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snippet_normalize(cr, width, height)
def path_ellipse(cr, x, y, width, height, angle=0):
"""
x - center x
y - center y
width - width of ellipse (in x direction when angle=0)
height - height of ellipse (in y direction when angle=0)
angle - angle in radians to rotate, clockwise
"""
cr.save()
cr.translate(x, y)
cr.rotate(angle)
cr.scale(width / 2.0, height / 2.0)
cr.arc(0.0, 0.0, 1.0, 0.0, 2.0 * M_PI)
cr.restore()
path_ellipse(cr, 0.5, 0.5, 1.0, 0.3, M_PI/4.0)
# fill
cr.set_source_rgba(1,0,0,1)
cr.fill_preserve()
# stroke
# reset identity matrix so line_width is a constant
# width in device-space, not user-space
cr.save()
cr.identity_matrix()
cr.set_source_rgba(0,0,0,1)
cr.set_line_width(3)
cr.stroke()
cr.restore()
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