readChunk

uint readChunk(hid_t datasetId,  const  hsize_t *  offset,  void *  buffer,
                hid_t dxpl =  H5P_DEFAULT)

Reads a raw data chunk directly from a chunked dataset.

This function reads a chunk of raw data directly from storage, bypassing the filter pipeline. The data is returned in its stored form (e.g., compressed if compression was applied during write).

Parameters

`datasetId`	Dataset identifier (must be chunked)
`offset`	Logical position of the chunk within the dataset (array of coordinates)
`buffer`	Buffer to receive the chunk data (must be large enough)
`dxpl`	Dataset transfer property list (default: H5P_DEFAULT)

Returns

Filter mask indicating which filters were applied to the stored data

Throws

HDF5Exception if the read operation fails

Example:

// Read the chunk at position [0, 0] from a 2D chunked dataset
hsize_t[2] offset = [0, 0];
ubyte[] buffer = new ubyte[chunkSize];
auto filters = readChunk(dataset.handle(), offset.ptr, buffer.ptr);

uint readChunk(size_t N)(hid_t datasetId,  const  hsize_t[N]  offset,  void *  buffer,
                          hid_t dxpl =  H5P_DEFAULT)

Reads a raw data chunk directly from a chunked dataset (array overload).

Parameters

`datasetId`	Dataset identifier (must be chunked)
`offset`	Logical position of the chunk within the dataset
`buffer`	Buffer to receive the chunk data (must be large enough)
`dxpl`	Dataset transfer property list (default: H5P_DEFAULT)

Returns

Filter mask indicating which filters were applied to the stored data

Throws

HDF5Exception if the read operation fails