DEM CD's

[Scorpion69]

HI..

I have 6 CD's of all the DEM Data....is there a way i can use these with TopoFusion?

[ScottMorris]

If they are in the older DEM format you should be able to use one CD at a time by directing TF to use the drive as the DEM directory.

If it works with one CD you could always copy them all into one directory on your Hard Drive to do all at the same time.

Let me know if it works!

[Scorpion69]

Hi,

These are Offical USGS-DEM (High Detal and Full Color) the Readme says GTOPO30

The folders are like E020N40 the files are labled like:

E020N40.DEM
E020N40.DMW
E020N40.GIF
E020N40.HDR
E020N40.PRJ
E020N40.SCH
E020N40.SRC
E020N40.STX

Extension               Contents
---------               --------

   DEM        digital elevation model data
   HDR        header file for DEM
   DMW        world file
   STX        statistics file
   PRJ        projection information file
   GIF        shaded relief image
   SRC        source map
   SCH        header file for source map

[ScottMorris]

It's been a while since I've used actual DEM files but I believe the .DEM format should be read correctly.  Give it a try.

[Scorpion69]

HI,

I am new to Topofusion so i am not sure how to test out the DEM files?

Can you give me a hint..please

Thanks

[ScottMorris]

Go to Options->General->DEM Directory and point it to one of your CDs and one of the directories where all the DEM files are.

Then restart TF and see if you have elevation data in an area you know is covered.  It might make startup of TF a little slower.