On 20.1.2009, at 10:57, mara wrote:

Uploaded an old map and have just th2 file, no centerline. Original scale is 1:2000 but inserting this data in thconfig gives me a map 3 cm long for a survey of 400m in total, there's something wrong.

Anyway you MUST "calibrate your sketch. Or by surveying points or manualy by calibration line. Check the scap section of xtherion map editor. There is button "Calibrate". Press it and click on your sketch on two points with known distance. The points should be diagonaly, not horizontal or vertical only. Change in two fields under calibrate the values according to your sketch. It is the same as if you draw sections. Martin