wandgiftest.py

#!/usr/bin/env python

from wand.image import Image
from wand.drawing import Drawing
from wand.color import Color
import math

def drawcircle(cx, cy, r, ns, c):
    draw.fill_color = Color(c)
    sa = 2*math.pi/ns
    for s in xrange(ns):
        x1 = cx + r*math.cos(s*sa)
        y1 = cy + r*math.sin(s*sa)
        x2 = cx + r*math.cos((s+1)*sa)
        y2 = cy + r*math.sin((s+1)*sa)
        draw.line((x1, y1), (x2, y2))

nf = 60
fa = 2*math.pi/nf

with Image(width=400, height=400) as img:
    draw = Drawing()
    drawcircle(200, 200, 100, 100, 'black')
    circle1 = draw
    circles = []
    for f in xrange(nf):
        frm = Image(width=400, height=400)
        circle1(frm)
        draw = Drawing()
        cx = 200 + 100*math.cos(f*fa)
        cy = 200 + 100*math.sin(f*fa)
        drawcircle(cx, cy, 100, 50, 'black')
        draw(frm)
        for circle in circles:
            circle(frm)
        if f % (nf/6) == 0:
            circles.append(draw)
        img.sequence.append(frm)
        img.sequence[len(img.sequence)-1].delay = 1
        print("frame %d" % f)
    del img.sequence[0]
    img.format = 'gif'
    img.save(filename="test.gif")