120 lines
4.2 KiB
Matlab
120 lines
4.2 KiB
Matlab
function hdf_fielddata = ReadHDF5FieldData(file)
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% function hdf_fielddata = ReadHDF5FieldData(file)
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%
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% returns:
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% % time domain data (if exist)
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% hdf_fielddata.TD.time
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% hdf_fielddata.TD.names
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% hdf_fielddata.TD.values
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% hdf_fielddata.TD.DataType (0 --> real value data)
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%
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% % frequency domain data (if exist)
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% hdf_fielddata.FD.frequency
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% hdf_fielddata.FD.values
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% hdf_fielddata.FD.DataType (0 / 1 --> real / complex value data)
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%
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% example: values of timestep 12:
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% hdf_fielddata.TD.values{12}: array (x,y,z,polarization)
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%
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% plot z-field component along y-direction for timestep 12:
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% plot( hdf_fielddata.TD.values{12}(1,:,1,3) )
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%
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% openEMS matlab interface
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% -----------------------
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% author: Thorsten Liebig
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%
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% See also ReadHDF5Mesh ReadHDF5Dump
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if isOctave
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hdf_fielddata = ReadHDF5FieldData_octave(file);
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return
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end
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info = hdf5info(file);
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TD.names = {};
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hdf_fielddata = [];
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for n=1:numel(info.GroupHierarchy.Groups)
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if strcmp(info.GroupHierarchy.Groups(n).Name,'/FieldData')
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%found /FieldData, look for either TD or FD data
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for nGroup=1:numel(info.GroupHierarchy.Groups(n).Groups)
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%search and read TD data
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if strcmp(info.GroupHierarchy.Groups(n).Groups(nGroup).Name,'/FieldData/TD')
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for m=1:numel(info.GroupHierarchy.Groups(n).Groups(nGroup).Datasets)
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TD.names{m} = info.GroupHierarchy.Groups(n).Groups(nGroup).Datasets(m).Name;
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for a = 1:numel(info.GroupHierarchy.Groups(n).Groups(nGroup).Datasets(m).Attributes)
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str = regexp(info.GroupHierarchy.Groups(n).Groups(nGroup).Datasets(m).Attributes(a).Name,'\w/*\w*','match');
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TD.(str{end})(m) = double(info.GroupHierarchy.Groups(n).Groups(nGroup).Datasets(m).Attributes(a).Value);
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end
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end
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end
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end
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end
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end
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if (numel(TD.names)>0)
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hdf_fielddata.TD=TD;
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hdf_fielddata.TD.DataType = 0; %real value data
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for n=1:numel(hdf_fielddata.TD.names)
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hdf_fielddata.TD.values{n} = double(hdf5read(file,hdf_fielddata.TD.names{n}));
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end
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end
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% extract FD data
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try
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hdf_fielddata.FD.frequency = ReadHDF5Attribute(file,'/FieldData/FD','frequency');
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catch err
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% disp(err)
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return
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end
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for n=1:numel(hdf_fielddata.FD.frequency)
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try
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hdf_fielddata.FD.values{n} = double(hdf5read(file,['/FieldData/FD/f' int2str(n-1) '_real']) + 1i*hdf5read(file,['/FieldData/FD/f' int2str(n-1) '_imag']));
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hdf_fielddata.FD.DataType = 1; %complex value data
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catch
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try
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hdf_fielddata.FD.values{n} = double(hdf5read(file,['/FieldData/FD/f' int2str(n-1)]));
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hdf_fielddata.FD.DataType = 0; %real value data
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catch
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error('openEMS:ReadHDF5FieldData','FD data invalid...')
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end
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end
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end
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function hdf_fielddata = ReadHDF5FieldData_octave(file)
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hdf = load( '-hdf5', file );
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if ~isfield(hdf,'FieldData')
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error('no field data found')
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end
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if isfield(hdf.FieldData,'TD')
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%read TD data
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hdf_fielddata_names = fieldnames(hdf.FieldData.TD);
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for n=1:numel(hdf_fielddata_names)
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hdf_fielddata.TD.values{n} = hdf.FieldData.TD.(hdf_fielddata_names{n});
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hdf_fielddata.TD.names{n} = ['/FieldData/TD/' hdf_fielddata_names{n}(2:end)];
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hdf_fielddata.TD.time(n) = ReadHDF5Attribute(file, hdf_fielddata.TD.names{n},'time');
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end
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hdf_fielddata.TD.DataType = 0; %real value data
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end
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if isfield(hdf.FieldData,'FD')
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%read FD data
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hdf_fielddata.FD.frequency = ReadHDF5Attribute(file,'/FieldData/FD/','frequency');
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try %try reading complex data
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for n=1:numel(hdf_fielddata.FD.frequency)
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hdf_fielddata.FD.values{n} = double(hdf.FieldData.FD.(['f' int2str(n-1) '_real']) +1i*hdf.FieldData.FD.(['f' int2str(n-1) '_imag']) );
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end
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hdf_fielddata.FD.DataType = 1; %complex value data
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catch
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try %try reading real value data
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for n=1:numel(hdf_fielddata.FD.frequency)
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hdf_fielddata.FD.values{n} = double(hdf.FieldData.FD.(['f' int2str(n-1)]));
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end
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hdf_fielddata.FD.DataType = 0; %real value data
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catch
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error('openEMS:ReadHDF5FieldData','FD data invalid...')
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end
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end
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end
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