On Fri, Aug 20, 2010 at 10:25 AM, Jonathan Slavin <jsla...@cfa.harvard.edu>wrote:
> Tinne, > > Thanks. I think I had tried that but with mfc=None -- that is without > None in quotes as if it were a string. I have to say it's a bit odd to > have it in quotes since generally it is a different data type entirely > (None type). > > Jon > > On Fri, 2010-08-20 at 17:12 +0200, Tinne De Laet wrote: > > Hi Jonathan, > > > > On Fri, Aug 20, 2010 at 16:29, Jonathan Slavin <jsla...@cfa.harvard.edu> > wrote: > > > To all: > > > > > > I'm wondering if there is any way to make plots with open symbols, e.g. > > > a circle. I know how to use markers that look open, e.g. by doing > > > something like, > > > plot(x,y,marker='o',mfc='w') > > > They are white in the center, but they're not really open since they > > > block out whatever is behind them. I tried using a color with > > > transparency, say alpha=0.1 or something (mfc=(1.,1.,1.,0.1)) but that > > > didn't work. What I have in mind is illustrated in the attached plot, > > > which I made some time ago in IDL. Is there an easy way to define your > > > own markers for plotting? > > > > just use mfc='None' > > > > > > Tinne > -- > John, This used to trip me up as well. However, for colors in matplotlib, None (without quotes) tells mpl to use the default color, while 'None' (typically not case-sensitive) means "do not plot any color". I hope that clears things up. Ben Root
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