Hi, after a quick investigation (no time for going more in depth) it seems that there is some issue in Proj v.6 itself.
Therion internally generates the following transformation for Benedikt's example: +proj=pipeline +step +inv +init=epsg:31258 +step +init=epsg:31258 (source and destination CS are the same) When processed outside of therion using proj's command line utility, you get the same error as given by therion: $ proj +proj=pipeline +step +inv +init=epsg:31258 +step +init=epsg:31258 Rel. 6.2.0, September 1st, 2019 <proj>: projection initialization failure cause: no arguments in initialization list program abnormally terminated Currently I have no Proj v.5 environment to test this example, but I guess it would work -- could anybody check it? Proj's other utility cs2cs acccepts this init string in version 6.2.0 without any issue, though: $ cs2cs +init=epsg:31258 +to +init=epsg:31258 @Olly, Wookey: While investigating this issue I noticed that a dependency on libsqlite3-tcl should be added in Debian if Proj library version 6 is used. M. On Fri, Sep 13, 2019 at 9:21 PM Olly Betts <o...@survex.com> wrote: > On Fri, Sep 13, 2019 at 05:54:20PM +0200, Benedikt Hallinger wrote: > > therion: error -- PROJ4 library: -1 (no arguments in initialization list) > > OK, this fails for me too. Thanks for reducing that testcase. > > I also spotted that therion had been binNMUed (read "rebuilt against the > latest dependencies") so it is actually fully using PROJ 6.1.0. > > I'd guess this is probably a general incompatibility with newer PROJ. > > Cheers, > Olly > _______________________________________________ > Therion mailing list > Therion@speleo.sk > https://mailman.speleo.sk/listinfo/therion >
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