public void FirstDataset(Array dataset)
{
if (GroupId <= 0)
{
throw new Hdf5Exception("cannot call FirstDataset because group or file couldn't be created");
}
if (Hdf5Utils.GetRealName(GroupId, Datasetname, string.Empty).valid)
{
throw new Hdf5Exception("cannot call FirstDataset because dataset already exists");
}
Rank = dataset.Rank;
_currentDims = GetDims(dataset);
/* Create the data space with unlimited dimensions. */
_spaceId = H5S.create_simple(Rank, _currentDims, _maxDims);
/* Modify dataset creation properties, i.e. enable chunking */
_propId = H5P.create(H5P.DATASET_CREATE);
_status = H5P.set_chunk(_propId, Rank, _chunkDims);
/* Create a new dataset within the file using chunk creation properties. */
_datasetId = H5D.create(GroupId, Hdf5Utils.NormalizedName(Datasetname), _datatype, _spaceId, H5P.DEFAULT, _propId);
/* Write data to dataset */
GCHandle hnd = GCHandle.Alloc(dataset, GCHandleType.Pinned);
_status = H5D.write(_datasetId, _datatype, H5S.ALL, H5S.ALL, H5P.DEFAULT,
hnd.AddrOfPinnedObject());
if (_status < 0)
{
Hdf5Utils.LogError("Unable to write dataset");
}
hnd.Free();
H5S.close(_spaceId);
_spaceId = -1;
}