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  1. #41
    Important User (DEM) Digital Elevation Model
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    osiris4isis's Avatar
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    According to the file naming, Brazil_CGIAR_Premium_2006.06_180226.dem is newer.
    Do not PM me with questions. That's what a forum is for.

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  3. #42
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    I am new here, so please don't kill me just yet xD

    If I wanted to use this on media NAV (renault) would it be possible?

  4. #43
    Important User (DEM) Digital Elevation Model
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    This is NNG thread; the data are in NNG format. So if your device is running NNG products (iGO/Primo/NextGen) it will worked. Otherwise, no.
    Do not PM me with questions. That's what a forum is for.

  5. #44
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    Basemap_Eurasia_CGIAR_2006.06_180504

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    Last edited by Boki; 4th April 2019 at 11:31 AM. Reason: some code, spoiler...

  6. #45
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    It's a basemap file, not a dem file, isn't it? (So why is it .dem? It's an .fbl.)

  7. #46
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    Basemap_Eurasia_CGIAR_2006.06_180504.dem

  8. #47
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    Full Europe dem file was 254 Mb. This is 9.23 Mb (like an average basemap). Just a smaller country has a 4.5 Mb dem.
    It couldn't be Eurasia dem in my opinion.

  9. #48
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    No comment!


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  10. #49
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    Okay!
    (But what's the difference, because full europe is 25x bigger file, then eurasia? It's "just" data. Hm...)

  11. #50
    Important User (DEM) Digital Elevation Model
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    It's not "just" data. It's what kind* of data. DEM size depends on not only on coverage but also changes** in elevation. Furthermore, there are different level of accuracy. "Basemap" is lowest*** level (try highest zooming and compare) If you parsed the DEM file, you'll understand.

    * "kind" includes NASA (raw data) and CGIAR (fixed data). So it's possible to see newer/better DEM to be smaller in CGIAR than NASA.
    ** data is height field, so mountainous places take more data to encode than flat places.
    *** actually, some .fbl (map file) have the lowest/basic DEM data in them. Which only used at lowest zooming (planet view)
    Last edited by osiris4isis; 4th April 2019 at 10:04 PM.
    Do not PM me with questions. That's what a forum is for.

 

 

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