[Therion] mixing local and global coordinate systems

Andrew Atkinson andrew at wotcc.org.uk
Fri Aug 3 23:39:01 CEST 2012


I have not tried this with plt but with 3d, however according to the
thbook it should work.

import file.plt calibrate [<x> <y> <z> <X> <Y> <Z>]

Where coordinates in the imported file are shifted
from lower-case coordinates to upper-case coordinates.

I hope I have understood what you are trying to achieve, if not a sample
file might help

Andrew

On 03/08/12 19:20, Jonny Prouty wrote:
> Hello all,
> 
> I have a compass PLT file that I would like to import into an existing
> therion project that I have. The therion project has numerous fixed
> stations, all in the same UTM zone. Unfortunately, if I try to equate a
> station in the PLT file with the equivalent station in my project, I can't
> proceed as I can't mix local (in the PLT file) and global (in my project)
> coordinate systems. If I comment out all of the "cs" commands in my therion
> project as a test, I can't proceed because therion won't allow two fixed
> stations to be equated with one another. Removing the "cs" commands isn't
> really a viable option anyways since I need the stations to have real-world
> coordinates so that I can load the maps into QGIS and GRASS.
> 
> My question then is is it possible to override the coordinates of an
> imported PLT file, transforming them into the coordinate system of my
> project? Thanks very much in advance!
> 
> Best regards,
> 
> Jonny
> 
> 
> 
> 
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