[wellylug] Possible project of interest? (LINZ vector topo data)

Jonathan Brewer jon.brewer at worldnet.att.net
Fri Dec 17 12:08:12 NZDT 2004


I think that GeographX have done this, though they doesn't have it
online. They do have digital elevation maps that you could import into a
GIS package in order to do what you want yourself.

http://www.geographx.co.nz/downloads.htm

If you have broadband some of the videos are cool. They're all highly
compressed though. The high-res are much nicer.

JB



--- David Antliff <dave.antliff at paradise.net.nz> wrote:

> 
> On Thu, 16 Dec 2004, Pete Black wrote:
> > Just out of interest, how hard would it be to produce a detailed
topographic 
> > 'height field' of the wellington region e.g. where each pixel's 
> > height
above 
> > sea-level is encoded as a 16 or 32-bit 'grayscale' value, as opposed

> > to the false-colour shading you have in your example image?
> 
> Incidentally, that would be cool for the (non-Linux) game Simcity4 -
> allowing you to recreate Wellington City...

I would imagine it is pretty simple. I can get you the gridded topo data
in a variety of formats, can you look at the blurb on GDAL & see if it
can output what you want directly? Otherwise, can ImageMagick reformat
to what you want>

(GDAL is effectively a spatial raster reformatter/library which deals
with a variety of spatial context imagery & grids) 

http://www.remotesensing.org:16080/gdal/



Cheers 

  Brent


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