22580: EDF 8049 SMESH: Problems with viscous layer

Overcome the problem of thickness limited by radius of curvature of faces

src/SMESH/SMESH_MesherHelper.hxx

@@ -559,13 +559,20 @@ public:
   { return IsRealSeam( GetMeshDS()->ShapeToIndex( subShape)); }
   /*!
    * \brief Check if the shape set through IsQuadraticSubMesh() or SetSubShape()
-   *        has a seam edge
-    * \retval bool - true if it has
+   *        has a seam edge, i.e. an edge that has two parametric representations
+   *        on a surface
+   *  \retval bool - true if it has
    */
   bool HasSeam() const { return !mySeamShapeIds.empty(); }
+  /*!
+   * \brief Check if the shape set through IsQuadraticSubMesh() or SetSubShape()
+   *        has a seam edge that encounters twice in a wire
+   *  \retval bool - true if it has
+   */
+  bool HasRealSeam() const { return HasSeam() && ( *mySeamShapeIds.begin() < 0 ); }
   /*!
    * \brief Return index of periodic parametric direction of a closed face
-    * \retval int - 1 for U, 2 for V direction
+   *  \retval int - 1 for U, 2 for V direction
    */
   int GetPeriodicIndex() const { return myParIndex; }
   /*!

src/SMESH/SMESH_subMesh.cxx

@@ -1553,7 +1553,7 @@ bool SMESH_subMesh::ComputeStateEngine(int event)
             if ( !algo->NeedDiscreteBoundary() && !subFailed )
               _computeError =
                 SMESH_ComputeError::New(COMPERR_BAD_INPUT_MESH,
-                                        "Unexpected computed submesh",algo);
+                                        "Unexpected computed sub-mesh",algo);
             break; // goto exit
           }
         }
@@ -1587,8 +1587,8 @@ bool SMESH_subMesh::ComputeStateEngine(int event)
           {
             ret = algo->Compute((*_father), shape);
           }
-          if ( !_computeError || (/* !ret && */_computeError->IsOK() ) ) // algo can set _computeError of submesh
-            _computeError = algo->GetComputeError();
+          // algo can set _computeError of submesh
+          _computeError = SMESH_ComputeError::Worst( _computeError, algo->GetComputeError() );
         }
         catch ( ::SMESH_ComputeError& comperr ) {
           cout << " SMESH_ComputeError caught" << endl;

src/SMESHUtils/SMESH_ComputeError.hxx

@@ -17,7 +17,7 @@
 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
 //
 
-//  File   : SMESH_Hypothesis.hxx
+//  File   : SMESH_ComputeError.hxx
 //  Author : Edward AGAPOV (eap)
 //  Module : SMESH
 //
@@ -89,32 +89,15 @@ struct SMESH_ComputeError
   bool IsKO()        const { return myName != COMPERR_OK && myName != COMPERR_WARNING; }
   bool IsCommon()    const { return myName < 0 && myName > COMPERR_LAST_ALGO_ERROR; }
   bool HasBadElems() const { return !myBadElements.empty(); }
-  inline std::string CommonName() const;
 
+  // not inline methods are implemented in   src/SMESHUtils/SMESH_TryCatch.cxx
+
+  // Return myName as text, to be used to dump errors in terminal
+  std::string CommonName() const;
+
+  // Return the most severe error
+  static SMESH_ComputeErrorPtr Worst( SMESH_ComputeErrorPtr er1,
+                                      SMESH_ComputeErrorPtr er2 );
 };
 
-#define _case2char(err) case err: return #err;
-
-// Return myName as text, to be used to dump errors in terminal
-std::string SMESH_ComputeError::CommonName() const
-{
-  switch( myName ) {
-  _case2char(COMPERR_OK              );
-  _case2char(COMPERR_BAD_INPUT_MESH  );
-  _case2char(COMPERR_STD_EXCEPTION   );
-  _case2char(COMPERR_OCC_EXCEPTION   );
-  _case2char(COMPERR_SLM_EXCEPTION   );
-  _case2char(COMPERR_EXCEPTION       );
-  _case2char(COMPERR_MEMORY_PB       );
-  _case2char(COMPERR_ALGO_FAILED     );
-  _case2char(COMPERR_BAD_SHAPE       );
-  _case2char(COMPERR_WARNING         );
-  _case2char(COMPERR_CANCELED        );
-  _case2char(COMPERR_NO_MESH_ON_SHAPE);
-  _case2char(COMPERR_BAD_PARMETERS   );
-  default:;
-  }
-  return "";
-}
-
 #endif

src/SMESHUtils/SMESH_TryCatch.cxx

@@ -20,6 +20,7 @@
 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
 //
 
+// ------------------------------------------------------------------
 #include "SMESH_TryCatch.hxx"
 
 void SMESH::throwSalomeEx(const char* txt)
@@ -31,4 +32,51 @@ void SMESH::doNothing(const char* txt)
 {
   MESSAGE( txt << " " << __FILE__ << ": " << __LINE__ );
 }
+// ------------------------------------------------------------------
+#include "SMESH_ComputeError.hxx"
 
+#define _case2char(err) case err: return #err;
+
+// Return SMESH_ComputeError::myName as text, to be used to dump errors in terminal
+std::string SMESH_ComputeError::CommonName() const
+{
+  switch( myName ) {
+  _case2char(COMPERR_OK              );
+  _case2char(COMPERR_BAD_INPUT_MESH  );
+  _case2char(COMPERR_STD_EXCEPTION   );
+  _case2char(COMPERR_OCC_EXCEPTION   );
+  _case2char(COMPERR_SLM_EXCEPTION   );
+  _case2char(COMPERR_EXCEPTION       );
+  _case2char(COMPERR_MEMORY_PB       );
+  _case2char(COMPERR_ALGO_FAILED     );
+  _case2char(COMPERR_BAD_SHAPE       );
+  _case2char(COMPERR_WARNING         );
+  _case2char(COMPERR_CANCELED        );
+  _case2char(COMPERR_NO_MESH_ON_SHAPE);
+  _case2char(COMPERR_BAD_PARMETERS   );
+  default:;
+  }
+  return "";
+}
+
+// Return the most severe error
+SMESH_ComputeErrorPtr SMESH_ComputeError::Worst( SMESH_ComputeErrorPtr er1,
+                                                 SMESH_ComputeErrorPtr er2 )
+{
+  if ( !er1 ) return er2;
+  if ( !er2 ) return er1;
+  // both not NULL
+  if ( er1->IsOK() ) return er2;
+  if ( er2->IsOK() ) return er1;
+  // both not OK
+  if ( !er1->IsKO() ) return er2;
+  if ( !er2->IsKO() ) return er1;
+  // both KO
+  bool hasInfo1 = er1->myComment.size() || !er1->myBadElements.empty();
+  bool hasInfo2 = er2->myComment.size() || !er2->myBadElements.empty();
+  if ( er1->myName == er2->myName ||
+       hasInfo1    != hasInfo2 )
+    return hasInfo1 < hasInfo2 ? er2 : er1;
+
+  return er1->myName == COMPERR_CANCELED ? er2 : er1;
+}