Dear Marko,
I already wrote a class to read SRTM data directly with mkgmap, i.e.
without having to create the contours as separate (huge) files. Since
I'm still testing it and I have to add some configuration stuff (path of
directory containing data, distance between contour lines etc.), I have
not posted it yet. It can already read the .hgt-format and the CGIAR
GeoTIFFs (the latter requires java image io to be installed).
Since the ASTER files come as GeoTIFFs, I think it will be easy for me
to read them (I will only have to adjust the tile size from 5x5 degrees
to 1x1).
Best wishes
Christian
Marko Mäkelä schrieb:
I came across this via Slashdot:
http://asterweb.jpl.nasa.gov/
http://www.nasa.gov/home/hqnews/2009/jun/HQ_09-150_ASTER_Topographic_Map.html
Quoting the press release above:
"Previously, the most complete topographic set of data publicly available
was from NASA's Shuttle Radar Topography Mission. That mission mapped
80 percent of Earth's landmass, between 60 degrees north latitude and
57 degrees south. The new ASTER data expands coverage to 99 percent,
from 83 degrees north latitude and 83 degrees south. Each elevation
measurement point in the new data is 98 feet apart."
This is good news for us North Europeans. The north limit of the SRTM
is a few hundred meters north from my home, about 30 km north from
the Helsinki coast.
Can anyone who knows the topography business take a look at this data
and write scripts for translating ASTER elevation data and OSM with mkgmap?
At the end of the above press release, there are a few links that ought
to be useful for us:
For visualizations of the new ASTER topographic data, visit:
http://www.nasa.gov/topics/earth/features/20090629.html
Data users can download the ASTER global digital elevation model at:
https://wist.echo.nasa.gov/~wist/api/imswelcome
and
http://www.gdem.aster.ersdac.or.jp
Best regards,
Marko
_______________________________________________
mkgmap-dev mailing list
[email protected]
http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
_______________________________________________
mkgmap-dev mailing list
[email protected]
http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
