[vtkusers] How to import NASA SRTM DEM data into VTK

[Elvis Dowson]

Ahh, yes you're right! :-)



Mount St. Helen's was supposed to be in the center, but each cell  
sample is only 90m x 90m. I used the 3 arc-seconds (90m) sample data.  
So, I guess I need to import a larger surface area and then try to re- 
construct Mount St. Helen's in 3D.

Any tips or pointers on how I can tile multiple raster images  
containing elevation data to reconstruct a 3D terrain over a larger  
area? I can try this out immediately and then compare it with the 3D  
surface reconstructed using the VTK supplied St.Helens DEM ASCII file.


Best regards,

Elvis Dowson

On Oct 13, 2008, at 7:00 PM, David Cole wrote:

> Try swapping the left and right images. They look to me like they'll  
> line up perfectly if you reverse the order... (123 w is wester/ 
> lefter than 121 w...)
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20081013/d4d07327/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: N46W123.png
Type: image/png
Size: 32530 bytes
Desc: not available
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20081013/d4d07327/attachment.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: N46W122.png
Type: image/png
Size: 16337 bytes
Desc: not available
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20081013/d4d07327/attachment-0001.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: N46W121.png
Type: image/png
Size: 18964 bytes
Desc: not available
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20081013/d4d07327/attachment-0002.png>