Option Explicit
'Script written by <David Mans>
'Script copyrighted by <Neoarchaic Studio>
'Script version Monday, February 02, 2009 8:11:02 PM

Call Main()
Sub Main()
	Call Rhino.EnableRedraw(False)
	Call butterflyCurve(5, 2, 1000)
	Call Rhino.EnableRedraw(True)
End Sub
Function butterflyCurve(a,b, count)
	butterflyCurve = Null
	'r = radius: t = turns
	Dim i, q, t, x, y, z, arrOutput
	ReDim arrOutput(count)
	q=0
	
	For i = 0 To 1 Step 1/(count-1)
		t = 2*PI*b*i
		x= a*(sin(t)*(exp(cos(t))-2*cos(4*t)-sin(t/12)^5))
		y= a*(cos(t)*(exp(cos(t))-2*cos(4*t)-sin(t/12)^5))
		z= 0
		arrOutput(q) = array(x,y,z)
		Call Rhino.addpoint(arrOutput(q))
		q=q+1
	Next
	butterflyCurve = arrOutput
End Function