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Posts: 179 | Thanked: 90 times | Joined on Dec 2007
#6
Originally Posted by phgerin View Post
How do I download the map ?
I got a fix, pressed 'Get OSM Maps', then the message 'connected' is displayed but nothing is downloaded....
(wget is installed)

thank you.
You are likely downloading the maps. There's no progress indicator on each download. [Getmaps uses 'wget -q -O -' So mapdata goes through stdout. ] But if you want to verify that you are in fact downloading, temporarily change the bits setting higher. (25 maybe). This makes the app download more, smaller maptiles to get the same area. You should see output in the window as each map is compiled. If this doesn't help, run 'getmaps_osm' from xterm, and post back the output.


The 'bits' setting is a little confusing and deserves explanation. It specifies the number of bits in the quadtile address. The more bits, the more tiles. The more tiles the smaller they are. 21 is the default and works for most places. But for dense urban areas you will need to go higher as there is a max size for how much data one quadtile will hold. So trying to download London or tokyo at 21 bits will likely fail.

The flip side of this is that there is slight overlap in the tiles. So the map can look wonky where tiles meet if the bits setting is too high. I generally use-
Big City- 23 to 25 bits
Deserted Wasteland- 19 bits
Everything Else- 21 bits.

hope this helps,
kernelpanic
 

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