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Joined 2 years ago
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Cake day: July 1st, 2023

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  • Third dimension isn’t up, it’s just not X or Y. We just say “height” or synonyms for it because we say “length and width” for X and Y, even though all axis are just length between vectors proceeding in order of being able to exist, X, Y, then Z.

    If you are plotting your perspective, it will run on entirely different coordinates to an object’s coordinates, i.e. Camera vs Object stricture. But in most arts and all math, we tend to model the object and it’s values which we create and assign to it as attributes, not with values of how it should look from various perspectives.

    I think that’s the confusion. You could get used to the Z being treated as Y, but it’s incomparable with everything else and you’d have to now confirm with other’s that length and width are X and Z and extrusions from 2D plane are Y. This doesn’t occur much anywhere else. This is the whole premise behind the meme. Arguing between standards when one is universal, the other is niche but those that have only learned the niche one are adamant the universal one is wrong.


  • No. That is not my logic. It’s the logic of Rene Descartes who invented the thing you are trying to talk about.

    And because gaslighting attempts online are hilarious, I’ll assume you just didn’t read so good and will repeat myself again; we tend to rest the plane on the floor, as it is in our reality with gravity it is easier to conceive. Like modelling a car, it’s wheels on the screen spend most of the time pointed down.

    You don’t have to. You can model it any direction you want, but most people find it easy in an orientation that mimics common perspective. But however you do it, you still can’t have a Z axis without a plane. That’s the point. Grid is plane and plane is needed for Z. If you have a grid on Z it’s representing an infinitely possible slice through extrusion and that’s basically a concept behind some fractals, which introduces a new vector for new XYZ points within.

    I know you really want to be right but this is very long-standing foundational and basic stuff we just do. It isn’t my logic or opinion, I’m sharing this knowledge to you, something you can very easily look up yourself right now and forget I even exist—which would be neat.


  • saltesc@lemmy.worldtomemes@lemmy.worldThere are two kinds of people.
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    15 days ago

    You’re mixing up perspective with the object’s actual coordinates system. The “left-right-up-down” are your perspective or computer screen and do not define the axes of the object itself. The object has its own.

    If I rotate a map on a table, it’s X and Y don’t suddenly flip. The coordinates belong to the object, I’m just viewing them from a different perspective now.

    In mathematics, the Z axis only exists because it’s defined as being perpendicular to an existing plane (the plane X and Y form). The gridlines represent that plane and Z’s extrusion values reference it. Your perspective or viewing angle don’t influence these coordinates at all.

    Commonly we face the XY plane down as it’s “floor”. We build things from the ground up. We draw from top down. It’s just how gravity brought the standard around. You can flip it however you want, though. But if you see a grid, that’s a plane and Z is extrusion off that.


  • I know Z as upward. X and Y were always on the base plane representing length and width. Z comes in being all like, “Now we’re being 3D!”

    So wherever the “floor” is, represented with gridlines, boundary, canvas, etc. that’s where they live. That is Flatland where there is no up or down. It is 2D where most of my work is. If you try tell me Y is Z, I’d ask “wtf is a Z?”




  • saltesc@lemmy.worldtoScience Memes@mander.xyz*confused flatfish noises*
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    18 days ago

    By far. We didn’t get to be #1 by fucking around, and we didn’t get to be #1 without all that dominating evolution lingering around. We’re so good at it, we’re predators to ourselves because there’s no prey left to dominate. Every other species dies farmed or as a hobby.

    But I can say, that if I were die be prey to something, I’d rather it be to a human. Everything else starts eating you before you’re even dead lol.


  • saltesc@lemmy.worldtoScience Memes@mander.xyz"Jurassic" Park
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    18 days ago

    iirc John Hammond covers this in the book. I was so young, but something is triggering it for me. Could just be the subconscious trying to protect grade 4 nostalgia, though.

    Hell, I could’ve picked that up off playing Jurassic World Evolutions in the last six months and it’s backpedal lore.

    Whatever it is, Michael Crichton was no idiot.


  • saltesc@lemmy.worldtoScience Memes@mander.xyz*confused flatfish noises*
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    18 days ago

    I think that’s specific to mammals. Just off the top of my head…

    Invertebrates? No. All out

    Fish? No. Also a Hammerhead would’ve really sold this comic lol.

    Birds? No. Though, even on the side they do often have a tilt toward frontal in a lot of predatory birds. It could be argued…

    Reptiles? No.

    Amphibians? No. There’s no even trying to place rules on that optical chaos.

    Mammals? Yeah, pretty much. Can’t think of an outlier but I’m sure there’s plenty of obvious ones.

    Edit’ Ah, there we go. Of course marine mammals are an exception. But back in land, as too are llamas. Makes you wonder…what are the llamas plotting?







  • SQL enjoyer?

    Every time I use it I feels like I’m going back to the 90s. No variables, no functions; Oh but you can do a CTE or subquery…👍

    UNION ALL, UNION ALL, UNION ALL… “There’s got to be a better way, surely…”

    looks up better way

    “Oh, what the fuck?!.. Nope, this will just be quicker…” UNION ALL, UNION ALL, UNION ALL…

    Join in a table sharing column names… Everything breaks. You gotta put the new prefixes in front of all the headers you called in now. In every select, in every where, etc… Which is weird because that kinda works like a variable and it’s fine…

    “When you see this little piece of text, it means all this, got it?”

    “Okay. Yep. Easy.”

    “So why can’t you do that with expressions?”

    SQL SCREAMS MANICALLY

    “Okay, okay, okay!.. Jesus…”

    And then you try put a MAX in a where and it won’t let you because you gotta pull all the maxes out in their own query, make a table, join them in, and use them like a filter…

    I hate it. It has speed, when you can finally run the script, but everything up to that is so…ugh.


  • saltesc@lemmy.worldtoxkcd@lemmy.worldxkcd #3169: EPIRBs
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    28 days ago

    Registration Status: Registered.
    Beacon Type: EPIRB.
    406MHz GPS (Cat. 2) 66-channel. Beacon Status: Operational.
    Battery Expiry Date: 01/10/2028.

    It’s UIN—which I obv won’t give lol— doesn’t hold an MMSI. The main reason being EPIRBs aren’t just for marine craft.


  • saltesc@lemmy.worldtoxkcd@lemmy.worldxkcd #3169: EPIRBs
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    28 days ago

    I have a handheld one—to float with me in a liferaft, etc—and it gets registered to a vessel or vehicle. Whenever I want to use it on something different, contact the federal government, advise of the new vessel ID or vehicle registration, and it’s now associated with the new one.

    I don’t think it matters much since it is a beacon after all, but I think it helps in searching. Also, a lot of other details are registered along with it so they know who to send the tens of thousands in fines to if I somehow bypass all three “Are you really sure?” switches and fire the thing off inappropriately.