Bokeh - Rectangle, Ellipse and Polygon

It is possible to render rectangle, ellipse and polygons in a Bokeh figure. The rect() method of Figure class adds a rectangle glyph based on x and y coordinates of center, width and height. The scatter(marker="square") method on the other hand has size parameter to decide dimensions.

The ellipse() method adds an ellipse glyph. They use similar signature to that of rect() having x, y,w and h parameters. Additionally, angle parameter determines rotation from horizontal.

Example - Usage of rect glyph

main.py

from bokeh.plotting import figure, output_file, show

fig = figure(width = 300, height = 300)
fig.rect(x = 10,y = 10,width = 100, height = 50, width_units = 'screen', height_units = 'screen')

show(fig)

Output

Run the code and verify the output in the browser.

(myenv) D:\bokeh\myenv>py main.py

Example - Usage of square glyph

main.py

from bokeh.plotting import figure, output_file, show

fig = figure(width = 300, height = 300)
fig.scatter(marker='square',x = 2,y = 3,size = 80, color = 'red')

show(fig)

Output

Run the code and verify the output in the browser.

(myenv) D:\bokeh\myenv>py main.py

Example - Usage of ellipse glyph

main.py

from bokeh.plotting import figure, output_file, show

fig = figure(width = 300, height = 300)
fig.ellipse(x = 7,y = 6, width = 30, height = 10, fill_color = None, line_width = 2)

show(fig)

Output

Run the code and verify the output in the browser.

(myenv) D:\bokeh\myenv>py main.py