### drawnow for matplotlib
Matlab® has a great feature where it allows you to update a figure. You can simply call drawnow and have your figure update. This is nice if you’re running a simulation and want to see the results every iteration. It’d sure be nice if Python/matplotlib had a similar feature to update the plot each iteration. This feature adds that functionality to matplotlib.
from drawnow import refresh ion() # enable interactivity, can be default x = zeros((N,N)) def function_to_draw_figure(): #figure() # don't call, otherwise new window opened imshow(x) # python's global scope #show() # don't call show()! figure() for i in arange(x): x.flat[i] = 1 refresh(function_to_draw_figure) #show()
If you want to wait for confirmation after update, call refresh(function_to_draw_figure, confirm=True).
If you only want to show the figure once, call refresh(function_to_draw_figure, show_once=True)
- Download this repository and run python setup.py install.
- Run pip install drawnow.