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GPUSPHGUI: add FillHole() operation
[modules/smesh.git] / src / SMESHUtils / SMESH_MeshAlgos.hxx
index 487f8d2016cc9163f0d345966f856f742242a48d..10af7a63673cc72e514780e47cc0e6ea72aab41a 100644 (file)
@@ -1,4 +1,4 @@
-// Copyright (C) 2007-2015  CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2016  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
@@ -55,6 +55,10 @@ struct SMESHUtils_EXPORT SMESH_NodeSearcher
 {
   virtual const SMDS_MeshNode* FindClosestTo( const gp_Pnt& pnt ) = 0;
   virtual void MoveNode( const SMDS_MeshNode* node, const gp_Pnt& toPnt ) = 0;
+  virtual int  FindNearPoint(const gp_Pnt&                        point,
+                             const double                         tolerance,
+                             std::vector< const SMDS_MeshNode* >& foundNodes) = 0;
+  virtual ~SMESH_NodeSearcher() {}
 };
 
 //=======================================================================
@@ -85,10 +89,26 @@ struct SMESHUtils_EXPORT SMESH_ElementSearcher
   virtual void GetElementsNearLine( const gp_Ax1&                           line,
                                     SMDSAbs_ElementType                     type,
                                     std::vector< const SMDS_MeshElement* >& foundElems) = 0;
+  /*!
+   * \brief Return elements whose bounding box intersects a sphere
+   */
+  virtual void GetElementsInSphere( const gp_XYZ&                           center,
+                                    const double                            radius,
+                                    SMDSAbs_ElementType                     type,
+                                    std::vector< const SMDS_MeshElement* >& foundElems) = 0;
   /*!
    * \brief Find out if the given point is out of closed 2D mesh.
    */
   virtual TopAbs_State GetPointState(const gp_Pnt& point) = 0;
+
+  /*!
+   * \brief Return a projection of a given point to a 2D mesh.
+   *        Optionally return the closest face
+   */
+  virtual gp_XYZ Project(const gp_Pnt&            point,
+                         SMDSAbs_ElementType      type,
+                         const SMDS_MeshElement** closestFace= 0) = 0;
+
   virtual ~SMESH_ElementSearcher();
 };
 
@@ -101,16 +121,16 @@ namespace SMESH_MeshAlgos
   bool IsOut( const SMDS_MeshElement* element, const gp_Pnt& point, double tol );
 
   SMESHUtils_EXPORT
-  double GetDistance( const SMDS_MeshElement* elem, const gp_Pnt& point );
+  double GetDistance( const SMDS_MeshElement* elem, const gp_Pnt& point, gp_XYZ* closestPnt = 0 );
 
   SMESHUtils_EXPORT
-  double GetDistance( const SMDS_MeshEdge* edge, const gp_Pnt& point );
+  double GetDistance( const SMDS_MeshEdge* edge, const gp_Pnt& point, gp_XYZ* closestPnt = 0 );
 
   SMESHUtils_EXPORT
-  double GetDistance( const SMDS_MeshFace* face, const gp_Pnt& point );
+  double GetDistance( const SMDS_MeshFace* face, const gp_Pnt& point, gp_XYZ* closestPnt = 0 );
 
   SMESHUtils_EXPORT
-  double GetDistance( const SMDS_MeshVolume* volume, const gp_Pnt& point );
+  double GetDistance( const SMDS_MeshVolume* volume, const gp_Pnt& point, gp_XYZ* closestPnt = 0 );
 
   SMESHUtils_EXPORT
   void GetBarycentricCoords( const gp_XY& point,
@@ -142,6 +162,14 @@ namespace SMESH_MeshAlgos
   SMESHUtils_EXPORT
   std::vector< const SMDS_MeshNode*> GetCommonNodes(const SMDS_MeshElement* e1,
                                                     const SMDS_MeshElement* e2);
+  /*!
+   * \brief Return true if node1 encounters first in the face and node2, after.
+   *        The nodes are supposed to be neighbor nodes in the face.
+   */
+  SMESHUtils_EXPORT
+  bool IsRightOrder( const SMDS_MeshElement* face,
+                     const SMDS_MeshNode*    node0,
+                     const SMDS_MeshNode*    node1 );
 
   /*!
    * \brief Return SMESH_NodeSearcher. The caller is responsible for deleteing it
@@ -149,14 +177,83 @@ namespace SMESH_MeshAlgos
   SMESHUtils_EXPORT
   SMESH_NodeSearcher* GetNodeSearcher( SMDS_Mesh& mesh );
 
+  SMESHUtils_EXPORT
+  SMESH_NodeSearcher* GetNodeSearcher( SMDS_ElemIteratorPtr elemIt );
+
   /*!
    * \brief Return SMESH_ElementSearcher. The caller is responsible for deleting it
    */
   SMESHUtils_EXPORT
-  SMESH_ElementSearcher* GetElementSearcher( SMDS_Mesh& mesh );
+  SMESH_ElementSearcher* GetElementSearcher( SMDS_Mesh& mesh,
+                                             double     tolerance=-1.);
   SMESHUtils_EXPORT
   SMESH_ElementSearcher* GetElementSearcher( SMDS_Mesh& mesh,
-                                             SMDS_ElemIteratorPtr elemIt );
-}
+                                             SMDS_ElemIteratorPtr elemIt,
+                                             double     tolerance=-1. );
+
+
+
+  typedef std::vector<const SMDS_MeshNode*> TFreeBorder;
+  typedef std::vector<TFreeBorder>          TFreeBorderVec;
+  struct TFreeBorderPart
+  {
+    int _border; // border index within a TFreeBorderVec
+    int _node1;  // node index within the border-th TFreeBorder
+    int _node2;
+    int _nodeLast;
+  };
+  typedef std::vector<TFreeBorderPart>  TCoincidentGroup;
+  typedef std::vector<TCoincidentGroup> TCoincidentGroupVec;
+  struct CoincidentFreeBorders
+  {
+    TFreeBorderVec      _borders;          // nodes of all free borders
+    TCoincidentGroupVec _coincidentGroups; // groups of coincident parts of borders
+  };
+
+  /*!
+   * Returns TFreeBorder's coincident within the given tolerance.
+   * If the tolerance <= 0.0 then one tenth of an average size of elements adjacent
+   * to free borders being compared is used.
+   *
+   * (Implemented in ./SMESH_FreeBorders.cxx)
+   */
+  SMESHUtils_EXPORT
+  void FindCoincidentFreeBorders(SMDS_Mesh&              mesh,
+                                 double                  tolerance,
+                                 CoincidentFreeBorders & foundFreeBordes);
+  /*!
+   * Returns all or only closed TFreeBorder's.
+   * Optionally check if the mesh is manifold and if faces are correctly oriented.
+   *
+   * (Implemented in ./SMESH_FreeBorders.cxx)
+   */
+  SMESHUtils_EXPORT
+  void FindFreeBorders(SMDS_Mesh&       mesh,
+                       TFreeBorderVec & foundFreeBordes,
+                       const bool       closedOnly,
+                       bool*            isManifold = 0,
+                       bool*            isGoodOri = 0);
+  /*!
+   * Fill a hole defined by a TFreeBorder with 2D elements.
+   *
+   * (Implemented in ./SMESH_FillHole.cxx)
+   */
+  SMESHUtils_EXPORT
+  void FillHole(const TFreeBorder &                   freeBorder,
+                SMDS_Mesh&                            mesh,
+                std::vector<const SMDS_MeshElement*>& newFaces);
+
+
+  /*!
+   * \brief Find nodes whose merge makes the element invalid
+   *
+   * (Implemented in SMESH_DeMerge.cxx)
+   */
+  SMESHUtils_EXPORT
+  void DeMerge(const SMDS_MeshElement*              elem,
+               std::vector< const SMDS_MeshNode* >& newNodes,
+               std::vector< const SMDS_MeshNode* >& noMergeNodes);
+
+} // namespace SMESH_MeshAlgos
 
 #endif