[Matplotlib-users] Example showing differences between Mac O$ and Windows use

[Christophe B. <pro...@gm...>]

Hello,
I'm a little disappointed by the following test program coming from this
post <http://stackoverflow.com/a/22380683/1054158>.

What are the technical reasons that make fail the following code under Mac
O$ ?

Best regards.
Christophe BAL

---- TEST ---

from random import randint, choiceimport timeimport matplotlib.pyplot
as pltimport matplotlib.patches as mpatches

back_color = "black"
colors     = ['red', 'green', 'cyan', 'yellow']
width, height = 16, 16

fig, ax = plt.subplots()
ax.set(xlim=[0, width], ylim=[0, height]) # Or use "ax.axis([x0,x1,y0,y1])"
# Be sure to draw the canvas once before we start blitting. Otherwise#
a) the renderer doesn't exist yet, and b) there's noting to blit onto
fig.canvas.draw()
def update():
    x = randint(0, width - 1)
    y = randint(0, height - 1)

    rect = mpatches.Rectangle(
        (x, y), 1, 1,
        facecolor = choice(colors),
        edgecolor = back_color
    )
    ax.add_artist(rect)

    start = time.time()
    ax.draw_artist(rect)
    fig.canvas.blit(ax.bbox)
    print("draw >>>", time.time() - start)

timer = fig.canvas.new_timer(interval=1)
timer.add_callback(update)
timer.start()

plt.show()