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' ...
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
> > its effect on application quality, and explores various alternative
> > solutions. http://p.sf.net/sfu/progress-d2d
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> >
> >
>
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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
> _______________________________________________
> Matplotlib-users mailing list
> Matplotlib-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
------------------------------------------------------------------------------
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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