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Re: [sumo-user] Transform network coordinates
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Your plot is squished along the y-axis. Make sure that both axes have the same scaling in terms of pixels per meter.
how come when I use plot_net_dump.py() I get a bird-eye view of the same network, but when I plot the shapes myself just like
plotNet() function in the helpers, the view is angled?
![image.png](pnguidOxQ42mx.png)
The location element states that your network coordinates (including edge shapes) are already projected with UTM (the Universal Transverse Mercator) to meter values.
I have imported the network from OSM and did not define any projection specifications (I thas been a while, I can't be sure honestly about that). I have plotted x,y from net.edge.getShape() of sumolib for the plot.
but here is what the location element in the xml says:
<location netOffset="-689240.30,-5332378.01" convBoundary="0.00,0.00,3968.56,4377.92" origBoundary="11.543158,48.116111,11.598089,48.155686" projParameter="+proj=utm +zone=32 +ellps=WGS84 +datum=WGS84 +units=m +no_defs"/>
Any coordinates in a .net.xml file are supposed to be in m. The Value range of 0-4000 in you image certainly doesn't suggest WGS84.
It would help if you described from what kind of data your network was created and what it says in the <location> element at the start of your .net.xml file (the first child element after the opening <net> element).
Dear all,
how can I transform my network coordinates in order to get x,y in a mercator system? When I plot the network in python I get a WGS84 view but I prefer to get a flattened top view as in epsg:3875. I cannot convert from OSM as I have been fixing the network manually. Netconvert --proj.dhdn didn't help. Any tips are welcomed.
Thanks
Sasan
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