[Dachs-support] Two questions on datalinking
Yan Grange
grange at astron.nl
Wed Aug 25 12:53:56 CEST 2021
Hi Markus,
Thanks for your previous answer(s)! I have another two questions I am
struggling with a bit. As you know my data are all external. Since all
data sets will have some provenance data that is only available on
request, and in an external catalogue, I'd like to link to entries in
that catalogue from dlmeta entries of the data.
So far so good but there are a few things that I cannot really work out,
or at the very least would like some advice on from people who actually
know uch better than me how choices I make on my end affect users:
1. Is there a way to communicate the information from the import to the
datalink service, without necessarily putting it in a table that is
visible? This is not secret information, but I just feel I do not want
to confuse the casual visitor by having a table that basically stitches
PIDs together (or links). One thing I was thinking of is using a (few)
hidden column(s), or columns with very high verbosity. But maybe I am
making the problem too hard and there is an easy fix here.
2. The main download link of the data then. I think I have three choices
(basically what I want to bind the path to). The dlmeta, the dlget or a
direct link to the remote data set. I find it hard to understand how
much of a difference that makes in practice and whether or not there
should be a preference for using either. Will Aladin be able to handle
dlmeta links more or less transparently for instance?
Cheers,
Yan
--
My working schedule likely differs from yours. Do not feel compelled to read or reply to my email(s) outside your office hours.
Yan Grange
SDC software developer
ASTRON
het Nederlands instituut voor radioastronomie
the Netherlands Institute for Radio Astronomy
Oude Hogeveensedijk 4
Kamer/room 1.58
7991 PD, Dwingeloo
Nederland/The Netherlands
Tel.: (+31) (0)521595796
Fax : (+31) (0)521595101
Skype: ygg-skypename
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