rasterfairy.py 文件源码

def getBestCircularMatch(n):
    bestc = n*2
    bestr = 0
    bestrp = 0.0

    minr = int(math.sqrt(n / math.pi))
    for rp in range(0,10):
        rpf = float(rp)/10.0
        for r in range(minr,minr+3):
            rlim = (r+rpf)*(r+rpf)
            c = 0
            for y in range(-r,r+1):
                yy = y*y
                for x in range(-r,r+1):
                    if x*x+yy<rlim:
                        c+=1
            if c == n:
                return r,rpf,c

            if c>n and c < bestc:
                bestrp = rpf
                bestr = r
                bestc = c
    return bestr,bestrp,bestc