By the way, if you are younger than me you might not have played with Spirographs. It consisted of a set of larger and smaller cogs, which fitted into each other, and some coloured pens. Stick Pen into Hole; Rotate Round and Round. Oh the endless possibilities! (if you don't get bored quickly)
I do remember thinking about how to calculate the number of rotations needed for the more complicated roses, but that was way before I could appreciate terms like ".. is an incompletehttp://mathworld.wolfram.com/IncompleteEllipticIntegraloftheSecondKind.htmlelliptic integralhttp://mathworld.wolfram.com/IncompleteEllipticIntegraloftheSecondKind.htmlofhttp://mathworld.wolfram.com/IncompleteEllipticIntegraloftheSecondKind.htmlthehttp://mathworld.wolfram.com/IncompleteEllipticIntegraloftheSecondKind.htmlsecondhttp://mathworld.wolfram.com/IncompleteEllipticIntegraloftheSecondKind.htmlkind." ...
This is what a Spirograph looks like:
(But my computerized version requires you to acquire ink stained hands in some other way.)
(Ed. Image on my own little space on the web; why does "Insert Image" insert the questy mark icon!?)
Wow! Very cool!
I'll try to forge some hryvnas with it.
this reminds me of the NINA script which was in the Real World InDesign CS3 book...(page 778)
Amazing ! Great job !
Listed on scriptopedia asap !
Really? I read the original Real World CS, after that I figured I knew everything I had to know
Well, I guess I have to make it better then: a version with a simple dialog and with the option of supplying different numbers for the horizontal and vertical width can be downloaded from http://www.jongware.com/binaries/spirograph.zip.
By the way: that proves I have no clue as to how it works, because I expected the rosettes to be 'just' ellipsoid instead of round. However, entering "-80" as the 'radius 2' gives this fascinating result.
The reference cogs (those without the pen) were fixated on the paper with needles / pins, of course that required a layer of cardboard below the paper.
There were multiple holes in the cogs with different distance from the center, so you could get thru with very few iterations (e.g. even 3 spins) per path, then slightly vary the distance and color and restart. Another possibility to vary here - you'd offset the pen cog by one step after completion of a path, and eventually combine that with different distances.
Aside from your ellipsis distortion, advanced patterns could also be done with multiple reference cogs positioned next to each other so your pen cog could run around the whole group of them. There were also a few different shapes - at least one straight line (of course with round caps) and a ring where the drawing cog was moving inside. If you were careful you could even use the ring for drawing, but it would just too easily jump away from the pinned cog.
I still mainly remember the incredibly cheap pens that came with the set, causing stains all over the paper, my hands, my clothes ...
Useful addition: you can enter a repeat count -- the pattern gets rotated on each iteration. Each new pattern automatically picks up the next color in your swatch panel. If you want to use some color set you created, don't tick the "New document" box because that'll make it use the app default set.
http://www.jongware.com/binaries/spirograph.zip is updated, and this is what it creates with a cyan-to-green color spread:
the new one also works in CS3 too, which is a bonus. once i understood what the dialogs meant, was really easy to use.
wish i could write scripts like that... best i can do is adjust the find/change by list one...
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Zoomed in on my left eye:
Theun, you have way too much time on your hands...
I feel like I'm a little late to the party, but just had to add my thanks! Spirograph was one of my all-time favorite activities as a kid (yes, many many years ago...). Finding this after a long sleepless night of work really made my day/night/day.
I would store the paramters in the document somewhere.
How did I miss this earlier? As you'd expect from me, given my obsession with geometric art, I think this is exceptionally cool.
re: storing parameters
In one version the NINA script, I just stuff the parameters into custom script labels. That way, I can populate the UI with the original values when I run the script with one of the objects selected. Very handy.
The NINA script examples are still in the CS5 version of the book, by the way!
Olav Martin Kvern wrote:
How did I miss this earlier?
Probably too busy playing with the CS SDK...