[OSM-talk] contours on main map

[Mark Williams]

Steve Hill wrote:
> On Thu, 8 May 2008, Robin Paulson wrote:
>
>   
>> maybe i'll do it myself; some transparent png laid over the top of the
>> osm tiles can't be so difficult
>>     
>
> Have a look at: http://wiki.openstreetmap.org/index.php/Contours
> This tells you how contour rendering has been implemented on the piste map 
> and cycle map.
>
>   - Steve
>   

Mmm - I like Srtm2osm & plan to add the contours to a Garmin map later.

I'm running it in Linux, and it gives me 3 odd characters at the start 
of the file:

00000000 - 3c 3f 78 6d  6c 20 76 65  72 73 69 6f  6e 3d 27 31  <?xml 
version='1
                   ^^^^^

(from hexcat srtm.osm)

Running "tail srtm.osm -c +4 >srtm1.osm" sorts it out, but I don't know 
why it does that?

The Isle of Wight comes to almost 8Mb for 10m contours - so it's going 
to be BIG for a decent size area!

Mark