SpinArt Terms

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Anchor
The anchor represents the fixed wheel around which the art is drawn. In Spirograph™ terms, it is the ring you pin to the page before you start to draw.

Runner
The runner represents the wheel that moves around the anchor, rotating to create the art.  In Spirograph™ terms, it is the smaller gear with pen holes you moved around the paper. You can locate the runner either inside or outside of the anchor.

Turbo Runner
An alternate drawing mode. The program makes the runner spin extra fast as it moves around the anchor; faster than if it was locked by physical gear teeth to the anchor. It creates many more loops in the art which provides good variety.


Pixel
A smallest possible dot of color/light in a computer picture.
For example this letter O is 10 pixels across. The radius of the anchor and radius of the runner, and the pen location, are entered as a number of pixels.

Radius
The constant measure of distance from the center of a circle to its outer edge (the outer edge is called the perimeter)
.