90 lines
3.2 KiB
Matlab
90 lines
3.2 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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% hdf_fielddata.time
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% hdf_fielddata.names
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% hdf_fielddata.values
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%
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% example: values of timestep 12:
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% hdf_fielddata.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.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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isOctave = exist('OCTAVE_VERSION','builtin') ~= 0;
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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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FD.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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TD.time(m) = double(info.GroupHierarchy.Groups(n).Groups(nGroup).Datasets(m).Attributes.Value);
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end
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end
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%search and read FD data
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if strcmp(info.GroupHierarchy.Groups(n).Groups(nGroup).Name,'/FieldData/FD')
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for m=1:numel(info.GroupHierarchy.Groups(n).Groups(nGroup).Datasets)
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FD.names{m} = info.GroupHierarchy.Groups(n).Groups(nGroup).Datasets(m).Name;
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FD.freq(m) = double(info.GroupHierarchy.Groups(n).Groups(nGroup).Datasets(m).Attributes.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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if (numel(TD.names)>0)
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hdf_fielddata.TD.names=TD.names;
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hdf_fielddata.TD.time=TD.time;
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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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if (numel(FD.names)>0)
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Nr_freq = numel(FD.names);
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for n=1:Nr_freq
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name = ['/FieldData/FD/f' int2str(n-1) '_real'];
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ind = find(strcmp(FD.names,name));
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if isempty(ind)
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ind = find(strcmp(FD.names,['/FieldData/FD/f' int2str(n-1)]));
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hdf_fielddata.FD.values{n} = double(hdf5read(file,FD.names{ind}));
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hdf_fielddata.FD.freq(n) = FD.freq(ind);
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else
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hdf_fielddata.FD.values{n} = double(hdf5read(file,FD.names{ind}));
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hdf_fielddata.FD.freq(n) = FD.freq(ind);
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name = ['/FieldData/FD/f' int2str(n-1) '_imag'];
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ind = find(strcmp(FD.names,name));
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hdf_fielddata.FD.values{n} = hdf_fielddata.FD.values{n} + 1j*double(hdf5read(file,FD.names{ind}));
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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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hdf_fielddata.names = fieldnames(hdf.FieldData);
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for n=1:numel(hdf_fielddata.names)
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hdf_fielddata.time(n) = str2double(hdf_fielddata.names{n}(2:end));
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hdf_fielddata.values{n} = hdf.FieldData.(hdf_fielddata.names{n});
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end
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