matplotlib-users Mailing List for matplotlib

A good reminder to check that site out.   There is alsoTreeMap, which uses 
coloured rectangles.  http://www.scipy.org/TreeMap





Jessica Lu <jl...@as...> 
Sent by: mat...@li...
20/12/2007 05:30 AM

To

cc
Bryan Fodness <bry...@gm...>, matplotlib 
<mat...@li...>
Subject
Re: [Matplotlib-users] drawing a box






There is an example of this on the scipy matplotlib cookbook:

http://www.scipy.org/Cookbook/Matplotlib/ShadedRegions

Cheers,
Jessica

On Dec 18, 2007, at 7:58 PM, John Hunter wrote:

> On Dec 18, 2007 9:47 PM, Bryan Fodness <bry...@gm...> 
> wrote:
>> I do want a rectangle.  And, I have tried,
>>
>> axvline(x=x1, ymin=y1, ymax=y2)
>> axvline(x=x2, ymin=y1, ymax=y2)
>> axhline(y=y1, xmin=x1, xmax=x2)
>> axhline(y=y2, xmin=x1, xmax=x2)
>>
>
> You can either use the plot function "fill"
>
>
> In [1]: xs = [0, 0, 1, 1]
>
> In [2]: ys = [0, 2, 2, 0]
>
> In [3]: fill(xs, ys)
> Out[3]: [<matplotlib.patches.Polygon instance at 0x23d86e8>]
>
> or create a matplotlib.patches.Rectangle instance, eg
> http://matplotlib.sf.net/examples/alignment_test.py
>
> ---------------------------------------------------------------------- 
> ---
> SF.Net email is sponsored by:
> Check out the new SourceForge.net Marketplace.
> It's the best place to buy or sell services
> for just about anything Open Source.
> http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/ 
> marketplace
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>


-------------------------------------------------------------------------
SF.Net email is sponsored by:
Check out the new SourceForge.net Marketplace.
It's the best place to buy or sell services
for just about anything Open Source.
http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace

_______________________________________________
Matplotlib-users mailing list
Mat...@li...
https://lists.sourceforge.net/lists/listinfo/matplotlib-users

______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please visit http://www.messagelabs.com/email 
______________________________________________________________________



UNITED GROUP
This email message is the property of United Group. The information in this email is confidential and may be legally privileged. It is intended solely for the addressee. Access to this email by anyone else is unauthorised. If you are not the intended recipient, you may not disclose, copy or distribute this email, nor take or omit to take any action in reliance on it. United Group accepts no liability for any damage caused by this email or any attachments due to viruses, interference, interception, corruption or unauthorised access.
If you have received this email in error, please notify United Group immediately by email to the sender's email address and delete this document.

There is an example of this on the scipy matplotlib cookbook:

http://www.scipy.org/Cookbook/Matplotlib/ShadedRegions

Cheers,
Jessica

On Dec 18, 2007, at 7:58 PM, John Hunter wrote:

> On Dec 18, 2007 9:47 PM, Bryan Fodness <bry...@gm...>  
> wrote:
>> I do want a rectangle.  And, I have tried,
>>
>> axvline(x=x1, ymin=y1, ymax=y2)
>> axvline(x=x2, ymin=y1, ymax=y2)
>> axhline(y=y1, xmin=x1, xmax=x2)
>> axhline(y=y2, xmin=x1, xmax=x2)
>>
>
> You can either use the plot function "fill"
>
>
> In [1]: xs = [0, 0, 1, 1]
>
> In [2]: ys = [0, 2, 2, 0]
>
> In [3]: fill(xs, ys)
> Out[3]: [<matplotlib.patches.Polygon instance at 0x23d86e8>]
>
> or create a matplotlib.patches.Rectangle instance, eg
> http://matplotlib.sf.net/examples/alignment_test.py
>
> ---------------------------------------------------------------------- 
> ---
> SF.Net email is sponsored by:
> Check out the new SourceForge.net Marketplace.
> It's the best place to buy or sell services
> for just about anything Open Source.
> http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/ 
> marketplace
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>

Hi,

when matplotlib processes variables, it makes sure to handle masked
variables (numpy.ma) by converting them using "soft "
numpy.ma.asarray. So, when a subclass instance of numpy.ma is used as
a variable, it keeps properties and methods in this operation that can
be conflicting with future processing.

An example of problematic input variable can be cdms variable (from
CDAT - cdat.sourceforge.net/). Such a variable is like a numpy.ma with
axes (like time, longitude, latitude, etc) and attributes (like
missing value, name, units). A problem for example is that it cannot
handle "newaxis" slicings (var[:,newaxis]) that matplotlib uses to be
sure that a variable has a suitable rank. In addition, other
properties of cdms variable ares not interesting for matplotlib
processing.

Therefore, it may be useful to strictly convert input variables to
pure numpy.ma using something like numpy.ma.array(var,copy=0).
Is it feasible?

-- 
Stephane Raynaud

On Dec 18, 2007 9:47 PM, Bryan Fodness <bry...@gm...> wrote:
> I do want a rectangle.  And, I have tried,
>
> axvline(x=x1, ymin=y1, ymax=y2)
> axvline(x=x2, ymin=y1, ymax=y2)
> axhline(y=y1, xmin=x1, xmax=x2)
> axhline(y=y2, xmin=x1, xmax=x2)
>

You can either use the plot function "fill"


In [1]: xs = [0, 0, 1, 1]

In [2]: ys = [0, 2, 2, 0]

In [3]: fill(xs, ys)
Out[3]: [<matplotlib.patches.Polygon instance at 0x23d86e8>]

or create a matplotlib.patches.Rectangle instance, eg
http://matplotlib.sf.net/examples/alignment_test.py

I do want a rectangle.  And, I have tried,

axvline(x=3Dx1, ymin=3Dy1, ymax=3Dy2)
axvline(x=3Dx2, ymin=3Dy1, ymax=3Dy2)
axhline(y=3Dy1, xmin=3Dx1, xmax=3Dx2)
axhline(y=3Dy2, xmin=3Dx1, xmax=3Dx2)

On Dec 18, 2007 10:40 PM, John Hunter <jd...@gm...> wrote:

> On Dec 18, 2007 9:00 PM, Bryan Fodness <bry...@gm...> wrote:
> > I would like to draw a polygon using a x1, x2, y1, and y2.
>
> At a minimum, x1, x2, y1, and y2 define a line segment, or at most a
> rectangle.  You say a "polygon".  What exactly do you mean, and what
> have you tried (code please)?
>
> JDH
>



--=20
"The game of science can accurately be described as a never-ending insult t=
o
human intelligence." - Jo=E3o Magueijo

On Dec 18, 2007 9:00 PM, Bryan Fodness <bry...@gm...> wrote:
> I would like to draw a polygon using a x1, x2, y1, and y2.

At a minimum, x1, x2, y1, and y2 define a line segment, or at most a
rectangle.  You say a "polygon".  What exactly do you mean, and what
have you tried (code please)?

JDH

I would like to draw a polygon using a x1, x2, y1, and y2.

I tried to use axhline and axvline with the min and max values but it does
give the desired result.  It changes the axis limits and does not draw a
line at all.

Any help would be appreciated.
Bryan

--=20
"The game of science can accurately be described as a never-ending insult t=
o
human intelligence." - Jo=E3o Magueijo