[postgis-users] 3D geometries

[Paul Ramsey]

The main special consideration is that if you don't also densify the lines
to the resolution of the dem can can end up with a line that hops valleys
and tunnels through ridges. Also, I don't know if we have a draping
function. Was something I thought would be useful when I started futzing
with the raster stuff, I guess because I have a thing for DEMs.

P.

On Tue, Mar 13, 2012 at 10:42 AM, Stephen V. Mather <
svm at clevelandmetroparks.com> wrote:

>  Hi All,****
>
>                 Any special considerations for turning a 2D multi-line
> geometry into a 3D geometry using a DEM as a RASTER within PostGIS?  Has
> anyone played in this arena?****
>
> ** **
>
> Thanks,
> Steve****
>
> ** **
>
> **[image: http://www.clemetparks.com/images/esig/cmp-ms-90x122.png]**Stephen
> Mather
> Geographic Information Systems (GIS) Manager
> (216) 635-3243****
>
> svm at clevelandmetroparks.com
> clevelandmetroparks.com <http://www.clemetparks.com/>****
>
> ** **
>
> ** **
>
> ** **
>
> ** **
>
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