[GRASS-user] Polar projection

Ken Mankoff mankoff at gmail.com
Wed Dec 30 18:06:24 PST 2020


Dear GRASS List,

Can someone suggest what setup to use (EPSG code? proj4 code?) to have the projection centered on the N. pole? I'm looking to create a graphic similar to this image in the Raster Gallery: https://grass.osgeo.org//images/gallery/raster/day_on_earth_N.png

If I set up a polar projection based on https://spatialreference.org/ref/sr-org/8243/ using:

grass -c ./G
g.proj -c proj4="+proj=stere +lat_0=90 +lat_ts=45 +lon_0=-170 +k=1 +x_0=0 +y_0=0 +ellps=WGS84 +datum=WGS84 +units=m +no_defs"

Things mostly work, but

d.grid -g 1:0 color=red

does not show latitude lines on most of the graphic (see attached). 

Thanks,

  -k.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: tmp_20201230_180557.png
Type: image/png
Size: 199972 bytes
Desc: not available
URL: <http://lists.osgeo.org/pipermail/grass-user/attachments/20201230/1c688494/attachment-0001.png>


More information about the grass-user mailing list