Hi Sarah,
I have had problems with circle symbols with sizeunit meters in the
past. So I presented some of my alternative solutions i a talk at
FOSS4G last year. Here is a link to the presentation:
https://github.com/LarsSchy/Mapserver-Circles/blob/main/MapServer-Circles.pdf
The video is here: https://www.youtube.com/watch?v=vlagaZLxekg
Some example code can be found at:
https://github.com/LarsSchy/Mapserver-Circles.
I do agree that there exists some problem with circle symbols with size
unit meters, that I really can't explain
Have fun!
/Lars Schylberg
Den 2022-09-05 kl. 13:44, skrev Sarah Huber:
Hallo,
I configured a point layer with "circle" symbol and sizeunits meters.
The circles should have the same size in real world units (meter) for
all zoom levels, for example 100 m.
This works for most zoom levels, but when I zoom in closely the
circles get smaller (< 100 m).
I don't have configured any maxsize or minsize for the layer.
How can I configure the layer to have the same size in meters for all
zoom levels? Like it behaves with polygons?
My layer definition in the mapfile: https://pastebin.com/JVWBvScP
<https://pastebin.com/JVWBvScP>
Example screenshots of the layer (as WMS in QGIS):
Circle with correct size (100 m), same as square:
https://pasteboard.co/VWmur23PHiir.jpg
<https://pasteboard.co/VWmur23PHiir.jpg>
Circle smaller than 100 m (and smaller than square):
https://pasteboard.co/SFJZMJgp4j8k.jpg
<https://pasteboard.co/SFJZMJgp4j8k.jpg>
Thanks
Sarah
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