Re: [sumo-user] Custom Projection in NETCONVERT

[Sasan Amini <aminissn@xxxxxxxxx>]

Thanks! it works exactly as you suggested.
I don't how, but now it works on Windows, after a few restarts and a
windows update. On Linux, I still haven't checked your suggestion...

Best,
Sasan

On Tue, Dec 13, 2022 at 1:33 PM Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:
>
> A solution may be to specify the projection with a proj-string instead of an epsg code.
> https://epsg.io/25832   -> "+proj=utm +zone=32 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs"
>
> Important: the proj strings you can find often include "+type=crs" but this is currently not supported by netconvert. It should work if you remove this component.
> See https://github.com/eclipse/sumo/issues/12288
>
> For the windows error message, please check whether the proj db is present in %SUMO_HOME%/share/proj (also see https://github.com/eclipse/sumo/issues/8497)
> For the linux error message, a possible cause may be a mismatch in proj version and found database version (https://pyproj4.github.io/pyproj/stable/gotchas.html#internal-proj-error-sqlite-error-on-select)
>
> regards,
> Jakob
>
>
> Am Di., 13. Dez. 2022 um 09:50 Uhr schrieb Sasan Amini <aminissn@xxxxxxxxx>:
>>
>> Dear all,
>> I want to convert my SUMO network into another projection system
>> (EPSG:25832) and I set --proj EPSG:25832 in my netconvert
>> configuration. However, I keep getting the following error which I
>> think is caused by not finding proj.4  and its data package, even
>> though I think I have installed it:
>> proj_create: Cannot find proj.db
>> proj_create: no database context specified
>> Error: Could not build projection!
>> Quitting (on error).
>>
>> I tried it on my Linux computer where I think Proj is properly
>> installed and there I get still an error message saying:
>>
>> proj_create: SQLite error on SELECT name, coordinate_system_auth_name,
>> coordinate_system_code, geodetic_crs_auth_name, geodetic_crs_code,
>> conversion_auth_name, conversion_code, area_of_use_auth_name,
>> area_of_use_code, text_definition, deprecated FROM projected_crs WHERE
>> auth_name = ? AND code = ?: no such column: area_of_use_auth_name
>> Error: Could not build projection!
>> Quitting (on error).
>> I would appreciate any tips to make this work.
>>
>> Thanks,
>> Sasan
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