June 24, 2009
Still messing around with Spirograph...
What if I had multiple generations of dial drawing patterns? Well in that case, I cannot rely on math functions for Spirographing. Basically I have to employ recursion function in VB, which confused a good chunk of my brain. Drawing diagrams and breaking code into a little tasks definitely helps and here is what I came up with.
(left) Dials rotate along each parent's perimeter by an user defined angle. (right) User defines a dbl revolution for the first dial. The following dials rotate according to the arc length.
dblRev = 1 for 360deg. Initial dial revolution (dblRev) changes from 0.1 to 0.5. These steps become animation frames.