[OSM-dev] reliefs madness

[Artem Pavlenko]

On 8 Jan 2008, at 17:28, Andy Robinson ((blackadder)) wrote:

> Artem Pavlenko wrote:
>> Sent: 08 January 2008 5:23 PM
>> To: dev Openstreetmap; mapnik-dev
>> Subject: [OSM-dev] reliefs madness
>>
>> Just implemented accurate re-projection (warping) SRTM data into any
>> projection supported by proj4:
>>
>> http://artem.dev.openstreetmap.org/files/reliefs/natgrid_warp.jpg
>>
>> ( this one in British NatGrid : +proj=tmerc +lat_0=49 +lon_0=-2
>> +k=0.999601 +x_0=400000 +y_0=-100000 +ellps=airy +units=m
>> +towgs84=446.448,-125.157,542.060,0.1502,0.2470,0.8421,-20.4894
>> +units=m +nodefs )
>>
>> I guess next step would be to render some tiles with OSM data on  
>> top  :D
>>
>
>
> Neat, shows just how low the fens are too :-D

Yep, the fens look quite watery .. are they really?

>
> Cheers
>
> Andy
>