• Deebster@programming.dev
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    8 months ago

    I always found these very intuitive, but I don’t know if that’s just due to having an analytical mind, or just learning this stuff early. Do people struggle to understand topographic maps?

    • DAMunzy@lemmy.dbzer0.com
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      8 months ago

      In the Land Nav portion of PLDC (US Army training for becoming a Sergeant - is called something else now) there were soooooo many people that failed out/had to do it over again, that I was super worried when I did it. Seemed pretty damn easy to me. 🤷

    • DrMango@lemmy.world
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      8 months ago

      I think your analytical mind got “typographic” and “topographic” mixed up…

      • EldritchFeminity@lemmy.blahaj.zone
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        8 months ago

        It gives a basic idea, but I think something like Cities:Skylines where you can create maps using a height map and then get the topography lines in a 3d space where you can actively shift the camera around to see them overlaid from any angle would probably help people grasp the idea.

        Having said that, I’m now imagining drone footage overlaid with the height maps as an additional resource to standard topographical maps. Would be neat if somebody could create software that could calculate and overlay the height maps in real-time using the drone’s altimeter or something.

    • meyotch@slrpnk.net
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      8 months ago

      If it were a local depression instead of a hill, the lines would be hatch-marked on the side pointing into to depression.

      • BCsven@lemmy.ca
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        8 months ago

        Do you have an example, I either never have seen this or never had a depression on a map

        • Illiterate Domine@infosec.pub
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          8 months ago

          Here’s a slide describing how depressions are represented, and here is a topographical map of a sinkhole showing the hashes.

          That said, I had to look pretty hard for a map with those marks. Numbers are much more common.

          • BCsven@lemmy.ca
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            8 months ago

            Ah, awesome. i appreciate you taking the time to put this together. I dont recall these on maps, but as you said numbers are common. And i typically use the topomap with shading, so shading helps with understanding the terrain

      • sixCats@lemmy.dbzer0.com
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        8 months ago

        That’s interesting, ordinance survey (in the UK) don’t do that, so it isn’t a universal standard

        In the UK, you have to notice that the heights are reducing

      • Th4tGuyII@kbin.social
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        8 months ago

        Tell you what, if this ever comes up in a psychological evaluation I’m fucked…

        “Tell me, what do you see here?”

        “A damn fine rack is what”

  • gullible@kbin.social
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    8 months ago

    I’ve always been curious about topographical maps that involve curved or hanging terrain and whether there’s a way to denote the existence of an area beneath. That’s obviously going to be irrelevant 99.9% of the time, but grade school curiosity rarely fades completely.

    • meyotch@slrpnk.net
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      8 months ago

      The rare overhang distinct enough to be captured in topography is i dicated by a brown dotted line in usgs maps