// SMESH SMESH_I : idl implementation based on 'SMESH' unit's calsses // // Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN, // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS // // This library is free software; you can redistribute it and/or // modify it under the terms of the GNU Lesser General Public // License as published by the Free Software Foundation; either // version 2.1 of the License. // // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public // License along with this library; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA // // See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org // // // // File : SMESH_MeshEditor.hxx // Created : Mon Apr 12 14:56:19 2004 // Author : Edward AGAPOV (eap) // Module : SMESH #ifndef SMESH_MeshEditor_HeaderFile #define SMESH_MeshEditor_HeaderFile #include "SMESH_Mesh.hxx" #include "SMESH_Controls.hxx" #include #include typedef map > TElemOfElemListMap; class SMDS_MeshElement; class SMDS_MeshFace; class SMDS_MeshNode; class gp_Ax1; class gp_Vec; class gp_Pnt; class SMESH_MeshEditor { public: SMESH_MeshEditor( SMESH_Mesh* theMesh ); bool Remove (const std::list< int >& theElemIDs, const bool isNodes); // Remove a node or an element. // Modify a compute state of sub-meshes which become empty bool InverseDiag (const SMDS_MeshElement * theTria1, const SMDS_MeshElement * theTria2 ); // Replace two neighbour triangles with ones built on the same 4 nodes // but having other common link. // Return False if args are improper bool InverseDiag (const SMDS_MeshNode * theNode1, const SMDS_MeshNode * theNode2 ); // Replace two neighbour triangles sharing theNode1-theNode2 link // with ones built on the same 4 nodes but having other common link. // Return false if proper faces not found bool DeleteDiag (const SMDS_MeshNode * theNode1, const SMDS_MeshNode * theNode2 ); // Replace two neighbour triangles sharing theNode1-theNode2 link // with a quadrangle built on the same 4 nodes. // Return false if proper faces not found bool Reorient (const SMDS_MeshElement * theElement); // Reverse theElement orientation /*! * \brief Fuse neighbour triangles into quadrangles. * \param theElems - The triangles to be fused. * \param theCriterion - Is used to choose a neighbour to fuse with. * \param theMaxAngle - Is a max angle between element normals at which fusion * is still performed; theMaxAngle is mesured in radians. * \retval bool - Success or not. */ bool TriToQuad (std::set & theElems, SMESH::Controls::NumericalFunctorPtr theCriterion, const double theMaxAngle); /*! * \brief Split quadrangles into triangles. * \param theElems - The faces to be splitted. * \param theCriterion - Is used to choose a diagonal for splitting. * \retval bool - Success or not. */ bool QuadToTri (std::set & theElems, SMESH::Controls::NumericalFunctorPtr theCriterion); /*! * \brief Split quadrangles into triangles. * \param theElems - The faces to be splitted. * \param the13Diag - Is used to choose a diagonal for splitting. * \retval bool - Success or not. */ bool QuadToTri (std::set & theElems, const bool the13Diag); /*! * \brief Find better diagonal for splitting. * \param theQuad - The face to find better splitting of. * \param theCriterion - Is used to choose a diagonal for splitting. * \retval int - 1 for 1-3 diagonal, 2 for 2-4, -1 - for errors. */ int BestSplit (const SMDS_MeshElement* theQuad, SMESH::Controls::NumericalFunctorPtr theCriterion); enum SmoothMethod { LAPLACIAN = 0, CENTROIDAL }; void Smooth (std::set & theElements, std::set & theFixedNodes, const SmoothMethod theSmoothMethod, const int theNbIterations, double theTgtAspectRatio = 1.0, const bool the2D = true); // Smooth theElements using theSmoothMethod during theNbIterations // or until a worst element has aspect ratio <= theTgtAspectRatio. // Aspect Ratio varies in range [1.0, inf]. // If theElements is empty, the whole mesh is smoothed. // theFixedNodes contains additionally fixed nodes. Nodes built // on edges and boundary nodes are always fixed. // If the2D, smoothing is performed using UV parameters of nodes // on geometrical faces void RotationSweep (std::set & theElements, const gp_Ax1& theAxis, const double theAngle, const int theNbSteps, const double theToler); // Generate new elements by rotation of theElements around theAxis // by theAngle by theNbSteps /*! * Auxilary flag for advanced extrusion. * BOUNDARY: create or not boundary for result of extrusion * SEW: try to use existing nodes or create new nodes in any case */ enum ExtrusionFlags { EXTRUSION_FLAG_BOUNDARY = 0x01, EXTRUSION_FLAG_SEW = 0x02 }; /*! * Create new node in the mesh with given coordinates * (auxilary for advanced extrusion) */ const SMDS_MeshNode* CreateNode(const double x, const double y, const double z, const double tolnode); /*! * Generate new elements by extrusion of theElements * by theStep by theNbSteps * param theHistory returns history of extrusion * param theFlags set flags for performing extrusion (see description * of enum ExtrusionFlags for additional information) * param theTolerance - uses for comparing locations of nodes if flag * EXTRUSION_FLAG_SEW is set */ //void ExtrusionSweep (std::set & theElements, // const gp_Vec& theStep, // const int theNbSteps); void ExtrusionSweep (set & theElems, const gp_Vec& theStep, const int theNbSteps, TElemOfElemListMap& newElemsMap, //SMESH_DataMapOfElemPtrSequenceOfElemPtr& theHistory, const int theFlags = EXTRUSION_FLAG_BOUNDARY, const double theTolerance = 1.e-6); // Generate new elements by extrusion of theElements // by theStep by theNbSteps enum Extrusion_Error { EXTR_OK, EXTR_NO_ELEMENTS, EXTR_PATH_NOT_EDGE, EXTR_BAD_PATH_SHAPE, EXTR_BAD_STARTING_NODE, EXTR_BAD_ANGLES_NUMBER, EXTR_CANT_GET_TANGENT }; Extrusion_Error ExtrusionAlongTrack (std::set & theElements, SMESH_subMesh* theTrackPattern, const SMDS_MeshNode* theNodeStart, const bool theHasAngles, std::list& theAngles, const bool theHasRefPoint, const gp_Pnt& theRefPoint); // Generate new elements by extrusion of theElements along path given by theTrackPattern, // theHasAngles are the rotation angles, base point can be given by theRefPoint void Transform (std::set & theElements, const gp_Trsf& theTrsf, const bool theCopy); // Move or copy theElements applying theTrsf to their nodes typedef std::list< std::list< const SMDS_MeshNode* > > TListOfListOfNodes; void FindCoincidentNodes (std::set & theNodes, const double theTolerance, TListOfListOfNodes & theGroupsOfNodes); // Return list of group of nodes close to each other within theTolerance. // Search among theNodes or in the whole mesh if theNodes is empty. int SimplifyFace (const vector faceNodes, vector& poly_nodes, vector& quantities) const; // Split face, defined by , into several faces by repeating nodes. // Is used by MergeNodes() void MergeNodes (TListOfListOfNodes & theNodeGroups); // In each group, the cdr of nodes are substituted by the first one // in all elements. void MergeEqualElements(); // Remove all but one of elements built on the same nodes. // Return nb of successfully merged groups. static bool CheckFreeBorderNodes(const SMDS_MeshNode* theNode1, const SMDS_MeshNode* theNode2, const SMDS_MeshNode* theNode3 = 0); // Return true if the three nodes are on a free border enum Sew_Error { SEW_OK, // for SewFreeBorder() SEW_BORDER1_NOT_FOUND, SEW_BORDER2_NOT_FOUND, SEW_BOTH_BORDERS_NOT_FOUND, SEW_BAD_SIDE_NODES, SEW_VOLUMES_TO_SPLIT, // for SewSideElements() SEW_DIFF_NB_OF_ELEMENTS, SEW_TOPO_DIFF_SETS_OF_ELEMENTS, SEW_BAD_SIDE1_NODES, SEW_BAD_SIDE2_NODES }; Sew_Error SewFreeBorder (const SMDS_MeshNode* theBorderFirstNode, const SMDS_MeshNode* theBorderSecondNode, const SMDS_MeshNode* theBorderLastNode, const SMDS_MeshNode* theSide2FirstNode, const SMDS_MeshNode* theSide2SecondNode, const SMDS_MeshNode* theSide2ThirdNode = 0, const bool theSide2IsFreeBorder = true, const bool toCreatePolygons = false, const bool toCreatePolyedrs = false); // Sew the free border to the side2 by replacing nodes in // elements on the free border with nodes of the elements // of the side 2. If nb of links in the free border and // between theSide2FirstNode and theSide2LastNode are different, // additional nodes are inserted on a link provided that no // volume elements share the splitted link. // The side 2 is a free border if theSide2IsFreeBorder == true. // Sewing is peformed between the given first, second and last // nodes on the sides. // theBorderFirstNode is merged with theSide2FirstNode. // if (!theSide2IsFreeBorder) then theSide2SecondNode gives // the last node on the side 2, which will be merged with // theBorderLastNode. // if (theSide2IsFreeBorder) then theSide2SecondNode will // be merged with theBorderSecondNode. // if (theSide2IsFreeBorder && theSide2ThirdNode == 0) then // the 2 free borders are sewn link by link and no additional // nodes are inserted. // Return false, if sewing failed. Sew_Error SewSideElements (std::set& theSide1, std::set& theSide2, const SMDS_MeshNode* theFirstNode1ToMerge, const SMDS_MeshNode* theFirstNode2ToMerge, const SMDS_MeshNode* theSecondNode1ToMerge, const SMDS_MeshNode* theSecondNode2ToMerge); // Sew two sides of a mesh. Nodes belonging to theSide1 are // merged with nodes of elements of theSide2. // Number of elements in theSide1 and in theSide2 must be // equal and they should have similar node connectivity. // The nodes to merge should belong to side s borders and // the first node should be linked to the second. void InsertNodesIntoLink(const SMDS_MeshElement* theFace, const SMDS_MeshNode* theBetweenNode1, const SMDS_MeshNode* theBetweenNode2, std::list& theNodesToInsert, const bool toCreatePoly = false); // insert theNodesToInsert into theFace between theBetweenNode1 and theBetweenNode2. // If toCreatePoly is true, replace theFace by polygon, else split theFace. void UpdateVolumes (const SMDS_MeshNode* theBetweenNode1, const SMDS_MeshNode* theBetweenNode2, std::list& theNodesToInsert); // insert theNodesToInsert into all volumes, containing link // theBetweenNode1 - theBetweenNode2, between theBetweenNode1 and theBetweenNode2. // static int SortQuadNodes (const SMDS_Mesh * theMesh, // int theNodeIds[] ); // // Set 4 nodes of a quadrangle face in a good order. // // Swap 1<->2 or 2<->3 nodes and correspondingly return // // 1 or 2 else 0. // // static bool SortHexaNodes (const SMDS_Mesh * theMesh, // int theNodeIds[] ); // // Set 8 nodes of a hexahedron in a good order. // // Return success status static void AddToSameGroups (const SMDS_MeshElement* elemToAdd, const SMDS_MeshElement* elemInGroups, SMESHDS_Mesh * aMesh); // Add elemToAdd to the groups the elemInGroups belongs to static const SMDS_MeshElement* FindFaceInSet(const SMDS_MeshNode* n1, const SMDS_MeshNode* n2, const std::set& elemSet, const std::set& avoidSet); // Return a face having linked nodes n1 and n2 and which is // - not in avoidSet, // - in elemSet provided that !elemSet.empty() int FindShape (const SMDS_MeshElement * theElem); // Return an index of the shape theElem is on // or zero if a shape not found SMESH_Mesh * GetMesh() { return myMesh; } SMESHDS_Mesh * GetMeshDS() { return myMesh->GetMeshDS(); } private: SMESH_Mesh * myMesh; }; #endif