[Therion] Irish Grid coordinates

[Graham Mullan]

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

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graham.mullan at coly.org.uk

0117 9502556 or 07887 637064 (or try 0844 2327803)