On Wed, Aug 19, 2009 at 3:25 PM, Christophe
Dupre wrote:
> I just saw the email below from John, and I was wondering why using compound
> paths are "goo-gobs" faster than using rectangles(patches)?
>
> I've been using the candlestick function quite a bit lately. I guess using
> compound paths could
x27;ll give it a try.
Regards,
Christophe
-Original Message-
From: John Hunter [mailto:jdh2...@gmail.com]
Sent: Sat 08/08/2009 09:00
To: Kaushik Ghose
Cc: matplotlib-users@lists.sourceforge.net
Subject: Re: [Matplotlib-users] animate histogram
On Sat, Aug 8, 2009 at 6:17 AM, Kaushik
G
On Tue, Aug 18, 2009 at 1:53 PM, Alan G Isaac wrote:
> 2. This is pretty fast. Would there be additional
> speed gains to blitting, and if so, how would it
> be done? (I'm just asking for clues, not a complete
> example.)
Blitting will improve the performance when significant portion of your
plo
On Tue, Aug 18, 2009 at 12:53 PM, Alan G Isaac wrote:
> OK, I mostly understand John's example and have
> adapted it in the attached Histogram class, for
> whoever might care. (The file is a working
> example.) Thanks!
>
> Here are my remaining questions.
>
> 1. To get a new histogram, I just chan
Ooops, forgot the attachment.
Alan
"""
Adapts John Hunter's example of how to use a path patch to draw a bunch of
rectangles for an animated histogram
"""
import Tkinter as tk
import numpy as np
import matplotlib as mpl
mpl.use('TkAgg')
from matplotlib.backends.backend_tkagg import FigureCanvasT
OK, I mostly understand John's example and have
adapted it in the attached Histogram class, for
whoever might care. (The file is a working
example.) Thanks!
Here are my remaining questions.
1. To get a new histogram, I just change the
data in the vertices object and then ask my
FigureCanvasTkAg
On 8/8/2009 10:09 AM John Hunter apparently wrote:
> Here is the corrected example:
Seems perfect!
Time to study it.
Thanks!
Alan
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On Sat, Aug 8, 2009 at 9:00 AM, John Hunter wrote:
> """
> This example shows how to use a path patch to draw a bunch of
> rectangles for an animated histogram
> """
Oops, in my last post I have the timer logic wrong because the call is
non-blocking so the animation ran too fast -- a rare occurre
On Sat, Aug 8, 2009 at 6:17 AM, Kaushik
Ghose wrote:
> (http://matplotlib.sourceforge.net/api/artist_api.html#matplotlib.patches.Rectangle)
> e.g. set_height() to change the rectangles?
>
> e.g. code
> --
> import pylab
> x = pylab.rand(20)
> h = pylab.hist(x)
> h[2][0]
Hi Alan,
Alan G Isaac wrote:
> This is a second plea for help.
> http://www.mail-archive.com/matplotlib-users@lists.sourceforge.net/msg12632.html
>
> I have a figure.Figure embedded in a FigureCanvasTkAgg.
> Each iteration, new data are received,
> and I want an updated histogram.
>
> Now I can
This is a second plea for help.
http://www.mail-archive.com/matplotlib-users@lists.sourceforge.net/msg12632.html
I have a figure.Figure embedded in a FigureCanvasTkAgg.
Each iteration, new data are received,
and I want an updated histogram.
Now I can at least see a way to do this with pyplot:
I j
Animating a line plot is well covered in the Cookbook:
http://www.scipy.org/Cookbook/Matplotlib/Animations
Can anyone offer a hint or two for animating a histogram?
Thanks,
Alan Isaac
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