matplotlib-users Mailing List for matplotlib

On 9/27/11 4:57 PM, Isidora wrote:
> The attached map shows plotted fill paths whose filling extends only to the U.S. borders. Is there any way I could accomplish something like it using Basemap?
>
> Thanks
Isidora:
It's probably possible, but there's no simple recipe. The 
drawcoastlines method returns a LineCollection which you should be able 
to use to do what you want. Sorry I can't be more specific, but I don't 
have time to go into any more depth right now.
-Jeff
>
> ---------- Forwarded Message ----------
> From: "Isidora"<is...@ju...>
> To: mat...@li...
> Subject: matplotlib - fill open path inside U.S. borders
> Date: 2011年9月26日 19:55:49 GMT
>
> Hi,
> I am trying to plot filled paths over a U.S. map. I plot the given paths, but since these are not closed paths, the filling is truncated at a line drawn between last and first point in the path. I want to extend the path to the United States border instead.
>
>
> I am no expert in matplotlib or GIS. Could anyone help me find documentation or blogs discussing this type of issue? I am convinced somebody else has already faced this problem although I have not been able to find any paper, documentation, blog on it.
>
> Thank you
>
>
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The attached map shows plotted fill paths whose filling extends only to the U.S. borders. Is there any way I could accomplish something like it using Basemap?
Thanks
---------- Forwarded Message ----------
From: "Isidora" <is...@ju...>
To: mat...@li...
Subject: matplotlib - fill open path inside U.S. borders
Date: 2011年9月26日 19:55:49 GMT
Hi,
I am trying to plot filled paths over a U.S. map. I plot the given paths, but since these are not closed paths, the filling is truncated at a line drawn between last and first point in the path. I want to extend the path to the United States border instead. 
I am no expert in matplotlib or GIS. Could anyone help me find documentation or blogs discussing this type of issue? I am convinced somebody else has already faced this problem although I have not been able to find any paper, documentation, blog on it. 
Thank you

We have uploaded the first release candidate for matplotlib 1.1.0 for testing.
* src and OSX versions for download:
https://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-1.1.0/
* windows binaries are available here:
http://www.lfd.uci.edu/~gohlke/pythonlibs/#matplotlib
* website and docs: http://matplotlib.sourceforge.net/rc/v1.1.0rc1/index.html
* what's new: http://matplotlib.sourceforge.net/rc/v1.1.0rc1/users/whats_new.html
* commit log: https://github.com/matplotlib/matplotlib/commits/v1.1.x/
* CHANGELOG: https://github.com/matplotlib/matplotlib/blob/v1.1.x/CHANGELOG
Please let us know if you find problems. You can file issues at the
github site https://github.com/matplotlib/matplotlib/issues
Thanks to all the developers who have been working hard on this release.
JDH

On Tue, Sep 27, 2011 at 11:55 AM, rajtendulkar
<pra...@gm...>wrote:
> Dear Forum, I am a completely new user to matplotlib. I want to plot a 3D
> wireframe / surface plot with matplotlib. I am trying to understand how to
> arrange the data so that I will get the correct plot. After trying a lot and
> taking reference from different examples, I wrote a code given in the file
> temp.py <http://old.nabble.com/file/p32534574/temp.py>. Can anyone please
> tell me, how can I fix it to get a correct wireframe or surface plot? I
> don't understand the array Z how it should look like. Thank You, Raj
> temp.py <http://old.nabble.com/file/p32534574/temp.py>
>
I don't think your data is well-formed. The input X, Y, and Z needs to be
2D with the same shape. I am confused by your x and y data, which you then
pass into meshgrid. To illustrate, meshgrid does this:
for:
x = [1, 2, 3, 4, 5]
y = [1, 2, 3]
then the command:
X, Y = numpy.meshgrid(x, y)
produces (for X):
array([[1, 2, 3, 4, 5],
 [1, 2, 3, 4, 5],
 [1, 2, 3, 4, 5]])
and (for Y):
array([[1, 1, 1, 1, 1],
 [2, 2, 2, 2, 2],
 [3, 3, 3, 3, 3]])
Your x and y look like they are flattened versions of these. In addition,
your z doesn't seem to have enough values to fit the domain.
Ben Root

Dear Forum,
I am a completely new user to matplotlib.
I want to plot a 3D wireframe / surface plot with matplotlib. I am trying to
understand how to arrange the data so that I will get the correct plot.
After trying a lot and taking reference from different examples, I wrote a
code given in the file http://old.nabble.com/file/p32534574/temp.py temp.py
.
Can anyone please tell me, how can I fix it to get a correct wireframe or
surface plot?
I don't understand the array Z how it should look like.
Thank You,
Raj
http://old.nabble.com/file/p32534574/temp.py temp.py 
-- 
View this message in context: http://old.nabble.com/Plotting-in-3D.-how-to-specify-the-data--tp32534574p32534574.html
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Paul Ivanov wrote:
> 
> Hi Eric,
> 
> This problem was fixed by 2c924046 (Jim Radford 2011年03月08日 15:07:23 -0800
> 459)
> and now reads:
> 
> self.canvas.set_rubberband(int(x0), int(y0), int(x1), int(y1))
> 
> Please update either that line alone, or checkout the latest
> matplotlib sources from GitHub.
> 
> best,
> -- 
> Paul Ivanov
> 
Great! thanks.
-- 
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On 09/27/2011 06:21 AM, Dave Hirschfeld wrote:
> Michael Droettboom<mdroe@...> writes:
>
>> I'm not able to reproduce the problem: I get the watermark in both png
>> and pdf output. This was with git master.
>>
>> What version of matplotlib are you using? Can you send (off-list) the
>> png and pdf files so I can have a look at your output?
>>
>> Mike
>>
>> On 09/21/2011 10:28 AM, Dave Hirschfeld wrote:
>>> Is this a bug in the PDF/SVG backends or am I doing something wrong? If the
>>> former is there any workaround?
>>>
>>> The simple testcase below demonstrates the problem whereby the watermark
> doesn't
>>> show up in the pdf output but does in the png output.
>>>
> I upgraded my python to 2.7.2, numpy to 1.6.1, scipy to 0.10.0b2 and matplotlib
> to 1.1.0 using Christoph Gohlke's binaries but I'm still seeing no watermark in
> the PDF image :/
Can you send the PDF file to me (off-list)? It would be helpful to look 
at the content of the file and see the nature of the failure.
Mike
-- 
Michael Droettboom
Science Software Branch
Space Telescope Science Institute
Baltimore, Maryland, USA

Michael Droettboom <mdroe@...> writes:
> 
> I'm not able to reproduce the problem: I get the watermark in both png 
> and pdf output. This was with git master.
> 
> What version of matplotlib are you using? Can you send (off-list) the 
> png and pdf files so I can have a look at your output?
> 
> Mike
> 
> On 09/21/2011 10:28 AM, Dave Hirschfeld wrote:
> > Is this a bug in the PDF/SVG backends or am I doing something wrong? If the
> > former is there any workaround?
> >
> > The simple testcase below demonstrates the problem whereby the watermark
doesn't
> > show up in the pdf output but does in the png output.
> >
I upgraded my python to 2.7.2, numpy to 1.6.1, scipy to 0.10.0b2 and matplotlib
to 1.1.0 using Christoph Gohlke's binaries but I'm still seeing no watermark in
the PDF image :/
-Dave

Hi All,
I recently upgraded my python packages through Enthought.
I have a mac osx 10.6.8
Previous versions: python 2.6, matplotlib 0.99.3 (Enthought 6.2)
New versions: python 2.7, matplotlib 1.0.1 (Enthought 7.1)
I am using the macosx backend.
I have some functions I wrote which analyze data. They previously worked with no error. Now I get a weird error I am not sure how to sort out yet:
Python[47092] <Error>: CGContextClosePath: no current point.
I believe this is a matplotlib issue as searching for CGContextClosePath returns errors regarding drawing lines.
I should add that my scripts still run, and the plots are still drawn, but I get a dump of error messages like this in my output.
Any ideas what is going on?
Thanks,
Andre