Patch Glyph
The patch glyph shades a region of space in a particular color. We use the patch() method to develop a single patch and patches() method to develop multiple patches.
Single patch
Syntax:
p.patch(x, y, fill_color, line_color, alpha, line_width)
Code:
Python
# Bokeh librariesfrom bokeh.plotting import figure, show, output_file# datax = [1, 2, 3, 4, 5]y = [6, 7, 8, 5, 2]# Create a figurep = figure(title='Patch Glyph', plot_height=400, plot_width=600, x_axis_label='x', y_axis_label='y', toolbar_location=None)# add patch glyphp.patch(x, y, fill_color="blue", line_color='black', alpha=0.5, line_width=2)# show the resultsshow(p)output_file("ex.html") |
Output:
Multiple Patches
Multiple patches can be created in a similar way by using the function patches() instead of patch(). We are passing the data in the form of a list of arrays for creating three patches with different colors in the example shown below.
Code:
Python
# Bokeh librariesfrom bokeh.plotting import figure, show, output_file# datax = [[1, 2, 3], [4, 6, 8], [2, 4, 5, 4]]y = [[2, 5, 6], [3, 6, 7], [2, 4, 7, 8]]# Create a figurep = figure(title='Patch Glyph', plot_height=400, plot_width=600, x_axis_label='x', y_axis_label='y', toolbar_location=None)# add patches glyphp.patches(x, y, fill_color=["blue", "green", "yellow"], line_width=2)# show the resultsshow(p)output_file("ex.html") |
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.
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