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[Octave-patch-tracker] [patch #9280] Add data cursor functionality in pl

From: Reik Red
Subject: [Octave-patch-tracker] [patch #9280] Add data cursor functionality in plots
Date: Sat, 12 Sep 2020 14:17:06 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:80.0) Gecko/20100101 Firefox/80.0

Follow-up Comment #16, patch #9280 (project octave):

Good stuff! I have some comments and questions:

1. datacursor cannot be moved/adjusted/deleted after initial placement? Would
like to be able to unstick and move and delete. Need this fairly badly.

2. there is no way to add a user-defined function to display data values in a
different format, e.g. as YYYY-MM-DD using datestr()? Note that <nrjank>
comment1 below hints at some such matlab functionality that would be
desirable, namely the UpdateFcn — Callback function that formats data tip
text. Really need this.

For a concrete example off how matlab can do this, see

3. datacursor does not react to a changing zoom level, but rather stays in a
fixed position on the canvas? This is maybe a bit tricky to fix, but "would be

4. Could we get just a few lines of a manual to explain what each mouse button
is supposed to do, etc)?

Thanks, datacursor is a very useful addition to Octave.


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