ReadCGM.hpp

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/**
 * MOAB, a Mesh-Oriented datABase, is a software component for creating,
 * storing and accessing finite element mesh data.
 *
 * Copyright 2004 Sandia Corporation. Under the terms of Contract
 * DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government
 * retains certain rights in this software.
 *
 * 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, or (at your option) any later version.
 *
 */
 
//-------------------------------------------------------------------------
// Filename : ReadCGM.hpp
//
// Purpose : .step and .brep and .facet file reader
//
// Special Notes : Lots of code taken from cgm2moab implementation
//
// Creator : Jane Hu
//
// Date : 3/09
//
//-------------------------------------------------------------------------
 
#ifndef READCGM_HPP
#define READCGM_HPP
 
#include "moab/MOABConfig.h"
#ifndef MOAB_HAVE_CGM
#error "ReadCGM.hpp isn't supposed to be included without building CGM"
#endif
 
#include <string>
#include "moab/ReaderIface.hpp"
#include "RefEntityName.hpp"
 
namespace moab
{
 
class ReadUtilIface;
class GeomTopoTool;
 
class ReadCGM : public ReaderIface
{
 
 public:
 static ReaderIface* factory( Interface* );
 
 void tokenize( const std::string& str, std::vector< std::string >& tokens, const char* delimiters );
 
 //! load a CGM file
 // Supported FileOptions:
 // * FACET_NORMAL_TOLERANCE=<int> (default: 5)
 // * FACET_DISTANCE_TOLERANCE=<real> (default: 0.001)
 // * MAX_FACET_EDGE_LENGTH=<real> (default: 0.0)
 // * CGM_ATTRIBS=<yes|no> (default: no)
 ErrorCode load_file( const char* file_name,
 const EntityHandle* file_set,
 const FileOptions& opts,
 const SubsetList* subset_list = 0,
 const Tag* file_id_tag = 0 );
 
 ErrorCode read_tag_values( const char* file_name,
 const char* tag_name,
 const FileOptions& opts,
 std::vector< int >& tag_values_out,
 const SubsetList* subset_list = 0 );
 
 //! Constructor
 ReadCGM( Interface* impl = NULL );
 
 //! Destructor
 virtual ~ReadCGM();
 
 // access private vars
 int get_failed_curve_count();
 int get_failed_surface_count();
 
 private:
 ErrorCode set_options( const FileOptions& opts,
 int& norm_tol,
 double& faceting_tol,
 double& len_tol,
 bool& act_att,
 bool& verbose_warnings,
 bool& fatal_on_curves );
 
 ErrorCode create_entity_sets( std::map< RefEntity*, EntityHandle > ( &entmap )[5] );
 
 ErrorCode create_topology( std::map< RefEntity*, EntityHandle > ( &entitymap )[5] );
 
 ErrorCode store_surface_senses( std::map< RefEntity*, EntityHandle >& surface_map,
 std::map< RefEntity*, EntityHandle >& volume_map );
 
 ErrorCode store_curve_senses( std::map< RefEntity*, EntityHandle >& curve_map,
 std::map< RefEntity*, EntityHandle >& surface_map );
 
 ErrorCode store_groups( std::map< RefEntity*, EntityHandle > ( &entitymap )[5] );
 
 ErrorCode create_group_entsets( std::map< RefEntity*, EntityHandle >& group_map );
 
 ErrorCode store_group_content( std::map< RefEntity*, EntityHandle > ( &entitymap )[5] );
 
 void set_cgm_attributes( bool const act_attributes, bool const verbose );
 
 ErrorCode create_vertices( std::map< RefEntity*, EntityHandle >& vertex_map );
 
 ErrorCode create_curve_facets( std::map< RefEntity*, EntityHandle >& curve_map,
 std::map< RefEntity*, EntityHandle >& vertex_map,
 int norm_tol,
 double faceting_tol,
 bool verbose_warn = false,
 bool fatal_on_curves = false );
 
 ErrorCode create_surface_facets( std::map< RefEntity*, EntityHandle >& surface_map,
 std::map< RefEntity*, EntityHandle >& vertex_map,
 int norm_tol,
 double facet_tol,
 double length_tol );
 /**
 * Dumps the failed faceting information to screen
 */
 void dump_fail_counts();
 
 ReadUtilIface* readUtilIface;
 
 GeomTopoTool* myGeomTool;
 
 const char* get_geom_file_type( const char* filename );
 const char* get_geom_fptr_type( FILE* file );
 
 int is_cubit_file( FILE* file );
 int is_step_file( FILE* file );
 int is_iges_file( FILE* file );
 int is_occ_brep_file( FILE* file );
 int is_facet_file( FILE* file );
 
 //------------member variables ------------//
 
 //! interface instance
 Interface* mdbImpl;
 
 Tag geom_tag, id_tag, name_tag, category_tag, faceting_tol_tag, geometry_resabs_tag;
 
 int failed_curve_count; // the number of curves that failed to facet
 std::vector< int > failed_curves; // the curve ids of the curves that failed to facet
 
 int failed_surface_count; // the number of surfaces that have 0 facets
 std::vector< int > failed_surfaces; // the surface ids of the surfaces that have 0 facets
};
 
} // namespace moab
 
#endif