[PROJ] Bug in unit conversion using cs2cs and transformations from registries?

[Xavier Collilieux]

Dear Even,
Thank you for your prompt reply.
And congratulations to all developers for this software,
Best regards,

-          Xavier

De : Even Rouault [mailto:even.rouault at spatialys.com]
Envoyé : mercredi 5 août 2020 13:25
À : Xavier Collilieux
Cc : proj at lists.osgeo.org
Objet : Re: [PROJ] Bug in unit conversion using cs2cs and transformations from registries?


Arg wrong list...



---------- Forwarded Message ----------



Subject: Re: [gdal-dev] [PROJ] Bug in unit conversion using cs2cs and transformations from registries?

Date: mercredi 5 août 2020, 12:52:14 CEST

From: Even Rouault <even.rouault at spatialys.com>

To: Xavier Collilieux <xavier.collilieux at ensg.eu>

CC: gdal-dev at lists.osgeo.org



(Adding back the list in CC)



>

> Thank you for your quick reply and valuable comments. I should have read the

> documentation more deeply, this is indeed written in the documentation of

> cs2cs at the end but I was so sure that cs2cs behaves as projinfo would

> tell that I missed it. * ***** ***** ** ** ***** ******* **** ***** ** ***

> **** **** *** ************** **** ******** lists.

>

> Another questions, I did not find the answer in the documentation. In case

> of multiple available transformations, do I have a way with cs2cs to tell

> the one I want please? For example "projinfo -s EPSG:4326 -t ESRI:102586"

> provides two output transformations. Do I have the possibility to tell to

> cs2cs that I want the second one? If said differently, instead of giving

> input and ouput crs to cs2cs, can I provide only the transformation name or

> provide the transformation name in addition to the input and output CRS?

> Here "Inverse of NTF to WGS 84 (1) + NTF_Lambert_Zone_II" for example, the

> second field I got using --summary option (= WKT2 CONCATENATEDOPERATION

> name).



You have to use cct with the PROJ pipeline emitted by projinfo to control precisely which

transformation you want to use



Even



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Spatialys - Geospatial professional services

http://www.spatialys.com



-----------------------------------------

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http://www.spatialys.com
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