Digital Elevation Models + Aven
Mark.Shinwell at cl.cam.ac.uk
Wed Apr 20 12:46:03 BST 2005
On Wed, Apr 20, 2005 at 12:26:37PM +0100, Olly Betts wrote:
> > and the colour depth-profile is rather useful to see where abouts our
> > mythical 'walk in entrance at -700m' is going to appear, so I may look
> > into creating a seperate 'flag' in the .3d files for 'DEM data'
> Is there any benefit in converting the DEM data into .3d rather than
> just allowing aven to read it directly? Most DEM data will be in one
> of a small number of formats, so aven just needs to know how to read
One of the issues which halted my work on this was the issue concerning
the file formats. It is not totally trivial---for example, one might
end up with .3d files depending on other DEM files.
> Mark wrote some code to render surface terrain already. It's not been
> folded into the current development version yet, but I'd suggest at
> least looking at it, and probably reusing much of it. He rendered the
> terrain as translucent on top, but opaque when viewed from below,
> which was pretty effective.
I'll see if I can dig out some screenshots, and the code...
Mark Shinwell -- email: Mark.Shinwell at cl.cam.ac.uk
Theory and Semantics Group, University of Cambridge Computer Laboratory
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