Bílý vrch
icon TrekBuddy
www.trekbuddy.net
Outdoor companion.
  • internal / bluetooth / simulator GPS
  • offline raster maps
  • smart GPX / raw NMEA logs
  • waypoints and simple navigation
  • custom views
  • MIDP and Symbian phones
  • Blackberry
  • Android
Visit wiki to see all features, guides and howtos. Project tracker.
Trekbuddy is on Github now

Partners:    (Polish/Polski)(Polski) Compass mapy      (Polish/Polski)(Polski) Galileos mapy      (Polish/Polski)(Polski) CartoMedia      (Czech/Èesky)(Èesky) Eaglesoft trasy      (Polish/Polski)(Polski) ExpressMap     

 FAQFAQ   SearchSearch   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
ch-1903 Transformation

 
Post new topic   Reply to topic    TrekBuddy Forum Index -> Bugs
View previous topic :: View next topic  
Author Message
thomasgloor



Joined: 23 Jun 2008
Posts: 6

PostPosted: Wed Jun 25, 2008 9:33 am    Post subject: ch-1903 Transformation Reply with quote

Is there a bug in the ch1903 transformation?

I have a point: 47°21'48.7 8°2'51.3""
This should be 645000 245000 in ch-1903
but i get 645921 245848. Difference 79m in X and 152m in Y

The card I have is calibrated in WGS84. The displayed Possition is correct. The display in "Swissgrid" is wrong.

Any Idea?
Back to top
View user's profile Send private message
Ranger



Joined: 12 Dec 2006
Posts: 6030

PostPosted: Wed Jun 25, 2008 10:03 am    Post subject: Reply with quote

Hi,
Could you attach map calibration file ?
Back to top
View user's profile Send private message
kruch
Site Admin


Joined: 02 Jul 2006
Posts: 5676

PostPosted: Wed Jun 25, 2008 10:37 am    Post subject: Reply with quote

I think it is the one here: http://www.trekbuddy.net/forum/viewtopic.php?t=1613

My question was why was the map calibrated with WGS84... ?
Back to top
View user's profile Send private message
Ranger



Joined: 12 Dec 2006
Posts: 6030

PostPosted: Wed Jun 25, 2008 11:11 am    Post subject: Reply with quote

Yep, I would be sure about calibration method used for this one. If map was produced in CH datum, should be calibrated this way and km grid will work. If it is new one produced in WGS, probably have another km grid. Who knows without map ?
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    TrekBuddy Forum Index -> Bugs All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group