AW: [Qgis-user] Ideas for QGIS plugin?

[Merkes Dirk]

Hi Carson,

the projection isn`t in the standard CRSs. Somebody told me that it isn`t possible to define this projection. I'm looking for the projection code in proj4, but I could't found anything. Somebody told me that it isn't possible to create something like that. So I hoped that it would be possible to create aplugin to convert from UTM to MGRS. The MGRS (or UTMREF) is based on the WGS 84 coordinate system. You can find an description of MGRS here:
http://en.wikipedia.org/wiki/Military_grid_reference_system
Thank you for your answer.

Dirk


-----Ursprüngliche Nachricht-----
Von: Carson Farmer [mailto:carson.farmer at gmail.com]
Gesendet: Dienstag, 3. Februar 2009 11:49
An: Merkes Dirk
Cc: qgis-user at lists.osgeo.org
Betreff: Re: [Qgis-user] Ideas for QGIS plugin?


Hi Dirk,
> Dear QGIS users,
>
> I`am using QGIS in our local volunteer fire brigade headquaters. At the moment I'am using the WGS 84 coordinate system, but all rescue units in Germany are using the MGRS or UTMREF coordinate system. I haven`t found a way to create an own projection in QGIS in MGRS or UTMREF because I`m a absolutly beginner in QGIS.
1) If the projections you mentioned above are standard CRSs, chances are 
they are in the QGIS database, and you should be able to located them in 
'File' > 'Project properties' > 'Coordinate Reference System (CRS)'. If 
they are indeed there, great, the skip the next step...

2) If your CRS is not in the QGIS database, then you can create a custom 
CRS by going to 'Edit' > 'Custom Projection'. Here you will have to 
specify a valid proj.4 string, and you can test it to make sure all the 
parameters are correct...

3) Now it's as simple as right clicking on the layer in the layer list, 
and selecting 'Save as shapefile'. Once you've specified the output file 
name, a dialog will pop up with the list of available CRSs, choose the 
one you want to project your data to, and voila! If you had to create a 
custom CRS, this will be located in the 'User defined coordinate system' 
section.

Hope this helps,

Carson

-- 
Carson J. Q. Farmer
ISSP Doctoral Fellow
National Centre for Geocomputation (NCG),
Email: Carson.Farmer at gmail.com
Web:   http://www.carsonfarmer.com/
       http://www.ftools.ca/