Spyder is not displaying Matplotlib 3d plots in its Python consoles

[s0r2637]

I tried the following set of commands in the Spyder-2.3.4 console and it doesn't display a 3d plot. It works fine when I run it outside Sypder-2.3.4. Your help is highly appreciated.

import numpy
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D

# Set up grid and test data
nx, ny = 256, 1024
x = range(nx)
y = range(ny)

data = numpy.random.random((nx, ny))

hf = plt.figure()
ha = hf.add_subplot(111, projection='3d')

X, Y = numpy.meshgrid(y, x)  # `plot_surface` expects `x` and `y` data to be 2D
ha.plot_surface(X, Y, data)

plt.show()

[ccordoba12]

What console are you using? Python or IPython?

[s0r2637]

Python.

Srini
On May 4, 2015 6:15 PM, "Carlos Cordoba" notifications@github.com wrote:

What console are you using? Python or IPython?

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#2402 (comment).

[ccordoba12]

For next time, please the Report bug menu entry, under the Help menu :-)

Are you using Python 2 or Python 3?

[s0r2637]

Sure. I will do that. I am using Python 2.7

Srini
On May 4, 2015 6:31 PM, "Carlos Cordoba" notifications@github.com wrote:

For next time, please the Report bug menu entry, under the Help menu
:-)

Are you using Python 2 or Python 3?

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#2402 (comment).

[ccordoba12]

I can confirm this problem. We'll see what we can do about it :-)

[ccordoba12]

This is not an error in Spyder. You just need to use

plt.draw()

instead of

plt.show()

as the last line of your example to make the plot appear.

Here is an explanation of the difference between the two:

http://stackoverflow.com/a/23141491/438386

Given that in interactive mode (i.e. introducing each command at a time), you generate an empty figure first (with hf = plt.figure()), I think you need to call plt.draw() to redraw it later.

[s0r2637]

Thanks! I will look into this.

Srini

On Sun, Jun 7, 2015 at 6:05 PM, Carlos Cordoba notifications@github.com
wrote:

This is not an error in Spyder. You just need to use

plt.draw()

instead of

plt.show()

as the last line of your example to make the plot appear.

Here is an explanation of the difference between the two:

http://stackoverflow.com/a/23141491/438386

Given that in interactive mode (i.e. introducing each command at a time),
you generate an empty figure first (with hf = plt.figure()), I think you
need to call plt.draw() to redraw it later.

—
Reply to this email directly or view it on GitHub
#2402 (comment).