On 03/06/2011 09:14 PM, Thomas Lecocq wrote:
> Dear,
>
> Please also note that '+' and 'x' are "lines", hence if you want them
> coloured, you'll need to set edgecolor="g" rather than just color='g' ...
Exactly, but in the scatter context one shouldn't have to do this. I
consider it a bug, so I will shortly commit a fix. Markers that have no
face showing, only edge, should still behave as expected when a "c"
kwarg is supplied. I think this is what one would expect based on the
docstring.
Eric
>
> HTH
>
> Thom
>
> **********************
> Dr Thomas Lecocq
> Geologist
> Seismology
> Royal Observatory of Belgium
> **********************
>
>
>
> > Date: Fri, 4 Mar 2011 10:49:09 -0800
> > From: scott.han...@navistar.com
> > To: matplotlib-users@lists.sourceforge.net
> > Subject: Re: [Matplotlib-users] Can't set scatter plot point color
> >
> >
> > Thank you for the reply.
> >
> > I discovered this myself yesterday. Now I have an official answer if
> people
> > want a colored + or the x symbol in the scatter plot.
> >
> > Scott Hansen
> >
> >
> >
> > efiring wrote:
> > >
> > > On 03/02/2011 06:42 AM, Mr. Python wrote:
> > >>
> > >> I am unable to set the color of the scatter plot points using the code
> > >> below:
> > >>
> > >> import matplotlib
> > >> matplotlib.use('Qt4Agg')
> > >>
> > >> import matplotlib.pyplot as plt
> > >> import numpy as np
> > >>
> > >> plt.scatter(newSpdVals, newEngLoadVals,c='g',marker='+')
> > >
> > > This is a bug in the handling of symstyle 2, which includes '+' and
> 'x'.
> > >
> > >>
> > >> #Add the graph title and x/y axis labels
> > >> plt.title("Gear Span")
> > >> plt.xlabel("Vehicle Speed (mph)")
> > >> plt.ylabel("Engine Load %")
> > >> plt.show()
> > >>
> > >> No matter what I change the c parameter to ('b','r', etc.), the
> color of
> > >> the
> > >> scatter plot points are always black. The lists newSpdVals and
> > >> newEngLoadVals have 100 dimmensions and are of type numpy.ndarray.
> > >>
> > >> I am using the following software and hardware:
> > >>
> > >> Windows XP
> > >> Python 2.7
> > >> PyQt4 (I launch the plot from a PyQt GUI. I don't embed the plot
> in the
> > >> GUI).
> > >> matplotlib 1.01
> > >>
> > >> In the beginning of the same function where my scatter plot code is, I
> > >> added
> > >> the following code to verify if the problem is due to the
> matplotlib/PyQt
> > >> interface:
> > >>
> > >> a = np.linspace(-10,100,33)
> > >> b = np.linspace(-32,400,33)
> > >> plt.scatter(a, b,color='g',marker='+')
> > >
> > > Note the difference: here you are using a 'color' kwarg that is
> getting
> > > passed directly to the AsteriskPolygonCollection, whereas before you
> > > were using the 'c' kwarg that is being handled incorrectly in this
> case
> > > inside of the scatter code.
> > >
> > > Eric
> > >
> > >> plt.title("Gear Span")
> > >> plt.xlabel("Vehicle Speed (mph)")
> > >> plt.ylabel("Engine Load %")
> > >> plt.show()
> > >>
> > >> The points for this plot are colored green. I'm able to change the
> point
> > >> color to blue, red, etc.
> > >>
> > >> Any ideas why I can't change the point color of my first graph? Thank
> > >> you
> > >> for your help.
> > >>
> > >>
> > >
> > >
> > >
> ------------------------------------------------------------------------------
> > > What You Don't Know About Data Connectivity CAN Hurt You
> > > This paper provides an overview of data connectivity, details
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> > View this message in context:
> http://old.nabble.com/Can%27t-set-scatter-plot-point-color-tp31051071p31070224.html
> > Sent from the matplotlib - users mailing list archive at Nabble.com.
> >
> >
> >
> ------------------------------------------------------------------------------
> > What You Don't Know About Data Connectivity CAN Hurt You
> > This paper provides an overview of data connectivity, details
> > its effect on application quality, and explores various alternative
> > solutions. http://p.sf.net/sfu/progress-d2d
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> ------------------------------------------------------------------------------
> What You Don't Know About Data Connectivity CAN Hurt You
> This paper provides an overview of data connectivity, details
> its effect on application quality, and explores various alternative
> solutions. http://p.sf.net/sfu/progress-d2d
>
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What You Don't Know About Data Connectivity CAN Hurt You
This paper provides an overview of data connectivity, details
its effect on application quality, and explores various alternative
solutions. http://p.sf.net/sfu/progress-d2d
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