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 with rmin=-2*pi so that > the whole r-axis is offset by +2pi. The plot is therefore pretty > consistent only it is not what you want, I guess. > I don't know how to disable this radius offset functionality.
Hi Pierre, Bob and all, I reiterate that in polar coordinates, a negative value of "r" does not make sense. It is confusing at best. At the very least, I think matplotlib should raise a NOISY warning. (I just checked that it does not). I would advocate for a change however. I suggest that given negative values of "r", pyplot.polar raises an error and exits. One could add a kwarg that allows you to override this default behavior, "neg_r=False" unless the user specifies otherwise. In general, when I code things that don't make sense mathematically, I like it when the code tells me I made a dumb mistake. If the code is defaulting to "fixing" the dumb mistake for me without any explicit warnings, that is more likely to raise a more serious error in my code, and a much harder bug to track down. My two cents (well, it looks like a bit more than two). Regards, Andre ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
