示例#1
0
        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);
        }
示例#2
0
        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);
        }