0019923: EDF 765 SMESH : default values of hypothesis

+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize(double elemLenght, const SMESH_Mesh* theMesh=0)=0;

src/SMESH/SMESH_Algo.cxx

@@ -286,12 +286,7 @@ bool SMESH_Algo::IsReversedSubMesh (const TopoDS_Face&  theFace,
 
 //================================================================================
 /*!
- * \brief Initialize my parameter values by the mesh built on the geometry
- * \param theMesh - the built mesh
- * \param theShape - the geometry of interest
- * \retval bool - true if parameter values have been successfully defined
- *
- * Just return false as the algorithm does not hold parameters values
+ * \brief Just return false as the algorithm does not hold parameters values
  */
 //================================================================================
 
@@ -300,7 +295,10 @@ bool SMESH_Algo::SetParametersByMesh(const SMESH_Mesh* /*theMesh*/,
 {
   return false;
 }
-
+bool SMESH_Algo::SetParametersByElementSize(double, const SMESH_Mesh*)
+{
+  return false;
+}
 //================================================================================
 /*!
  * \brief Fill vector of node parameters on geometrical edge, including vertex nodes

src/SMESH/SMESH_Algo.hxx

@@ -164,12 +164,10 @@ public:
   bool InitCompatibleHypoFilter( SMESH_HypoFilter & theFilter,
                                  const bool         ignoreAuxiliary) const;
   /*!
-   * \brief Initialize my parameter values by the mesh built on the geometry
-   *
-   * Just return false as the algorithm does not hold parameters values
+   * \brief Just return false as the algorithm does not hold parameters values
    */
-  virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh,
-                                   const TopoDS_Shape& theShape);
+  virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
+  virtual bool SetParametersByElementSize(double elemLenght, const SMESH_Mesh* theMesh=0);
   /*!
    * \brief return compute error
    */

src/SMESH/SMESH_Hypothesis.hxx

@@ -86,6 +86,12 @@ public:
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape)=0;
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize(double elemLenght, const SMESH_Mesh* theMesh=0)=0;
+
   /*!
    * \brief Return true if me is an auxiliary hypothesis
     * \retval bool - auxiliary or not

src/StdMeshers/StdMeshers_Arithmetic1D.cxx

@@ -197,3 +197,17 @@ bool StdMeshers_Arithmetic1D::SetParametersByMesh(const SMESH_Mesh*   theMesh,
   }
   return nbEdges;
 }
+
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_Arithmetic1D::SetParametersByElementSize(double            elemLenght,
+                                                         const SMESH_Mesh* /*mesh*/)
+{
+  return bool( _begLength = _endLength = elemLenght );
+}
+

src/StdMeshers/StdMeshers_Arithmetic1D.hxx

@@ -58,6 +58,12 @@ public:
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
 protected:
   double _begLength, _endLength;
 };

src/StdMeshers/StdMeshers_AutomaticLength.cxx

@@ -368,3 +368,37 @@ bool StdMeshers_AutomaticLength::SetParametersByMesh(const SMESH_Mesh*   theMesh
 
   return nbEdges;
 }
+
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_AutomaticLength::SetParametersByElementSize(double            elemLenght,
+                                                            const SMESH_Mesh* theMesh)
+{
+  return false;
+
+  // assure the base automatic length is stored in _TShapeToLength
+//   GetLength( theMesh, elemLenght );
+
+//   // find maximal edge length
+//   double maxLen = 0;
+//   map<const TopoDS_TShape*, double>::iterator
+//     tshape_length = _TShapeToLength.begin(), slEnd = _TShapeToLength.end();
+//   for ( ; tshape_length != slEnd; ++tshape_length )
+//     if ( tshape_length->second > maxLen )
+//       maxLen = tshape_length->second;
+
+//   // automatic length for longest element
+//   double autoLen = GetLength( theMesh, maxLen );
+
+//   // elemLenght = autoLen / (theCoarseConst + theFineConst * _fineness) -->
+//   _fineness = ( autoLen / elemLenght - theCoarseConst ) / theFineConst;
+
+//   return true;
+}
+
+

src/StdMeshers/StdMeshers_AutomaticLength.hxx

@@ -97,6 +97,12 @@ public:
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
 protected:
   std::map<const TopoDS_TShape*, double> _TShapeToLength;
   const SMESH_Mesh* _mesh;

src/StdMeshers/StdMeshers_Deflection1D.cxx

@@ -222,3 +222,16 @@ bool StdMeshers_Deflection1D::SetParametersByMesh(const SMESH_Mesh*   theMesh,
   }
   return nbEdges;
 }
+
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_Deflection1D::SetParametersByElementSize(double            /*elemLenght*/,
+                                                         const SMESH_Mesh* /*theMesh*/)
+{
+  return false;
+}

src/StdMeshers/StdMeshers_Deflection1D.hxx

@@ -56,6 +56,12 @@ class STDMESHERS_EXPORT StdMeshers_Deflection1D:public SMESH_Hypothesis
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
 protected:
   double _value;
 };

src/StdMeshers/StdMeshers_LayerDistribution.cxx

@@ -146,3 +146,15 @@ bool StdMeshers_LayerDistribution::SetParametersByMesh(const SMESH_Mesh*   ,
 {
   return false;
 }
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_LayerDistribution::SetParametersByElementSize(double            elemLenght,
+                                                              const SMESH_Mesh* theMesh)
+{
+  return myHyp ? myHyp->SetParametersByElementSize(elemLenght,theMesh) : false;
+}

src/StdMeshers/StdMeshers_LayerDistribution.hxx

@@ -84,6 +84,12 @@ public:
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
 protected:
   SMESH_Hypothesis* myHyp;
   std::string       mySavedHyp;

src/StdMeshers/StdMeshers_LengthFromEdges.cxx

@@ -153,3 +153,15 @@ bool StdMeshers_LengthFromEdges::SetParametersByMesh(const SMESH_Mesh* /*theMesh
 {
   return false;
 }
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_LengthFromEdges::SetParametersByElementSize(double            /*elemLenght*/,
+                                                            const SMESH_Mesh* /*theMesh*/)
+{
+  return true;
+}

src/StdMeshers/StdMeshers_LengthFromEdges.hxx

@@ -62,6 +62,12 @@ public:
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
 protected:
   int _mode;
 };

src/StdMeshers/StdMeshers_LocalLength.cxx

@@ -235,3 +235,16 @@ bool StdMeshers_LocalLength::SetParametersByMesh(const SMESH_Mesh*   theMesh,
 
   return nbEdges;
 }
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_LocalLength::SetParametersByElementSize(double            elemLenght,
+                                                        const SMESH_Mesh* /*theMesh*/)
+{
+  return bool( _length = elemLenght );
+}
+

src/StdMeshers/StdMeshers_LocalLength.hxx

@@ -60,6 +60,12 @@ class STDMESHERS_EXPORT StdMeshers_LocalLength: public SMESH_Hypothesis
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
  protected:
   double _length;
   double _precision;

src/StdMeshers/StdMeshers_MaxElementArea.cxx

@@ -186,3 +186,16 @@ bool StdMeshers_MaxElementArea::SetParametersByMesh(const SMESH_Mesh*   theMesh,
   }
   return _maxArea > 0;
 }
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_MaxElementArea::SetParametersByElementSize(double            elemLenght,
+                                                           const SMESH_Mesh* /*theMesh*/)
+{
+  return bool( _maxArea = elemLenght*elemLenght );
+}
+

src/StdMeshers/StdMeshers_MaxElementArea.hxx

@@ -58,6 +58,12 @@ public:
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
 protected:
   double _maxArea;
 };

src/StdMeshers/StdMeshers_MaxElementVolume.cxx

@@ -198,3 +198,16 @@ bool StdMeshers_MaxElementVolume::SetParametersByMesh(const SMESH_Mesh*   theMes
   }
   return _maxVolume > 0;
 }
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_MaxElementVolume::SetParametersByElementSize(double            elemLenght,
+                                                             const SMESH_Mesh* /*theMesh*/)
+{
+  return bool( _maxVolume = elemLenght*elemLenght*elemLenght );
+}
+

src/StdMeshers/StdMeshers_MaxElementVolume.hxx

@@ -60,6 +60,12 @@ public:
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
 protected:
   double _maxVolume;
 };

src/StdMeshers/StdMeshers_NotConformAllowed.cxx

@@ -111,5 +111,18 @@ istream & operator >> (istream & load, StdMeshers_NotConformAllowed & hyp)
 bool StdMeshers_NotConformAllowed::SetParametersByMesh(const SMESH_Mesh* /*theMesh*/,
                                                        const TopoDS_Shape& /*theShape*/)
 {
-  return false;
+  return true;
 }
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_NotConformAllowed::SetParametersByElementSize(double            /*elemLenght*/,
+                                                              const SMESH_Mesh* /*theMesh*/)
+{
+  return true;
+}
+

src/StdMeshers/StdMeshers_NotConformAllowed.hxx

@@ -56,6 +56,12 @@ public:
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
 };
 
 #endif

src/StdMeshers/StdMeshers_NumberOfLayers.cxx

@@ -29,6 +29,7 @@
 #include "StdMeshers_NumberOfLayers.hxx"
 
 
+#include "SMESH_Mesh.hxx"
 #include "utilities.h"
 
 using namespace std;
@@ -160,3 +161,17 @@ bool StdMeshers_NumberOfLayers::SetParametersByMesh(const SMESH_Mesh*   ,
 {
   return false;
 }
+
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_NumberOfLayers::SetParametersByElementSize(double            elemLenght,
+                                                           const SMESH_Mesh* theMesh)
+{
+  return bool( theMesh ? _nbLayers = int( theMesh->GetShapeDiagonalSize() / elemLenght/ 2.) : 0);
+}
+

src/StdMeshers/StdMeshers_NumberOfLayers.hxx

@@ -75,6 +75,12 @@ public:
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
 protected:
   int _nbLayers;
 };

src/StdMeshers/StdMeshers_NumberOfSegments.cxx

@@ -65,7 +65,7 @@ StdMeshers_NumberOfSegments::StdMeshers_NumberOfSegments(int         hypId,
                                                          int         studyId,
                                                          SMESH_Gen * gen)
   : SMESH_Hypothesis(hypId, studyId, gen),
-    _numberOfSegments(1),
+    _numberOfSegments(15),//issue 19923
     _distrType(DT_Regular),
     _scaleFactor(1.),
     _convMode(1)  //cut negative by default
@@ -684,3 +684,16 @@ bool StdMeshers_NumberOfSegments::SetParametersByMesh(const SMESH_Mesh*   theMes
 
   return nbEdges;
 }
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_NumberOfSegments::SetParametersByElementSize(double            elemLenght,
+                                                             const SMESH_Mesh* /*theMesh*/)
+{
+  return false;
+}
+

src/StdMeshers/StdMeshers_NumberOfSegments.hxx

@@ -172,6 +172,12 @@ public:
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
   virtual std::ostream & SaveTo(std::ostream & save);
   virtual std::istream & LoadFrom(std::istream & load);
   friend std::ostream& operator << (std::ostream & save, StdMeshers_NumberOfSegments & hyp);

src/StdMeshers/StdMeshers_ProjectionSource1D.cxx

@@ -230,3 +230,16 @@ void StdMeshers_ProjectionSource1D::RestoreParams(const TopoDS_Shape& s1,
   _sourceMesh   = mesh;
 }
 
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_ProjectionSource1D::SetParametersByElementSize(double            /*elemLenght*/,
+                                                               const SMESH_Mesh* /*theMesh*/)
+{
+  return false;
+}
+

src/StdMeshers/StdMeshers_ProjectionSource1D.hxx

@@ -138,6 +138,12 @@ public:
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
 protected:
 
   TopoDS_Shape  _sourceEdge;

src/StdMeshers/StdMeshers_ProjectionSource2D.cxx

@@ -298,3 +298,17 @@ void StdMeshers_ProjectionSource2D::RestoreParams(const TopoDS_Shape& s1,
   _targetVertex2 = TopoDS::Vertex( s5 );
   _sourceMesh   = mesh;
 }
+
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_ProjectionSource2D::SetParametersByElementSize(double            /*elemLenght*/,
+                                                               const SMESH_Mesh* /*theMesh*/)
+{
+  return false;
+}
+

src/StdMeshers/StdMeshers_ProjectionSource2D.hxx

@@ -148,6 +148,12 @@ public:
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
 protected:
 
   TopoDS_Shape  _sourceFace;

src/StdMeshers/StdMeshers_ProjectionSource3D.cxx

@@ -297,3 +297,17 @@ void StdMeshers_ProjectionSource3D::RestoreParams(const TopoDS_Shape& s1,
   _targetVertex2 = TopoDS::Vertex( s5 );
   _sourceMesh   = mesh;
 }
+
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_ProjectionSource3D::SetParametersByElementSize(double            /*elemLenght*/,
+                                                               const SMESH_Mesh* /*theMesh*/)
+{
+  return false;
+}
+

src/StdMeshers/StdMeshers_ProjectionSource3D.hxx

@@ -140,6 +140,12 @@ public:
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
 protected:
 
   TopoDS_Shape  _sourceShape;

src/StdMeshers/StdMeshers_Propagation.cxx

@@ -97,6 +97,7 @@ ostream & operator << (ostream & save, StdMeshers_Propagation & hyp)   { return
 istream & operator >> (istream & load, StdMeshers_Propagation & hyp)   { return hyp.LoadFrom(load); }
 bool StdMeshers_Propagation::SetParametersByMesh(const SMESH_Mesh*,
                                                  const TopoDS_Shape& ) { return false; }
+bool StdMeshers_Propagation::SetParametersByElementSize(double,const SMESH_Mesh*) { return false; }
 void StdMeshers_Propagation::SetPropagationMgr(SMESH_subMesh* subMesh) { PropagationMgr::Set( subMesh ); }
 /*!
  * \brief Return an edge from which hypotheses are propagated from

src/StdMeshers/StdMeshers_Propagation.hxx

@@ -80,5 +80,12 @@ class STDMESHERS_EXPORT StdMeshers_Propagation:public SMESH_Hypothesis
     * Just return false as this hypothesis does not have parameters values
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
+
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
 };
 #endif

src/StdMeshers/StdMeshers_QuadranglePreference.cxx

@@ -114,3 +114,17 @@ bool StdMeshers_QuadranglePreference::SetParametersByMesh(const SMESH_Mesh* /*th
 {
   return false;
 }
+
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_QuadranglePreference::SetParametersByElementSize(double            /*elemLenght*/,
+                                                                 const SMESH_Mesh* /*theMesh*/)
+{
+  return false;
+}
+

src/StdMeshers/StdMeshers_QuadranglePreference.hxx

@@ -60,6 +60,12 @@ class STDMESHERS_EXPORT StdMeshers_QuadranglePreference:public SMESH_Hypothesis
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
 };
 
 #endif

src/StdMeshers/StdMeshers_QuadraticMesh.cxx

@@ -109,3 +109,17 @@ bool StdMeshers_QuadraticMesh::SetParametersByMesh(const SMESH_Mesh*, const Topo
 {
   return false;
 }
+
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_QuadraticMesh::SetParametersByElementSize(double            /*elemLenght*/,
+                                                          const SMESH_Mesh* /*theMesh*/)
+{
+  return false;
+}
+

src/StdMeshers/StdMeshers_QuadraticMesh.hxx

@@ -62,6 +62,12 @@ class STDMESHERS_EXPORT StdMeshers_QuadraticMesh:public SMESH_Hypothesis
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
 };
 
 #endif

src/StdMeshers/StdMeshers_Regular_1D.cxx

@@ -30,14 +30,15 @@
 #include "StdMeshers_Regular_1D.hxx"
 #include "StdMeshers_Distribution.hxx"
 
-#include "StdMeshers_LocalLength.hxx"
-#include "StdMeshers_NumberOfSegments.hxx"
 #include "StdMeshers_Arithmetic1D.hxx"
-#include "StdMeshers_StartEndLength.hxx"
-#include "StdMeshers_Deflection1D.hxx"
 #include "StdMeshers_AutomaticLength.hxx"
-#include "StdMeshers_SegmentLengthAroundVertex.hxx"
+#include "StdMeshers_Deflection1D.hxx"
+#include "StdMeshers_LocalLength.hxx"
+#include "StdMeshers_MaxLength.hxx"
+#include "StdMeshers_NumberOfSegments.hxx"
 #include "StdMeshers_Propagation.hxx"
+#include "StdMeshers_SegmentLengthAroundVertex.hxx"
+#include "StdMeshers_StartEndLength.hxx"
 
 #include "SMESH_Gen.hxx"
 #include "SMESH_Mesh.hxx"
@@ -81,6 +82,7 @@ StdMeshers_Regular_1D::StdMeshers_Regular_1D(int hypId, int studyId,
 	_shapeType = (1 << TopAbs_EDGE);
 
 	_compatibleHypothesis.push_back("LocalLength");
+	_compatibleHypothesis.push_back("MaxLength");
 	_compatibleHypothesis.push_back("NumberOfSegments");
 	_compatibleHypothesis.push_back("StartEndLength");
 	_compatibleHypothesis.push_back("Deflection1D");
@@ -146,14 +148,28 @@ bool StdMeshers_Regular_1D::CheckHypothesis
     const StdMeshers_LocalLength * hyp =
       dynamic_cast <const StdMeshers_LocalLength * >(theHyp);
     ASSERT(hyp);
-    //_value[ BEG_LENGTH_IND ] = _value[ END_LENGTH_IND ] = hyp->GetLength();
     _value[ BEG_LENGTH_IND ] = hyp->GetLength();
-    _value[ END_LENGTH_IND ] = hyp->GetPrecision();
+    _value[ PRECISION_IND ] = hyp->GetPrecision();
     ASSERT( _value[ BEG_LENGTH_IND ] > 0 );
     _hypType = LOCAL_LENGTH;
     aStatus = SMESH_Hypothesis::HYP_OK;
   }
 
+  else if (hypName == "MaxLength")
+  {
+    const StdMeshers_MaxLength * hyp =
+      dynamic_cast <const StdMeshers_MaxLength * >(theHyp);
+    ASSERT(hyp);
+    _value[ BEG_LENGTH_IND ] = hyp->GetLength();
+    if ( hyp->GetUsePreestimatedLength() ) {
+      if ( int nbSeg = aMesh.GetNbElementsPerDiagonal() )
+        _value[ BEG_LENGTH_IND ] = aMesh.GetShapeDiagonalSize() / nbSeg;
+    }
+    ASSERT( _value[ BEG_LENGTH_IND ] > 0 );
+    _hypType = MAX_LENGTH;
+    aStatus = SMESH_Hypothesis::HYP_OK;
+  }
+
   else if (hypName == "NumberOfSegments")
   {
     const StdMeshers_NumberOfSegments * hyp =
@@ -226,11 +242,11 @@ bool StdMeshers_Regular_1D::CheckHypothesis
     StdMeshers_AutomaticLength * hyp = const_cast<StdMeshers_AutomaticLength *>
       (dynamic_cast <const StdMeshers_AutomaticLength * >(theHyp));
     ASSERT(hyp);
-    //_value[ BEG_LENGTH_IND ] = _value[ END_LENGTH_IND ] = hyp->GetLength( &aMesh, aShape );
-    _value[ BEG_LENGTH_IND ] = hyp->GetLength( &aMesh, aShape );
-    _value[ END_LENGTH_IND ] = Precision::Confusion(); // ?? or set to zero?
+    _value[ BEG_LENGTH_IND ] = _value[ END_LENGTH_IND ] = hyp->GetLength( &aMesh, aShape );
+//     _value[ BEG_LENGTH_IND ] = hyp->GetLength( &aMesh, aShape );
+//     _value[ END_LENGTH_IND ] = Precision::Confusion(); // ?? or set to zero?
     ASSERT( _value[ BEG_LENGTH_IND ] > 0 );
-    _hypType = LOCAL_LENGTH;
+    _hypType = MAX_LENGTH;
     aStatus = SMESH_Hypothesis::HYP_OK;
   }
   else
@@ -413,11 +429,6 @@ static void compensateError(double a1, double an,
 
 void StdMeshers_Regular_1D::SetEventListener(SMESH_subMesh* subMesh)
 {
-//   static VertexEventListener listener;
-//   SMESH_subMeshIteratorPtr smIt = subMesh->getDependsOnIterator(false,false);
-//   while (smIt->more()) {
-//     subMesh->SetEventListener( &listener, 0, smIt->next() );
-//   }
   StdMeshers_Propagation::SetPropagationMgr( subMesh );
 }
 
@@ -567,10 +578,18 @@ bool StdMeshers_Regular_1D::computeInternalParameters(SMESH_Mesh &     theMesh,
   switch( _hypType )
   {
   case LOCAL_LENGTH:
+  case MAX_LENGTH:
   case NB_SEGMENTS: {
 
     double eltSize = 1;
-    if ( _hypType == LOCAL_LENGTH )
+    if ( _hypType == MAX_LENGTH )
+    {
+      double nbseg = ceil(theLength / _value[ BEG_LENGTH_IND ]); // integer sup
+      if (nbseg <= 0)
+        nbseg = 1;                        // degenerated edge
+      eltSize = theLength / nbseg;
+    }
+    else if ( _hypType == LOCAL_LENGTH )
     {
       // Local Length hypothesis
       double nbseg = ceil(theLength / _value[ BEG_LENGTH_IND ]); // integer sup
@@ -601,7 +620,7 @@ bool StdMeshers_Regular_1D::computeInternalParameters(SMESH_Mesh &     theMesh,
       }
       if (!isFound) // not found by meshed edge in the propagation chain, use precision
       {
-        double aPrecision = _value[ END_LENGTH_IND ];
+        double aPrecision = _value[ PRECISION_IND ];
         double nbseg_prec = ceil((theLength / _value[ BEG_LENGTH_IND ]) - aPrecision);
         if (nbseg_prec == (nbseg - 1)) nbseg--;
       }

src/StdMeshers/StdMeshers_Regular_1D.hxx

@@ -96,13 +96,14 @@ protected:
   StdMeshers_SegmentLengthAroundVertex* getVertexHyp(SMESH_Mesh &          theMesh,
                                                      const TopoDS_Vertex & theV);
 
-  enum HypothesisType { LOCAL_LENGTH, NB_SEGMENTS, BEG_END_LENGTH, DEFLECTION, ARITHMETIC_1D, NONE };
+  enum HypothesisType { LOCAL_LENGTH, MAX_LENGTH, NB_SEGMENTS, BEG_END_LENGTH, DEFLECTION, ARITHMETIC_1D, NONE };
 
   enum ValueIndex {
     SCALE_FACTOR_IND = 0,
     BEG_LENGTH_IND   = 0,
     END_LENGTH_IND   = 1,
-    DEFLECTION_IND   = 0
+    DEFLECTION_IND   = 0,
+    PRECISION_IND    = 0
   };
 
   enum IValueIndex {

src/StdMeshers/StdMeshers_SegmentLengthAroundVertex.cxx

@@ -202,3 +202,17 @@ bool StdMeshers_SegmentLengthAroundVertex::SetParametersByMesh(const SMESH_Mesh*
 
   return nbSegs;
 }
+
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_SegmentLengthAroundVertex::SetParametersByElementSize(double,
+                                                                      const SMESH_Mesh*)
+{
+  return false;
+}
+

src/StdMeshers/StdMeshers_SegmentLengthAroundVertex.hxx

@@ -61,6 +61,12 @@ class STDMESHERS_EXPORT StdMeshers_SegmentLengthAroundVertex:public SMESH_Hypoth
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
  protected:
   double _length;
 };

src/StdMeshers/StdMeshers_StartEndLength.cxx

@@ -198,3 +198,17 @@ bool StdMeshers_StartEndLength::SetParametersByMesh(const SMESH_Mesh*   theMesh,
   }
   return nbEdges;
 }
+
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_StartEndLength::SetParametersByElementSize(double            elemLenght,
+                                                           const SMESH_Mesh* /*theMesh*/)
+{
+  return bool(_begLength = _endLength = elemLenght );
+}
+

src/StdMeshers/StdMeshers_StartEndLength.hxx

@@ -57,6 +57,12 @@ class STDMESHERS_EXPORT StdMeshers_StartEndLength:public SMESH_Hypothesis
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
 protected:
   double _begLength, _endLength;
 };

src/StdMeshers/StdMeshers_TrianglePreference.cxx

@@ -114,3 +114,17 @@ bool StdMeshers_TrianglePreference::SetParametersByMesh(const SMESH_Mesh* /*theM
 {
   return false;
 }
+
+//================================================================================
+/*!
+ * \brief Initialize my parameter values by linear size of mesh element.
+ *  \retval bool - true if parameter values have been successfully defined
+ */
+//================================================================================
+
+bool StdMeshers_TrianglePreference::SetParametersByElementSize(double            /*elemLenght*/,
+                                                               const SMESH_Mesh* /*theMesh*/)
+{
+  return false;
+}
+

src/StdMeshers/StdMeshers_TrianglePreference.hxx

@@ -59,6 +59,12 @@ class STDMESHERS_EXPORT StdMeshers_TrianglePreference:public SMESH_Hypothesis
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
 
+  /*!
+   * \brief Initialize my parameter values by linear size of mesh element.
+   *  \retval bool - true if parameter values have been successfully defined
+   */
+  virtual bool SetParametersByElementSize( double elemLenght, const SMESH_Mesh* theMesh=0);
+
 };
 
 #endif