[Openstreetmap] Re: Map of Oslo and Norway?

[Petter Reinholdtsen]

[Nick Whitelegg]
> Not too much - the only thing is, Freemap stores everything in UK
> grid projection rather than lat/long so it would involve some
> conversion.

Oh.  That does not sound future proof to me. :)

Any plans of making it more generic, or perhaps using an(y) UTM zone
instead?

> It's about 120MB so far, for everything below 55N. The data is in a
> binary format of heights sampled every 90m or so, so some coding is
> necessary for the data to be displayed. I figured that generating
> the contours from the data would be more flexible and require less
> storage space (if slower) than pre-generating them as static images
> (lack of scalability of which would be a major problem).

Having the contours on a vector format sound like a good idea to me.
Are there any good vector formats to use for such task?  I guess ESRI
Shape File would work.

> If enough people would like a SRTM contour generation routine in a
> language other than the present PHP, I could work on a conversion.

A C library would probably be more universally usable. :)

I would expect GRASS to have such tool already.  Anyone know if that
is the case or not?