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<div class="moz-cite-prefix">On 11/28/25 08:10, Brent Wood wrote:<br>
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cite="mid:SY7P300MB076198EF60B1B84AA65AE97BA1DFA@SY7P300MB0761.AUSP300.PROD.OUTLOOK.COM">
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Hi & welcome...</div>
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I find this aspect is better addressed as a data management
issue rather that a labelling one.</div>
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If your data is managed in database tables (Postgis, Spatialite,
MariaDB/MySQL are the obvious free ones that work well with
QGIS) then appending new points to existing lines and making
lines from points is simple spatial data management. You can
also set up a "view" - essentially a stored query acting like a
physical table of data - returning, for example, the last point
in a linestring.</div>
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Thank you Brent for taking the time to reply.<br>
<br>
In the past three weeks since my first posting I managed to collect,
over a ten hour period, roughly 250 aeroplane positions. I used
Python to extract the data needed and assemble the result into a CSV
file. This doesn't occur in real time.<br>
<br>
Many of the aeroplanes were only received once and so I wasn't able
to plot a track for those aeroplanes and not all reception reports
were complete resulting in track errors.<br>
<br>
I'm only vaguely familiar with SQL and haven't used it, or even
thought about it, since my university days and I'm now in my late
seventies. I'm not sure, at the moment, how a database would benefit
my project but I'll give it some more thought. Maybe I can feed live
data into MySql? Now, after a few minutes of thought, I may be able
to feed an SQL query into QGIS in real time. Another project to play
with.<br>
<br>
<pre class="moz-signature" cols="72">--
Regards,
Phil</pre>
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