )
       return false;
 
     // normalize theMAParams
@@ -1029,7 +1061,7 @@ namespace
       }
     }
 
-    const SMESH_MAT2d::Branch& branch = theMA.getBranches()[0];
+    const SMESH_MAT2d::Branch& branch = *theMA.getBranch(0);
     SMESH_MAT2d::BoundaryPoint bp[2];
 
     vector< std::size_t > edgeIDs1, edgeIDs2;
@@ -1121,8 +1153,8 @@ namespace
       ++iEdgePair;
     }
 
-    if ( !projectVertices( theHelper, theMA, divPoints, theSinuEdges, curves,
-                           isComputed, pointsOnE, theSinuFace._nodesToMerge ))
+    if ( !projectVertices( theHelper, theMA, divPoints, edgeIDs1, edgeIDs2, theSinuEdges,
+                           curves, isComputed, pointsOnE, theSinuFace._nodesToMerge ))
       return false;
 
     // create nodes
diff --git a/src/StdMeshersGUI/StdMeshers_images.ts b/src/StdMeshersGUI/StdMeshers_images.ts
index e744cf34e..0f56903ef 100644
--- a/src/StdMeshersGUI/StdMeshers_images.ts
+++ b/src/StdMeshersGUI/StdMeshers_images.ts
@@ -123,6 +123,10 @@
             <source>ICON_SMESH_TREE_ALGO_MEFISTO_2D</source>
             <translation>mesh_tree_algo_mefisto.png</translation>
         </message>
+        <message>
+            <source>ICON_SMESH_TREE_ALGO_PolygonPerFace_2D</source>
+            <translation>mesh_tree_algo_polygon.png</translation>
+        </message>
         <message>
             <source>ICON_SMESH_TREE_ALGO_Projection_1D</source>
             <translation>mesh_tree_algo_regular.png</translation>
diff --git a/src/StdMeshers_I/CMakeLists.txt b/src/StdMeshers_I/CMakeLists.txt
index 7e1ab27e8..57b2d058a 100644
--- a/src/StdMeshers_I/CMakeLists.txt
+++ b/src/StdMeshers_I/CMakeLists.txt
@@ -119,6 +119,7 @@ SET(StdMeshersEngine_HEADERS
   StdMeshers_ViscousLayers2D_i.hxx
   StdMeshers_CartesianParameters3D_i.hxx
   StdMeshers_Cartesian_3D_i.hxx
+  StdMeshers_PolygonPerFace_2D_i.hxx
 )
 IF(SALOME_SMESH_ENABLE_MEFISTO)
   SET(StdMeshersEngine_HEADERS ${StdMeshersEngine_HEADERS} StdMeshers_MEFISTO_2D_i.hxx)
@@ -173,6 +174,7 @@ SET(StdMeshersEngine_SOURCES
   StdMeshers_CartesianParameters3D_i.cxx
   StdMeshers_Cartesian_3D_i.cxx
   StdMeshers_Adaptive1D_i.cxx 
+  StdMeshers_PolygonPerFace_2D_i.cxx
 )
 
 IF(SALOME_SMESH_ENABLE_MEFISTO)
diff --git a/src/StdMeshers_I/StdMeshers_PolygonPerFace_2D_i.cxx b/src/StdMeshers_I/StdMeshers_PolygonPerFace_2D_i.cxx
new file mode 100644
index 000000000..d41e34344
--- /dev/null
+++ b/src/StdMeshers_I/StdMeshers_PolygonPerFace_2D_i.cxx
@@ -0,0 +1,61 @@
+// Copyright (C) 2007-2015  CEA/DEN, EDF R&D, OPEN CASCADE
+//
+// Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+//  File   : StdMeshers_PolygonPerFace_2D_i.cxx
+//  Module : SMESH
+//
+
+#include "StdMeshers_PolygonPerFace_2D_i.hxx"
+
+#include "SMESH_Gen.hxx"
+#include "StdMeshers_PolygonPerFace_2D.hxx"
+
+//=============================================================================
+/*!
+ *  Constructor
+ */
+//=============================================================================
+
+StdMeshers_PolygonPerFace_2D_i::StdMeshers_PolygonPerFace_2D_i( PortableServer::POA_ptr thePOA,
+                                                                int                     theStudyId,
+                                                                ::SMESH_Gen*            theGenImpl )
+  : SALOME::GenericObj_i( thePOA ),
+    SMESH_Hypothesis_i( thePOA ),
+    SMESH_Algo_i( thePOA ),
+    SMESH_2D_Algo_i( thePOA )
+{
+  //MESSAGE( "StdMeshers_PolygonPerFace_2D_i::StdMeshers_PolygonPerFace_2D_i" );
+  myBaseImpl = new ::StdMeshers_PolygonPerFace_2D( theGenImpl->GetANewId(),
+                                                   theStudyId,
+                                                   theGenImpl );
+}
+
+//=============================================================================
+/*!
+ *  Destructor
+ */
+//=============================================================================
+
+StdMeshers_PolygonPerFace_2D_i::~StdMeshers_PolygonPerFace_2D_i()
+{
+  //MESSAGE( "StdMeshers_PolygonPerFace_2D_i::~StdMeshers_PolygonPerFace_2D_i" );
+}
diff --git a/src/StdMeshers_I/StdMeshers_PolygonPerFace_2D_i.hxx b/src/StdMeshers_I/StdMeshers_PolygonPerFace_2D_i.hxx
new file mode 100644
index 000000000..37180109c
--- /dev/null
+++ b/src/StdMeshers_I/StdMeshers_PolygonPerFace_2D_i.hxx
@@ -0,0 +1,54 @@
+// Copyright (C) 2007-2015  CEA/DEN, EDF R&D, OPEN CASCADE
+//
+// Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+//  File   : StdMeshers_PolygonPerFace_2D_i.hxx
+//  Module : SMESH
+//
+#ifndef _SMESH_PolygonPerFace_2D_I_HXX_
+#define _SMESH_PolygonPerFace_2D_I_HXX_
+
+#include "SMESH_StdMeshers_I.hxx"
+
+#include <SALOMEconfig.h>
+#include CORBA_SERVER_HEADER(SMESH_BasicHypothesis)
+
+#include "SMESH_2D_Algo_i.hxx"
+
+class SMESH_Gen;
+
+// ======================================================
+// Polygon Per Face 2d algorithm
+// ======================================================
+class STDMESHERS_I_EXPORT StdMeshers_PolygonPerFace_2D_i:
+  public virtual POA_StdMeshers::StdMeshers_PolygonPerFace_2D,
+  public virtual SMESH_2D_Algo_i
+{
+ public:
+  // Constructor
+  StdMeshers_PolygonPerFace_2D_i( PortableServer::POA_ptr thePOA,
+                                  int                     theStudyId,
+                                  ::SMESH_Gen*            theGenImpl );
+  // Destructor
+  virtual ~StdMeshers_PolygonPerFace_2D_i();
+};
+
+#endif
diff --git a/src/StdMeshers_I/StdMeshers_Quadrangle_2D_i.hxx b/src/StdMeshers_I/StdMeshers_Quadrangle_2D_i.hxx
index 145d31e3c..a85b2a5cb 100644
--- a/src/StdMeshers_I/StdMeshers_Quadrangle_2D_i.hxx
+++ b/src/StdMeshers_I/StdMeshers_Quadrangle_2D_i.hxx
@@ -78,9 +78,6 @@ class STDMESHERS_I_EXPORT StdMeshers_QuadFromMedialAxis_1D2D_i:
   // Destructor
   virtual ~StdMeshers_QuadFromMedialAxis_1D2D_i();
 
-  // Get implementation
-  //::StdMeshers_Quadrangle_2D* GetImpl();
-
   // Return true if the algorithm is applicable to a shape
   //static CORBA::Boolean IsApplicable(const TopoDS_Shape &S, CORBA::Boolean toCheckAll);
 };
diff --git a/src/StdMeshers_I/StdMeshers_i.cxx b/src/StdMeshers_I/StdMeshers_i.cxx
index 3e9eb70b7..273ea0217 100644
--- a/src/StdMeshers_I/StdMeshers_i.cxx
+++ b/src/StdMeshers_I/StdMeshers_i.cxx
@@ -31,70 +31,72 @@
 
 #include "utilities.h"
 
-#include "StdMeshers_LocalLength_i.hxx"
-#include "StdMeshers_AutomaticLength_i.hxx"
-#include "StdMeshers_StartEndLength_i.hxx"
+#include "StdMeshers_Adaptive1D_i.hxx"
 #include "StdMeshers_Arithmetic1D_i.hxx"
-#include "StdMeshers_Geometric1D_i.hxx"
-#include "StdMeshers_FixedPoints1D_i.hxx"
-#include "StdMeshers_NumberOfSegments_i.hxx"
+#include "StdMeshers_AutomaticLength_i.hxx"
+#include "StdMeshers_CartesianParameters3D_i.hxx"
+#include "StdMeshers_Cartesian_3D_i.hxx"
+#include "StdMeshers_CompositeSegment_1D_i.hxx"
 #include "StdMeshers_Deflection1D_i.hxx"
-#include "StdMeshers_Adaptive1D_i.hxx"
-#include "StdMeshers_Propagation_i.hxx"
+#include "StdMeshers_FixedPoints1D_i.hxx"
+#include "StdMeshers_Geometric1D_i.hxx"
+#include "StdMeshers_Hexa_3D_i.hxx"
+#include "StdMeshers_ImportSource1D_i.hxx"
+#include "StdMeshers_ImportSource2D_i.hxx"
+#include "StdMeshers_Import_1D2D_i.hxx"
+#include "StdMeshers_Import_1D_i.hxx"
+#include "StdMeshers_LayerDistribution2D_i.hxx"
+#include "StdMeshers_LayerDistribution_i.hxx"
 #include "StdMeshers_LengthFromEdges_i.hxx"
-#include "StdMeshers_QuadranglePreference_i.hxx"
-//#include "StdMeshers_TrianglePreference_i.hxx"
-#include "StdMeshers_QuadraticMesh_i.hxx"
+#include "StdMeshers_LocalLength_i.hxx"
 #include "StdMeshers_MaxElementArea_i.hxx"
 #include "StdMeshers_MaxElementVolume_i.hxx"
+#include "StdMeshers_MaxLength_i.hxx"
 #include "StdMeshers_NotConformAllowed_i.hxx"
-#include "StdMeshers_ProjectionSource3D_i.hxx"
-#include "StdMeshers_ProjectionSource2D_i.hxx"
-#include "StdMeshers_ProjectionSource1D_i.hxx"
-#include "StdMeshers_NumberOfLayers_i.hxx"
-#include "StdMeshers_LayerDistribution_i.hxx"
 #include "StdMeshers_NumberOfLayers2D_i.hxx"
-#include "StdMeshers_LayerDistribution2D_i.hxx"
-#include "StdMeshers_SegmentLengthAroundVertex_i.hxx"
-#include "StdMeshers_MaxLength_i.hxx"
+#include "StdMeshers_NumberOfLayers_i.hxx"
+#include "StdMeshers_NumberOfSegments_i.hxx"
+#include "StdMeshers_PolygonPerFace_2D_i.hxx"
+#include "StdMeshers_Prism_3D_i.hxx"
+#include "StdMeshers_ProjectionSource1D_i.hxx"
+#include "StdMeshers_ProjectionSource2D_i.hxx"
+#include "StdMeshers_ProjectionSource3D_i.hxx"
+#include "StdMeshers_Projection_1D_2D_3D_i.hxx"
+#include "StdMeshers_Propagation_i.hxx"
 #include "StdMeshers_QuadrangleParams_i.hxx"
-#include "StdMeshers_ImportSource1D_i.hxx"
-#include "StdMeshers_ImportSource2D_i.hxx"
-#include "StdMeshers_Cartesian_3D_i.hxx"
-
-#include "StdMeshers_Regular_1D_i.hxx"
-#ifdef ENABLE_MEFISTO
- #include "StdMeshers_MEFISTO_2D_i.hxx"
-#endif
+#include "StdMeshers_QuadranglePreference_i.hxx"
 #include "StdMeshers_Quadrangle_2D_i.hxx"
-#include "StdMeshers_Hexa_3D_i.hxx"
-#include "StdMeshers_Projection_1D_2D_3D_i.hxx"
-#include "StdMeshers_Prism_3D_i.hxx"
+#include "StdMeshers_QuadraticMesh_i.hxx"
+#include "StdMeshers_RadialQuadrangle_1D2D_i.hxx"
+#include "StdMeshers_Regular_1D_i.hxx"
 #include "StdMeshers_SegmentAroundVertex_0D_i.hxx"
-#include "StdMeshers_CompositeSegment_1D_i.hxx"
+#include "StdMeshers_SegmentLengthAroundVertex_i.hxx"
+#include "StdMeshers_StartEndLength_i.hxx"
 #include "StdMeshers_UseExisting_1D2D_i.hxx"
-#include "StdMeshers_RadialQuadrangle_1D2D_i.hxx"
-#include "StdMeshers_Import_1D_i.hxx"
-#include "StdMeshers_Import_1D2D_i.hxx"
-#include "StdMeshers_ViscousLayers_i.hxx"
 #include "StdMeshers_ViscousLayers2D_i.hxx"
-#include "StdMeshers_CartesianParameters3D_i.hxx"
+#include "StdMeshers_ViscousLayers_i.hxx"
+#ifdef ENABLE_MEFISTO
+ #include "StdMeshers_MEFISTO_2D_i.hxx"
+#endif
 
 namespace SMESH {
   class ApplicableToAny
   {
   public:
-    static CORBA::Boolean IsApplicable( const TopoDS_Shape &S, CORBA::Boolean toCheckAll ) {
+    static CORBA::Boolean IsApplicable( const TopoDS_Shape &S, CORBA::Boolean toCheckAll )
+    {
       return true;
     }
   };
 };
-template <class T, class TIsApplicable = SMESH::ApplicableToAny> class StdHypothesisCreator_i:public HypothesisCreator_i<T>
+template <class T, class TIsApplicable = SMESH::ApplicableToAny>
+class StdHypothesisCreator_i : public HypothesisCreator_i< T >
 {
 public:
   // as we have 'module StdMeshers' in SMESH_BasicHypothesis.idl
   virtual std::string GetModuleName() { return "StdMeshers"; }
-  virtual CORBA::Boolean IsApplicable( const TopoDS_Shape & S, CORBA::Boolean toCheckAll ) {
+  virtual CORBA::Boolean IsApplicable( const TopoDS_Shape & S, CORBA::Boolean toCheckAll )
+  {
     return TIsApplicable::IsApplicable( S, toCheckAll );
   }
 };
@@ -248,6 +250,8 @@ STDMESHERS_I_EXPORT
       aCreator = new StdHypothesisCreator_i<StdMeshers_Import_1D2D_i>;
     else if (strcmp(aHypName, "Cartesian_3D") == 0)
       aCreator = new StdHypothesisCreator_i<StdMeshers_Cartesian_3D_i>;
+    else if (strcmp(aHypName, "PolygonPerFace_2D") == 0)
+      aCreator = new StdHypothesisCreator_i<StdMeshers_PolygonPerFace_2D_i>;
     else ;
 
     return aCreator;
diff --git a/src/Tools/padder/spadderpy/gui/plugindialog.py b/src/Tools/padder/spadderpy/gui/plugindialog.py
index 8ed4d5a59..180dfe3cc 100644
--- a/src/Tools/padder/spadderpy/gui/plugindialog.py
+++ b/src/Tools/padder/spadderpy/gui/plugindialog.py
@@ -50,7 +50,7 @@ all_states = run_states+end_states;
 # The SALOME launcher resource is specified by its name as defined in
 # the file CatalogResources.xml (see root directory of the
 # application). We could have a check box in the dialog to specify
-# wether we want a local execution or a remote one.
+# whether we want a local execution or a remote one.
 resource_name = "localhost"
 from salome.smesh.spadder.configreader import ConfigReader