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US-Canada 3D High Def DEM file   

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US-Canada 3D High Def DEM file

Postby uyenho » Tue Sep 11, 2012 2:54 am

Requirements:
Any version of iGo 8.3x or Amigo or Primo
'3D' topograhic terrain details.

Put the files to your Igo /content/DEM folder
Canada:314MB
US:300MB

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Postby chas521 » Tue Sep 11, 2012 3:31 am

Thanks for uploading this. I'm sure some members will be happy to have them. However, just know that dem files are probably the biggest cause of memory errors.
If it ain't broke don't fix it!
ALWAYS BACK-UP YOUR FILES/FOLDERS BEFORE MAKING EDITING CHANGES!

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Postby uyenho » Tue Sep 11, 2012 4:12 am

chas521 wrote:Thanks for uploading this. I'm sure some members will be happy to have them. However, just know that dem files are probably the biggest cause of memory errors.

I know what you mean! These DEM files are just decorated for your GPS, and make you awake when feel bored for a long trip, so far I run in my iphone 4s and ipad1(take a lot memory) without any problem, not sure it might got problem with other phones, please let me know if any one get memory errors!
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Postby ekrboi » Thu Sep 20, 2012 10:46 pm

Links seem to be down.. any chance someone uploading this somewhere for me? I will try and put it up on my server in a way people will have access to it. so it doesnt keep getting taken down.

thanks
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Postby nabi » Fri Sep 21, 2012 9:06 am

In our map section, there are some links to DEM files, including a torrent
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Postby Downunder35m » Fri Sep 21, 2012 11:34 am

Dem files with up to 1.5 arc seconds resolution can be downloaded free from the official US servers ;)
Same for many other parts of the world (3 arc seconds).
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Postby Bleep55 » Fri Sep 21, 2012 2:05 pm

Is there something special about this "US-Canada 3D High Def DEM file" or is this the same as the Dem files that have been available for years?

Thanks
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Postby Yurbuh Tuggly » Fri Sep 21, 2012 3:05 pm

Age of the DEM file(s) mean little.
"High Definition" DEM files can have significantly greater detail (compare the file sizes for the same locations) at various zoom levels and resolution.
All at the cost of performance. On all but the highest power memory-rich GPS systems the performance degradation can be really really bad.
So you may see a pretty mountain in the distance as you miss your turn because the voice stuttered and the screen did not refresh fast enough.;)
But that's just my opinion..I could be wrong.
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Postby sudipminhas » Mon Oct 01, 2012 9:57 pm

Hi
I have Primo 2 but I do not see the 3D terrain button anywhere. What is wrong with the program?
Please help
Sudip
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Postby Yurbuh Tuggly » Tue Oct 02, 2012 12:49 am

sudipminhas wrote:3D terrain button anywhere

It depends what you are looking for.
First, you must have a valid DEM file installed in the correct folder, then go to Settings>Map Settings>Relief (toggle on/off).
But that's just my opinion..I could be wrong.
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Postby sudipminhas » Tue Oct 02, 2012 12:55 am

Hi thank you so much for your reply. The relief button is on and the dem files are in the content folder under the sub folder titled dem.I've downloaded US and Canada 3d dem files.
I did notice a slight change in topography when the relief is toggled off but not a huge difference. Maybe because I'm around very flat land.
Thanks again
Sudip
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Postby Yurbuh Tuggly » Tue Oct 02, 2012 1:24 am

sudipminhas wrote:but not a huge difference. Maybe because I'm around very flat land.

"Flat land" will show little/nothing. DEM files are mostly for mountains, valleys, large bodies of water, etc.
If it's toggled on, it's working.
But that's just my opinion..I could be wrong.
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