What is this shape called?

Discussion in 'Design and Graphics' started by FourCandles, Nov 4, 2010.

  1. macrumors 6502a

    Joined:
    Feb 10, 2009
    Location:
    England
    #1
    I need look into the usage of a particular shape/design, and I really need to know what it’s called - if it has a name - before I can even search for it.

    Here’s a quick sketch:

    Circle-Square.png

    So, it’s formed from a circle, and overlaid with a square with the length of the sides equal to the radius of the circle, so that the corner of the square is at the centre of the circle.

    However, It’s not in any of the lists of geometric shapes that I’ve seen, maybe because it’s not a geometric shape with an equation to produce it.

    Does anyone know if there’s a name for this shape? Many thanks.
     
  2. macrumors 6502a

    Joined:
    Oct 13, 2008
    Location:
    Wellington, New Zealand
    #2
    I am not sure what its proper name is, but it has quite a history!

    I am thinking of the whole "new quark" logo that had to be changed because of copyright infringement issues:

    http://inko9nito.wordpress.com/2007/10/16/quark-vs-scottish-arts-council/
     
  3. thread starter macrumors 6502a

    Joined:
    Feb 10, 2009
    Location:
    England
    #3
    That's a great link, I see there's lots of other usage of the shape and its derivatives in the article too. Many thanks.
     
  4. macrumors newbie

    Joined:
    Jul 20, 2009
    #4
    The closest I could figure is a teardrop, though the point isn't up on your example.
     
  5. macrumors 6502

    Joined:
    Jun 8, 2009
  6. Guest

    #6
    no idea what its called, but have lots of derivatives (including this actual shape itself) in illustrator if anyone wants.

    PM me
     
  7. thread starter macrumors 6502a

    Joined:
    Feb 10, 2009
    Location:
    England
    #7
    I think technically the teardrop is a different mathematical shape - see here for the equation - and I don’t think you can have a value of m in that equation that will give the perfectly straight sides (as you can gather I’ve re-learnt a lot of geometry just recently!). But thanks for the replies.


    Thanks - I've created it OK, but that's then triggered the questions about prior usage that prompted my thread.
     
  8. Guest

    #8
    There is an equation you can use to create this shape, but I'll leave the working out to you ;-)

    Heres a diagram that will help!
     

    Attached Files:

  9. Guest

  10. macrumors 68040

    ezekielrage_99

    Joined:
    Oct 12, 2005
  11. macrumors 6502a

    Joined:
    Jun 27, 2010
    #11
    I don't know anything about illustrator. But I know about math.

    You can make this curve from multiple piecewise curves. Basically a 3/4th circle and 2 lines.

    Yeah you figure out those equations ;)
     
  12. macrumors newbie

    Joined:
    Nov 4, 2010
    #12
    I've searched wikipedia but I couldn't find anything looking like this...Actually I think that there is not an official name for this shape.The only information I was able to find is just the mathematical way you can shape it.I hope I helped you a bit:)

    Click here
     
  13. macrumors 604

    chrono1081

    Joined:
    Jan 26, 2008
    Location:
    Isla Nublar
    #13
    Pfft! Maple will figure it out for me! (I don't know enough math to use Mathematica :p )
     
  14. macrumors 6502a

    Joined:
    Jun 27, 2010
    #14
    Why even that? A simple pen and paper + 2000 year old math is enough to do this.
     

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