Eric Firing <efiring-msmayosy5ky3upmlikx...@public.gmane.org> writes: >> I don't know if there are any strict requirement on monotonicity for X >> and Y, or if there are any cases where the plot is still valid even if >> that property is violated. If it is a requirement, then I agree that >> there should be a check. > > For sensible output, it is a requirement. Contour and contourf (like > imshow, pcolor, and pcolormesh) work with gridded data. Gridding is the > responsibility of the user. It can be done in many different ways, so > it makes sense to keep the gridding separate from the display of the > gridded data. > > If there is a check--and I am not convinced there should be--it should > provide only a warning. It is perfectly reasonable for a person to take > a dataset and contour it even if the grid is not monotonic. Sometimes > one wants to get a quick look at raw input, complete with errors.
I don't quite understand your last point. In my example, the single jump from pi to -pi makes half of the plot constant while in truth it is oscillatory. I would not say that this reflects the "raw input" in any way, and I am not sure what one could learn from this plot with a quick (or even prolonged) look. Am I missing something? Is there some obvious connection between the jump in Theta, the data, and the resulting plot? To me the plot looks like unpredictable garbage, so I really don't understand how anyone could want to do something like that... Best, -Nikolaus -- »Time flies like an arrow, fruit flies like a Banana.« PGP fingerprint: 5B93 61F8 4EA2 E279 ABF6 02CF A9AD B7F8 AE4E 425C ------------------------------------------------------------------------------ Nokia and AT&T present the 2010 Calling All Innovators-North America contest Create new apps & games for the Nokia N8 for consumers in U.S. and Canada $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store http://p.sf.net/sfu/nokia-dev2dev _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
