ReadNASTRAN.hpp

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    1 /**
    2  * MOAB, a Mesh-Oriented datABase, is a software component for creating,
    3  * storing and accessing finite element mesh data.
    4  *
    5  * Copyright 2004 Sandia Corporation.  Under the terms of Contract
    6  * DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government
    7  * retains certain rights in this software.
    8  *
    9  * This library is free software; you can redistribute it and/or
   10  * modify it under the terms of the GNU Lesser General Public
   11  * License as published by the Free Software Foundation; either
   12  * version 2.1 of the License, or (at your option) any later version.
   13  *
   14  */
   15  
   16 //-------------------------------------------------------------------------
   17 // Filename      : ReadNASTRAN.hpp
   18 //
   19 // Purpose       : NASTRAN file reader
   20 //
   21 // Creator       : Brandon Smith
   22 //
   23 // Date          : 08/2009
   24 //
   25 //-------------------------------------------------------------------------
   26  
   27 #ifndef READNASTRAN_HPP
   28 #define READNASTRAN_HPP
   29  
   30 #ifndef IS_BUILDING_MB
   31 #error "ReadNASTRAN.hpp isn't supposed to be included into an application"
   32 #endif
   33  
   34 #include <iostream>
   35 #include <fstream>
   36 #include <sstream>
   37 #include <vector>
   38  
   39 #include "moab/Interface.hpp"
   40 #include "moab/ReaderIface.hpp"
   41 #include "FileTokenizer.hpp"
   42 #include "moab/RangeMap.hpp"
   43  
   44 namespace moab
   45 {
   46  
   47 class ReadUtilIface;
   48  
   49 class ReadNASTRAN : public ReaderIface
   50 {
   51  
   52   public:
   53     // factory method
   54     static ReaderIface* factory( Interface* );
   55  
   56     ErrorCode load_file( const char* file_name,
   57                          const EntityHandle* file_set,
   58                          const FileOptions& opts,
   59                          const SubsetList* subset_list = 0,
   60                          const Tag* file_id_tag        = 0 );
   61     // constructor
   62     ReadNASTRAN( Interface* impl = NULL );
   63  
   64     // destructor
   65     virtual ~ReadNASTRAN();
   66  
   67     ErrorCode read_tag_values( const char* file_name,
   68                                const char* tag_name,
   69                                const FileOptions& opts,
   70                                std::vector< int >& tag_values_out,
   71                                const SubsetList* subset_list = 0 );
   72  
   73   protected:
   74   private:
   75     // read mesh interface
   76     ReadUtilIface* readMeshIface;
   77  
   78     // MOAB Interface
   79     Interface* MBI;
   80  
   81     RangeMap< int, EntityHandle > nodeIdMap, elemIdMap;
   82  
   83     enum line_format
   84     {
   85         SMALL_FIELD,
   86         LARGE_FIELD,
   87         FREE_FIELD
   88     };
   89  
   90     ErrorCode determine_line_format( const std::string& line, line_format& format );
   91  
   92     ErrorCode tokenize_line( const std::string& line, const line_format format, std::vector< std::string >& tokens );
   93  
   94     ErrorCode determine_entity_type( const std::string& token, EntityType& type );
   95  
   96     ErrorCode get_real( const std::string&, double& real );
   97  
   98     ErrorCode read_node( const std::vector< std::string >& tokens,
   99                          const bool debug,
  100                          double* coord_arrays[3],
  101                          int& node_id );
  102  
  103     ErrorCode read_element( const std::vector< std::string >& tokens,
  104                             std::vector< Range >& materials,
  105                             const EntityType element_type,
  106                             const bool debug );
  107  
  108     ErrorCode create_materials( const std::vector< Range >& materials );
  109  
  110     ErrorCode assign_ids( const Tag* file_id_tag );
  111 };
  112  
  113 }  // namespace moab
  114  
  115 #endif