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Hi,

I'm trying to implement the following: x,y,z,s are arrays of same size. I'm
plotting x,y,z in Axes3D but I'm unable to change its color proportionally
with s; like to be able to change its intensity w.r.t 's' (just an example).
Please let me know the method if it is possible to do such a plot.

Thanks,
Taja

In article <4D0...@gm...>,
 Jose Guzman <sjm...@go...> 
 wrote:

> Hi everybody
> 
> I wanted to collect a combination of plots to insert then in a subplot. 
> I choose to create Line2D objects to use the .add_line() method of the 
> AxesSubplot class, but unfortunately this does lead to the desired results.
>...

Is the appended closer to what you had in mind?

-- Russell

from matplotlib.lines import Line2D
from matplotlib.pyplot import figure, show

import numpy as np

def subplot_foo(n):
     """ returns a the combination of 2 Line2D instances """
     x = np.arange(0, 200, 0.1)
     y = np.random.randn(len(x))
     print len(x)
     y2 = y+n

     line1 = Line2D(x, y, color = 'k')
     line2 = Line2D(x, y2, color = 'r')

     return line1, line2


fig = figure() # create Figure object
for i in range(1,5):
     ax = fig.add_subplot(2,2,i)

     subplots = subplot_foo(i)
     for subplot in subplots:
         ax.add_line(subplot)

show()

On Wed, Dec 15, 2010 at 9:47 AM, Benjamin Root <ben...@ou...> wrote:

> On Wed, Dec 15, 2010 at 6:25 AM, Teng Liu <lew...@gm...> wrote:
>
>> Linux 2.6.32-25-generic #45-Ubuntu SMP Sat Oct 16 19:48:22 UTC 2010 i686
>> GNU/Linux
>> matplotlib 0.99.1.1
>> The script below is copied from
>> http://matplotlib.sourceforge.net/examples/pylab_examples/hatch_demo.html
>> It works. But it can not be saved as an eps file.
>> I have a lot of histogram plots using "hatch" needed to be saved as eps,
>> is it possible to fix this bug?
>> Thanks.
>>
>> """
>>
>>
>> Hatching (pattern filled polygons) is supported currently in the PS,
>> PDF, SVG and Agg backends only.
>> """
>> import matplotlib.pyplot as plt
>>
>>
>> from matplotlib.patches import Ellipse, Polygon
>>
>> fig = plt.figure()
>>
>>
>> ax1 = fig.add_subplot(131)
>> ax1.bar(range(1,5), range(1,5), color='red', edgecolor='black', hatch="/")
>>
>>
>> ax1.bar(range(1,5), [6] * 4, bottom=range(1,5), color='blue', edgecolor='black', hatch='//')
>>
>>
>> ax1.set_xticks([1.5,2.5,3.5,4.5])
>>
>> ax2 = fig.add_subplot(132)
>> bars = ax2.bar(range(1,5), range(1,5), color='yellow', ecolor='black') + \
>>
>>
>>
>>     ax2.bar(range(1, 5), [6] * 4, bottom=range(1,5), color='green', ecolor='black')
>>
>>
>> ax2.set_xticks([1.5,2.5,3.5,4.5])
>>
>> patterns = ('-', '+', 'x', '\\', '*', 'o', 'O', '.')
>>
>>
>> for bar, pattern in zip(bars, patterns):
>>
>>      bar.set_hatch(pattern)
>>
>> ax3 = fig.add_subplot(133)
>>
>>
>> ax3.fill([1,3,3,1],[1,1,2,2], fill=False, hatch='\\')
>>
>>
>> ax3.add_patch(Ellipse((4,1.5), 4, 0.5, fill=False, hatch='*'))
>>
>>
>> ax3.add_patch(Polygon([[0,0],[4,1.1],[6,2.5],[2,1.4]], closed=True,
>>
>>
>>
>>                       fill=False, hatch='/'))
>> ax3.set_xlim((0,6))
>> ax3.set_ylim((0,2.5))
>>
>>
>>
>> plt.show()
>>
>>
>> I was able to run this script and save the eps file just fine.  However,
> the resulting image is completely wrong.  I have attached a screenshot of
> the eps file as viewed in evince.  Essentially, all of the hatching elements
> are not at all what they are supposed to be.
>
> Ben Root
>
>
I am re-pinging this issue.  Could it be a path simplification issue?

Ben Root

Nice!
Still some stuff to enhance but got it!

Thanks a lot.
Ben

Le 19 déc. 10 à 05:30, Jae-Joon Lee a écrit :

> I don't think "polar" is a good fit for your case. Instead, you can
> simply use "data" coordinate with explicit coordinate transformation.
> Try something like;
>
>    for i in xrange(5):
>        theta = i*1.3+1.5
>        xx = center[0]+(radius-4)*math.cos(theta)
>        yy = center[1]+(radius-4)*math.sin(theta)
>        pyplot.annotate(str(i+1), (xx, yy), color='g', va="center",  
> ha="center")
>
> -JJ
>
>
>
> On Thu, Dec 16, 2010 at 5:27 PM, Benoist Laurent <be...@ib...>  
> wrote:
>> Sorry for the delay.
>> This is the script is used (modified so that it include the data).
>>
>>
>>
>> Le 15 déc. 10 à 16:50, Benjamin Root a écrit :
>>
>> On Wed, Dec 15, 2010 at 9:46 AM, Benoist Laurent <be...@ib...>  
>> wrote:
>>>
>>> Hi all,
>>> I'm still a bit stuck with this probleme of polar annotation.
>>> Let me present the problem in a different way.
>>> I've got the center of my circle, its radius and even some points  
>>> on the
>>> circle.
>>> Actually, I'd like to annotate these points (red crosses in the  
>>> joined
>>> picture).
>>> How would you do that?
>>> My best try gave me the green numbers.
>>> Thanks in advance,
>>> Ben
>>>
>>
>> Can you include the source code (if it is simple) that you used to  
>> generate
>> this example, and we could probably help you out.
>>
>> Ben Root
>>
>>
>>
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