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  1. #1
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    Question Circle through 3 Points

    This Challenge may seem obscure but I can imagine it happening for a website design.

    Can you Xara-construct a circle whose edge touches three arbitrary points?
    The points cannot all lie on the same straight line or create a circle that exceeds Xara's largest dimensions.

    Here is a benign example:
    Click image for larger version. 

Name:	3-Point Circle.jpg 
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    You points can instead be the the corners of any triangle.

    Acorn
    Acorn - My currently active Xara software: occasionally serviced XDPX, purposely unserviced XDPX12 & XDPX11 (32/64-bit), unserviced XWD Premium 15 & 12, XPGD10, X3D7 and lots of 'permanently-owned' licences back through time (to CC's Artworks)

  2. #2
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    Default Re: Circle through 3 Points

    This is a little nudge.

    Another view of the problem.
    Starting with only the RGB small circles, place a yellow circle that cut through each of the RGB centres:

    Click image for larger version. 

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    Happy for an explanation of your method but i would prefer a visual answer.

    Acorn
    Acorn - My currently active Xara software: occasionally serviced XDPX, purposely unserviced XDPX12 & XDPX11 (32/64-bit), unserviced XWD Premium 15 & 12, XPGD10, X3D7 and lots of 'permanently-owned' licences back through time (to CC's Artworks)

  3. #3
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    Default Re: Circle through 3 Points

    I'm not sure of what you were asking Acorn but here's how I saw it and went about it You can shift click to place the large circle cutting through the centre of the three small ones or touching the outer or inner edges.

    Stygg
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Attached Files Attached Files

  4. #4
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    Default Re: Circle through 3 Points

    Quote Originally Posted by stygg2003 View Post
    I'm not sure of what you were asking Acorn but here's how I interpretated it and went about it
    Stygg
    Stygg, sorry but I think you have missed the point(s)!

    The leftmost diagram is the accurate one. I used blobs rather than points just to make them obvious.

    My question is what is your construction? If I move one of your red blobs to another place, how would you get the circle to fit?

    Cheers.
    Acorn
    Acorn - My currently active Xara software: occasionally serviced XDPX, purposely unserviced XDPX12 & XDPX11 (32/64-bit), unserviced XWD Premium 15 & 12, XPGD10, X3D7 and lots of 'permanently-owned' licences back through time (to CC's Artworks)

  5. #5
    Join Date
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    Default Re: Circle through 3 Points

    ah well, back to the think tank

    Stygg

 

 

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