i’m successfully using ColumnDataSource to dynamically change the ‘y’ of a plot.line(). i would also like to change it’s line_color, which is a keyword argument. the usual pattern with a ColumnDataSource is not working. is there a way? thanks.
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ColumnDataSource on keyword argument?
Hi,
Sorry, I don't really understand what it is you are attempting, in terms of actual code, from that description. Providing some real code snippets is the best way to help others help you.
Thanks,
Bryan
···
On Oct 26, 2018, at 08:00, bjarthur70@gmail.com wrote:
i'm successfully using ColumnDataSource to dynamically change the 'y' of a plot.line(). i would also like to change it's line_color, which is a keyword argument. the usual pattern with a ColumnDataSource is not working. is there a way? thanks.
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in a preamble i do this:
wav_source = ColumnDataSource(data=dict(x=, y=))
p_wav.line(‘x’, ‘y’, source=wav_sources)
then later on in a callback i do this:
wav_source.data.update(x=xdata, y=ydata)
how do i change line_color too?
Hi,
Line only draws one line, so it only has one color. You probably want:
r = p_wav.line('x', 'y', source=wav_sources)
then later:
r.glyph.line_color = new_color
If that's not what you are are looking for then more information is needed about exactly what your situation is.
Thanks,
Bryan
···
On Oct 26, 2018, at 09:58, bjarthur70@gmail.com wrote:
in a preamble i do this:
wav_source = ColumnDataSource(data=dict(x=, y=))
p_wav.line('x', 'y', source=wav_sources)then later on in a callback i do this:
wav_source.data.update(x=xdata, y=ydata)
how do i change line_color too?
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Hi Bryan,
Thanks for getting back to me. In terms of code. Here is what works:
Initialize the source
source = ColumnDataSource(dict(time=np.zeros(10), y= np.zeros(10))
Now use these quantities to plot some figures
fig = figure(… details…)
fig.line(x=‘time’, y=‘y’, source=source)
Now for each iteration in the my update function
def update(t):
···
On Friday, 26 October 2018 11:49:26 UTC-4, Bryan Van de ven wrote:
Hi,
Sorry, I don’t really understand what it is you are attempting, in terms of actual code, from that description. Providing some real code snippets is the best way to help others help you.
Thanks,
Bryan
On Oct 26, 2018, at 08:00, bjart...@gmail.com wrote:
i’m successfully using ColumnDataSource to dynamically change the ‘y’ of a plot.line(). i would also like to change it’s line_color, which is a keyword argument. the usual pattern with a ColumnDataSource is not working. is there a way? thanks.
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For more options, visit https://groups.google.com/a/continuum.io/d/optout.
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