Python Bokeh – Plotting Rays on a Graph
Last Updated :
10 Jul, 2020
Bokeh is a Python interactive data visualization. It renders its plots using HTML and JavaScript. It targets modern web browsers for presentation providing elegant, concise construction of novel graphics with high-performance interactivity.
Bokeh can be used to plot rays on a graph. Plotting rays on a graph can be done using the ray()
method of the plotting
module.
plotting.figure.ray()
Syntax : ray(parameters)
Parameters :
- x : x-coordinates of the starting points of the rays
- y : y-coordinates of the starting points of the rays
- length : length of the ray
- length_units : unit of the length of the rays
Returns : an object of class GlyphRenderer
Example 1 : In this example we will be using the default values for plotting the graph.
from bokeh.plotting import figure, output_file, show
output_file( "gfg.html" )
graph = figure(title = "Bokeh Rays Graph" )
x = 0
y = 0
graph.ray(x, y)
show(graph)
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Output :
Example 2 : In this example we will be plotting multiple rays with various other parameters.
from bokeh.plotting import figure, output_file, show
from bokeh.palettes import magma
import numpy
output_file( "gfg.html" )
graph = figure(title = "Bokeh Rays Graph" )
graph.xaxis.axis_label = "x-axis"
graph.yaxis.axis_label = "y-axis"
x = [ 0 ] * 256
y = [ 0 ] * 256
angle = numpy.linspace( 0.00 , 6.28 , num = 256 ).tolist()
color = magma( 256 )
graph.ray(x, y,
angle = angle,
color = color)
show(graph)
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Output :
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