X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FSMESH%2FSMESH_Algo.cxx;h=45c4a7f55f6bc129121c44f98a3d97ee3e526e34;hb=10191484fe88a27e962b8e4b57e09d390d8705c7;hp=a20e16a05fe2e7f3a39c01dad0b8c981a286a1ce;hpb=9b504e486741f715fe6169a33418954712c314c2;p=modules%2Fsmesh.git

diff --git a/src/SMESH/SMESH_Algo.cxx b/src/SMESH/SMESH_Algo.cxx
index a20e16a05..45c4a7f55 100644
--- a/src/SMESH/SMESH_Algo.cxx
+++ b/src/SMESH/SMESH_Algo.cxx
@@ -42,8 +42,6 @@
 #include "SMESH_TypeDefs.hxx"
 #include "SMESH_subMesh.hxx"
 
-#include <Basics_OCCTVersion.hxx>
-
 #include <BRepAdaptor_Curve.hxx>
 #include <BRepLProp.hxx>
 #include <BRep_Tool.hxx>
@@ -87,7 +85,7 @@ using namespace std;
 bool SMESH_Algo::Features::IsCompatible( const SMESH_Algo::Features& algo2 ) const
 {
   if ( _dim > algo2._dim ) return algo2.IsCompatible( *this );
-  // algo2 is of highter dimension
+  // algo2 is of higher dimension
   if ( _outElemTypes.empty() || algo2._inElemTypes.empty() )
     return false;
   bool compatible = true;
@@ -175,8 +173,8 @@ const SMESH_Algo::Features& SMESH_Algo::GetFeatures( const std::string& algoType
  */
 //=============================================================================
 
-SMESH_Algo::SMESH_Algo (int hypId, int studyId, SMESH_Gen * gen)
-  : SMESH_Hypothesis(hypId, studyId, gen)
+SMESH_Algo::SMESH_Algo (int hypId, SMESH_Gen * gen)
+  : SMESH_Hypothesis(hypId, gen)
 {
   _compatibleAllHypFilter = _compatibleNoAuxHypFilter = NULL;
   _onlyUnaryInput = _requireDiscreteBoundary = _requireShape = true;
@@ -204,26 +202,26 @@ SMESH_Algo::~SMESH_Algo()
  */
 //=============================================================================
 
-SMESH_0D_Algo::SMESH_0D_Algo(int hypId, int studyId, SMESH_Gen* gen)
-  : SMESH_Algo(hypId, studyId, gen)
+SMESH_0D_Algo::SMESH_0D_Algo(int hypId, SMESH_Gen* gen)
+  : SMESH_Algo(hypId, gen)
 {
   _shapeType = (1 << TopAbs_VERTEX);
   _type = ALGO_0D;
 }
-SMESH_1D_Algo::SMESH_1D_Algo(int hypId, int studyId, SMESH_Gen* gen)
-  : SMESH_Algo(hypId, studyId, gen)
+SMESH_1D_Algo::SMESH_1D_Algo(int hypId, SMESH_Gen* gen)
+  : SMESH_Algo(hypId, gen)
 {
   _shapeType = (1 << TopAbs_EDGE);
   _type = ALGO_1D;
 }
-SMESH_2D_Algo::SMESH_2D_Algo(int hypId, int studyId, SMESH_Gen* gen)
-  : SMESH_Algo(hypId, studyId, gen)
+SMESH_2D_Algo::SMESH_2D_Algo(int hypId, SMESH_Gen* gen)
+  : SMESH_Algo(hypId, gen)
 {
   _shapeType = (1 << TopAbs_FACE);
   _type = ALGO_2D;
 }
-SMESH_3D_Algo::SMESH_3D_Algo(int hypId, int studyId, SMESH_Gen* gen)
-  : SMESH_Algo(hypId, studyId, gen)
+SMESH_3D_Algo::SMESH_3D_Algo(int hypId, SMESH_Gen* gen)
+  : SMESH_Algo(hypId, gen)
 {
   _shapeType = (1 << TopAbs_SOLID);
   _type = ALGO_3D;
@@ -231,7 +229,7 @@ SMESH_3D_Algo::SMESH_3D_Algo(int hypId, int studyId, SMESH_Gen* gen)
 
 //=============================================================================
 /*!
- * Usually an algoritm has nothing to save
+ * Usually an algorithm has nothing to save
  */
 //=============================================================================
 
@@ -553,28 +551,35 @@ bool SMESH_Algo::IsStraight( const TopoDS_Edge & E,
   case GeomAbs_Hyperbola:
   case GeomAbs_Parabola:
     return false;
-  // case GeomAbs_BezierCurve:
-  // case GeomAbs_BSplineCurve:
-  // case GeomAbs_OtherCurve:
+    // case GeomAbs_BezierCurve:
+    // case GeomAbs_BSplineCurve:
+    // case GeomAbs_OtherCurve:
   default:;
   }
-  const double   f = curve.FirstParameter();
-  const double   l = curve.LastParameter();
-  const gp_Pnt  pf = curve.Value( f );
-  const gp_Pnt  pl = curve.Value( l );
-  const gp_Vec v1( pf, pl );
-  const double v1Len = v1.Magnitude();
-  if ( v1Len < std::numeric_limits< double >::min() )
+
+  // evaluate how far from a straight line connecting the curve ends
+  // stand internal points of the curve
+  double  f = curve.FirstParameter();
+  double  l = curve.LastParameter();
+  gp_Pnt pf = curve.Value( f );
+  gp_Pnt pl = curve.Value( l );
+  gp_Vec lineVec( pf, pl );
+  double lineLen2 = lineVec.SquareMagnitude();
+  if ( lineLen2 < std::numeric_limits< double >::min() )
     return false; // E seems closed
-  const double tol = Min( 10 * curve.Tolerance(), v1Len * 1e-2 );
+
+  double edgeTol = 10 * curve.Tolerance();
+  double lenTol2 = lineLen2 * 1e-4; 
+  double tol2 = Min( edgeTol * edgeTol, lenTol2 );
+
   const double nbSamples = 7;
   for ( int i = 0; i < nbSamples; ++i )
   {
-    const double  r = ( i + 1 ) / nbSamples;
-    const gp_Pnt pi = curve.Value( f * r + l * ( 1 - r ));
-    const gp_Vec vi( pf, pi );
-    const double  h = 0.5 * v1.Crossed( vi ).Magnitude() / v1Len;
-    if ( h > tol )
+    double  r = ( i + 1 ) / nbSamples;
+    gp_Pnt pi = curve.Value( f * r + l * ( 1 - r ));
+    gp_Vec vi( pf, pi );
+    double h2 = lineVec.Crossed( vi ).SquareMagnitude() / lineLen2;
+    if ( h2 > tol2 )
       return false;
   }
   return true;
@@ -751,7 +756,7 @@ SMESH_Algo::EMeshError SMESH_Algo::GetMeshError(SMESH_subMesh* subMesh)
     if ( !fIt->more() )
       return MEr_EMPTY;
 
-    // We check that olny links on EDGEs encouter once, the rest links, twice
+    // We check that only links on EDGEs encouter once, the rest links, twice
     set< SMESH_TLink > links;
     while ( fIt->more() )
     {
@@ -852,6 +857,16 @@ bool SMESH_Algo::Compute(SMESH_Mesh & /*aMesh*/, SMESH_MesherHelper* /*aHelper*/
   return error( COMPERR_BAD_INPUT_MESH, "Mesh built on shape expected");
 }
 
+//=======================================================================
+//function : IsApplicableToShape
+//purpose  : Return true if the algorithm can mesh a given shape
+//=======================================================================
+
+bool SMESH_Algo::IsApplicableToShape(const TopoDS_Shape & shape, bool toCheckAll) const
+{
+  return true;
+}
+
 //=======================================================================
 //function : CancelCompute
 //purpose  : Sets _computeCanceled to true. It's usage depends on