On Sun, Dec 16, 2012 at 8:22 PM, Diego Avesani wrote:
> dear all,
> I have plot a 3D picture, I would like to have xy projection with contours
> levels and labels.
> The contours works but I do not get the labels.
>
> This is my code:
>
> import matplotlib.pyplot as plt
>
> from mpl_toolkits.mplo
Hi Bob,
> I am a matplotlib.pyplot novice, but I have looked through various FAQs to no
> avail.
>
> I am plotting a polar graph with some negative values of r. Everything goes
> well until I try to use rgrids(). Am I doing something wrong?
>
> I attach some demo scripts and their outputs.
>
> I am a matplotlib.pyplot novice, but I have looked through various FAQs to no
> avail.
>
> I am plotting a polar graph with some negative values of r. Everything goes
> well until I try to use rgrids(). Am I doing something wrong?
>
> I attach some demo scripts and their outputs.
>
> versi
Hi Bob,
Le 17/12/2012 19:09, Bob Dowling a écrit :
>
> I am plotting a polar graph with some negative values of r.
> Everything goes well until I try to use rgrids(). Am I doing
> something wrong?
I just noticed that calling rgrids *after* plotting works nicely for me:
subplot(111, polar=True)
Le 17/12/2012 21:59, Pierre Haessig a écrit :
> Maybe this the code behind the masking of half your curve, but I don't
> know more.
Looking closer at the plot, the curve is actually not masked !
Actually the "rmin functionality' is activated with rmin=-2*pi so that
the whole r-axis is offset by +2
On Dec 17, 2012, at 1:12 PM, Pierre Haessig wrote:
> Le 17/12/2012 21:59, Pierre Haessig a écrit :
>> Maybe this the code behind the masking of half your curve, but I don't
>> know more.
> Looking closer at the plot, the curve is actually not masked !
>
> Actually the "rmin functionality' is acti
http://en.wikipedia.org/wiki/Polar_coordinate_system#Uniqueness_of_polar_coordinates
fwiw,
Alan Isaac
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On Mon, Dec 10, 2012 at 6:27 PM, Joe Kington wrote:
> On Mon, Dec 10, 2012 at 2:45 AM, Phil Elson wrote:
>>
>> Hi Joe,
>>
>> Thanks for bringing this up, it is certainly valuable to highlight this on
>> the mailinglist. As you say, the change is hard to spot and, I agree, makes
>> library code su
Maybe I'm just not seeing it; I don't see how the definition on wikipedia,
your definition, and matplotlib behavior differ.
import numpy as np
import matplotlib
matplotlib.use('WxAgg')
import matplotlib.pyplot as plt
t = np.linspace(0.0,2.0*np.pi, 50)
r = np.linspace(0.0,2.0*np.pi, 50)
plt.polar
On 2012-12-17 14:36, Andre' Walker-Loud wrote:
> On Dec 17, 2012, at 1:12 PM, Pierre Haessig wrote:
>
>> Le 17/12/2012 21:59, Pierre Haessig a écrit :
>>> Maybe this the code behind the masking of half your curve, but I don't
>>> know more.
>> Looking closer at the plot, the curve is actually not m
>> I reiterate that in polar coordinates, a negative value of "r" does not make
>> sense. It is confusing at best.
>
> This isn't really true. Many standard introductions to polar
> coordinates consider negative r as valid. It's simply treated as a
> radius in the opposite direction
I
On 2012-12-17 20:05, Andre' Walker-Loud wrote:
>>> I reiterate that in polar coordinates, a negative value of "r"
>>> does not make sense. It is confusing at best.
>>
>> This isn't really true. Many standard introductions to polar
>> coordinates consider negative r as valid. It's simply treated
Hi Brendan,
I reiterate that in polar coordinates, a negative value of "r"
does not make sense. It is confusing at best.
>>>
>>> This isn't really true. Many standard introductions to polar
>>> coordinates consider negative r as valid. It's simply treated as
>>> a radius in the oppos
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