[Geowanking] rendered 3d scene
bfraser at geoanalytic.com
Thu Mar 3 07:26:39 PST 2011
I had high hopes for the workflow you describe, but low res DEM in
Google Earth results in a flat scene. But I may try the "background
fences" approach; it might add enough detail...
On 3/2/2011 9:45 PM, Roger Rayle wrote:
> Maybe this would work for you...
> 1. Overlay a higher-res aerial photo of the area onto Google Earth
> 2. Build a model of the berm using Sketchup and place it on Google Earth
> 3. Overlay some landscape photos of the site onto some "background
> fences" built with Sketchup
> 4. Take some screenshots.
> (I used something like this to depict some fence diagrams of lithology
> in Google Earth.)
> --Roger Rayle--
> rmrayle at gmail.com <mailto:rmrayle at gmail.com>
> On Wed, Mar 2, 2011 at 4:13 PM, Brent Fraser <bfraser at geoanalytic.com
> <mailto:bfraser at geoanalytic.com>> wrote:
> To all,
> A friend of mine needs to submit a picture (rendering?) showing
> how a proposed berm would look at a shooting range. I'm getting
> this third (or fourth!) hand so I don't have any more details on
> the request.
> My first thought was to use something like Google Earth and a 3d
> model of the berm and take a screen snapshot when I maneuvered to
> a viewpoint I liked. But the available DEM and imagery are of
> such low resolution it would not be adequate (and I think it
> violates the license agreement). Similarly, unless I get much
> better DEM and imagery (and that's not likely), terrain modelers
> like VTP (http://vterrain.org) or "terrain capable" 3D modelers
> like Sketchup would not give enough detail.
> So how about augmented reality? I could take a photo of the area
> using a smart phone, and maybe get position and orientation out of
> it somehow (perhaps determine focal length too). But I don't
> know of any FOSS projects for rendering 3d models onto real photos.
> Any ideas?
> Best Regards,
> Brent Fraser
> Geowanking mailing list
> Geowanking at geowanking.org <mailto:Geowanking at geowanking.org>
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