matplotlib.axes.Axes.axhspan() in Python
Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. The Axes Class contains most of the figure elements: Axis, Tick, Line2D, Text, Polygon, etc., and sets the coordinate system. And the instances of Axes supports callbacks through a callbacks attribute.
matplotlib.axes.Axes.axhspan() Function
The Axes.axhspan() function in axes module of matplotlib library is used to add a horizontal span (rectangle) across the axis.
Syntax:
Axes.axhspan(self, ymin, ymax, xmin=0, xmax=1, **kwargs)
Parameters: This method accept the following parameters that are described below:
- ymin: This parameter is the lower limit of the horizontal span in data units.
- ymax: This parameter is the upper limit of the horizontal span in data units.
- xmin: This parameter is the lower limit of the vertical span in data units.
- xmax: This parameter is the upper limit of the vertical span in data units.
Returns: This returns the Polygon.
Below examples illustrate the matplotlib.axes.Axes.axhspan() function in matplotlib.axes:
Example-1:
import matplotlib.pyplot as plt
import numpy as np
fig, ax = plt.subplots()
ax.axhspan( 1.25 , 1.55 , facecolor = 'g' , alpha = 0.5 )
ax.set_title( 'matplotlib.axes.Axes.axhspan() Example' )
plt.show()
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Output:
Example-2:
import numpy as np
import matplotlib.pyplot as plt
t = np.arange( - 2 , 3 , . 01 )
s = np.sin(np.pi * t)
fig, ax = plt.subplots()
ax.plot(t, s, color = 'black' )
ax.axhline(y = 1 , color = 'black' )
ax.axvline(x = 1 , color = 'black' )
ax.axvline(x = 0 , ymin = 0.75 , linewidth = 8 , color = 'green' )
ax.axhline(y = . 5 , xmin = 0.25 , xmax = 0.75 , color = 'black' )
ax.axhspan( 0.25 , 0.75 , facecolor = '0.5' , alpha = 0.5 )
ax.axvspan( 1.25 , 1.55 , facecolor = 'green' , alpha = 0.5 )
ax.set_title( 'matplotlib.axes.Axes.axhspan() Example' )
plt.show()
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Output:
Last Updated :
13 Apr, 2020
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