Eric Firing wrote: > Jae-Joon Lee wrote: >> The default resolution (which is used to interpolate a path in polar >> coordinate) has change to 1 at some point. And because of this, a >> radial grid becomes a 0-length line. Increasing the resolution will >> bring back your gridlines. > > This is not the right solution, though. There was a reason for the > change in default resolution to 1--it gives the expected behavior for > plotting a line between two points in polar coordinates--and it is not > going back. The inability to set resolution on a per-artist basis is a > serious problem that doesn't seem to have a simple solution. Until one > can be found, some sort of special case handling will be needed for the > radial grid lines. > > Eric
Expanding on this: it looks like a possible solution is to attach a new "resolution" attribute to the Path object. This would ordinarily be None, but could be set to another value when the Path is created (or later). Then the PolarTransform.transform_path method (and the same in other curvilinear projections) could use that value, if not None, to control interpolation. Some additional changes would be needed to apply this to the radial gridlines. Now it is not clear to me that resolution should be an attribute of the PolarAxes at all--the interpolation is done by a path method, so that method doesn't need a resolution parameter at all if resolution is a Path attribute. Except for backwards compatibility. Comments, Mike? I can't implement it right now, but if no one comes up with a better solution, or wants to implement something like this one, then I can do it in a day or two. (Of course, I may not be seeing a stumbling block.) Eric ------------------------------------------------------------------------------ Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT is a gathering of tech-side developers & brand creativity professionals. Meet the minds behind Google Creative Lab, Visual Complexity, Processing, & iPhoneDevCamp asthey present alongside digital heavyweights like Barbarian Group, R/GA, & Big Spaceship. http://www.creativitycat.com _______________________________________________ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
