labels offset from actual locations when re-running plot-constellations

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Don Samuels

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Jun 7, 2024, 12:00:13 PMJun 7
to astrometry, Dustin Lang
Dustin

I have been re-running just plot-constellations to try and get some more labelling and a font size more amenable to my images. However, when I re-run with this command:

/usr/bin/pnmscale 0.50000 $astrotempfile | /usr/bin/plot-constellations -v -w ./$1.wcs -i - -s 0.250000 -N -B -C -f 10 -n 4  -o ./$1-ngc.png

I notice that the labels and circles are now offset and scaled in mag from the original png generated with solve-field

Here is just solve-field:
image.png

and here is with the redo of plot-constellations:
image.png

What am I doing wrong?
--
Thanks
Don

Dustin Lang

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Jun 7, 2024, 12:02:42 PMJun 7
to Don Samuels, astrometry
Well, it looks like you're scaling your image by 0.5 but then scaling the annotation by 0.25...
   [-s <scale>]: scale image coordinates by this value before plotting.

Don Samuels

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Jun 8, 2024, 2:42:36 PMJun 8
to Dustin Lang, astrometry
Scaling was the issue. Thank you again Dustin!!!
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Thanks
Don
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