Page History

...

during the second event, the Translator would throw an error. Both of these arrays are supposed to go into an hdf5 path that ends with

/ndarray_float32_2/noSrc__mykey

but the underlying hdf5 type for this dataset has been set to a 2D array with dimensions (3,4). At present, one can start a new dataset during the second event

...

event.put(numpy.zeros((3,4),"translate_vlen:mykey")        # event one
event.put(numpy.zeros((5,4),"translate_vlen:mykey")        # event two

Both Now both ndarrays will go to the same dataset, and the underlying hdf5 path as before, type changes to a vlen type of 1D arrays with dimension 4. The type name in the hdf5 path changes to indicate vlen, it will be

/ndarray_float32_2_vlen/noSrc__mykey

...

Registering New Types
C++ modules can register new types. Note, this is an advanced feature that requires familiarity with the Hdf5 programming in C.  Presently this feature is only suitable for simple types. An example is found in the file Translator/src/TestModuleNewWriter.cpp. We go through the example here. First a module will define the data type that they want to store. This type is a simple C struct of native types in the C language:
...