Digital Orienteering Map Archive for Terje Mathisen
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<< Jukola-trening Natt (Blodslitet 2010 H55) (09/06/2012)
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OBIK KM Stafett (14/06/2012) >>
Papperhavn: A mapping experiment (10/06/2012)
Category:
Training
Map/area:
Papperhavn syd
Distance:
3.79 km
Time:
71:11
This was an experiment in combining public mapping resources with Google Maps aerial photos: I combined several images from the
Hvaler community public topo map server
with a similar set of images from
Google Maps
, using the Google images as the bottom layer and putting the topo map images with 1 m laser contours on top.
On the topo layer I edited the color palette, so that the ocean became transparent, the default background was white, significant vegation areas green and fields yellow. I also emphasized the brown contours.
When combined in Photoshop the naked rock formations does not show through, while all vegetation is very obvious. I used Overlay blending mode since that seemed to give the best results.
PS. I forgot to start my GPS until 10 minutes after we started, so the distance shown is incorrect: The total trip was about 4.5 km
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