hi, I'm from China.I want to produce a rotate taiji animation by shoes.But I found 2 problems.
1st,there is no fill() method(filled an enclose area with specified color) in shoes.So I have to first draw black area,then draw a white semi-circle to erase part of black area to produce Taiji map.Maybe someone has better method. 2nd,to make rotate animation,I draw a taiji map then rotate a certain angle in each step.The angle increased relate to time.Without animate,the taiji map was displalyed in correct rotated angle.But when I add animate method,the taiji does not rotate as I expected.Sometimes it rotate clockwise,sometimes it rotate anti-clockwise.I don't know why. ruby code in attachment. Jason Zhou
taiji.rb
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