[Matplotlib-users] installing basemap
Hi, I previously installed basemap by using the yum command. This installed version 0.99.4. I want to install the latest version so I can use shaded relief etc. This may be more of a linux problem but as I am more familiar with python than linux I thought someone here may be able to help. Following the website instructions ( http://matplotlib.github.com/basemap/users/installing.html) I downloaded the latest version and untarred it. Then in the basemap directory (which contains geos-3.2.0) I try to set the environment variable GEOS_DIR to point to the location of libgeos_c and geos_c.h. I use the find command to locate the files, *find / -name geos_c.h* returns the location of that file as * /usr/lib/basemap-1.0.1/geos-3.2.0/capi/geos_c.h* and *find / -name libgeos** returns */libgeos_c_la-geos_c.Plo /usr/lib/libgeos-3.3.1.so /usr/lib/libgeos_c.so.1.7.1 /usr/lib/libgeos_c.so.1* so I set GEOS_DIR to /usr/lib(not sure if this is correct). I then cd to the basemap directory and run, python setup.py install [davcra@David basemap-1.0.1]$ sudo python setup.py install [sudo] password for davcra: checking for GEOS lib in /root checking for GEOS lib in /usr checking for GEOS lib in /usr/local checking for GEOS lib in /sw checking for GEOS lib in /opt checking for GEOS lib in /opt/local Can't find geos library . Please set the environment variable GEOS_DIR to point to the location where geos is installed (for example, if geos_c.h is in /usr/local/include, and libgeos_c is in /usr/local/lib, set GEOS_DIR to /usr/local), or edit the setup.py script manually and set the variable GEOS_dir (right after the line that says set GEOS_dir manually here. The problem seems to be with GEOS_DIR but I am not sure what I should set it to. Thanks D -- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Display problem on CentOS
Alexis Eric Thanks for your advices. I've been trying, but I still have some problems. I tried matplotlib.matplotlib_fname() and I found my silly mistake. Python answered '/usr/local/lib/python2.7/site-packages/matplotlib/mpl-data/matplotlibrc' My RC file was named .matplotlibrc. When the prefixed dot removed, it works perfectly. And I found to change the backends by using matplotlib.use() command. I tried all of them, but nothing worked (with errors). When using matplotlib.get_backend() on pre-installed python2.6, it said 'GTKAgg' and matplotlib.pyplot.show() exactly worked. So I tried to install PyGTK from source code, but it's fairly complicated. Is there an easy way to install backends for additionally installed Python? My python is v2.7.2. Magician On 2012/03/27, at 23:04, Alexis Praga wrote: You can check you are editing the correct configuration file with (in the Python shell) : import matplotlib matplotlib.matplotlib_fname() You can also try other backends. For a list, see : http://matplotlib.sourceforge.net/faq/usage_faq.html#what-is-a-backend On Tue, Mar 27, 2012 at 2:46 PM, Magician f_magic...@mac.com wrote: Thank you, Alexis. I try to install PyQt4 and set Qt4Agg just now, but nothing displayed. Ummm...what's wrong...?? Magician On 2012/03/27, at 17:05, Alexis Praga wrote: I had the same problem on Debian. Editing the matplotlibrc (should be installed somewhere in your systeme) and changing the backend variable to Qt4Agg did the trick. On Tue, Mar 27, 2012 at 12:14 AM, Magician f_magic...@mac.com wrote: Hi. I want to install Matplotlib from source code on CentOS. I've been using Matplotlib for a year. But this is the first time for me to install CentOS by myself. I installed CentOS 6.2 in basic install option. Next, I installed NumPy and Matplotlib. .matplotlibrc isn't set. It looks successfully installed, but when I type show() command, nothing appears. I can export PNG image by using savefig() command, so maybe I'm using invalid backend. How can I display plots with show() command? Magician -- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Copying a figure instance?
On Fri, Mar 30, 2012 at 12:25 PM, eoj josephmeir...@gmail.com wrote:
Basically the problem is like this. I have a relatively expensive (time
wise)
figure to create, specifically a map with lots of detail in it. On top of
that, I'm making an inset set of axes to highlight some regions. I'm
having
to recreate the base of the map, which is static, every time I want to make
an inset for a different region which is taking forever. What I want to do
is something like this:
fig = figure()
#do stuff that makes the expensive figure
for region in regions:
fig2 = copy.copy(fig)
ax2 = fig.add_axes([0.1, 0.15, 0.25, 0.25])
ax2.fill(x1,y1)
savefig(region_name)
close()
The problem is that the clf() clear figure function seems to clear the base
of the map off, even if I try to make a copy of it inside a loop that is
generating the insets. Also, close() seems to close fig and not fig2. Does
this rambling make any sense, and if so, any suggestions?
If all your additions are confined to the inset axes, you can use
`fig.delaxes` to remove the axes from the figure (see example below). If
you want to save and restore, as you describe above, you should (in
principal) be able to do so with `canvas.copy_from_bbox` and
`canvas.restore_region`, but I couldn't get it to work (see bottom of the
animation cookbook http://www.scipy.org/Cookbook/Matplotlib/Animations).
Cheers,
-Tony
# ~~~ example
import numpy as np
import matplotlib.pyplot as plt
fig, ax = plt.subplots()
ax.imshow(np.random.uniform(size=(10, 10)))
ax_inset = fig.add_axes([0.3, 0.3, 0.2, 0.2])
ax_inset.plot([0, 1])
plt.savefig('plot0')
fig.delaxes(ax_inset)
ax_inset = fig.add_axes([0.5, 0.5, 0.2, 0.2])
ax_inset.plot([1, 0])
plt.savefig('plot1')
# ~~~
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Re: [Matplotlib-users] Matplotlib installation
How did you install Python 2.7? None of my windows machines have ever hand any problem finding it when I installed from the official binaries found at python.org. -paul On Fri, Mar 30, 2012 at 9:56 AM, Mateusz J Burgunder mburgun...@wesleyan.edu wrote: Hello, I am trying to download matplot (matplotlib-1.1.0) but at the start of the download I get a screen that says Python version 2.7 required, which was not found in the registry. I have python 2.7. Where exactly should I save mathplotlib so that it can find python for the installation? Many thanks, Matt. -- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Subplot array and colorbar
Hi,
I'm trying to create a plot, with subplots where each row of x plots have a
common colorbar beneath it. Only the the top row will have titles. I've
tried creating a function to do this but I only achieve partial success.
Here is an image created in another program that I want to duplicate:
http://old.nabble.com/file/p33544950/fig.jpeg
I made several functions to do this. Here's one of them:
def Plot(self,title,plist):
for k in np.sort(self.vdic.keys()):
plt.subplot(5,13,self.window)
cs = plt.contourf(22,22,np.squeeze(self.vdic[k]),plist['levels'],
cmap=cm.get_cmap('jet',len(plist['levels'])-1))
plt.axis('off')
if title: plt.title(k,fontsize=tsize)
window += 1
cbar = plt.colorbar(cax=plist['cax'],orientation='h')
I've given up in getting the text on the left because every attempt using
text fails.
Now if this is a horrible way and you have a better idea, please feel free
to share.
I'm new at matplotlib and this is a great way to see how things can be done
better
and in different ways.
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Re: [Matplotlib-users] Display problem on CentOS
On 03/31/2012 04:02 AM, Magician wrote: Alexis Eric Thanks for your advices. I've been trying, but I still have some problems. I tried matplotlib.matplotlib_fname() and I found my silly mistake. Python answered '/usr/local/lib/python2.7/site-packages/matplotlib/mpl-data/matplotlibrc' My RC file was named .matplotlibrc. When the prefixed dot removed, it works perfectly. And I found to change the backends by using matplotlib.use() command. I tried all of them, but nothing worked (with errors). When using matplotlib.get_backend() on pre-installed python2.6, it said 'GTKAgg' and matplotlib.pyplot.show() exactly worked. So I tried to install PyGTK from source code, but it's fairly complicated. Is there an easy way to install backends for additionally installed Python? My python is v2.7.2. Can you find CentOS packages for any of the gui toolkits for your python version? pygtk, pyqt4, tkinter, wxpython--any of them? If so, you should be just about set. Only pygtk and tkinter would even require rebuilding mpl; pyqt4 and wxpython don't require any mpl extension code. Eric Magician On 2012/03/27, at 23:04, Alexis Praga wrote: You can check you are editing the correct configuration file with (in the Python shell) : import matplotlib matplotlib.matplotlib_fname() You can also try other backends. For a list, see : http://matplotlib.sourceforge.net/faq/usage_faq.html#what-is-a-backend On Tue, Mar 27, 2012 at 2:46 PM, Magicianf_magic...@mac.com wrote: Thank you, Alexis. I try to install PyQt4 and set Qt4Agg just now, but nothing displayed. Ummm...what's wrong...?? Magician On 2012/03/27, at 17:05, Alexis Praga wrote: I had the same problem on Debian. Editing the matplotlibrc (should be installed somewhere in your systeme) and changing the backend variable to Qt4Agg did the trick. On Tue, Mar 27, 2012 at 12:14 AM, Magicianf_magic...@mac.com wrote: Hi. I want to install Matplotlib from source code on CentOS. I've been using Matplotlib for a year. But this is the first time for me to install CentOS by myself. I installed CentOS 6.2 in basic install option. Next, I installed NumPy and Matplotlib. .matplotlibrc isn't set. It looks successfully installed, but when I type show() command, nothing appears. I can export PNG image by using savefig() command, so maybe I'm using invalid backend. How can I display plots with show() command? Magician -- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Having trouble installing matplotlib on Mac OS X Lion
Hi, Have you tried the EPD python installation, it works for me and includes SciPY/Numpy/ etc. http://www.enthought.com/products/epd_free.php Cheers, Joe William Carithers wrote: Hi all, I had matplotlib-0.99.1.1 working with Python 2.6 on OS X v10.6(Snow Leopard). Today I upgraded to Lion (v10.7) and matplotlib had disappeared. Lion ships with Apple¹s version of Python 2.7. Even when I look back at Python 2.6 in the /System/Library/Frameworks/Python/Version/Python2.6, it seems to be gone. OK, I thought I would install matplotlib-1.0.1 in Python 2.7 using easy_install. It failed when unable to find the headers for numpy (terminal output below). Lion comes with numpy 1.5.1 pre-installed. I tried re-installing numpy but that didn¹t help so now I¹m stuck. Any suggestions? Thanks. c4-2c-3-1-f0-3a:matplotlib-1.0.1 williamcarithers$ sudo easy_install matplotlib Searching for matplotlib Reading http://pypi.python.org/simple/matplotlib/ Reading http://matplotlib.sourceforge.net Reading https://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-1.0. 1/ Reading http://sourceforge.net/project/showfiles.php?group_id=80706package_id=82474 Reading http://sourceforge.net/project/showfiles.php?group_id=80706 Reading https://sourceforge.net/project/showfiles.php?group_id=80706package_id=8247 4 Reading https://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-0.99 .1/ Reading https://sourceforge.net/project/showfiles.php?group_id=80706package_id=2781 94 Reading https://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-0.99 .3/ Reading https://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-1.0 Best match: matplotlib 1.0.1 Downloading http://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-1.0.1 /matplotlib-1.0.1.tar.gz/download Processing matplotlib-1.0.1.tar.gz Running matplotlib-1.0.1/setup.py -q bdist_egg --dist-dir /tmp/easy_install-OI8zuY/matplotlib-1.0.1/egg-dist-tmp-3EXRXm basedirlist is: [] BUILDING MATPLOTLIB matplotlib: 1.0.1 python: 2.7.1 (r271:86832, Jun 16 2011, 16:59:05) [GCC 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00)] platform: darwin REQUIRED DEPENDENCIES numpy: 1.5.1 * Could not find the headers for numpy. You may * need to install the development package. error: Setup script exited with 1 -- uberSVN's rich system and user administration capabilities and model configuration take the hassle out of deploying and managing Subversion and the tools developers use with it. Learn more about uberSVN and get a free download at: http://p.sf.net/sfu/wandisco-dev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- View this message in context: http://old.nabble.com/Having-trouble-installing-matplotlib-on-Mac-OS-X-Lion-tp3373p33544963.html Sent from the matplotlib - users mailing list archive at Nabble.com. -- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] bar plot (autofmt_xdate and left-right margins )
Hi All
i'm bring to do simple bar plot formatting the xlabe as 'date' using a syntax
like : fig.autofmt_xdate(bottom=0.1)
but something is wrong in my code, please have you any hints on ghow to proper
display the dates (Year) along the x axis
and how to leave a margin on the left and on the right of the plot? (my
example has a margin only on the right, while the first bar is adjacent to the
Y axis)
###
import numpy as np
import matplotlib.pyplot as plt
x = np.array([1969,1970,1971,1972,1973,1974])
y = np.array([-3,10,23,-4,-5,6])
data = [x,y]
print x
print y
def bar_plot(data, Yval, datamin=None, datamax=None):
doc
fig = plt.figure()
fig.autofmt_xdate(bottom=0.1)
ax1 = fig.add_subplot(211)
x = data[0]
y = data[1]
if datamin != datamax != None :
x = data[0][np.where((data[0]=datamin) (data[0]=datamax))[0]]
y = data[1][np.where((data[0]=datamin) (data[0]=datamax))[0]]
x_p = x[np.where(y=0)[0]]
y_p = y[np.where(y=0)[0]]
x_n = x[np.where(y0)[0]]
y_n = y[np.where(y0)[0]]
ax1.bar(x_n, y_n, facecolor='b')
ax1.bar(x_p, y_p, facecolor='r')
ax1.grid(True)
ax1.set_xlabel('Year')
ax1.set_ylabel(Yval)
ax1.set_title(Yval)
ax1.axhline(0, color='black', lw=1)
plt.show()
bar_plot(data, 'Var', datamin=1970, datamax=1973)
###
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