Keep in mind that if you go with a variable-length type, the data cannot be 
compressed so your file sizes will be larger.

Dana Robinson
Software Engineer
The HDF Group

From: Hdf-forum [mailto:hdf-forum-boun...@lists.hdfgroup.org] On Behalf Of 
Steven Walton
Sent: Monday, October 17, 2016 12:35 PM
To: HDF Users Discussion List <hdf-forum@lists.hdfgroup.org>
Subject: [Hdf-forum] Irregular 2D array write (C++)

So I'm wondering if there is a good way to write an irregular shaped 2D array 
into hdf5. And example of this would be like storing vtk node connections for 
an unstructured grid. First number noting the cell type and the next numbers 
denoting the nodes.

9 23 41 54 12
9 46 29 19 60
5 93 18 58
5 29 58 17
9 50 38 58 95
So the array has some rows that are length 5 and others that are length 4 (or 
arbitrary). I understand how to do this with C++ vectors and push_back, but 
those don't create contiguous arrays. Is there another way to create this in a 
way that HDF would accept?
-Steven
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