gistfile1.py

	for i in range(0, len(sample_data) - 2):
		x0, y0 = mat.transform_point(*sample_data[i])
		x1, y1 = mat.transform_point(*sample_data[i+1])
		x2, y2 = mat.transform_point(*sample_data[i+2])
		#cr.arc(x0, y0, 6, 0, 2 * math.pi)
		#cr.fill()

		qx1 = (x1 - x0) * fit + x0
		qy1 = (y1 - y0) * fit + y0

		qx2 = (x1 - x2) * fit + x1
		qy2 = (y1 - y2) * fit + y1

		cr.curve_to(qx1, qy1, qx2, qy2, x1, y1)
	#cr.line_to(*mat.transform_point(*sample_data[-1]))
	cr.stroke()

	cr.set_source_rgba(0, 0, 1, 0.6)
	for x, y in sample_data[:-1]:
		x, y = mat.transform_point(x, y)
		cr.move_to(x, y)
		cr.arc(x, y, 4, 0, 2 * math.pi)
		cr.fill()