Rendering Circles
In order to add the circle glyph to your plot, we use the circle() method instead of the line() method used in the above example.
Circle(): We use this method to add a circle glyph to the plot. It takes x and y coordinates of the center as parameters. Apart from these, it takes parameters such as size, fill_color,fill_alpha,angle, line_color, line_alpha,radius,radius_dimensions,etc
Syntax:
p.circle(x, y, size, fill_color)
Criss_cross(): this method adds a circle glyph with a ‘+’ mark through the center of the circle and it takes x and y coordinates of the center.
Syntax:
p.circle_cross(x, y, size, fill_color, fill_alpha, line_width)
Circle_X(): This method adds a circle glyph with an ‘X’ mark through the center of the circle and it takes x and y coordinates of the center.
Syntax:
p.circle_x(x, y, size,fill_color, fill_alpha, line_width)
Code:
Python
from bokeh.plotting import figure, showfrom bokeh.io import output_file# prepare some datax = [1, 2, 4, 6, 7]y = [7, 6, 3, 9, 10]# create a new plot with figure functionp = figure(title="Circle Glyph", plot_width=450, plot_height=400)# create circle glyphp.circle(x=x, y=y, size=25, fill_color="red")p.circle_cross(x=[2, 4, 6, 8], y=[5, 8, 9, 11], size=25, fill_color="blue", fill_alpha=0.3, line_width=2)p.circle_x(x=[4, 7, 2, 6], y=[7, 2, 4, 9], size=25, fill_color="green", fill_alpha=0.6, line_width=2)# show the resultsoutput_file('circle.html')show(p) |
Output:
Glyphs in Bokeh
Bokeh is a library of Python which is used to create interactive data visualizations. In this article, we will discuss glyphs in Bokeh. But at first let’s see how to install Bokeh in Python.