Many logos, drawings and other graphical designs have the following shape in it. What is this shape? If you thought: "Ah-ha! I'm smart and r...
  • jplate8@lemmy.world
    53·
    9 months ago

    Okay but raster images can’t represent circles either, since they’re just approximations using squares

    • zero_iq@lemm.ee
      281·
      9 months ago

      And many “circles” aren’t circles either, but 2D torus approximations. The edge of a true circle is made of infinitesimally small points so would be invisible when drawn. And even if you consider a filled circle, how could you be sure you aren’t looking at a 1-torus with an infinitessimally small hole? Or an approximation of all the set of all points within a circle?

      Clearly, circles are a scam.

      • Kogasa@programming.dev
        18·
        9 months ago

        A 1-torus is a circle, you mean an annulus. You do NOT want to make this mistake at a topologist dinner party, trust me.

        • zero_iq@lemm.ee
          4·
          9 months ago

          Damn, so what’s the name of the shape that’s a flat donut with an inner and outer circular perimeters? i.e. a filled circle with another smaller radius circular area subtracted from it. Or 2D cross section of a torus seen perpendicularly to the plane that intersects the widest part of the torus. A squished donut, or chubby circle, if you like.

  • clemdemort@lemmy.world
    38·
    9 months ago

    Well I’d argue vector image can represent a real circle but what’s on the screen will never be one.

    Also why is this on Lemmy Linux?

  • CloverSi@lemmy.comfysnug.space
    36·
    9 months ago

    Titles like this annoy me. If you have something interesting to say - which is the case here - say what it is. No need to obfuscate the topic. It wastes time for everyone.

    Anyway, it’s kinda hilarious that the only way to make a proper circle in PDFs is with line caps. What a bizarre format. I hope it’s succeeded by something better sooner rather than later, I can’t think of any time they haven’t been a pain to work with.

    • QuazarOmega@lemy.lol
      10·
      9 months ago

      What a bizarre format.

      You should have seen my face when I discovered that it even supports 3D graphics, but you can probably count the functional readers on your fingers… and they’re all proprietary.
      Honestly not surprised, PDF feels like a taped together format that is at the whims of Adobe, supporting all those exotic features would be hell and I would not want to be in the position of the person who takes care of that. At this point it feels like a shittier website without responsiveness

  • hallettj@beehaw.orgEnglish
    6·
    9 months ago

    I’ve been saying this for years! If properties of a shape cannot be expressed with finite precision then how can that shape exist in a universe with clunky restrictions like the planck length?