http://www.shapeways.com/forum/index.php Shapeways: Bring your creativity to life in 3D http://www.shapeways.com/forum/index.php?t=rview&goto=61082&th=12624#msg_61082
Greetings! I'm a paleontologist at the Mammoth Site of Waco Texas. At the moment I'm working on using photogrammetry to create a 3D map of the bonebed. I've managed to capture one section of the bonebed at a reasonably high resolution, and I'd like to prototype it. The problem is that it seems to get screwed up when I upload it. Large sections at the 'lower' elevations of the model are missing. How can I fix this?

http://shpws.me/nezN]]> WacoMammoth 2013-01-30T21:52:17-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=61083&th=12624#msg_61083 Download a free copy of netfabb studio basic and try its checking and repair
functions. (Or make a sample file available so the resident mavens can see what
is wrong with it )]]> mkroeker 2013-01-30T22:00:14-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=61089&th=12624#msg_61089
if the free app doenst work, you could probably find a 3d artist on here that can create a clean model fairly easily, with all the detail of the original scan.]]> Tank3D 2013-01-31T00:55:03-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=61200&th=12624#msg_61200
The strange deletion of the lower elevation of the model is the result of hole filling. My photogrammetry captured the shape of fossils excavated in bas-relief; its a single surface or membrane. It thus doesn't have sides, a bottom, or volume. Shapeways (and Netfabb) are treating the edges of the scanned area as the edges of a hole and is throwing up a plane through the scan that connects these edges. Everything above this plane is treated as a solid object and retained, everything that is below the plane is discarded.

Learning is fun! But . . .

Here's the problem. I really have no idea how to fix this. All I've got is AGI soft photoscan, Meshlab, and Netfabb. None of these programs seem to include a way to turn a single membrane into a solid object. I still need help! Any ideas?]]> WacoMammoth 2013-02-01T20:19:13-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=61204&th=12624#msg_61204 i'll let you know what i find.]]> Tank3D 2013-02-01T21:10:37-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=61212&th=12624#msg_61212
at the moment, the collada or DAE-file had several cameras in it and the mesh of the scanned area is broken up into 7 pieces. this more than likely causes the issues you encountered.

i tried a quick fix, but this ended up creating ugly seams and left holes in the mesh. unfortunately my laptop is pretty old and, well, crappy. i cant really work on the file on it. i should be able to fix this on my workstation and get it ready for printing.

i wont be at my workstation until after the weekend. but any decent 3d artist should be able to fix this pretty easily.]]> Tank3D 2013-02-01T21:51:06-00:00