Ryan Neve wrote: > Thank you for the suggestion, but I couldn't see a difference with > "antialiased" either True or False. The lines between contour levels remain. > I tried a different colormap (spectral) but it had the same effect. I > tried more color levels (256) but the effect got worse. > > I can't find any example pictures online of matplotlib's contourf() > producing a "smooth" plot, I know matlab's does it: > http://www.mbari.org/bog/Projects/CentralCal/summary/images/m1_nuts_ts_contour.jpg
That looks to me like a pcolor plot, not a contourf plot, regardless of what the file name says. And, maybe it is my eyes, but it looks to me like there are artifacts in the colorbar. In any case, if you are plotting a very densely sampled data set, you may want to use the Axes.pcolorfast method or the pcolormesh function or method instead of contourf. Contouring, filled or not, is suitable for data in which you want to bring out a moderate number of regions, not for data with highly complex structure and texture, or if you want essentially a smooth color progression. Eric > > > -Ryan > > On Wed, Nov 11, 2009 at 5:08 PM, Eric Firing <efir...@hawaii.edu > <mailto:efir...@hawaii.edu>> wrote: > > Ryan Neve wrote: > > Hello, > In my filled contour plot: http://imgur.com/vXoCL.png > There are faint lines between the contour levels. I think they > are yellow since they disappear in the yellow parts of the graph > and are most obvious in the red areas. Is there any way to get > rid of these lines? The number of contour levels is arbitrary, > and I don't need them emphasized with a moire pattern. > > > Try experimenting with the "antialiased" kwarg in your call to > contourf. It is a boolean; see if a value of True or False gives a > better result. > > Eric > > > Thank you, > > -Ryan > > > > ------------------------------------------------------------------------ > > > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports > 2008 30-Day trial. Simplify your report design, integration and > deployment - and focus on what you do best, core application > coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > > > > ------------------------------------------------------------------------ > > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > <mailto:Matplotlib-users@lists.sourceforge.net> > > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > > ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
