Hi there,
Still fairly new to using Bokeh, but I’m trying my best to get a hang of it.
I’m adding lines to a plot on demand, and I want to be able to remove them again. I’m encountering the issue, that if I add lines after the show command and apply them using push_notebook I can’t update them. I don’t know if this is intentional or if I’m doing something wrong.
Example 1: Calling show after everything is added
import bokeh.plotting.figure as bk_figure
import numpy as np
from bokeh.io import push_notebook, show, output_notebook
from bokeh.models import ColumnDataSource, Line
from bokeh.palettes import Category10 as palette
output_notebook()
plot = bk_figure(plot_width=590, plot_height=400, title="Legend Test Plot", x_axis_label="X Value", y_axis_label="Y Value")
x = np.arange(1, 11)
y = x ** 0
source = ColumnDataSource(data={'x':x,'y':y})
glyph = Line(x='x',y='y')
glyph = plot.add_glyph(source,glyph)
x = np.arange(1, 11)
y = x ** 1
color = palette[10][0]
source = ColumnDataSource(data={'x':x,'y':y})
glyph = Line(x='x',y='y',line_color=color)
glyph = plot.add_glyph(source,glyph)
x = np.arange(1, 11)
y = x ** 2
color = palette[10][1]
source = ColumnDataSource(data={'x':x,'y':y})
glyph = Line(x='x',y='y',line_color=color)
glyph = plot.add_glyph(source,glyph)
h = show(plot, notebook_handle=True)
Here everything is fine. I can go and do
plot.renderers[2].visible = False
push_notebook(handle=h)
and it will hide the line just fine. However, as my lines are going to be added dynamically, it will look more like this:
import bokeh.plotting.figure as bk_figure
import numpy as np
from bokeh.io import push_notebook, show, output_notebook
from bokeh.models import ColumnDataSource, Line
from bokeh.palettes import Category10 as palette
output_notebook()
plot = bk_figure(plot_width=590, plot_height=400, title="Legend Test Plot", x_axis_label="X Value", y_axis_label="Y Value")
x = np.arange(1, 11)
y = x ** 0
source = ColumnDataSource(data={'x':x,'y':y})
glyph = Line(x='x',y='y')
glyph = plot.add_glyph(source,glyph)
h = show(plot, notebook_handle=True)
x = np.arange(1, 11)
y = x ** 1
color = palette[10][0]
source = ColumnDataSource(data={'x':x,'y':y})
glyph = Line(x='x',y='y',line_color=color)
glyph = plot.add_glyph(source,glyph)
push_notebook(handle=h)
x = np.arange(1, 11)
y = x ** 2
color = palette[10][1]
source = ColumnDataSource(data={'x':x,'y':y})
glyph = Line(x='x',y='y',line_color=color)
glyph = plot.add_glyph(source,glyph)
push_notebook(handle=h)
and now, I can’t interact with the 2 lines added after the show. This won’t work
plot.renderers[2].visible = False
push_notebook(handle=h)
but this will
plot.renderers[0].visible = False
push_notebook(handle=h)
Why I’m not using the widgets from Bokeh and making an app
This is how the “application” is going to look:
I’m not saying it is pretty, but the key thing is the selection widget used for
Files, as there can be 10 000+ files to select from, I need the search bar and requiring the user to keep pressing ctrl is not a nice solution when selecting multiple, so I’m using a combination of widgets from ipywidgets, and then placing the bokeh plot inside a ipywidget grid.
If I could fix this removal of lines issue, then my “application” would be all set and ready to use, so I was hoping someone here could assist me in a solution.