public Dictionary <string, string> TryReadDataTable(string datasetName)
{
Dictionary <string, string> result = null;
var subDsDic = ds.GetSubDatasets();
if (subDsDic.Count > 0)
{
H5ID h5FileId = H5F.open(fileName, H5F.ACC_RDONLY);
H5ID datasetId = H5D.open(h5FileId, datasetName);
H5ID typeId = H5D.get_type(datasetId);
H5ID spaceId = H5D.get_space(datasetId);
if (H5T.get_class(typeId) == H5T.class_t.COMPOUND)
{
int numCount = H5T.get_nmembers(typeId);
var size = H5T.get_size(typeId);
byte[] buffer = new byte[size.ToInt32()];
GCHandle hnd = GCHandle.Alloc(buffer, GCHandleType.Pinned);
int ndims = H5S.get_simple_extent_ndims(spaceId);
if (ndims == 1)
{
result = new Dictionary <string, string>();
H5D.read(datasetId, typeId, H5S.ALL, H5S.ALL, H5P.DEFAULT, hnd.AddrOfPinnedObject());
for (uint i = 0; i < numCount; i++)
{
string name = Marshal.PtrToStringAnsi(H5T.get_member_name(typeId, i));
int offset = H5T.get_member_offset(typeId, i).ToInt32();
H5ID subTypeId = H5T.get_member_type(typeId, i);
H5T.class_t typeClass = H5T.get_member_class(typeId, i);
string value = ReadBuffer(buffer, offset, typeClass, subTypeId);
result.Add(name, value);
H5T.close(subTypeId);
}
}
hnd.Free();
}
if (spaceId != 0)
{
H5S.close(spaceId);
}
if (typeId != 0)
{
H5T.close(typeId);
}
if (datasetId != 0)
{
H5D.close(datasetId);
}
if (h5FileId != 0)
{
H5F.close(h5FileId);
}
}
return(result);
}
static void Main_Read(string[] args)
{
int DATA_ARRAY_LENGTH = 5;
//var h5 = H5F.open(@"E:\HDF5\HDF5DotNet-src\examples\CSharpExample\CSharpExample1\table.h5", H5F.ACC_RDONLY);
//var h5 = H5F.open(@"D:\test.h5", H5F.ACC_RDONLY);
//var h5 = H5F.open(@"E:\HDF5\Hdf5DotnetTools-master\ToolTest\bin\Debug\table.h5", H5F.ACC_RDONLY);
var h5 = H5F.open(@"E:\HDF5\test_gzip.h5", H5F.ACC_RDONLY);
var dataset = H5D.open(h5, "trans_detail/20160929");
var spaceid = H5D.get_space(dataset);
var npoints = H5S.get_simple_extent_npoints(spaceid);
//var dims = H5S.get_simple_extent_dims(spaceid);
int rank = H5S.get_simple_extent_ndims(spaceid);
// 是不是不能用自己的type
var dtype = H5D.get_type(dataset);
var dtcls = H5T.get_class(dtype);
var size = H5T.get_size(dtype);
var sz = Marshal.SizeOf(typeof(ComType));
var dtype_n = H5T.get_nmembers(dtype);
for (uint i = 0; i < dtype_n; ++i)
{
var x = H5T.get_member_name(dtype, i);
var x4 = Marshal.PtrToStringAnsi(x);
var y = H5T.get_member_type(dtype, i);
var z = H5T.get_class(y);
var x1 = H5T.get_member_offset(dtype, i);
var x3 = H5T.get_size(y);
Console.WriteLine(x4);
Console.WriteLine(z);
Console.WriteLine(x1);
//var x2 = Marshal.OffsetOf(typeof(ComType), x4).ToInt32();
//Console.WriteLine(x2);
Console.WriteLine(x3);
}
int ss1 = Marshal.SizeOf(typeof(ComType));
IntPtr p = Marshal.AllocHGlobal(ss1 * 11);
H5D.read(dataset, dtype, H5S.ALL, H5S.ALL, H5P.DEFAULT, p);
var s = Marshal.PtrToStructure(p, typeof(ComType));
Console.WriteLine(s);
var s2 = Marshal.PtrToStructure(p + ss1, typeof(ComType));
Console.WriteLine(s2);
var s3 = Marshal.PtrToStructure(p + ss1 * 4, typeof(ComType));
Console.WriteLine(s3);
var s4 = Marshal.PtrToStructure(p + ss1 * 5, typeof(ComType));
Console.WriteLine(s4);
var s6 = Marshal.PtrToStructure(p + ss1 * 10, typeof(ComType));
Console.WriteLine(s6);
}
