Differences

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--- fractal [2011/04/12 23:28] – cedric
+++ fractal [2011/04/12 23:45] – [Mandelbrot] cedric
@@ Line 141: / Line 141: @@
 ====== Mandelbrot ======
-<code python>
-try:
-	import Numeric as nm
-except:
-	print "program requires the Numeric module"
-	print "from --> http://numeric.scipy.org/"
-	raise SystemExit
-import Tkinter as tk
-import Image # PIL
-import ImageTk # PIL
-# set width and height of window
-w ,h = 640, 600
-#w ,h = 1280, 1200
-#w ,h = 2560, 2400
-class Mandelbrot(object):
+{{:mandelbrot-python.png|}}
-	def __init__(self):
-		"""
-		Create window
-		"""
-		self.root = tk.Tk()
-		self.root.title("Mandelbrot Set")
-		self.create_image()
-		self.create_label()
-		# start event loop
-		self.root.mainloop()
-	def draw(self, x1, x2, y1, y2, maxiter=30):
-		"""
-		Draw the Mandelbrot set.
-		"""
-		xx = nm.arange(x1, x2, (x2-x1)/w*2)
-		yy = nm.arange(y2, y1, (y1-y2)/h*2) * 1j
-		q = nm.ravel(xx+yy[:, nm.NewAxis])
-		z = nm.zeros(q.shape, nm.Complex)
-		output = nm.resize(nm.array(0,), q.shape)
-		for iter in range(maxiter):
-			z = z*z + q
-			done = nm.greater(abs(z), 2.0)
-			q = nm.where(done,0+0j, q)
-			z = nm.where(done,0+0j, z)
-			output = nm.where(done, iter, output)
-		output = (output + (256*output) + (256**2)*output) * 8
-		# convert output to a string
-		self.mandel = output.tostring()
-	def create_image(self):
-		""""
-		Create the image from the draw() string
-		"""
-		self.im = Image.new("RGB", (w/2, h/2))
-		# you can experiment with these x and y ranges
-		self.draw(-2.13, 0.77, -1.3, 1.3)
-		self.im.fromstring(self.mandel, "raw", "RGBX", 0, -1)
-	def create_label(self):
-		"""
-		Put the image on a label widget
-		"""
-		self.image = ImageTk.PhotoImage(self.im)
-		self.label = tk.Label(self.root, image=self.image)
-		self.label.pack()
-if __name__ == '__main__':
-	test = Mandelbrot()
-</code