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Archived  - Use Search => Archived Support => Topic started by: alizhan on August 28, 2004, 01:16:27 PM

Title: Trouble getting DEM to work...
Post by: alizhan on August 28, 2004, 01:16:27 PM

I recently upgraded to 2.1, and decided that it was time to try the whole 3D thing again. I am promoting a mountain bike event here in Socorro, NM, and I would very much like to use TF to make my trail maps.

I can't seem to get the 3D view to work.

I tried option #1 from the 3d.php page. I zoomed to the area in question, saved a NED GeoTIFF file, used 3DEM to convert it to an ASCII DEM file (~6 MB), and placed that file in my DEM directory (C:\Program Files\TopoFusion). I load up my track, zoom it to fit, and hit the 3D button.

I get a beautifully rendered, but completely flat map.

Any ideas what I'm doing wrong?

  -- Mark

Title: Trouble getting DEM to work...
Post by: alizhan on August 28, 2004, 03:07:30 PM

Some more info. My demIndex.dat file contains the following:

2
C:\Program Files\TopoFusion\catmtn.dem
catmtn.dem
1
12
488144
3.55431e+006
488160
3.56817e+006
499935
3.56816e+006
499935
3.5543e+006
C:\Program Files\TopoFusion\socorro-south.dem
socorro-south.dem
0
0
166018
0
166018
0
166018
0
166018
0

Obviously the "socorro-south" entry is bogus, but I'm not sure why. I can send the DEM file to anyone who wants to look at it.

  -- Mark

Title: Trouble getting DEM to work...
Post by: Krein on August 28, 2004, 03:23:29 PM

Hi,

Yeah, looks like your DEM file doesn't have any data.  If you want you can send it to us (with a track in the area), or I'd try downloading it again.

Also you could try deleting the demIndex file.