can plot only one time in windows

Hi,

I can plot only one time in windows. The second time, the window appears without the tools and when I click on the windows it become white and freezes. Here is a code :

from pylab import *
x=arange(5)
y=x*x
plot(x,y)
show()
plot(x,y)
show()

Emmanuel Favre-Nicolin wrote:

Hi,

I can plot only one time in windows. The second time, the window appears without the tools and when I click on the windows it become white and freezes. Here is a code :

from pylab import *
x=arange(5)
y=x*x
plot(x,y)
show()
plot(x,y)
show()

Emmanuel:

Quoting from the the FAQ (http://matplotlib.sourceforge.net/faq.html):

" It is possible to force matplotlib to draw after every command, which is what you want in interactive mode <http://matplotlib.sourceforge.net/interactive.html>, but in a script you want to defer all drawing until the script has executed. This is especially important for complex figures that take some time to draw. 'show' is designed to tell matplotlib that you're all done issuing commands and you want to draw the figure now. In the TkAgg backend, which can be used from an arbitrary python shell interactively, it also sets interactive mode. So you can launch your script with python -i myscript.py -dTkAgg and then change it interactively from the shell. IMPORTANT: show should called at most once per script and it should be the last line of your script. At that point, the GUI takes control of the interpreter. If you want to force a figure draw, use draw <http://matplotlib.sourceforge.net/matplotlib.pylab.html#-draw> instead."

-Jeff

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Jeffrey S. Whitaker Phone : (303)497-6313
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