Masking

[brintown]

Hi there, I would like to create a pattern, and then mask that pattern with a primitive.

For example, create a field of wiggles. Then mask that pattern with a circle.

Anyone know how I could accomplish that?

[frederik]

you can use a clipPath(path) to clip a drawing inside a given bezierPath: see http://www.drawbot.com/content/shapes/drawingPath.html#drawBot.clipPath

[gferreira]

as for the wiggles, there’s a nice tutorial here.

[brintown]

thanks @frederik and @gferreira for the helpful hints!