[PROJ] How to match a proj string to the db?

Even Rouault even.rouault at spatialys.com
Sun May 12 18:54:30 PDT 2019


On dimanche 12 mai 2019 20:25:52 CEST Nyall Dawson wrote:
> PJ* crs = proj_create( 0, "+proj=longlat +datum=WGS84 +no_defs +type=crs")
> if ( PJ_OBJ_LIST *crsList = proj_identify( 0, crs, nullptr, nullptr,
> &confidence ) )
> {
>  // never reached, regardless of proj string
> }

Hum, works for me. Is PROJ_LIB properly set ?


> What about the "hard-coded" part of the text? What exactly does this
> mean? I can't see anyway to specify this list of hard-coded
> candidates.

No, it means that there are a few CRS whose definitions is hard coded and so 
identify() might be able to identiy them even if the database is not 
available. But you can ignore that implementation detail.

-- 
Spatialys - Geospatial professional services
http://www.spatialys.com


More information about the PROJ mailing list