[OSM-dev] Datum shifting code (towgs84 parameters?)

[sorel johann]

Hi,

the referencing module of the geotoolkit library handle towgs84 
parameters (http://www.geotoolkit.org/). it also have a xml parser for 
osm, a client for api 0.6 and osm tms servers in geotoolkit-pending.

you can find several demo modules in the code. Ask if you have troubles ;)

johann


On 28/06/2011 13:19, Nick Whitelegg wrote:
> Hi,
>
> Following on from my post about the Austrian grid system, I'm having a 
> bit of trouble using the Java Proj.4 library as it ignores datum 
> shifts which means the projected values are about 100m out. For OSGB 
> it's not a problem as I have another library which does the job but 
> for anywhere else in the world which doesn't use WGS84 it could be tricky.
>
> So just out of interest, has anyone written Java code to do datum 
> shifting based on the "towgs84" parameters in Proj.4 definition files? 
> Obviously I could look up how to do this myself but time before SOTM 
> is a little tight and if some open-source code exists already I may as 
> well use that :-)
>
> Thanks,
> Nick
>
>
>
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