1. Be civil
No trolling, bigotry or other insulting / annoying behaviour
2. No politics
This is non-politics community. For political memes please go to !politicalmemes@lemmy.world
3. No recent reposts
Check for reposts when posting a meme, you can only repost after 1 month
4. No bots
No bots without the express approval of the mods or the admins
5. No Spam/Ads/AI Slop
No advertisements or spam. This is an instance rule and the only way to live. We also consider AI slop to be spam in this community and is subject to removal.
A collection of some classic Lemmy memes for your enjoyment
Technically, there's a lot more options. Any axis can have any name. The reason why these two main systems exist is because of 2D coordinates.
A 2D coordinate system can either be viewed top-down (piece of paper on a table) or from the front (pixels on a screen). So while X stays the same in both of these options (and thus isn't contested in 3D coordinates), Y is either up (on a screen) or ahead (on paper), and Z then gets whatever axis is left over.
Don't forget the handedness of each coordinate system!
Minecraft
Z IS UP AND ALSO IT'S BLUE
Why would you represent Z with Y?
<i,j,k> vector master race.
I am the latter, because if I draw a X-Y plane and lay it on the ground, it aligns with that XYZ reference frame.
There are clearly more than two. In the top image that z-axis is pointing in the wrong direction.
Unless you're into magnetic resonance and use rotating frames:
x in red and z in blue please..., this is difficult to look at. My conventions !
uff. this is very hard.
I'm the bottom person. X and Y need to be on the same plane.
Technically, regardless of dimensions, x and y always make/share a plane.
But I agree with you, I always imagine Z as jutting out from the plane x and y make.
This reminds me of the time when I was in an industry robotics, there were a right hand rule where Z was your thumb up and X and Y your index and middle fingers. So I think the second one is the right, but it should have been drawn other way round.
My son and I have had this very argument. I think the top one is right as he thinks it's the bottom one. I have a coding background and he has a 3D printing background. I figure that's why we're different but I know nothing about 3D printing beyond the cool stuff I see on the Internet and things he's printed for me.
I have a looking-at-the-chalkboard-in-highschool background which I’m pretty sure defines my perspective(heh).
Basically: Platformer vs Top-Down, which would you choose if you were forced to make/play a game 2D only