[GRASS-user] Polar projection

[Ken Mankoff]

Hi Markus,

On 2020-12-31 at 08:26 -08, Markus Neteler <neteler at osgeo.org> wrote...
> On Thu, Dec 31, 2020 at 3:06 AM Ken Mankoff <mankoff at gmail.com> wrote:
>> d.grid -g 1:0 color=red
>>
>> does not show latitude lines on most of the graphic (see attached).
>
> I managed to generate it with
>
> Preparation of a 10 degree grid [in EPSG:4326]:
> v.mkgrid grid=36,18 map=grid_10deg
>
> [v.proj from 4326 to polar (3995 or 3413)]
>
> The resulting map looks as attached (hope I didn't forget to copy a
> command here). Indeed, d.grid doesn't looks as expected

Your command list was helpful. Yes, things work fine when importing a grid generated in EPSG:4326 to EPSG:3995. Oddly, importing to EPSG:3413 has a different issue (included in the same bug report for now).

> d.grid 10 -w .. is incomplete. Worth a bug report, IMO.

https://github.com/OSGeo/grass/issues/1224

Thanks,

  -k.