This function has an interesting level set made up by two fish ("pisces").
f(x,y) = fish * eye1 * eye2
The function is composed of these three parts:
fish = (x^3)/3 - x + alpha*y*( -1+ (alpha*y)^2*(1/6 + (alpha*y)^2*(-1/120 + (alpha*y)^2/5040)))
eye1 = ( x - xeye )^2 + (y - .5 - yeye)^2 - eyerad^2
eye2 = ( x + xeye )^2 + (y + .5 - yeye)^2 - eyerad^2
where x and y are the domain variables,
- xeye and yeye set the position of the eyes
- eyerad controls the radius of the fish eyes
- alpha controls the scale (pun intended) of the fish body
The Pisces Home Page
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Last modified: Sun Nov 26 16:29:03 1995
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