matplotlib-users Mailing List for matplotlib

I don't see any error when I run python setup.py build for 
matplotlib. It seems to identify everything it needs.
-gideon
On Apr 13, 2008, at 10:35 AM, Joshua Lippai wrote:
> Are you sure you built pylab correctly? See if you can find something
> suspicious in the build dialog. I had this error once a long time ago,
> but at some point since then a rebuild of everything fixed it. In the
> mean time, using savefig will still work even if the GUI button
> doesn't.
>
> Josh
>
> On Sat, Apr 12, 2008 at 11:41 AM, Gideon Simpson 
> <gr...@co...> wrote:
>> For some reason when trying to save in PNG format on OS X 10.5.2, a
>> window pops up with the error:
>>
>> Matplotlib backend_wx error
>> cannot return std::string from Unicode object
>>
>>
>> This is with the simple scipy demo at http://www.scipy.org/Cookbook/OptimizationDemo1
>>
>>
>> Gideon Simpson
>> Department of Applied Physics & Applied Mathematics
>> Columbia University
>> gr...@co...
>>
>>
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Are you sure you built pylab correctly? See if you can find something
suspicious in the build dialog. I had this error once a long time ago,
but at some point since then a rebuild of everything fixed it. In the
mean time, using savefig will still work even if the GUI button
doesn't.
Josh
On Sat, Apr 12, 2008 at 11:41 AM, Gideon Simpson <gr...@co...> wrote:
> For some reason when trying to save in PNG format on OS X 10.5.2, a
> window pops up with the error:
>
> Matplotlib backend_wx error
> cannot return std::string from Unicode object
>
>
> This is with the simple scipy demo at http://www.scipy.org/Cookbook/OptimizationDemo1
>
>
> Gideon Simpson
> Department of Applied Physics & Applied Mathematics
> Columbia University
> gr...@co...
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
> Don't miss this year's exciting event. There's still time to save 100ドル.
> Use priority code J8TL2D2.
> http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>

I just use blit on imshow map, and work properly. Maybe the following code
will help you.
def ontimer()
 canvas.restore_region(background)
 im.set_array(Z)
 ax.draw_artist(self.imList[i])
 canvas.blit(ax.bbox)
 canvas.gui_repaint()
-- 
View this message in context: http://www.nabble.com/speeding-up-imshow-tp16623430p16656693.html
Sent from the matplotlib - users mailing list archive at Nabble.com.

I just want to set ["10%","20%"....] on colorbar. However, failed again and
again. Thank you for your help.
The following code work properly. But when I set formatter =
FixedFormatter(["10%","20%","30%","40%"])
No labels is shown on colorbar, Why? 
Is there any way to set the char "%" on colorbar?
from matplotlib.ticker import MultipleLocator,
FixedFormatter,FormatStrFormatter
from pylab import *
import matplotlib.colors as colors
delta = 0.025
x = y = arange(-3.0, 3.0, delta)
X, Y = meshgrid(x, y)
Z1 = bivariate_normal(X, Y, 1.0, 1.0, 0.0, 0.0)
Z2 = bivariate_normal(X, Y, 1.5, 0.5, 1, 1)
Z = 10 * (Z2-Z1) 
im = imshow(Z, interpolation='bilinear',
 norm = colors.Normalize(vmin = -1.0, vmax = 1.0, clip = False),
 origin='lower', extent=[-3,3,-3,3])
locator=MultipleLocator(0.4)
#formatter = FixedFormatter(["10%","20%","30%","40%"])
formatter=FormatStrFormatter("%0.1f")
colorbar(im, extend='both', shrink=0.8,format=formatter,ticks=locator)
show()
-- 
View this message in context: http://www.nabble.com/formatter-on-colorbar-----tp16656691p16656691.html
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Hello:
I am having some trouble with the syntax for plotting using matplotlib. I 
have appended a simple script which illustrates the problem. When I run 
the script the first plot command gives the expected results but the 
second, third and fourth plot commands do not. The second window does 
open but no plots are contained within. However if I read the script 
again (run ....) but do not call the function (main()) then the plots for 
the second window appear (but the plot in the first window does not get 
the second plot).
Any help?
#!/usr/bin/env ipython
from __future__ import division
import numpy as np
import scipy as sp
#import matplotlib.pyplot as plt
import matplotlib.pylab as plt
def main():
	a = np.array([1,2,3])
	b = np.array(([100,200,300],[400,500,600],[700,800,900]))
	fig1 = plt.figure(1)
	ax1 = fig1.add_subplot(111)
	ax1.plot(a)
	ax1.set_xlabel('x')
	ax1.set_ylabel('y')
	ax2 = plt.twinx()
	ax2.plot(b[:,:])
	ax2.set_ylabel('x')
	ax2.yaxis.tick_right()
	fig2 = plt.figure(2)
	ax3 = fig2.add_subplot(211)
	ax3.plot(a)
	ax3.set_xlabel('x')
	ax3.set_ylabel('y')
	ax4 = fig2.add_subplot(212)
	ax4.plot(b[1,:])
	ax4.set_xlabel('x')
	ax4.set_ylabel('y')
	plt.show()
	return