public int Open()
{
int id = -1;
try
{
int index = 0;
//int tag = (int)oid[0];
//if (tag == H4SDS.DFTAG_NDG_NETCDF)
//{
// index = (int)oid[1]; //HDFLibrary.SDidtoref(id) fails for netCDF
//}
//else
//{
index = HDF4API.SDreftoindex(_sd_id, _sds_ref);//(int)oid[1]
//}
id = HDF4Helper.SDselect(_sd_id, index);
}
catch (Exception ex)
{
id = -1;
}
return(id);
}