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 Calibrating Swiss Topo Maps with difference
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4 Posts

Posted - 08/09/2017 :  20:37:47  Show Profile  Reply with Quote
I try to calibrate a Swiss Topo Map (scanned raster map / jpg image) using the indications of map.geo.admin.ch. Either using New Swiss Grid and CH1903 or using UTM I get a slight difference of about 50 m to the North. What might be my error?
I am a layman in calbrating maps.
Thanks a lot, FiftyTwo

Attachment: My kmz calibrated with UTM
Allegato : Rasterkarte-Luzern.zip#9;1.43 KB


2619 Posts

Posted - 09/09/2017 :  10:22:44  Show Profile  Visit okmap's Homepage  Reply with Quote
Please send me (info@okmap.org) the image of the map (.jpg) so I can do some tests. You can use a free web service for big attachments such as DropBox, Jumbomail, ecc...
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1 Posts

Posted - 11/01/2019 :  15:14:35  Show Profile  Reply with Quote
Hello FiftyTwo,
I have the same problem, but after consulting with Paolo he wrote me:
I've fixed the problem in OkMap.
In the next release you'll find the correction.
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4 Posts

Posted - 13/01/2019 :  15:05:22  Show Profile  Reply with Quote
Thank you! Cool, it works now pefectly!
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