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Dear Martin,<br><br>Thank you very much for your fast answer !<br><br>Yes, the X-Y-Z coordinates I get are referenced to a geocentric CRS, this means, it is your point 1) :<br><br>> 1) Is it a geocentric Coordinate Reference System (CRS)? I means one<br>> with the origin at the center of the Earth like this picture:<br>> <br>> http://kartoweb.itc.nl/geometrics/Bitmaps/coord%202.1bb.gif<br><br><br>Thank you in advance,<br><br>Sam<br><br /><hr />La Suisse reçoit plus d'espace! Votre disque dur virtuel de 25 Go: <a href='http://skydrive.live.com' target='_new'>Windows Live avec SkyDrive!</a></body>
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