+ //================================================================================
+ /*!
+ * \brief Computes mimimal distance of face in-FACE nodes from an EDGE
+ * \param [in] face - the mesh face to treat
+ * \param [in] nodeOnEdge - a node on the EDGE
+ * \param [out] faceSize - the computed distance
+ * \return bool - true if faceSize computed
+ */
+ //================================================================================
+
+ bool getDistFromEdge( const SMDS_MeshElement* face,
+ const SMDS_MeshNode* nodeOnEdge,
+ double & faceSize )
+ {
+ faceSize = Precision::Infinite();
+ bool done = false;
+
+ int nbN = face->NbCornerNodes();
+ int iOnE = face->GetNodeIndex( nodeOnEdge );
+ int iNext[2] = { SMESH_MesherHelper::WrapIndex( iOnE+1, nbN ),
+ SMESH_MesherHelper::WrapIndex( iOnE-1, nbN ) };
+ const SMDS_MeshNode* nNext[2] = { face->GetNode( iNext[0] ),
+ face->GetNode( iNext[1] ) };
+ gp_XYZ segVec, segEnd = SMESH_TNodeXYZ( nodeOnEdge ); // segment on EDGE
+ double segLen = -1.;
+ // look for two neighbor not in-FACE nodes of face
+ for ( int i = 0; i < 2; ++i )
+ {
+ if ( nNext[i]->GetPosition()->GetDim() != 2 &&
+ nNext[i]->GetID() < nodeOnEdge->GetID() )
+ {
+ // look for an in-FACE node
+ for ( int iN = 0; iN < nbN; ++iN )
+ {
+ if ( iN == iOnE || iN == iNext[i] )
+ continue;
+ SMESH_TNodeXYZ pInFace = face->GetNode( iN );
+ gp_XYZ v = pInFace - segEnd;
+ if ( segLen < 0 )
+ {
+ segVec = SMESH_TNodeXYZ( nNext[i] ) - segEnd;
+ segLen = segVec.Modulus();
+ }
+ double distToSeg = v.Crossed( segVec ).Modulus() / segLen;
+ faceSize = Min( faceSize, distToSeg );
+ done = true;
+ }
+ segLen = -1;
+ }
+ }
+ return done;
+ }
+