Re: [Matplotlib-users] Undocumented transform API change between 1.1 and 1.2?

2012-12-18 Thread Darren Dale
On Mon, Dec 10, 2012 at 3:45 AM, Phil Elson wrote: > 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 supporting v1.1.1 and v1.2 harder than one would like. > Typically, anything

Re: [Matplotlib-users] 3d performance question

2012-12-18 Thread Michael Droettboom
On 12/18/2012 09:21 AM, Jason Grout wrote: > On 12/18/12 6:53 AM, Sturla Molden wrote: >> Interactive 2D plots can be sluggish too, if you have enough objects in >> them. It is not the backend that is sluggish. Replacing the backend does >> not speed up the frontend. >> >> OpenGL is only 'fast' if

Re: [Matplotlib-users] 3d performance question

2012-12-18 Thread Michael Droettboom
This is a great summary of the issues related to OpenGL, and how it can help but is not a universal panacea. Thanks, Mike On 12/18/2012 08:53 AM, Sturla Molden wrote: > Interactive 2D plots can be sluggish too, if you have enough objects in > them. It is not the backend that is sluggish. Replaci

Re: [Matplotlib-users] uniqueness of polar coordinates (meaningfulness of r<0)

2012-12-18 Thread Michael Droettboom
Sorry -- I hadn't meant to be terse: I hadn't realised until now that this was related to the other thread. I think it's an interesting discussion, and we should probably find some way to address it -- perhaps that means that `polar` grows an option to affect negative handling. Mike On 12/18/

Re: [Matplotlib-users] Novice question: Am I using pyplot.rgrids correctly?

2012-12-18 Thread Andre' Walker-Loud
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 wou

Re: [Matplotlib-users] uniqueness of polar coordinates (meaningfulness of r<0)

2012-12-18 Thread Andre' Walker-Loud
>> Is this in reference to issue #1603? Are you advocating changing the >> solution? > > > > My only point was that the ongoing conversation should > not accept uncritically the assertion that r<0 is senseless. and I finally appreciate that criticism. >From my perspective, I was happy to learn

Re: [Matplotlib-users] uniqueness of polar coordinates (meaningfulness of r<0)

2012-12-18 Thread Alan G Isaac
On 12/18/2012 9:40 AM, Michael Droettboom wrote: > Is this in reference to issue #1603? Are you advocating changing the > solution? My only point was that the ongoing conversation should not accept uncritically the assertion that r<0 is senseless. Thus I cited one example of the common accepta

Re: [Matplotlib-users] Undocumented transform API change between 1.1 and 1.2?

2012-12-18 Thread Michael Droettboom
> Is there anything we could do to give this important information a > little more visibility on the webpage? The webpage still indicates > that 1.2.0 is a development version. Oops. That's been updated. > Perhaps we could update it to > say: > > "1.2.0 The most current stable release. Click h

Re: [Matplotlib-users] uniqueness of polar coordinates (meaningfulness of r<0)

2012-12-18 Thread Michael Droettboom
Is this in reference to issue #1603? Are you advocating changing the solution? Cheers, Mike On 12/17/2012 05:50 PM, Alan G Isaac wrote: > http://en.wikipedia.org/wiki/Polar_coordinate_system#Uniqueness_of_polar_coordinates > > fwiw, > Alan Isaac > > --

Re: [Matplotlib-users] 3d performance question

2012-12-18 Thread Jason Grout
On 12/18/12 6:53 AM, Sturla Molden wrote: > Interactive 2D plots can be sluggish too, if you have enough objects in > them. It is not the backend that is sluggish. Replacing the backend does > not speed up the frontend. > > OpenGL is only 'fast' if you have a frontend that exploits it (e.g. uses >

Re: [Matplotlib-users] 3d performance question

2012-12-18 Thread Sturla Molden
Interactive 2D plots can be sluggish too, if you have enough objects in them. It is not the backend that is sluggish. Replacing the backend does not speed up the frontend. OpenGL is only 'fast' if you have a frontend that exploits it (e.g. uses vertex buffers and vertex shaders). If you just us

Re: [Matplotlib-users] Novice question: Am I using pyplot.rgrids correctly?

2012-12-18 Thread Pierre Haessig
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 "versi

Re: [Matplotlib-users] Novice question: Am I using pyplot.rgrids correctly?

2012-12-18 Thread Bob Dowling
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 negativ

Re: [Matplotlib-users] Novice question: Am I using pyplot.rgrids correctly?

2012-12-18 Thread Pierre Haessig
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 > shou