brianhodgson
Posts: 1
Joined: Thu Mar 03, 2011 10:43 pm
Location: United Kingdom

XY transform: NTF France II to Swiss LV03 (CH1903)

Thu Mar 03, 2011 11:44 pm

There appears to be a problem transforming from NTF France II to Swiss LV03 (CH103). An XY of 870553,2172733 in NTFII transforms to
479707,153887 in Swiss LV03, whereas another well known transform package gives an XY in the Swiss system of 479008,150920. Quite a big difference. Any thoughts?

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johan
GpsGate
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Joined: Wed Aug 04, 2004 10:40 pm
Location: Sweden
Contact: Website

RE: XY transform: NTF France II to Swiss LV03 (CH1903)

Thu Mar 03, 2011 11:52 pm

Under Tools -> Manage Grids and Tools -> Manage Datums you have the parameters the transformation is based on. There are for example two different CH1903 datums.

Regards,
Johan

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