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390 lines
15 KiB
C++
390 lines
15 KiB
C++
// Copyright (C) 2007-2013 CEA/DEN, EDF R&D, OPEN CASCADE
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//
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// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
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// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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//
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// File : SMESH_Pattern.hxx
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// Created : Mon Aug 2 10:30:00 2004
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// Author : Edward AGAPOV (eap)
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//
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#ifndef SMESH_Pattern_HeaderFile
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#define SMESH_Pattern_HeaderFile
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#include "SMESH_SMESH.hxx"
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#include <vector>
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#include <list>
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#include <map>
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#include <set>
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#include <iostream>
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#include <TopoDS_Vertex.hxx>
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#include <TopTools_IndexedMapOfOrientedShape.hxx>
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#include <gp_XYZ.hxx>
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#include <gp_XY.hxx>
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#include <gp_Pnt.hxx>
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class SMDS_MeshElement;
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class SMDS_MeshFace;
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class SMDS_MeshVolume;
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class SMDS_MeshNode;
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class SMESH_Mesh;
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class SMESHDS_SubMesh;
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class TopoDS_Shell;
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class TopoDS_Face;
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class TopoDS_Edge;
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//
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// Class allowing meshing by mapping of pre-defined patterns: it generates
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// a 2D mesh on a geometrical face or a 3D mesh inside a geometrical block
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// of 6 faces.
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//
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class SMESH_EXPORT SMESH_Pattern {
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public:
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SMESH_Pattern ();
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void Clear();
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// clear fields
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bool Load (const char* theFileContents);
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// Load a pattern from <theFileContents>
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bool Load (SMESH_Mesh* theMesh,
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const TopoDS_Face& theFace,
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bool theProject = false,
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TopoDS_Vertex the1stVertex=TopoDS_Vertex());
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// Create a pattern from the mesh built on <theFace>.
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// <theProject>==true makes override nodes positions
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// on <theFace> computed by mesher
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bool Load (SMESH_Mesh* theMesh,
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const TopoDS_Shell& theBlock);
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// Create a pattern from the mesh built on <theBlock>
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bool Save (std::ostream& theFile);
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// Save the loaded pattern into theFile
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bool Apply (const TopoDS_Face& theFace,
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const TopoDS_Vertex& theVertexOnKeyPoint1,
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const bool theReverse);
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// Compute nodes coordinates applying
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// the loaded pattern to <theFace>. The first key-point
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// will be mapped into <theVertexOnKeyPoint1>, which must
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// be in the outer wire of theFace
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bool Apply (const TopoDS_Shell& theBlock,
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const TopoDS_Vertex& theVertex000,
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const TopoDS_Vertex& theVertex001);
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// Compute nodes coordinates applying
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// the loaded pattern to <theBlock>. The (0,0,0) key-point
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// will be mapped into <theVertex000>. The
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// (0,0,1) key-point will be mapped into <theVertex001>.
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bool Apply (const SMDS_MeshFace* theFace,
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const int theNodeIndexOnKeyPoint1,
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const bool theReverse);
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// Compute nodes coordinates applying
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// the loaded pattern to <theFace>. The first key-point
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// will be mapped into <theNodeIndexOnKeyPoint1>-th node
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bool Apply (SMESH_Mesh* theMesh,
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const SMDS_MeshFace* theFace,
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const TopoDS_Shape& theSurface,
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const int theNodeIndexOnKeyPoint1,
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const bool theReverse);
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// Compute nodes coordinates applying
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// the loaded pattern to <theFace>. The first key-point
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// will be mapped into <theNodeIndexOnKeyPoint1>-th node
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bool Apply (SMESH_Mesh* theMesh,
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std::set<const SMDS_MeshFace*>& theFaces,
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const int theNodeIndexOnKeyPoint1,
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const bool theReverse);
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// Compute nodes coordinates applying
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// the loaded pattern to <theFaces>. The first key-point
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// will be mapped into <theNodeIndexOnKeyPoint1>-th node
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bool Apply (const SMDS_MeshVolume* theVolume,
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const int theNode000Index,
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const int theNode001Index);
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// Compute nodes coordinates applying
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// the loaded pattern to <theVolume>. The (0,0,0) key-point
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// will be mapped into <theNode000Index>-th node. The
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// (0,0,1) key-point will be mapped into <theNode000Index>-th
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// node.
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bool Apply (std::set<const SMDS_MeshVolume*>& theVolumes,
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const int theNode000Index,
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const int theNode001Index);
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// Compute nodes coordinates applying
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// the loaded pattern to <theVolumes>. The (0,0,0) key-point
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// will be mapped into <theNode000Index>-th node. The
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// (0,0,1) key-point will be mapped into <theNode000Index>-th
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// node.
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bool GetMappedPoints ( std::list<const gp_XYZ *> & thePoints ) const;
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// Return nodes coordinates computed by Apply() method
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bool MakeMesh(SMESH_Mesh* theMesh,
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const bool toCreatePolygons = false,
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const bool toCreatePolyedrs = false);
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// Create nodes and elements in <theMesh> using nodes
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// coordinates computed by either of Apply...() methods
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// ----------
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// Inquiries
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// ----------
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enum ErrorCode {
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ERR_OK,
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// Load(file)
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ERR_READ_NB_POINTS, // couldn't read nb of points
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ERR_READ_POINT_COORDS, // invalid nb of point coordinates
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ERR_READ_TOO_FEW_POINTS, // too few points in a pattern
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ERR_READ_3D_COORD, // coordinate of 3D point out of [0,1] range
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ERR_READ_NO_KEYPOINT, // no key-points in 2D pattern
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ERR_READ_BAD_INDEX, // invalid point index
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ERR_READ_ELEM_POINTS, // invalid nb of points in element
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ERR_READ_NO_ELEMS, // no elements in a pattern
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ERR_READ_BAD_KEY_POINT, // a key-point not on a boundary
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// Save(file)
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ERR_SAVE_NOT_LOADED, // pattern was not loaded
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// Load(shape)
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ERR_LOAD_EMPTY_SUBMESH, // no elements to load
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// Load(face)
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ERR_LOADF_NARROW_FACE, // too narrow face
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ERR_LOADF_CLOSED_FACE, // closed face
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ERR_LOADF_CANT_PROJECT, // impossible to project nodes
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// Load(volume)
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ERR_LOADV_BAD_SHAPE, // volume is not a brick of 6 faces
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ERR_LOADV_COMPUTE_PARAMS, // cant compute point parameters
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// Apply(shape)
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ERR_APPL_NOT_COMPUTED, // mapping failed
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ERR_APPL_NOT_LOADED, // pattern was not loaded
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ERR_APPL_BAD_DIMENTION, // wrong shape dimention
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ERR_APPL_BAD_NB_VERTICES, // keypoints - vertices mismatch
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// Apply(face)
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ERR_APPLF_BAD_TOPOLOGY, // bad pattern topology
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ERR_APPLF_BAD_VERTEX, // first vertex not on an outer face boundary
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ERR_APPLF_INTERNAL_EEROR, // program error
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// Apply(volume)
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ERR_APPLV_BAD_SHAPE, // volume is not a brick of 6 faces
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// Apply(mesh_face)
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ERR_APPLF_BAD_FACE_GEOM, // bad face geometry
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// MakeMesh
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ERR_MAKEM_NOT_COMPUTED, // mapping failed
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//Unexpected error
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ERR_UNEXPECTED // Unexpected of the pattern mapping alorithm
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};
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ErrorCode GetErrorCode() const { return myErrorCode; }
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// return ErrorCode of the last operation
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bool IsLoaded() const { return !myPoints.empty() && !myElemPointIDs.empty(); }
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// Return true if a pattern was successfully loaded
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bool Is2D() const { return myIs2D; }
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// Return true if the loaded pattern is a 2D one
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bool GetPoints ( std::list<const gp_XYZ *> & thePoints ) const;
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// Return nodes coordinates of the pattern
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const std::list< int > & GetKeyPointIDs () const { return myKeyPointIDs; }
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// Return indices of key-points within the sequences returned by
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// GetPoints() and GetMappedPoints()
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const std::list< std::list< int > >& GetElementPointIDs (bool applied) const
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{ return myElemXYZIDs.empty() || !applied ? myElemPointIDs : myElemXYZIDs; }
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// Return nodal connectivity of the elements of the pattern
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void DumpPoints() const;
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// Debug
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// -----------------------------
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// Utilities for advanced usage
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// -----------------------------
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TopoDS_Shape GetSubShape( const int i ) const {
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if ( i < 1 || i > myShapeIDMap.Extent() ) return TopoDS_Shape();
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return myShapeIDMap( i );
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}
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// Return a shape from myShapeIDMap where shapes are indexed so that first go
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// ordered vertices, then ordered edge, then faces and maybe a shell
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private:
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// private methods
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struct TPoint {
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gp_XYZ myInitXYZ; // loaded postion
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gp_XY myInitUV;
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double myInitU; // [0,1]
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gp_Pnt myXYZ; // position to compute
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gp_XY myUV;
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double myU;
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TPoint();
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};
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friend std::ostream & operator <<(std::ostream & OS, const TPoint& p);
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bool setErrorCode( const ErrorCode theErrorCode );
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// set ErrorCode and return true if it is Ok
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bool setShapeToMesh(const TopoDS_Shape& theShape);
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// Set a shape to be meshed. Return True if meshing is possible
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std::list< TPoint* > & getShapePoints(const TopoDS_Shape& theShape);
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// Return list of points located on theShape.
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// A list of edge-points include vertex-points (for 2D pattern only).
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// A list of face-points doesnt include edge-points.
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// A list of volume-points doesnt include face-points.
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std::list< TPoint* > & getShapePoints(const int theShapeID);
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// Return list of points located on the shape
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bool findBoundaryPoints();
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// If loaded from file, find points to map on edges and faces and
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// compute their parameters
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void arrangeBoundaries (std::list< std::list< TPoint* > >& boundaryPoints);
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// if there are several wires, arrange boundaryPoints so that
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// the outer wire goes first and fix inner wires orientation;
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// update myKeyPointIDs to correspond to the order of key-points
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// in boundaries; sort internal boundaries by the nb of key-points
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void computeUVOnEdge( const TopoDS_Edge& theEdge, const std::list< TPoint* > & ePoints );
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// compute coordinates of points on theEdge
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bool compUVByIsoIntersection (const std::list< std::list< TPoint* > >& boundaryPoints,
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const gp_XY& theInitUV,
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gp_XY& theUV,
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bool & theIsDeformed);
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// compute UV by intersection of iso-lines found by points on edges
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bool compUVByElasticIsolines(const std::list< std::list< TPoint* > >& boundaryPoints,
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const std::list< TPoint* >& pointsToCompute);
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// compute UV as nodes of iso-poly-lines consisting of
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// segments keeping relative size as in the pattern
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double setFirstEdge (std::list< TopoDS_Edge > & theWire, int theFirstEdgeID);
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// choose the best first edge of theWire; return the summary distance
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// between point UV computed by isolines intersection and
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// eventual UV got from edge p-curves
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typedef std::list< std::list< TopoDS_Edge > > TListOfEdgesList;
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bool sortSameSizeWires (TListOfEdgesList & theWireList,
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const TListOfEdgesList::iterator& theFromWire,
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const TListOfEdgesList::iterator& theToWire,
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const int theFirstEdgeID,
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std::list< std::list< TPoint* > >& theEdgesPointsList );
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// sort wires in theWireList from theFromWire until theToWire,
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// the wires are set in the order to correspond to the order
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// of boundaries; after sorting, edges in the wires are put
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// in a good order, point UVs on edges are computed and points
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// are appended to theEdgesPointsList
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typedef std::set<const SMDS_MeshNode*> TNodeSet;
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void mergePoints (const bool uniteGroups);
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// Merge XYZ on edges and/or faces.
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void makePolyElements(const std::vector< const SMDS_MeshNode* >& theNodes,
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const bool toCreatePolygons,
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const bool toCreatePolyedrs);
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// prepare intermediate data to create Polygons and Polyhedrons
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void createElements(SMESH_Mesh* theMesh,
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const std::vector<const SMDS_MeshNode* >& theNodesVector,
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const std::list< std::list< int > > & theElemNodeIDs,
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const std::vector<const SMDS_MeshElement*>& theElements);
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// add elements to the mesh
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bool getFacesDefinition(const SMDS_MeshNode** theBndNodes,
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const int theNbBndNodes,
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const std::vector< const SMDS_MeshNode* >& theNodes,
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std::list< int >& theFaceDefs,
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std::vector<int>& theQuantity);
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// fill faces definition for a volume face defined by theBndNodes
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// return true if a face definition changes
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bool isReversed(const SMDS_MeshNode* theFirstNode,
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const std::list< int >& theIdsList) const;
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// check xyz ids order in theIdsList taking into account
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// theFirstNode on a link
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void clearMesh(SMESH_Mesh* theMesh) const;
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// clear mesh elements existing on myShape in theMesh
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static SMESHDS_SubMesh * getSubmeshWithElements(SMESH_Mesh* theMesh,
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const TopoDS_Shape& theShape);
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// return submesh containing elements bound to theShape in theMesh
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private:
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// fields
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typedef std::list< int > TElemDef; // element definition is its nodes ids
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bool myIs2D;
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std::vector< TPoint > myPoints;
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std::list< int > myKeyPointIDs;
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std::list< TElemDef > myElemPointIDs;
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ErrorCode myErrorCode;
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bool myIsComputed;
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bool myIsBoundaryPointsFound;
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TopoDS_Shape myShape;
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// all functions assure that shapes are indexed so that first go
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// ordered vertices, then ordered edge, then faces and maybe a shell
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TopTools_IndexedMapOfOrientedShape myShapeIDMap;
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std::map< int, std::list< TPoint* > > myShapeIDToPointsMap;
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// for the 2d case:
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// nb of key-points in each of pattern boundaries
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std::list< int > myNbKeyPntInBoundary;
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// to compute while applying to mesh elements, not to shapes
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std::vector<gp_XYZ> myXYZ; // XYZ of nodes to create
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std::list< TElemDef > myElemXYZIDs; // new elements definitions
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std::map< int, const SMDS_MeshNode*> myXYZIdToNodeMap; // map XYZ id to node of a refined element
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std::vector<const SMDS_MeshElement*> myElements; // refined elements
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std::vector<const SMDS_MeshNode*> myOrderedNodes;
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// elements to replace with polygon or polyhedron
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std::vector<const SMDS_MeshElement*> myPolyElems;
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// definitions of new poly elements
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std::list< TElemDef > myPolyElemXYZIDs;
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std::list< std::vector<int> > myPolyhedronQuantities;
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// map a boundary to XYZs on it;
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// a boundary (edge or face) is defined as a set of its nodes,
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// XYZs on a boundary are indices of myXYZ s
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std::map<TNodeSet,std::list<std::list<int> > > myIdsOnBoundary;
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// map XYZ id to element it is in
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std::map< int, std::list< TElemDef* > > myReverseConnectivity;
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};
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#endif
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