On 29 Jul 2019, at 11:54, Anton van Rosmalen <A.M.vanRosmalen@gmx.net> wrote:_______________________________________________Hi Philippe!Thanks... but I'm still getting the utterly useless message:"can't determine meridian convergence for lat-long systems"...when I use the coordinates in WGS84 I already got when I used lat/long instead of long/lat as you suggested.Cheers,AntonGesendet: Sonntag, 28. Juli 2019 um 09:10 Uhr
Von: "Philippe Vernant" <phil.vernant@gmail.com>
An: "List for Therion users" <therion@speleo.sk>
Betreff: Re: [Therion] Therion 5.4.2. potential bugHi Anton,Here is what I have for the event de la coudoulière :cs epsg:2154 #Lambert 93fix E6 747080.000 6301550.000 194.000 10 10 10if you convert it to with GDAL you should have :cs EPSG:4326 # code WGS84fix E6 3.58505 43.81139 194 10 10 10longitude should be first.Best,Phil_______________________________________________ Therion mailing list Therion@speleo.sk https://mailman.speleo.sk/listinfo/therionOn 27 Jul 2019, at 22:37, Anton van Rosmalen <A.M.vanRosmalen@gmx.net> wrote:_______________________________________________List,
Continuing this thread because there is still a coordinate conversion bug in Therion 5.4.4
in coordinate conversion when exporting to KML
I have entered the coordinates in UTM based on a point both from an
actual GPS and from Google Earth (they are the same) in cs epsg:2154
(Lambert 93) or epsg:32631 (WGS84 / UTM 31N)
When I look at the output in UTM again, the entrance has shifted
directly south for 9 meters.
I'm assuming Therion changes the coordinate to something else (more
assumptions... WGS84?) and then changes it back again to the desired
output format. This conversion produces the wrong results I think.
As a workaround, maybe I could enter and export in WGS84 lat/long,
however, when I entercs epsg:4326 # WGS84
fix E6 43.811399 3.585060 194 10 10 10I get"can't determine meridian convergence for lat-long systems"I can't find the format required for WGS84 lat/long in the manual, can someone
provide this?
Thanks,
Antoncan't determine meridian convergence for lat-long systemsGesendet: Freitag, 18. Januar 2019 um 15:33 Uhr
Von: "Martin Budaj via Therion" <therion@speleo.sk>
An: "List for Therion users" <therion@speleo.sk>
Cc: "Martin Budaj" <m.budaj@gmail.com>
Betreff: Re: [Therion] Therion 5.4.2. potential bug_______________________________________________ Therion mailing list Therion@speleo.sk https://mailman.speleo.sk/listinfo/therionNo, we don't modify existing releases. The fix will be included in 5.4.3 eventually, but until then you can use the latest snapshot (https://therion.speleo.sk/downloads/therion-setup-dev.exe).MartinOn Fri, Jan 18, 2019 at 9:32 AM Michael <knollesimage@t-online.de> wrote:Thank you, Martin, for the quick fix.
Is it also fixed in
https://therion.speleo.sk/downloads/therion-setup-5.4.2.exe
?
Regards,
Michael.
Von: Therion <therion-bounces@speleo.sk> Im Auftrag von Martin Budaj via Therion
Gesendet: Donnerstag, 17. Januar 2019 19:26
An: List for Therion users <therion@speleo.sk>
Cc: Martin Budaj <m.budaj@gmail.com>
Betreff: Re: [Therion] Therion 5.4.2. potential bugHi, it's fixed in d98a0a6.
Martin
On Tue, Jan 15, 2019 at 7:28 PM Martin Budaj <m.budaj@gmail.com> wrote:
On Sat, Jan 12, 2019 at 10:51 AM Michael <knollesimage@t-online.de> wrote:
I have now attached a minimal cave sample produced with 5.4.1. and one produced with 5.4.2. to demonstrate the displacement.
Hi,
the problem is that EPSG:31467 projection uses the "potsdam" datum and the PROJ library used by Therion changed the way how to transform potsdam datum to the standard WGS84 datum – it switched from a simple string parameter (towgs84) to using external grid file (see https://proj4.org/resource_files.html#transformation-grids for examples).
No grid files are currently included in the windows Therion distribution, so the transformation is not correct in 5.4.2. Therion needs to be modified to include and use those files – hopefully soon.
Best regards
Martin
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