Hi Andre,
Le 18/12/2012 06:52, Andre' Walker-Loud a écrit :
There is no mention in the docs about the treatment of negative r. The
treatment is contrary to my expectations, and I would wager contrary to many
peoples expectations. So at a new minimum, at the very least, the docs
should
This is causing so much fuss, I'm starting to feel bad about asking the
question. I'll reply in the uniqueness thread about the (r,th)
coordinate system from a mathematical perspective.
From a matplotlib.pyplot user perspective, however, I think that if it
is going to misbehave with negative
Le 18/12/2012 11:13, Bob Dowling a écrit :
Any how, the answer seems to be yes I'm using rgrids() correctly, but
no I'm not using matplotlib-friendly data points. I shall adjust my
values of (r,th).
You don't need to change your (r,th) values. The two workarounds I see
to get your version2
Hi Pierre,
There is no mention in the docs about the treatment of negative r. The
treatment is contrary to my expectations, and I would wager contrary to many
peoples expectations. So at a new minimum, at the very least, the docs
should make clear what is happening.
I would further
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.
version1.py
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
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 activated
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
In
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 as
a radius
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 opposite direction
In
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