Created
July 8, 2018 01:03
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Bokeh issue
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import numpy as np | |
from bokeh.layouts import column, row | |
from bokeh.models import CustomJS, ColumnDataSource, Slider | |
from bokeh.plotting import figure, output_file, show | |
from bokeh.core.property.containers import PropertyValueDict | |
output_file('test.html') | |
default_y0 = 0.0 | |
default_y1 = 10.0 | |
N = 10 | |
x = np.linspace(0, 10, N) | |
y0_arr = default_y0 * np.ones(N) | |
y1_arr = default_y1 * np.ones(N) | |
source = ColumnDataSource(data=dict( | |
x=x, | |
y0=y0_arr, | |
y1=y1_arr, | |
)) | |
state = PropertyValueDict(dict( | |
y0=default_y0, | |
y1=default_y1)) | |
update_plots = """\ | |
var data = source.data; | |
var y0_val = state['y0']; | |
var y1_val = state['y1']; | |
var x = data['x']; | |
var y0 = data['y0']; | |
var y1 = data['y1']; | |
for (var i = 0; i < x.length; i++) { | |
y0[i] = y0_val | |
y1[i] = y1_val | |
} | |
source.change.emit(); | |
""" | |
def make_change_value_callback(element): | |
return CustomJS(args=dict(state=state, source=source), code=""" | |
state['{}'] = cb_obj.value; | |
""".format(element) + update_plots) | |
y0_slider_callback = make_change_value_callback('y0') | |
y1_slider_callback = make_change_value_callback('y1') | |
y0_slider = Slider(start=1, end=100, value=default_y0, step=0.1, title="y0") | |
y0_slider.js_on_change('value', y0_slider_callback) | |
y1_slider = Slider(start=1, end=100, value=default_y1, step=0.1, title="y1") | |
y1_slider.js_on_change('value', y1_slider_callback) | |
s1 = figure(plot_width=500, plot_height=400, title='test') | |
s1.line(x='x', y='y0', source=source, line_color='blue', legend='y0') | |
s1.line(x='x', y='y1', source=source, line_color='red', legend='y1') | |
show(column( | |
row(y0_slider, y1_slider), | |
s1 | |
)) |
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