pyplot.show

Thomas_Hrabe · September 19, 2009, 5:11am

Hi all,

I am a beginner with matplotlib and doing my first steps with python
plotting.
However, I learned that pyplot.show really forces the display of already
existing plots.

For instance, when I type
In[2]: pyplot.plot([1,2,3])
Out[2]: [<matplotlib.lines.Line2D object at 0x2e33850>]

nothing happens until I type

In[3]: pyplot.show()

After that, the interpreter halts until I close the new figure window. Only
closing enables the interpreter to continue with my later input. Moreover,
typing
In[4]: pyplot.plot([1,2,3])

again would display the figure immediately. Seems the gtk engine or
something else must be started up by pyplot.show once and, once running, it
displays everything else after that instantly.
How can I tweak pyplot in such way that it would display my figures on the
very first pyplot.plot call without halting the input?

Thank you in advance for your help,
Thomas

···

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sunqiang · September 19, 2009, 5:29am

may be you can try pyplot.ion()? it turns interactive mode on.
Hope this helps.

···

On Sat, Sep 19, 2009 at 1:11 PM, Thomas Hrabe <thrabe@…287…> wrote:

Hi all,

I am a beginner with matplotlib and doing my first steps with python

plotting.

However, I learned that pyplot.show really forces the display of already

existing plots.

For instance, when I type

In[2]: pyplot.plot([1,2,3])

Out[2]: [<matplotlib.lines.Line2D object at 0x2e33850>]

nothing happens until I type

In[3]: pyplot.show()

After that, the interpreter halts until I close the new figure window. Only

closing enables the interpreter to continue with my later input. Moreover,

typing

In[4]: pyplot.plot([1,2,3])

again would display the figure immediately. Seems the gtk engine or

something else must be started up by pyplot.show once and, once running, it

displays everything else after that instantly.

How can I tweak pyplot in such way that it would display my figures on the

very first pyplot.plot call without halting the input?

Thank you in advance for your help,

Thomas

–

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Thomas_Hrabe1 · September 19, 2009, 5:37am

Hi,

thank you for the quick reply. Unfortunately, none of both works for me.

values = [1,2,3];

pyplot.ioff();

#pyplot.ion();

print pyplot.isinteractive();

pyplot.plot(values);

pyplot.show();

The value (True|False) of interactive mode does not make a difference to the plotting.

Other suggestionst?

Thanks so far!

2009/9/19 sunqiang <sunqiang@…287…>

···

may be you can try pyplot.ion()? it turns interactive mode on.
Hope this helps.
On Sat, Sep 19, 2009 at 1:11 PM, Thomas Hrabe <thrabe@…287…> wrote:

Hi all,

I am a beginner with matplotlib and doing my first steps with python

plotting.

However, I learned that pyplot.show really forces the display of already

existing plots.

For instance, when I type

In[2]: pyplot.plot([1,2,3])

Out[2]: [<matplotlib.lines.Line2D object at 0x2e33850>]

nothing happens until I type

In[3]: pyplot.show()

After that, the interpreter halts until I close the new figure window. Only

closing enables the interpreter to continue with my later input. Moreover,

typing

In[4]: pyplot.plot([1,2,3])

again would display the figure immediately. Seems the gtk engine or

something else must be started up by pyplot.show once and, once running, it

displays everything else after that instantly.

How can I tweak pyplot in such way that it would display my figures on the

very first pyplot.plot call without halting the input?

Thank you in advance for your help,

Thomas

–

View this message in context: http://www.nabble.com/pyplot.show-tp25518658p25518658.html

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is the only developer event you need to attend this year. Jumpstart your

developing skills, take BlackBerry mobile applications to market and stay

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Thomas_Hrabe · September 19, 2009, 5:42am

Hi,

thank you for the quick reply. Unfortunately, none of both works for me.

values = [1,2,3];
pyplot.ioff();
#pyplot.ion();
print pyplot.isinteractive();
pyplot.plot(values);
pyplot.show();

The value (True|False) of interactive mode does not make a difference to the
plotting.
Other suggestionst?

Thanks so far!

···

may be you can try pyplot.ion()? it turns interactive mode on.
Hope this helps.
On Sat, Sep 19, 2009 at 1:11 PM, Thomas Hrabe <thrabe@...287...> wrote:

Hi all,

I am a beginner with matplotlib and doing my first steps with python
plotting.
However, I learned that pyplot.show really forces the display of already
existing plots.

For instance, when I type
In[2]: pyplot.plot([1,2,3])
Out[2]: [<matplotlib.lines.Line2D object at 0x2e33850>]

nothing happens until I type

In[3]: pyplot.show()

After that, the interpreter halts until I close the new figure window.
Only
closing enables the interpreter to continue with my later input. Moreover,
typing
In[4]: pyplot.plot([1,2,3])

again would display the figure immediately. Seems the gtk engine or
something else must be started up by pyplot.show once and, once running,
it
displays everything else after that instantly.
How can I tweak pyplot in such way that it would display my figures on the
very first pyplot.plot call without halting the input?

Thank you in advance for your help,
Thomas

--
View this message in context:
http://www.nabble.com/pyplot.show-tp25518658p25518658.html
Sent from the matplotlib - users mailing list archive at Nabble.com.

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Gokhan_SEVER1 · September 19, 2009, 5:51am

Running IPython with -pylab or specifying the threading option?

See more at

http://ipython.scipy.org/doc/stable/html/interactive/reference.html?highlight=pylab

···

On Sat, Sep 19, 2009 at 12:42 AM, Thomas Hrabe <thrabe@…985…> wrote:

Hi,

thank you for the quick reply. Unfortunately, none of both works for me.

values = [1,2,3];

pyplot.ioff();

#pyplot.ion();

print pyplot.isinteractive();

pyplot.plot(values);

pyplot.show();

The value (True|False) of interactive mode does not make a difference to the

plotting.

Other suggestionst?

Thanks so far!

may be you can try pyplot.ion()? it turns interactive mode on.

Hope this helps.

On Sat, Sep 19, 2009 at 1:11 PM, Thomas Hrabe <thrabe@…287…> wrote:

Hi all,

I am a beginner with matplotlib and doing my first steps with python

plotting.

However, I learned that pyplot.show really forces the display of already

existing plots.

For instance, when I type

In[2]: pyplot.plot([1,2,3])

Out[2]: [<matplotlib.lines.Line2D object at 0x2e33850>]

nothing happens until I type

In[3]: pyplot.show()

After that, the interpreter halts until I close the new figure window.

Only

closing enables the interpreter to continue with my later input. Moreover,

typing

In[4]: pyplot.plot([1,2,3])

again would display the figure immediately. Seems the gtk engine or

something else must be started up by pyplot.show once and, once running,

it

displays everything else after that instantly.

How can I tweak pyplot in such way that it would display my figures on the

very first pyplot.plot call without halting the input?

Thank you in advance for your help,

Thomas

–

View this message in context:

http://www.nabble.com/pyplot.show-tp25518658p25518658.html

Sent from the matplotlib - users mailing list archive at Nabble.com.

Come build with us! The BlackBerry® Developer Conference in SF, CA

is the only developer event you need to attend this year. Jumpstart your

developing skills, take BlackBerry mobile applications to market and stay

ahead of the curve. Join us from November 9-12, 2009. Register

now!

http://p.sf.net/sfu/devconf

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–
Gökhan

sunqiang · September 19, 2009, 6:45am

oops, maybe use pyplot.ion() not pyplot.ioff(). and pyplot.show() is not needed.
just pyplot.plot(values) is enough to launch a new figure window and you can continue plot new lines or legend… interactively.
I test it on my pc: Windows XP, Python 2.5.4, Matplotlib 0.99.0.

···

On Sat, Sep 19, 2009 at 1:37 PM, Thomas Hrabe <thrabe@…1762…82…> wrote:

Hi,

thank you for the quick reply. Unfortunately, none of both works for me.

values = [1,2,3];

pyplot.ioff();

#pyplot.ion();

print pyplot.isinteractive();

pyplot.plot(values);

pyplot.show();

The value (True|False) of interactive mode does not make a difference to the plotting.

Other suggestionst?

Thanks so far!

2009/9/19 sunqiang <sunqiang@…287…>

may be you can try pyplot.ion()? it turns interactive mode on.
Hope this helps.
On Sat, Sep 19, 2009 at 1:11 PM, Thomas Hrabe <thrabe@…287…> wrote:

Hi all,

I am a beginner with matplotlib and doing my first steps with python

plotting.

However, I learned that pyplot.show really forces the display of already

existing plots.

For instance, when I type

In[2]: pyplot.plot([1,2,3])

Out[2]: [<matplotlib.lines.Line2D object at 0x2e33850>]

nothing happens until I type

In[3]: pyplot.show()

After that, the interpreter halts until I close the new figure window. Only

closing enables the interpreter to continue with my later input. Moreover,

typing

In[4]: pyplot.plot([1,2,3])

again would display the figure immediately. Seems the gtk engine or

something else must be started up by pyplot.show once and, once running, it

displays everything else after that instantly.

How can I tweak pyplot in such way that it would display my figures on the

very first pyplot.plot call without halting the input?

Thank you in advance for your help,

Thomas

–

View this message in context: http://www.nabble.com/pyplot.show-tp25518658p25518658.html

Sent from the matplotlib - users mailing list archive at Nabble.com.

Come build with us! The BlackBerry® Developer Conference in SF, CA

is the only developer event you need to attend this year. Jumpstart your

developing skills, take BlackBerry mobile applications to market and stay

ahead of the curve. Join us from November 9-12, 2009. Register now!

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Thomas_Hrabe · September 19, 2009, 6:55am

starting with
ipython -pylab
solves it...

thanks for the help!

Thomas Hrabe wrote:

···

Hi all,

I am a beginner with matplotlib and doing my first steps with python
plotting.
However, I learned that pyplot.show really forces the display of already
existing plots.

For instance, when I type
In[2]: pyplot.plot([1,2,3])
Out[2]: [<matplotlib.lines.Line2D object at 0x2e33850>]

nothing happens until I type

In[3]: pyplot.show()

After that, the interpreter halts until I close the new figure window.
Only closing enables the interpreter to continue with my later input.
Moreover, typing
In[4]: pyplot.plot([1,2,3])

again would display the figure immediately. Seems the gtk engine or
something else must be started up by pyplot.show once and, once running,
it displays everything else after that instantly.
How can I tweak pyplot in such way that it would display my figures on the
very first pyplot.plot call without halting the input?

Thank you in advance for your help,
Thomas

--
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