MOAB: Mesh Oriented datABase  (version 5.4.0)
WriteVtk.hpp
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00001 /**
00002  * MOAB, a Mesh-Oriented datABase, is a software component for creating,
00003  * storing and accessing finite element mesh data.
00004  *
00005  * Copyright 2004 Sandia Corporation.  Under the terms of Contract
00006  * DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government
00007  * retains certain rights in this software.
00008  *
00009  * This library is free software; you can redistribute it and/or
00010  * modify it under the terms of the GNU Lesser General Public
00011  * License as published by the Free Software Foundation; either
00012  * version 2.1 of the License, or (at your option) any later version.
00013  *
00014  */
00015 
00016 #ifndef WRITE_VTK_HPP
00017 #define WRITE_VTK_HPP
00018 
00019 #include <iosfwd>
00020 
00021 #include "moab/Forward.hpp"
00022 #include "moab/WriterIface.hpp"
00023 
00024 namespace moab
00025 {
00026 
00027 class WriteUtilIface;
00028 
00029 // class MB_DLL_EXPORT WriteVtk : public WriterIface
00030 class WriteVtk : public WriterIface
00031 {
00032 
00033   public:
00034     //! Constructor
00035     WriteVtk( Interface* impl );
00036 
00037     //! Destructor
00038     virtual ~WriteVtk();
00039 
00040     static WriterIface* factory( Interface* );
00041 
00042     //! writes out a file
00043     ErrorCode write_file( const char* file_name,
00044                           const bool overwrite,
00045                           const FileOptions& opts,
00046                           const EntityHandle* output_list,
00047                           const int num_sets,
00048                           const std::vector< std::string >& qa_list,
00049                           const Tag* tag_list  = NULL,
00050                           int num_tags         = 0,
00051                           int export_dimension = 3 );
00052 
00053   private:
00054     //! Get entities to write, given set list passed to \ref write_file
00055     ErrorCode gather_mesh( const EntityHandle* set_list, int num_sets, Range& nodes, Range& elems );
00056 
00057     //! Write 4-line VTK file header
00058     ErrorCode write_header( std::ostream& stream );
00059 
00060     //! Write node coordinates
00061     ErrorCode write_nodes( std::ostream& stream, const Range& nodes );
00062 
00063     //! Write element connectivity
00064     ErrorCode write_elems( std::ostream& stream, const Range& nodes, const Range& elems );
00065 
00066     //! Write all tags on either the list of nodes or the list of elements
00067     ErrorCode write_tags( std::ostream& stream, bool nodes, const Range& entities, const Tag* tag_list, int num_tags );
00068 
00069     //! Write the tad description for the passed tag and call the template
00070     //! \ref write_tag function to write the tag data.
00071     ErrorCode write_tag( std::ostream& stream, Tag tag, const Range& entities, const Range& tagged_entities );
00072 
00073     //! Write tag data
00074     template < typename T >
00075     ErrorCode write_tag( std::ostream& stream,
00076                          Tag tag,
00077                          const Range& entities,
00078                          const Range& tagged_entities,
00079                          const int );
00080 
00081     ErrorCode write_bit_tag( std::ostream& stream, Tag tag, const Range& entities, const Range& tagged_entities );
00082     //! Write a list of values
00083     template < typename T >
00084     void write_data( std::ostream& stream, const std::vector< T >& data, unsigned vals_per_tag );
00085 
00086     Interface* mbImpl;
00087     WriteUtilIface* writeTool;
00088 
00089     bool mStrict;  // If true, do not write data that cannot fit in strict VTK file format.
00090     int freeNodes;
00091     bool createOneNodeCells;
00092 };
00093 
00094 }  // namespace moab
00095 
00096 #endif
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