On 10/20/2010 11:41 PM, Alexander Dietz wrote: > Hi, > > I am generating a scatter plot with a colorbar, and want to pass on the > colorbar to some function to do something with it, like > > plt.scatter(px, py, c=pz, ...) > cb = plt.colorbar() > foo(cb) > > > My question: How can I extract the range of the colorbar from the cb > object? The colorbar extends from min(pz) to max(pz), but can I access > these values from the cb object alone, without the need to pass pz to > foo as well?
cb.norm.vmin cb.norm.vmax Or you can get the same thing from the collection returned by scatter: col = scatter(...) col.norm.vmin col.norm.vmax The colorbar uses the norm and colormap from the current image (or more generally, the color-mappable object), which in this case is the collection generated by scatter(). Eric > > > Thanks > Alex > > > > ------------------------------------------------------------------------------ > 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 ------------------------------------------------------------------------------ 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
