public Dictionary <string, string> GetAttributes(string datasetName)
{
StringBuilder sds_name = new StringBuilder();
int rank = 0;
int[] dimsizes = new int[MAX_DIMSIZES];
HDF4Helper.DataTypeDefinitions datatype;
int id = HDF4Helper.SDstart(_fname, HDF4Helper.AccessCodes.DFACC_READ);
try
{
int dsIndex = HDF4Helper.SDnametoindex(id, datasetName);
int dsObjId = HDF4Helper.SDselect(id, dsIndex);
int attCount = 0;
HDF4Helper.SDgetinfo(dsObjId, sds_name, out rank, dimsizes, out datatype, out attCount);
//int dsCount = 0;
//HDF4Helper.SDfileinfo(id, out dsCount, out attCount);
if (attCount == 0)
{
return(null);
}
return(GetAttributes(dsObjId, attCount));
}
finally
{
HDF4Helper.SDend(id);
}
}
public bool GetDataSizeInfos(string datasetName, out int rank, out int[] dimsizes, out HDF4Helper.DataTypeDefinitions hdf4Type, out Type dataType, out int dataTypeSize)
{
StringBuilder sds_name = new StringBuilder();
rank = 0;
dimsizes = new int[MAX_DIMSIZES];
dataType = typeof(UInt16);
hdf4Type = HDF4Helper.DataTypeDefinitions.DFNT_NUINT16;
dataTypeSize = 0;
int id = HDF4Helper.SDstart(_fname, HDF4Helper.AccessCodes.DFACC_READ);
try
{
int dsIndex = HDF4Helper.SDnametoindex(id, datasetName);
int dsObjId = HDF4Helper.SDselect(id, dsIndex);
int attCount = 0;
HDF4Helper.SDgetinfo(dsObjId, sds_name, out rank, dimsizes, out hdf4Type, out attCount);
if (rank != 0)
{
dataType = GetTypeFromHDF4DataType(hdf4Type, out dataTypeSize);
return(true);
}
}
finally
{
HDF4Helper.SDend(id);
}
return(false);
}
public string GetAttributeValue(string datasetName, string attributeName)
{
int id = HDF4Helper.SDstart(_fname, HDF4Helper.AccessCodes.DFACC_READ);
try
{
int dsIndex = HDF4Helper.SDnametoindex(id, datasetName);
int dsObjId = HDF4Helper.SDselect(id, dsIndex);
int attIndex = HDF4Helper.SDfindattr(dsObjId, attributeName);
return(ReadAttribute(dsObjId, attIndex));
}
finally
{
HDF4Helper.SDend(id);
}
}
private static string[] ReadSDinfo(int sd_id, int num_datasets)
{
string[] dsNames = new string[num_datasets];
for (int dsIndex = 0; dsIndex < num_datasets; dsIndex++)
{
int sds_id = HDF4Helper.SDselect(sd_id, dsIndex);
try
{
StringBuilder sds_name = new StringBuilder(256);
int rank;
int[] dimsizes = new int[256];
GeoDo.HDF4.HDF4Helper.DataTypeDefinitions data_type;
int num_attrs;
HDF4Helper.SDgetinfo(sds_id, sds_name, out rank, dimsizes, out data_type, out num_attrs);
dsNames[dsIndex] = sds_name.ToString();
}
finally
{
HDF4Helper.SDend(sds_id);
}
}
return(dsNames);
}