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()
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