• AnarchistArtificer@lemmy.world
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    2 days ago

    I don’t think that’s right. The post that you linked to includes this link, which includes this snippet:

    "First, instead of labeling coordinate axes with X, Y and Z, we’re introducing more descriptive axis names:

    Left (was -Y)

    Up (was Z)

    Forward (was X) "

    • Philippe23@lemmy.ca
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      2 days ago

      I don’t follow why that means I’m wrong.

      “Was” here refers to their old Z-Up, left-handed coordinates, where X was forward, Y was right, and Z was up.

      • AnarchistArtificer@lemmy.world
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        2 days ago

        You’re right that I didn’t sufficiently consider the “was” in that sentence. Perhaps there’s something I’m missing though, because I haven’t seen anything that would suggest X is left. When I put my right hand in the position indicated in the OP, my index finger (Y) points upwards, with my thumb (X) pointing right, making an L shape. My middle finger (z) comes out towards me.

        However, most of my experience with coordinate systems is with abstract, mathsy stuff, and I don’t have much experience with any of these softwares; there may be something obvious that I’m missing.

        • Philippe23@lemmy.ca
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          1 day ago

          You can spin your hand 180° around Y (index / up). Then Z (middle) points away from you, “forward”. And X (thumb) will point left.

          Thus the “Left-Up-Forward” + Right-handed.