Irregular shaped buttons redux

[Scott Rossi]

Recently, Judy Perry wrote:

> I think I've come across a situation in which I really will need an
> irregularly-shaped button.  It's for using the intersection function; it's
> okay for one of the objects to be rectangular but not the other as it
> represents 'obstacles' on an orthoscopic map.
> 
> Any ideas?

If you need to simulate collision detection with an irregular object/edge,
you could use the within() function to test a point location within a
transparent image.  The within() function will only return true when the
point is within an opaque region of the image.

Would that work?

Regards,

Scott Rossi
Creative Director
Tactile Media, Development & Design
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E: scott at tactilemedia.com
W: http://www.tactilemedia.com