Re: [Matplotlib-users] Backend Agg - show plot
hi, try this. It is simpler then some of the examples:
import pylab
# func - list of X, Y coordinates
func = [ 0, 0, 1, 2, 2, 3, 3, 2, 4, 1, 5, 1.4, ]
#
pylab.plot(func[0::2], func[1::2], 'b-', linewidth=3)
pylab.title(' Plot for function ...')
pylab.xlabel(' X name ')
pylab.ylabel(' Y name ' )
pylab.grid(True)
pylab.show()
#pylab.savefig('blahblah.png', facecolor='lightgrey', edgecolor='w')
pylab.close()
#
sa6113 wrote:
Thanks alot for your help, I could show the plot on the screen on python 2.4
.
I've used pyhton 2.3 .
Eric Firing wrote:
sa6113 wrote:
How should I darw and show a plot using Backend Agg , I don't want to
save
figure , just show ?
If you don't want to save a figure, then you will need an interactive
backend--not Agg, but TkAgg or GtkAgg etc. Then you end your script
with show() (imported from pylab or matplotlib.pyplot), and the plot
will be diplayed on your screen. (The plain Agg backend is useful only
with savefig(...) to generate png files.)
Check out the examples directory in the distribution.
Eric
-
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
--
Chris Kennedy http://www.coventor.com
Sr. Product ManagerPh: 919-854-7500 x156
Cary, NC Fx: 919-854-7501
Mobile: 919-414-6653
-
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Fail to allocate bitmap, Unable to free colormap, palette is still selected.
hi Mike,
It only prints what is between the , - . I tend to think it is
related to Tkinter.
I'm using the default GTKAgg.
I have generated over 1500 images using the simple example with no
issue. When it is in the larger app, it fails on the 2nd or 3rd request.
I'm trying
reload(matplotlib)
matplotlib.use('TkAgg')
Are there some python flags I can use when running the script to get
more verbose output? I've used -v and -d and get the cleanup list, is
that useful?
thanks
Michael Droettboom wrote:
Can you provide the full traceback for the error? Are there no Python
line numbers etc.?
I don't see the string Fail to allocate bitmap or Unable to free
colormap... anywhere in the matplotlib source, so it's hard to say
where it's coming from. I suspect they are coming from the GUI
framework you are using...
If you put your simple example inside of a loop, does the error
eventually occur -- or only within the context of your app? If the
latter, we'll need to somehow narrow it down to a specific setting or
method that causes the problem.
Also, what backend are you using when it breaks? Just Agg, or one of
the Gui+Agg backends?
Cheers,
Mike
Chris Kennedy wrote:
hi,
I get this error when I'm generating numerous .png files using
matplotlib 0.9.2 in py2.4 on WinXP
-
Fail to allocate bitmap
This application has requested the Runtime to terminate it in an
unusual way.
Please contact the application's support team for more information.
Unable to free colormap, palette is still selected.
This application has requested the Runtime to terminate it in an
unusual way.
Please contact the application's support team for more information.
-
The code is simple:
import matplotlib
import matplotlib.pyplot as pylab
pylabFigure = pylab.figure()
pylabFigure.clf()
pylab.rcdefaults()
pylab.plot(p[0::2], p[1::2], 'b-', linewidth=3)
pylab.title('Endpointing Plot for '+StepMillName)
pylab.xlabel('Mill Distance ('+m_unit+')')
pylab.ylabel('~ Electron response ~' )
pylab.grid(True)
pylabFigure.savefig('EPP_'+StepMillName+'.png',
facecolor='lightgrey', edgecolor='w')
pylab.close('all')
pylabFigure = None
I can put this code in a simple program and generate many images
without seeing the allocate bitmap error.
Perhaps it is colliding with something else in my main app. Is there
a command that can clear, flush, or unselect the palette and/or
colormap?
I don't see the allocate error if I switch the backend to 'SVG', that
has it own set of issues though: telling me it can't use, but then
generating SVG files anyway.
thanks
--
Chris Kennedy http://www.coventor.com
Sr. Product ManagerPh: 919-854-7500 x156
Cary, NC Fx: 919-854-7501
Mobile: 919-414-6653
-
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Fail to allocate bitmap, Unable to free colormap, palette is still selected.
hi,
I get this error when I'm generating numerous .png files using
matplotlib 0.9.2 in py2.4 on WinXP
-
Fail to allocate bitmap
This application has requested the Runtime to terminate it in an unusual
way.
Please contact the application's support team for more information.
Unable to free colormap, palette is still selected.
This application has requested the Runtime to terminate it in an unusual
way.
Please contact the application's support team for more information.
-
The code is simple:
import matplotlib
import matplotlib.pyplot as pylab
pylabFigure = pylab.figure()
pylabFigure.clf()
pylab.rcdefaults()
pylab.plot(p[0::2], p[1::2], 'b-', linewidth=3)
pylab.title('Endpointing Plot for '+StepMillName)
pylab.xlabel('Mill Distance ('+m_unit+')')
pylab.ylabel('~ Electron response ~' )
pylab.grid(True)
pylabFigure.savefig('EPP_'+StepMillName+'.png',
facecolor='lightgrey', edgecolor='w')
pylab.close('all')
pylabFigure = None
I can put this code in a simple program and generate many images without
seeing the allocate bitmap error.
Perhaps it is colliding with something else in my main app. Is there a
command that can clear, flush, or unselect the palette and/or colormap?
I don't see the allocate error if I switch the backend to 'SVG', that
has it own set of issues though: telling me it can't use, but then
generating SVG files anyway.
thanks
--
Chris Kennedy http://www.coventor.com
Sr. Product ManagerPh: 919-854-7500 x156
Cary, NC
-
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Fail to allocate bitmap, Unable to free colormap, palette is still selected.
hi Mike,
I was able to get it to work using:
reload(matplotlib)
matplotlib.use('Agg')
I'll have to beat on it some more to see if this is robust.
I saw the error message in this code:
http://search.cpan.org/src/NI-S/Tk-804.027/pTk/mTk/win/tkWinDraw.c
if(!bitmap) {
panic(Fail to allocate bitmap\n);
DeleteDC(dcMem);
TkWinReleaseDrawableDC(d, dc, state);
return;
}
thanks
Michael Droettboom wrote:
Can you provide the full traceback for the error? Are there no Python
line numbers etc.?
I don't see the string Fail to allocate bitmap or Unable to free
colormap... anywhere in the matplotlib source, so it's hard to say
where it's coming from. I suspect they are coming from the GUI
framework you are using...
If you put your simple example inside of a loop, does the error
eventually occur -- or only within the context of your app? If the
latter, we'll need to somehow narrow it down to a specific setting or
method that causes the problem.
Also, what backend are you using when it breaks? Just Agg, or one of
the Gui+Agg backends?
Cheers,
Mike
Chris Kennedy wrote:
hi,
I get this error when I'm generating numerous .png files using
matplotlib 0.9.2 in py2.4 on WinXP
-
Fail to allocate bitmap
This application has requested the Runtime to terminate it in an
unusual way.
Please contact the application's support team for more information.
Unable to free colormap, palette is still selected.
This application has requested the Runtime to terminate it in an
unusual way.
Please contact the application's support team for more information.
-
The code is simple:
import matplotlib
import matplotlib.pyplot as pylab
pylabFigure = pylab.figure()
pylabFigure.clf()
pylab.rcdefaults()
pylab.plot(p[0::2], p[1::2], 'b-', linewidth=3)
pylab.title('Endpointing Plot for '+StepMillName)
pylab.xlabel('Mill Distance ('+m_unit+')')
pylab.ylabel('~ Electron response ~' )
pylab.grid(True)
pylabFigure.savefig('EPP_'+StepMillName+'.png',
facecolor='lightgrey', edgecolor='w')
pylab.close('all')
pylabFigure = None
I can put this code in a simple program and generate many images
without seeing the allocate bitmap error.
Perhaps it is colliding with something else in my main app. Is there
a command that can clear, flush, or unselect the palette and/or
colormap?
I don't see the allocate error if I switch the backend to 'SVG', that
has it own set of issues though: telling me it can't use, but then
generating SVG files anyway.
thanks
--
Chris Kennedy http://www.coventor.com
Sr. Product ManagerPh: 919-854-7500 x156
Cary, NC
-
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
