MOAB: Mesh Oriented datABase  (version 5.3.1)
Tree.cpp
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00001 #include "moab/Tree.hpp"
00002 #include "moab/Range.hpp"
00003 #include "moab/Interface.hpp"
00004 
00005 #include <limits>
00006 
00007 namespace moab
00008 {
00009 ErrorCode Tree::parse_common_options( FileOptions& options )
00010 {
00011     double tmp_dbl;
00012     int tmp_int;
00013     // MAX_PER_LEAF: max entities per leaf; default = 6
00014     ErrorCode rval = options.get_int_option( "MAX_PER_LEAF", tmp_int );
00015     if( MB_SUCCESS == rval ) maxPerLeaf = std::max( tmp_int, 1 );
00016 
00017     // MAX_DEPTH: max depth of the tree; default = 30
00018     rval = options.get_int_option( "MAX_DEPTH", tmp_int );
00019     if( MB_SUCCESS == rval ) maxDepth = tmp_int;
00020     if( maxDepth < 1 ) maxDepth = std::numeric_limits< unsigned >::max();
00021 
00022     // MIN_WIDTH: minimum width of box, used like a tolerance; default = 1.0e-10
00023     rval = options.get_real_option( "MIN_WIDTH", tmp_dbl );
00024     if( MB_SUCCESS == rval ) minWidth = tmp_dbl;
00025 
00026     // MESHSET_FLAGS: flags passed into meshset creation for tree nodes; should be a value from
00027     //          ENTITY_SET_PROPERTY (see Types.hpp); default = MESHSET_SET
00028     rval = options.get_int_option( "MESHSET_FLAGS", tmp_int );
00029     if( MB_SUCCESS == rval && 0 <= tmp_int )
00030         meshsetFlags = (unsigned)tmp_int;
00031     else if( 0 > tmp_int )
00032         return MB_FAILURE;
00033 
00034     // CLEAN_UP: if false, do not delete tree sets upon tree class destruction; default = true
00035     bool tmp_bool;
00036     rval = options.get_toggle_option( "CLEAN_UP", true, tmp_bool );
00037     if( MB_SUCCESS == rval && !tmp_bool ) cleanUp = false;
00038 
00039     // TAG_NAME: tag name to store tree information on tree nodes; default = "AKDTree"
00040     std::string tmp_str;
00041     rval = options.get_str_option( "TAG_NAME", tmp_str );
00042     if( MB_SUCCESS == rval ) boxTagName = tmp_str;
00043 
00044     return MB_SUCCESS;
00045 }
00046 
00047 ErrorCode Tree::find_all_trees( Range& results )
00048 {
00049     Tag tag        = get_box_tag();
00050     ErrorCode rval = moab()->get_entities_by_type_and_tag( 0, MBENTITYSET, &tag, 0, 1, results );
00051     if( MB_SUCCESS != rval || results.empty() ) return rval;
00052     std::vector< BoundBox > boxes( results.size() );
00053     rval = moab()->tag_get_data( tag, results, &boxes[0] );
00054     if( MB_SUCCESS != rval ) return rval;
00055     for( std::vector< BoundBox >::iterator vit = boxes.begin(); vit != boxes.end(); ++vit )
00056         boundBox.update( *vit );
00057 
00058     if( results.size() == 1 ) myRoot = *results.begin();
00059 
00060     return MB_SUCCESS;
00061 }
00062 
00063 ErrorCode Tree::create_root( const double box_min[3], const double box_max[3], EntityHandle& root_handle )
00064 {
00065     ErrorCode rval = mbImpl->create_meshset( meshsetFlags, root_handle );
00066     if( MB_SUCCESS != rval ) return rval;
00067 
00068     myRoot = root_handle;
00069 
00070     double box_tag[6];
00071     for( int i = 0; i < 3; i++ )
00072     {
00073         box_tag[i]     = box_min[i];
00074         box_tag[3 + i] = box_max[i];
00075     }
00076     rval = mbImpl->tag_set_data( get_box_tag(), &root_handle, 1, box_tag );
00077     if( MB_SUCCESS != rval ) return rval;
00078 
00079     boundBox.bMin = box_min;
00080     boundBox.bMax = box_max;
00081 
00082     return MB_SUCCESS;
00083 }
00084 
00085 ErrorCode Tree::delete_tree_sets()
00086 {
00087     if( !myRoot ) return MB_SUCCESS;
00088 
00089     ErrorCode rval;
00090     std::vector< EntityHandle > children, dead_sets, current_sets;
00091     current_sets.push_back( myRoot );
00092     while( !current_sets.empty() )
00093     {
00094         EntityHandle set = current_sets.back();
00095         current_sets.pop_back();
00096         dead_sets.push_back( set );
00097         rval = mbImpl->get_child_meshsets( set, children );
00098         if( MB_SUCCESS != rval ) return rval;
00099         std::copy( children.begin(), children.end(), std::back_inserter( current_sets ) );
00100         children.clear();
00101     }
00102 
00103     rval = mbImpl->tag_delete_data( boxTag, &myRoot, 1 );
00104     if( MB_SUCCESS != rval ) return rval;
00105 
00106     rval = mbImpl->delete_entities( &dead_sets[0], dead_sets.size() );
00107     if( MB_SUCCESS != rval ) return rval;
00108 
00109     myRoot = 0;
00110 
00111     return MB_SUCCESS;
00112 }
00113 
00114 }  // namespace moab
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