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Thread: Fibonacci Curve

  1. #21
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    Default Re: Fibonacci Curve

    My first thought:

    Click image for larger version. 

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  2. #22
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    Default Re: Fibonacci Curve

    Quote Originally Posted by ernie-f View Post
    My first thought:

    Click image for larger version. 

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    Nice try, ernie.

    But, that's not a Fibonacci Curve.
    That's just a curve that's getting bigger exponentially.
    I tried that.
    And if you have a go, then try and put your exponential curve over the top of a Fibonacci Curve, then you'll see that they are not the same.

    Featured Artist on Xara Xone . May 2011
    . A Shield . My First Tutorial
    . Bottle Cap . My Second Tutorial on Xara Xone

  3. #23
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    Default Re: Fibonacci Curve

    In all the time we have been going round and round you could have created the world's most exquisite Finonacci curve Rik.
    Gary W. Priester
    Mr. Moderator Emeritus Dude
    , Sir

    gwpriester.com | Custom-Stereograms.com | eyeTricks on Facebook






  4. #24
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    Info Re: Fibonacci Curve

    I lifted this SVG from: http://www.bytemuse.com/post/fibonacci-spiral/.

    Fibonacci Curve from Ruby code to SVG Output.xar

    I saved the <svg> HTML as a SVG file and dropped into Xara.
    This give the black blob, which I set to be no fill, solid 2pt line and scaled.

    The one here is 13 separate curves all grouped: http://www.downloadclipart.net/downl...cci-spiral-svg.

    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. #25
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    Default Re: Fibonacci Curve

    Quote Originally Posted by gwpriester View Post
    In all the time we have been going round and round you could have created the world's most exquisite Finonacci curve Rik.
    And miss out on all the dialogue and the suggestions from members and see if there is another way, rather than mine, to draw it?!

    Featured Artist on Xara Xone . May 2011
    . A Shield . My First Tutorial
    . Bottle Cap . My Second Tutorial on Xara Xone

  6. #26
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    Default Re: Fibonacci Curve

    I think the Fibonacci spiral on its own is not that great looking. The curve looks better when constructed without the grid of the golden section rectangle. Just my personal opinion of course.

    The curve posted by Ernie is much more pleasing to the eye. Just my opinion of course.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Gary W. Priester
    Mr. Moderator Emeritus Dude
    , Sir

    gwpriester.com | Custom-Stereograms.com | eyeTricks on Facebook






  7. #27
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    Default Re: Fibonacci Curve

    Problem with trying to use Xara's smooth bezier curves is they're not very good. Try creating a circle from four lines, converted to smooth curves. Definetly not a circle.

    Inkscape has a better tool using it's spiro beziers.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Egg

    Intel i7 - 4790K Quad Core + 16GB Ram + 232 GB SSD + 250 GB SSD portable drive
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  8. #28
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    Default Re: Fibonacci Curve

    Quote Originally Posted by Egg Bramhill View Post
    Problem with trying to use Xara's smooth bezier curves is they're not very good. Try creating a circle from four lines, converted to smooth curves. Definetly not a circle.

    Inkscape has a better tool using it's spiro beziers.
    Maybe Xara could have developed such tools also?!

    Featured Artist on Xara Xone . May 2011
    . A Shield . My First Tutorial
    . Bottle Cap . My Second Tutorial on Xara Xone

  9. #29
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    Default Re: Fibonacci Curve

    Yes, with the spxe for Xara You couldn't be precise. To make with this tool a perfect fibonacci curve Yuo may be able to put in the parameter of 1.68034 for the curvator and set the begining to 90.

    I made 6 years ago a videotut on vimeo how to in Illustrator https://vimeo.com/46122411. Illustrator has the segmentcurve tool, so it is easy doingt it.
    In Xara I cut out a segment from a circle. Here a quick and dirty tutorial for Xara: https://www.franta-net.de/snagit/fibonacci-xara.mp4

  10. #30
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    Default Re: Fibonacci Curve

    Quote Originally Posted by ernie-f View Post
    Yes, with the spxe for Xara You couldn't be precise. To make with this tool a perfect fibonacci curve Yuo may be able to put in the parameter of 1.68034 for the curvator and set the begining to 90.

    I made 6 years ago a videotut on vimeo how to in Illustrator https://vimeo.com/46122411. Illustrator has the segmentcurve tool, so it is easy doingt it.
    In Xara I cut out a segment from a circle. Here a quick and dirty tutorial for Xara: https://www.franta-net.de/snagit/fibonacci-xara.mp4
    Nice one, ernie.
    I like it.

    I'll have to give it a go in Illustrator and see how I get on.
    I've never really used Illustrator much. But, it seems that there's a 'curve' tool. That seems to make the job a lot easier.

    Featured Artist on Xara Xone . May 2011
    . A Shield . My First Tutorial
    . Bottle Cap . My Second Tutorial on Xara Xone

 

 

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