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 suggest that there are options specified by kwargs what the >> behavior is. The default could be the current behavior, which sounds like >> it is standard to some, and another option would be to complain if r < 0, as >> I think many others would expect. > I fully agree with the idea of enabling users to specify the behavior > they want. I'm not sure about raising an error, but it's true that it > can be pretty helpful to detect computational mistakes.
This (above) sums up why I would like to have the option of matplotlib error raising for negative values of r. Just to set the scene, I come from a physics background. So for me, and any application I would have, r is interpreted as a radius bounded from [0,inf]. Otherwise, keeping track, for example, of the motion of an object in polar coordinates would be more difficult. Constructing polar coordinates is not always obvious, and one can make a mistake. Especially with something like matplotlib, where it is easy to experiment, sometimes one just throws the parameterization at the computer and sees what comes out. >From this perspective, it would be nice if I were to get a warning or error >message. I am perfectly happy to have the default behavior remain what it is. I wish I were in a position to actually contribute to adding this new option. At the moment, I am in the midst of job hunting season, and would not be able to attempt it for a few months. If no one has taken up the task by then, and a developer were willing to look over my shoulder now and then, I would be interested in trying to add such an option. I have not yet contributed in such a way. 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
