-// Copyright (C) 2007-2008 CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2012 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
+// Copyright (C) 2003-2007 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 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.
+// 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
+// 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.salome-platform.org/ or email : webmaster.salome@opencascade.com
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
+
// File: SMESH_MesherHelper.hxx
// Created: 15.02.06 14:48:09
// Author: Sergey KUUL
#include <gp_Pnt2d.hxx>
#include <map>
+#include <vector>
+
+class GeomAPI_ProjectPointOnSurf;
+class GeomAPI_ProjectPointOnCurve;
+class SMESH_ProxyMesh;
typedef std::map<SMESH_TLink, const SMDS_MeshNode*> TLinkNodeMap;
typedef std::map<SMESH_TLink, const SMDS_MeshNode*>::iterator ItTLinkNode;
+typedef SMDS_Iterator<const TopoDS_Shape*> PShapeIterator;
+typedef boost::shared_ptr< PShapeIterator > PShapeIteratorPtr;
+
+typedef std::vector<const SMDS_MeshNode* > TNodeColumn;
+typedef std::map< double, TNodeColumn > TParam2ColumnMap;
+
+typedef gp_XY (*xyFunPtr)(const gp_XY& uv1, const gp_XY& uv2);
+
+//=======================================================================
/*!
- * \brief It helps meshers to add elements
+ * \brief It helps meshers to add elements and provides other utilities
*
- * It allow meshers not to care about creation of medium nodes
+ * - It allows meshers not to care about creation of medium nodes
* when filling a quadratic mesh. Helper does it itself.
- * It defines degree of elements to create when IsQuadraticSubMesh()
+ * It defines order of elements to create when IsQuadraticSubMesh()
* is called.
+ * - It provides information on a shape it is initialized with:
+ * periodicity, presence of singularities etc.
+ * - ...
*/
-
-typedef std::vector<const SMDS_MeshNode* > TNodeColumn;
-typedef std::map< double, TNodeColumn > TParam2ColumnMap;
+//=======================================================================
class SMESH_EXPORT SMESH_MesherHelper
{
// ---------- PUBLIC UTILITIES ----------
/*!
- * \brief Returns true if given node is medium
- * \param n - node to check
- * \param typeToCheck - type of elements containing the node to ask about node status
+ * \brief Returns true if all elements of a sub-mesh are of same shape
+ * \param smDS - sub-mesh to check elements of
+ * \param shape - expected shape of elements
+ * \param nullSubMeshRes - result value for the case of smDS == NULL
* \retval bool - check result
*/
- static bool IsMedium(const SMDS_MeshNode* node,
- const SMDSAbs_ElementType typeToCheck = SMDSAbs_All);
+ static bool IsSameElemGeometry(const SMESHDS_SubMesh* smDS,
+ SMDSAbs_GeometryType shape,
+ const bool nullSubMeshRes = true);
/*!
* \brief Load nodes bound to face into a map of node columns
* \param theParam2ColumnMap - map of node columns to fill
* \param theFace - the face on which nodes are searched for
- * \param theBaseEdge - the edge nodes of which are columns' bases
+ * \param theBaseSide - the edges holding nodes on which columns' bases
* \param theMesh - the mesh containing nodes
* \retval bool - false if something is wrong
*
* The key of the map is a normalized parameter of each
- * base node on theBaseEdge.
+ * base node on theBaseSide. Edges in theBaseSide must be sequenced.
* This method works in supposition that nodes on the face
* forms a rectangular grid and elements can be quardrangles or triangles
*/
+ static bool LoadNodeColumns(TParam2ColumnMap & theParam2ColumnMap,
+ const TopoDS_Face& theFace,
+ const std::list<TopoDS_Edge>& theBaseSide,
+ SMESHDS_Mesh* theMesh,
+ SMESH_ProxyMesh* theProxyMesh=0);
+ /*!
+ * \brief Variant of LoadNodeColumns() above with theBaseSide given by one edge
+ */
static bool LoadNodeColumns(TParam2ColumnMap & theParam2ColumnMap,
const TopoDS_Face& theFace,
const TopoDS_Edge& theBaseEdge,
- SMESHDS_Mesh* theMesh);
+ SMESHDS_Mesh* theMesh,
+ SMESH_ProxyMesh* theProxyMesh=0);
+ /*!
+ * \brief Return true if 2D mesh on FACE is structured
+ */
+ static bool IsStructured( SMESH_subMesh* faceSM );
+
+ /*!
+ * \brief Returns true if given node is medium
+ * \param n - node to check
+ * \param typeToCheck - type of elements containing the node to ask about node status
+ * \retval bool - check result
+ */
+ static bool IsMedium(const SMDS_MeshNode* node,
+ const SMDSAbs_ElementType typeToCheck = SMDSAbs_All);
/*!
* \brief Return support shape of a node
* \param node - the node
* \retval TopoDS_Shape - found support shape
*/
static TopoDS_Shape GetSubShapeByNode(const SMDS_MeshNode* node,
- SMESHDS_Mesh* meshDS);
+ const SMESHDS_Mesh* meshDS);
/*!
* \brief Return a valid node index, fixing the given one if necessary
return ind;
}
+ /*!
+ * \brief Count nb of sub-shapes
+ * \param shape - the shape
+ * \param type - the type of sub-shapes to count
+ * \param ignoreSame - if true, use map not to count same shapes, esle use explorer
+ * \retval int - the calculated number
+ */
+ static int Count(const TopoDS_Shape& shape,
+ const TopAbs_ShapeEnum type,
+ const bool ignoreSame);
+
/*!
* \brief Return number of unique ancestors of the shape
*/
static int NbAncestors(const TopoDS_Shape& shape,
const SMESH_Mesh& mesh,
TopAbs_ShapeEnum ancestorType=TopAbs_SHAPE);
+ /*!
+ * \brief Return iterator on ancestors of the given type
+ */
+ static PShapeIteratorPtr GetAncestors(const TopoDS_Shape& shape,
+ const SMESH_Mesh& mesh,
+ TopAbs_ShapeEnum ancestorType);
+ /*!
+ * \brief Find a common ancestor, of the given type, of two shapes
+ */
+ static TopoDS_Shape GetCommonAncestor(const TopoDS_Shape& shape1,
+ const TopoDS_Shape& shape2,
+ const SMESH_Mesh& mesh,
+ TopAbs_ShapeEnum ancestorType);
+ /*!
+ * \brief Return orientation of sub-shape in the main shape
+ */
+ static TopAbs_Orientation GetSubShapeOri(const TopoDS_Shape& shape,
+ const TopoDS_Shape& subShape);
+
+ static bool IsSubShape( const TopoDS_Shape& shape, const TopoDS_Shape& mainShape );
+
+ static bool IsSubShape( const TopoDS_Shape& shape, SMESH_Mesh* aMesh );
+
+ static double MaxTolerance( const TopoDS_Shape& shape );
+
+ static bool IsClosedEdge( const TopoDS_Edge& anEdge );
+
+ static TopoDS_Vertex IthVertex( const bool is2nd, TopoDS_Edge anEdge, const bool CumOri=true );
+
+ static TopAbs_ShapeEnum GetGroupType(const TopoDS_Shape& group,
+ const bool avoidCompound=false);
+
public:
// ---------- PUBLIC INSTANCE METHODS ----------
*/
bool GetIsQuadratic() const { return myCreateQuadratic; }
+ /*
+ * \brief Find out elements orientation on a geometrical face
+ */
+ bool IsReversedSubMesh (const TopoDS_Face& theFace);
+
/*!
* \brief Move medium nodes of faces and volumes to fix distorted elements
+ * \param error - container of fixed distorted elements
* \param volumeOnly - fix nodes on geom faces or not if the shape is solid
*/
- void FixQuadraticElements(bool volumeOnly=true);
+ void FixQuadraticElements(SMESH_ComputeErrorPtr& error, bool volumeOnly=true);
/*!
* \brief To set created elements on the shape set by IsQuadraticSubMesh()
* or the next methods. By defaul elements are set on the shape if
* a mesh has no shape to be meshed
*/
- void SetElementsOnShape(bool toSet) { mySetElemOnShape = toSet; }
-
- /*!
- * \brief Enable/disable checking of node parameters on shapes while adding elements.
- * In case of incorrect parameters mudium node place is computed as the middle
- * of two nodes. Default is false.
- * NOTE that this flag is reset to "not to check" if check with non-default partameter
- * is successful
- */
- void SetCheckNodePosition(bool toCheck) { myCheckNodePos = toCheck; }
+ bool SetElementsOnShape(bool toSet)
+ { bool res = mySetElemOnShape; mySetElemOnShape = toSet; return res; }
/*!
* \brief Set shape to make elements on without calling IsQuadraticSubMesh()
/*!
* \brief Return the shape set by IsQuadraticSubMesh() or SetSubShape()
*/
- TopoDS_Shape GetSubShape() const { return myShape; }
+ const TopoDS_Shape& GetSubShape() const { return myShape; }
/*!
* Creates a node
*/
- SMDS_MeshNode* AddNode(double x, double y, double z, int ID = 0);
+ SMDS_MeshNode* AddNode(double x, double y, double z, int ID = 0, double u=0., double v=0.);
/*!
* Creates quadratic or linear edge
*/
const SMDS_MeshNode* n2,
const SMDS_MeshNode* n3,
const int id=0,
- const bool force3d = false);
+ const bool force3d = false);
/*!
* Creates quadratic or linear quadrangle
*/
const SMDS_MeshNode* n3,
const SMDS_MeshNode* n4,
const int id = 0,
- const bool force3d = false);
+ const bool force3d = false);
+
/*!
- * Creates quadratic or linear tetraahedron
+ * Creates polygon, with additional nodes in quadratic mesh
+ */
+ SMDS_MeshFace* AddPolygonalFace (const std::vector<const SMDS_MeshNode*>& nodes,
+ const int id = 0,
+ const bool force3d = false);
+ /*!
+ * Creates quadratic or linear tetrahedron
*/
SMDS_MeshVolume* AddVolume(const SMDS_MeshNode* n1,
const SMDS_MeshNode* n2,
const SMDS_MeshNode* n3,
const SMDS_MeshNode* n4,
const int id = 0,
- const bool force3d = true);
+ const bool force3d = true);
/*!
* Creates quadratic or linear pyramid
*/
const SMDS_MeshNode* n4,
const SMDS_MeshNode* n5,
const int id = 0,
- const bool force3d = true);
+ const bool force3d = true);
/*!
* Creates quadratic or linear pentahedron
*/
const SMDS_MeshNode* n5,
const SMDS_MeshNode* n6,
const int id = 0,
- const bool force3d = true);
+ const bool force3d = true);
/*!
* Creates quadratic or linear hexahedron
*/
const SMDS_MeshNode* n7,
const SMDS_MeshNode* n8,
const int id = 0,
- bool force3d = true);
+ bool force3d = true);
+
+ /*!
+ * Creates LINEAR!!!!!!!!! octahedron
+ */
+ SMDS_MeshVolume* AddVolume(const SMDS_MeshNode* n1,
+ const SMDS_MeshNode* n2,
+ const SMDS_MeshNode* n3,
+ const SMDS_MeshNode* n4,
+ const SMDS_MeshNode* n5,
+ const SMDS_MeshNode* n6,
+ const SMDS_MeshNode* n7,
+ const SMDS_MeshNode* n8,
+ const SMDS_MeshNode* n9,
+ const SMDS_MeshNode* n10,
+ const SMDS_MeshNode* n11,
+ const SMDS_MeshNode* n12,
+ const int id = 0,
+ bool force3d = true);
+
+ /*!
+ * Creates polyhedron. In quadratic mesh, adds medium nodes
+ */
+ SMDS_MeshVolume* AddPolyhedralVolume (const std::vector<const SMDS_MeshNode*>& nodes,
+ const std::vector<int>& quantities,
+ const int ID=0,
+ const bool force3d = true);
+ /*!
+ * \brief Enables fixing node parameters on EDGEs and FACEs by
+ * GetNodeU(...,check=true), GetNodeUV(...,check=true), CheckNodeUV() and
+ * CheckNodeU() in case if a node lies on a shape set via SetSubShape().
+ * Default is False
+ */
+ void ToFixNodeParameters(bool toFix);
+
/*!
* \brief Return U of the given node on the edge
*/
double GetNodeU(const TopoDS_Edge& theEdge,
const SMDS_MeshNode* theNode,
+ const SMDS_MeshNode* inEdgeNode=0,
bool* check=0);
/*!
* \brief Return node UV on face
* \param inFaceNode - a node of element being created located inside a face
+ * \param check - if provided, returns result of UV check that it enforces
*/
gp_XY GetNodeUV(const TopoDS_Face& F,
const SMDS_MeshNode* n,
const SMDS_MeshNode* inFaceNode=0,
bool* check=0) const;
+ /*!
+ * \brief Check and fix node UV on a face
+ * \param force - check even if checks of other nodes on this face passed OK
+ * \param distXYZ - returns result distance and point coordinates
+ * \retval bool - false if UV is bad and could not be fixed
+ */
+ bool CheckNodeUV(const TopoDS_Face& F,
+ const SMDS_MeshNode* n,
+ gp_XY& uv,
+ const double tol,
+ const bool force=false,
+ double distXYZ[4]=0) const;
+ /*!
+ * \brief Check and fix node U on an edge
+ * \param force - check even if checks of other nodes on this edge passed OK
+ * \param distXYZ - returns result distance and point coordinates
+ * \retval bool - false if U is bad and could not be fixed
+ */
+ bool CheckNodeU(const TopoDS_Edge& E,
+ const SMDS_MeshNode* n,
+ double& u,
+ const double tol,
+ const bool force=false,
+ double distXYZ[4]=0) const;
/*!
* \brief Return middle UV taking in account surface period
*/
static gp_XY GetMiddleUV(const Handle(Geom_Surface)& surface,
const gp_XY& uv1,
const gp_XY& uv2);
+ /*!
+ * \brief Define a pointer to wrapper over a function of gp_XY class,
+ * suitable to pass as xyFunPtr to applyIn2D().
+ * For exaple gp_XY_FunPtr(Added) defines pointer gp_XY_Added to function
+ * calling gp_XY::Added(gp_XY), which is to be used like following
+ * applyIn2D(surf, uv1, uv2, gp_XY_Added)
+ */
+#define gp_XY_FunPtr(meth) \
+ static gp_XY __gpXY_##meth (const gp_XY& uv1, const gp_XY& uv2) { return uv1.meth( uv2 ); } \
+ static xyFunPtr gp_XY_##meth = & __gpXY_##meth
+
+ /*!
+ * \brief Perform given operation on two 2d points in parameric space of given surface.
+ * It takes into account period of the surface. Use gp_XY_FunPtr macro
+ * to easily define pointer to function of gp_XY class.
+ */
+ static gp_XY applyIn2D(const Handle(Geom_Surface)& surface,
+ const gp_XY& uv1,
+ const gp_XY& uv2,
+ xyFunPtr fun,
+ const bool resultInPeriod=true);
+
/*!
* \brief Check if inFaceNode argument is necessary for call GetNodeUV(F,..)
* \retval bool - return true if the face is periodic
*
- * if F is Null, answer about subshape set through IsQuadraticSubMesh() or
+ * If F is Null, answer about subshape set through IsQuadraticSubMesh() or
* SetSubShape()
*/
bool GetNodeUVneedInFaceNode(const TopoDS_Face& F = TopoDS_Face()) const;
+ /*!
+ * \brief Return projector intitialized by given face without location, which is returned
+ */
+ GeomAPI_ProjectPointOnSurf& GetProjector(const TopoDS_Face& F,
+ TopLoc_Location& loc,
+ double tol=0 ) const;
+
/*!
* \brief Check if shape is a degenerated edge or it's vertex
* \param subShape - edge or vertex index in SMESHDS
*/
bool IsDegenShape(const int subShape) const
{ return myDegenShapeIds.find( subShape ) != myDegenShapeIds.end(); }
+ /*!
+ * \brief Check if the shape set through IsQuadraticSubMesh() or SetSubShape()
+ * has a degenerated edges
+ * \retval bool - true if it has
+ */
+ bool HasDegeneratedEdges() const { return !myDegenShapeIds.empty(); }
+
/*!
* \brief Check if shape is a seam edge or it's vertex
* \param subShape - edge or vertex index in SMESHDS
*/
double GetOtherParam(const double param) const;
- /**
- * Special function for search or creation medium node
+ /*!
+ * \brief Return existing or create new medium nodes between given ones
+ * \param force3d - true means node creation at the middle between the
+ * two given nodes, else node position is found on its
+ * supporting geometrical shape, if any.
*/
const SMDS_MeshNode* GetMediumNode(const SMDS_MeshNode* n1,
const SMDS_MeshNode* n2,
const bool force3d);
/*!
- * Auxilary function for filling myTLinkNodeMap
+ * \brief Return index and type of the shape (EDGE or FACE only) to set a medium node on
+ */
+ std::pair<int, TopAbs_ShapeEnum> GetMediumPos(const SMDS_MeshNode* n1,
+ const SMDS_MeshNode* n2,
+ const bool useCurSubShape=false);
+ /*!
+ * \brief Add a link in my data structure
*/
void AddTLinkNode(const SMDS_MeshNode* n1,
const SMDS_MeshNode* n2,
const SMDS_MeshNode* n12);
- /**
- * Auxilary function for filling myTLinkNodeMap
+ /*!
+ * \brief Add many links in my data structure
*/
void AddTLinkNodeMap(const TLinkNodeMap& aMap)
{ myTLinkNodeMap.insert(aMap.begin(), aMap.end()); }
+ void AddTLinks(const SMDS_MeshEdge* edge);
+ void AddTLinks(const SMDS_MeshFace* face);
+ void AddTLinks(const SMDS_MeshVolume* vol);
+
/**
* Returns myTLinkNodeMap
*/
enum MType{ LINEAR, QUADRATIC, COMP };
MType IsQuadraticMesh();
+ virtual ~SMESH_MesherHelper();
+
protected:
/*!
*/
gp_Pnt2d GetUVOnSeam( const gp_Pnt2d& uv1, const gp_Pnt2d& uv2 ) const;
+ const SMDS_MeshNode* getMediumNodeOnComposedWire(const SMDS_MeshNode* n1,
+ const SMDS_MeshNode* n2,
+ bool force3d);
private:
// Forbiden copy constructor
std::set< int > myDegenShapeIds;
std::set< int > mySeamShapeIds;
- double myPar1, myPar2; // bounds of a closed periodic surface
- int myParIndex; // bounds' index (1-U, 2-V)
+ double myPar1[2], myPar2[2]; // U and V bounds of a closed periodic surface
+ int myParIndex; // bounds' index (1-U, 2-V, 3-both)
+
+ typedef std::map< int, GeomAPI_ProjectPointOnSurf* > TID2ProjectorOnSurf;
+ TID2ProjectorOnSurf myFace2Projector;
+ typedef std::map< int, GeomAPI_ProjectPointOnCurve* > TID2ProjectorOnCurve;
+ TID2ProjectorOnCurve myEdge2Projector;
TopoDS_Shape myShape;
SMESH_Mesh* myMesh;
int myShapeID;
- // to create quadratic elements
bool myCreateQuadratic;
bool mySetElemOnShape;
- bool myCheckNodePos;
+ bool myFixNodeParameters;
+
+ std::map< int,bool > myNodePosShapesValidity;
+ bool toCheckPosOnShape(int shapeID ) const;
+ void setPosOnShapeValidity(int shapeID, bool ok ) const;
};
