Thank you very much Steve! This helped a lot, it worked in the ipython as well,
there is no difference, only that the ipython is interactive and has more
supplementary features. :)
Thanks,
Tomislav
----- Original Message -----
From: Stephen George
Sent: 04/21/10 03:33 AM
To: matplotlib-users@lists.sourceforge.net
Subject: Re: [Matplotlib-users] plotting in a loop
Hi,
Sorry haven't used ipython, so not sure if there is another/better ipython way.
Attached is how I solved it in normal python.
I added a "next line" button to the graph, and set the ydata for the line each
time the button is pushed.
There is a couple of set_ylim lines commented out, depending on the nature of
your data, it might be appropriate to uncomment one of those, however the
set_aspect line may might mean the graph is very tall and skinny with the
supplied data.
Hope that gives you some ideas for your own code.
Steve
On 21/04/2010 3:35 AM, tomislav_ma...@gmx.com wrote: Hello everyone,
if I read a column file like this (simplified to integers):
0 1 2 3
1 2 3 4
2 3 4 5
3 4 5 6
with: "data = np.loadtxt("fileName")", why can't I use a for loop inside
ipython (started with "-pylab" option) to plot each of the Line2D objects and
then draw them on the plot? I am using matplotlib to debug a computational
geometry code and I would like these lines to plot paused by the user input so
that I can identify when (where) exactly the wrong calculations happen:
import numpy as np
import matplotlib.pyplot as plt
fig1 = plt.figure()
ax1 = fig1.add_subplot(111)
ax1.set_aspect("equal")
for line in data:
raw_input("press enter to plot the line")
ax1.plot([line[0],line[2]],[line[1],line[3]],'b')
plt.draw()
This way I could see with pressing e.g. the return key when my calculations go
wrong.... any advice?
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