[Therion] Irish Grid coordinates

[Andrew Atkinson]

Try these

http://spatialreference.org/ref/epsg/2157/
http://spatialreference.org/ref/epsg/29903/


Andrew

On 10/02/11 08:03, Graham Mullan wrote:
> I am starting the tedious process of migrating a large dataset from
> Survex to Therion. Now would therefore seem the right time to start
> converting the co-ordinate system that is used.
>
> The data is for Co. Clare in Ireland and previously all entrances and
> fixed points were listed in Irish Grid. The Irish are changing this to
> ITM (Irish Transverse Mercator) and I would like this to be the system
> that we use as it is what will appear on their maps etc. I am assuming
> that it is not supported by Therion. I cannot find an EPSG number that
> specifically relates to this. The IOS website talks about their system
> being compatible with ETRF89, for Europe but that is the nearest
> indication I get.
>
> Can anyone tell me what the correct EPSG number might be or is it
> possible for ITM to be built into Therion as an option?
>
> Graham
>
> ---
>
> graham.mullan at coly.org.uk
>
> 0117 9502556 or 07887 637064 (or try 0844 2327803)
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