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    aumr61's Avatar
    aumr61 Posts: 1, Reputation: 1
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    #1

    Feb 15, 2009, 12:33 PM
    Center of rotation
    How do I find the centre of rotationof a polygon rotated about a centre other than the origin.
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #2

    Feb 15, 2009, 12:59 PM

    I would find the center of 2 sides, and use a square to come 90 degrees off the center of the 2 sides, the center will be where they intersect.
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #3

    Feb 16, 2009, 08:48 AM
    I would translate the coordinates so it is rotating about the origin.
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #4

    Feb 16, 2009, 09:28 AM

    galactus IS the math expert, probably speaking more your language.
    Check this out:
    Geometry Session 7, Part B: Rotation Symmetry
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