Re: [Matplotlib-users] Prevent matplotlib (imshow) from interpolating at all

2012-07-26 Thread Rutger Kassies
Great tip, alot simpler than i expected. Although you still need to specify
the correct dimensions of the axes, otherwise it wil be interpolated after
all. If in my example i increase the figsize by a factor  of 2, the image
stretches along with it.

Thanks!

Rutger



On 25 July 2012 19:11, Benjamin Root ben.r...@ou.edu wrote:


 If you are using v1.1.0 or later, you can set interpolation to none.
 Note the difference between providing the string none, which means to do
 no interpolation at all, while the python None means to do the default.

 Ben Root

--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users


Re: [Matplotlib-users] axvspan with dates on x-axis

2012-07-26 Thread Phil Elson
Luciano got in touch offline and my suggestions worked for a certain
version of Python.

Luciano, were you trying it in python3? If not, what version of Python
was it that wasn't working for you?

Thanks,


On 24 July 2012 18:26, Luciano Fleischfresser l_...@yahoo.com wrote:
 Still not working. The output looks like this:

 File NotasFaltasdoisgraficos.py, line 58
ax3.axvspan(*mdates.datestr2num(['05/18/2012', '06/30/2012']),
 facecolor='g', alpha=0.5)

 ^
 SyntaxError: invalid syntax

 When you say ...change the months to short English form you mean in the
 data file?
 That is, Abr - Apr, Mai - May??? ...still did not work.

 
 From: Phil Elson pelson@gmail.com
 To: Luciano Fleischfresser l...@utfpr.edu.br
 Cc: Matplotlib-users@lists.sourceforge.net
 Matplotlib-users@lists.sourceforge.net
 Sent: Monday, July 23, 2012 5:45 PM
 Subject: Re: [Matplotlib-users] axvspan with dates on x-axis

 Looks like your very close.


 I needed to change the months to short English form, change the line

   ax3.grid('True') to ax3.grid(True)

 and add the line

   ax3.axvspan(*mdates.datestr2num(['05/18/2012', '06/30/2012']),
 facecolor='g', alpha=0.5)

 To get the box on the lower plot.

 Hope that helps,



 On 23 July 2012 20:42, Luciano Fleischfresser l_...@yahoo.com wrote:
 I want to place a colored vertical range on my plot and came across the
 following example:


 http://stackoverflow.com/questions/8270981/in-a-matplotlib-plot-can-i-highlight-specific-x-value-ranges/8271438#8271438

 It shows what I am trying to do using axvspan.
 However, I was not able to reproduce the second plot with dates.
 Errors like 'invalid syntax' for color='red' and others prevented me from
 reproducing the plot.
 The demo from Matplotlib gallery worked fine for me. My plot also has
 dates
 on the x-axis.

 I am attaching code and data file. Hope someone can point me in the right
 direction.

 L Fleischfresser


 --
 Live Security Virtual Conference
 Exclusive live event will cover all the ways today's security and
 threat landscape has changed and how IT managers can respond. Discussions
 will include endpoint security, mobile security and the latest in malware
 threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
 ___
 Matplotlib-users mailing list
 Matplotlib-users@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/matplotlib-users


 --
 Live Security Virtual Conference
 Exclusive live event will cover all the ways today's security and
 threat landscape has changed and how IT managers can respond. Discussions
 will include endpoint security, mobile security and the latest in malware
 threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
 ___
 Matplotlib-users mailing list
 Matplotlib-users@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/matplotlib-users



--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users


Re: [Matplotlib-users] axvspan with dates on x-axis

2012-07-26 Thread Luciano Fleischfresser
It is Python 2.5.2 (r252.60911, Jan 24 2010, 14:53:14)
[GCC 4.3.2] on linux2.

I believe the Matplotlib version there is outdated or the locale is an issue.

Thanks for the help!




 From: Phil Elson pelson@gmail.com
To: Luciano Fleischfresser l...@utfpr.edu.br 
Cc: Matplotlib-users@lists.sourceforge.net 
Matplotlib-users@lists.sourceforge.net 
Sent: Thursday, July 26, 2012 5:02 AM
Subject: Re: [Matplotlib-users] axvspan with dates on x-axis
 
Luciano got in touch offline and my suggestions worked for a certain
version of Python.

Luciano, were you trying it in python3? If not, what version of Python
was it that wasn't working for you?

Thanks,


On 24 July 2012 18:26, Luciano Fleischfresser l_...@yahoo.com wrote:
 Still not working. The output looks like this:

 File NotasFaltasdoisgraficos.py, line 58
    ax3.axvspan(*mdates.datestr2num(['05/18/2012', '06/30/2012']),
 facecolor='g', alpha=0.5)

 ^
 SyntaxError: invalid syntax

 When you say ...change the months to short English form you mean in the
 data file?
 That is, Abr - Apr, Mai - May??? ...still did not work.

 
 From: Phil Elson pelson@gmail.com
 To: Luciano Fleischfresser l...@utfpr.edu.br
 Cc: Matplotlib-users@lists.sourceforge.net
 Matplotlib-users@lists.sourceforge.net
 Sent: Monday, July 23, 2012 5:45 PM
 Subject: Re: [Matplotlib-users] axvspan with dates on x-axis

 Looks like your very close.


 I needed to change the months to short English form, change the line

   ax3.grid('True') to ax3.grid(True)

 and add the line

   ax3.axvspan(*mdates.datestr2num(['05/18/2012', '06/30/2012']),
 facecolor='g', alpha=0.5)

 To get the box on the lower plot.

 Hope that helps,



 On 23 July 2012 20:42, Luciano Fleischfresser l_...@yahoo.com wrote:
 I want to place a colored vertical range on my plot and came across the
 following example:


 http://stackoverflow.com/questions/8270981/in-a-matplotlib-plot-can-i-highlight-specific-x-value-ranges/8271438#8271438

 It shows what I am trying to do using axvspan.
 However, I was not able to reproduce the second plot with dates.
 Errors like 'invalid syntax' for color='red' and others prevented me from
 reproducing the plot.
 The demo from Matplotlib gallery worked fine for me. My plot also has
 dates
 on the x-axis.

 I am attaching code and data file. Hope someone can point me in the right
 direction.

 L Fleischfresser


 --
 Live Security Virtual Conference
 Exclusive live event will cover all the ways today's security and
 threat landscape has changed and how IT managers can respond. Discussions
 will include endpoint security, mobile security and the latest in malware
 threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
 ___
 Matplotlib-users mailing list
 Matplotlib-users@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/matplotlib-users


 --
 Live Security Virtual Conference
 Exclusive live event will cover all the ways today's security and
 threat landscape has changed and how IT managers can respond. Discussions
 will include endpoint security, mobile security and the latest in malware
 threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
 ___
 Matplotlib-users mailing list
 Matplotlib-users@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/matplotlib-users

--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users


[Matplotlib-users] How to plot only a legend?

2012-07-26 Thread Andreas Hilboll
Hi,

I would like to create a figure which only contains a legend, and no axes
at all. I would like to manually assign the colors. I found this here:

   http://stackoverflow.com/a/3302666

but from there on, I'd like to remove the axes, and put the legend into
three columns.

Any help is greatly appreciated :)
Andreas.


--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users


Re: [Matplotlib-users] How to plot only a legend?

2012-07-26 Thread Francesco Montesano
Hi Andreas,

2012/7/26 Andreas Hilboll li...@hilboll.de:
 Hi,

 I would like to create a figure which only contains a legend, and no axes
 at all. I would like to manually assign the colors. I found this here:

http://stackoverflow.com/a/3302666

 but from there on, I'd like to remove the axes, and put the legend into
 three columns.

If the plot attached it's fine for you it's easy:

import matplotlib.pyplot as plt
ax = plt.subplot()  #create the axes
ax.set_axis_off()  #turn off the axis
  #do patches and labels
ax.legend(patches, labels, ...)  #legend alone in the figure
plt.show()

Cheers,
Francesco


 Any help is greatly appreciated :)
 Andreas.


 --
 Live Security Virtual Conference
 Exclusive live event will cover all the ways today's security and
 threat landscape has changed and how IT managers can respond. Discussions
 will include endpoint security, mobile security and the latest in malware
 threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
 ___
 Matplotlib-users mailing list
 Matplotlib-users@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/matplotlib-users


test.pdf
Description: Adobe PDF document
--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users


Re: [Matplotlib-users] How to plot only a legend?

2012-07-26 Thread Andreas Hilboll
 Hi Andreas,

 2012/7/26 Andreas Hilboll li...@hilboll.de:
 Hi,

 I would like to create a figure which only contains a legend, and no
 axes
 at all. I would like to manually assign the colors. I found this here:

http://stackoverflow.com/a/3302666

 but from there on, I'd like to remove the axes, and put the legend into
 three columns.

 If the plot attached it's fine for you it's easy:

 import matplotlib.pyplot as plt
 ax = plt.subplot()  #create the axes
 ax.set_axis_off()  #turn off the axis
   #do patches and labels
 ax.legend(patches, labels, ...)  #legend alone in the figure
 plt.show()

 Cheers,
 Francesco

That's really easy :) I could live with this solution, applying some
external tool like pdfcrop to the result. Of course, it would be nicer if
the PDF's page size would be exactly that of the legend (plus some
margin), so that I wouldn't have to resort to external tools ...

Any ideas?

Cheers, A.


--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users


Re: [Matplotlib-users] How to plot only a legend?

2012-07-26 Thread Daπid
On Thu, Jul 26, 2012 at 5:05 PM, Andreas Hilboll li...@hilboll.de wrote:
 That's really easy :) I could live with this solution, applying some
 external tool like pdfcrop to the result.

If you can use other output, you can generate a png image, which would
be easier to cut (even inside MPL.image). This, without entering in
more complicated issues, that I don't know if they are even possible.

--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users


Re: [Matplotlib-users] How to plot only a legend?

2012-07-26 Thread Damon McDougall
On Thu, Jul 26, 2012 at 06:05:39PM +0200, Andreas Hilboll wrote:
  Hi Andreas,
 
  2012/7/26 Andreas Hilboll li...@hilboll.de:
  Hi,
 
  I would like to create a figure which only contains a legend, and no
  axes
  at all. I would like to manually assign the colors. I found this here:
 
 http://stackoverflow.com/a/3302666
 
  but from there on, I'd like to remove the axes, and put the legend into
  three columns.
 
  If the plot attached it's fine for you it's easy:
 
  import matplotlib.pyplot as plt
  ax = plt.subplot()  #create the axes
  ax.set_axis_off()  #turn off the axis
    #do patches and labels
  ax.legend(patches, labels, ...)  #legend alone in the figure
  plt.show()
 
  Cheers,
  Francesco
 
 That's really easy :) I could live with this solution, applying some
 external tool like pdfcrop to the result. Of course, it would be nicer if
 the PDF's page size would be exactly that of the legend (plus some
 margin), so that I wouldn't have to resort to external tools ...
 
 Any ideas?


How about

plt.savefig('roflcakes.png', bbox_inches='tight', pad_inches=0.1)

Since the other artists are invisible, that should crop to just your
legend. I'm assuming matplotlib updates the BoundingBox such that it
doesn't include invisible artists.

 
 Cheers, A.
 
 
 --
 Live Security Virtual Conference
 Exclusive live event will cover all the ways today's security and 
 threat landscape has changed and how IT managers can respond. Discussions 
 will include endpoint security, mobile security and the latest in malware 
 threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
 ___
 Matplotlib-users mailing list
 Matplotlib-users@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/matplotlib-users

-- 
Damon McDougall
http://damon-is-a-geek.com
B2.39
Mathematics Institute
University of Warwick
Coventry
West Midlands
CV4 7AL
United Kingdom

--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users


Re: [Matplotlib-users] How to plot only a legend?

2012-07-26 Thread Francesco Montesano
Hi,

you should be also able to create the axes as:

ax = plt.figure( figsize=(x,y) ).add_subplot(111)
with figsize big enough to fit just the legend

Cheers
Francesco

2012/7/26 Damon McDougall damon.mcdoug...@gmail.com:
 On Thu, Jul 26, 2012 at 06:05:39PM +0200, Andreas Hilboll wrote:
  Hi Andreas,
 
  2012/7/26 Andreas Hilboll li...@hilboll.de:
  Hi,
 
  I would like to create a figure which only contains a legend, and no
  axes
  at all. I would like to manually assign the colors. I found this here:
 
 http://stackoverflow.com/a/3302666
 
  but from there on, I'd like to remove the axes, and put the legend into
  three columns.
 
  If the plot attached it's fine for you it's easy:
 
  import matplotlib.pyplot as plt
  ax = plt.subplot()  #create the axes
  ax.set_axis_off()  #turn off the axis
    #do patches and labels
  ax.legend(patches, labels, ...)  #legend alone in the figure
  plt.show()
 
  Cheers,
  Francesco

 That's really easy :) I could live with this solution, applying some
 external tool like pdfcrop to the result. Of course, it would be nicer if
 the PDF's page size would be exactly that of the legend (plus some
 margin), so that I wouldn't have to resort to external tools ...

 Any ideas?


 How about

 plt.savefig('roflcakes.png', bbox_inches='tight', pad_inches=0.1)

 Since the other artists are invisible, that should crop to just your
 legend. I'm assuming matplotlib updates the BoundingBox such that it
 doesn't include invisible artists.


 Cheers, A.


 --
 Live Security Virtual Conference
 Exclusive live event will cover all the ways today's security and
 threat landscape has changed and how IT managers can respond. Discussions
 will include endpoint security, mobile security and the latest in malware
 threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
 ___
 Matplotlib-users mailing list
 Matplotlib-users@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/matplotlib-users

 --
 Damon McDougall
 http://damon-is-a-geek.com
 B2.39
 Mathematics Institute
 University of Warwick
 Coventry
 West Midlands
 CV4 7AL
 United Kingdom

 --
 Live Security Virtual Conference
 Exclusive live event will cover all the ways today's security and
 threat landscape has changed and how IT managers can respond. Discussions
 will include endpoint security, mobile security and the latest in malware
 threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
 ___
 Matplotlib-users mailing list
 Matplotlib-users@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/matplotlib-users

--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users


[Matplotlib-users] plt.figure.show() not working in Ubuntu

2012-07-26 Thread Joshua Koehler
Hi all,

I am getting the following error message:

'Figure' object has no attribute 'show'

When running matplotlib in Ubuntu 12.04, with matplotlib 1.2.x and pylab 1.6.2. 

The code is set up as such:

fig = pylab.figure()
...
fig.show()

This works fine on Mac OSX 10.6 with matplotlib 1.1.0 and pylab 1.6.1

Any thoughts or similar experiences?

Thanks!

Josh
--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users


Re: [Matplotlib-users] plt.figure.show() not working in Ubuntu

2012-07-26 Thread Benjamin Root
On Thursday, July 26, 2012, Joshua Koehler wrote:

 Hi all,

 I am getting the following error message:

 'Figure' object has no attribute 'show'

 When running matplotlib in Ubuntu 12.04, with matplotlib 1.2.x and pylab
 1.6.2.

 The code is set up as such:

 fig = pylab.figure()
 ...
 fig.show()

 This works fine on Mac OSX 10.6 with matplotlib 1.1.0 and pylab 1.6.1

 Any thoughts or similar experiences?

 Thanks!

 Josh


I doubt that ever should have worked.  If it did, then something was
seriously messed up.  Also, note there isnt really a package called
pylab.  There is a special sub-module in matplotlib called pylab, that
you typically do from pylab import * with.  The version number you are
giving more likely corresponds to the numpy version number.

The show() function is a part of the pyplot and pylab namespaces.

Ben Root
--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users


[Matplotlib-users] ValueError: x and y must have same first dimension

2012-07-26 Thread surfcast23

Hi 
I have a code to plot a histogram and I am trying to add a best fit line
following this example

http://matplotlib.sourceforge.net/examples/pylab_examples/histogram_demo.html

but run into this error

Traceback (most recent call last):
  File /home/Astro/count_Histogram.py, line 54, in module
l = plt.plot(bins, y, 'r--', linewidth=1)
  File /usr/lib/pymodules/python2.7/matplotlib/pyplot.py, line 2467, in
plot
ret = ax.plot(*args, **kwargs)
  File /usr/lib/pymodules/python2.7/matplotlib/axes.py, line 3893, in plot
for line in self._get_lines(*args, **kwargs):
  File /usr/lib/pymodules/python2.7/matplotlib/axes.py, line 322, in
_grab_next_args
for seg in self._plot_args(remaining, kwargs):
  File /usr/lib/pymodules/python2.7/matplotlib/axes.py, line 300, in
_plot_args
x, y = self._xy_from_xy(x, y)
  File /usr/lib/pymodules/python2.7/matplotlib/axes.py, line 240, in
_xy_from_xy
raise ValueError(x and y must have same first dimension)
ValueError: x and y must have same first dimension

My Code 

import matplotlib.pyplot as plt
import math
import numpy as np
import mpl_toolkits.mplot3d.axes3d
import matplotlib.mlab as mlab

counts = []
F = '/home/Astro/outfiles/outmag21_5dr_38_68.txt'
f = open(F)
for line in f:
 if line != ' ':  
columns = line.split() 
count = columns[3] 
count = int(count)
counts.append(count)
C  = np.array(counts, dtype=float)

avg = sum(C)/len(C)
diff = C-avg
sigma = np.sqrt((1./len(C))*(diff**2))

bins = 20
plt.hist(C, bins, range=None, normed=False, weights=None, cumulative=False,
bottom=None, histtype='bar', align='mid', orientation='vertical',
rwidth=None, log = False, color=None, label=None)
plt.title()
plt.text(25,20,'M  -21.5' '\n' 'N Halos 3877' '\n' 'Length Cell 38.68Mpc'
'\n' 'N Cells 269' '\n' 'Avg Halo per Cell 14.35 ')
plt.xlabel(Halos/Cell)
plt.ylabel(Number Cells with N Halos)
y = mlab.normpdf( bins, avg, sigma)
print(len(y))
l = plt.plot(bins, y, 'r--', linewidth=1)
plt.show()


My first question is do x and y refer to the values in  l = plt.plot(bins,
y, 'r--', linewidth=1) which for my case are bins and y?
if that is the case how can I get then to be the same first dimension?
-- 
View this message in context: 
http://old.nabble.com/ValueError%3A-x-and-y-must-have-same-first-dimension-tp34218704p34218704.html
Sent from the matplotlib - users mailing list archive at Nabble.com.


--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users


[Matplotlib-users] Bug in colorbar()

2012-07-26 Thread Jeffrey Spencer
I am trying to make a plot with a colorbar that has a reduced axis over
which the colorbar is executed.

This is set via passing in a norm to contourf:
logNorm = colors.Normalize(vmax=0,vmin=-100)
surf = ax.contourf(X,Y,logZ, map_scale, cmap=cm.jet, norm=logNorm)

The output of this will have the colorbar extend to the full range of the
data and not limited by the norm set:

cbar = fig.colorbar(surf, shrink=0.70, aspect=36, fraction=.15,pad=.03)

so I assumed modifying by setting the norm like this would do the trick:

cbar = fig.colorbar(surf, shrink=0.70, aspect=36, fraction=.15,pad=.03,
norm=logNorm)

This isn't what happens. norm has no effect. The norm is recognized but not
passed to ColorbarBase is my guess from doing this instead to get the
desired effect:

axcb, _ = mpl.colorbar.make_axes_gridspec(ax, shrink=0.7)
cbar = mpl.colorbar.ColorbarBase(axcb, cmap=cm.jet, norm=logNorm)



Is this a bug or any reason why the norm is not passed through if specified
in colorbar??
--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users