Matplotlib.axes.Axes.get_default_bbox_extra_artists() in Python
Last Updated :
30 Apr, 2020
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.get_default_bbox_extra_artists() Function
The Axes.get_default_bbox_extra_artists() function in axes module of matplotlib library is used to get the default list of artists that are used for the bounding box calculation..
Syntax: Axes.get_default_bbox_extra_artists(self)
Parameters: This method does not accepts any parameter.
Returns: This method return the default list of artists that are used for the bounding box calculation.
Below examples illustrate the matplotlib.axes.Axes.get_default_bbox_extra_artists() function in matplotlib.axes:
Example 1:
import matplotlib.pyplot as plt
import matplotlib.tri as tri
import numpy as np
n_angles = 36
n_radii = 10
min_radius = 2
radii = np.linspace(min_radius, 0.95 , n_radii)
angles = np.linspace( 0 , 2 * np.pi,
n_angles,
endpoint = False )
angles = np.repeat(angles[..., np.newaxis],
n_radii, axis = 1 )
angles[:, 1 :: 2 ] + = 2 * np.pi / n_angles
x = (radii * np.cos(angles)).flatten()
y = (radii * np.sin(angles)).flatten()
triang = tri.Triangulation(x, y)
triang.set_mask(np.hypot(x[triang.triangles].mean(axis = 1 ),
y[triang.triangles].mean(axis = 1 ))
< min_radius)
fig, ax = plt.subplots()
ax.triplot(triang, 'bo-' , lw = 1 , color = "green" )
w = ax.get_default_bbox_extra_artists()
print ( "Value Return by get_default_bbox_extra_artists() :" )
for i in w:
print (i)
fig.suptitle('matplotlib.axes.Axes.get_default_bbox_extra_artists()\
function Example\n\n', fontweight = "bold" )
fig.canvas.draw()
plt.show()
|
Output:
Value Return by get_default_bbox_extra_artists() :
Line2D(_line0)
Line2D(_line1)
Spine
Spine
Spine
Spine
XAxis(80.0, 52.8)
YAxis(80.0, 52.8)
Text(0.5, 1.0, '')
Text(0.0, 1.0, '')
Text(1.0, 1.0, '')
Rectangle(xy=(0, 0), width=1, height=1, angle=0)
Example 2:
import matplotlib.pyplot as plt
fig, ax1 = plt.subplots( )
ax1.set_xscale( "log" )
ax1.set_yscale( "log" )
ax1.set_adjustable( "datalim" )
ax1.plot([ 1 , 3 , 34 , 4 , 46 , 3 , 7 , 45 , 10 ],
[ 1 , 9 , 27 , 8 , 29 , 84 , 78 , 19 , 48 ],
"o-" , color = "green" )
ax1.set_xlim( 1e - 1 , 1e2 )
ax1.set_ylim( 1 , 1e2 )
w = ax1.get_default_bbox_extra_artists()
print ( "Value Return by get_default_bbox_extra_artists() :" )
for i in w:
print (i)
fig.suptitle('matplotlib.axes.Axes.get_default_bbox_extra_artists()\
function Example\n\n', fontweight = "bold" )
fig.canvas.draw()
plt.show()
|
Output:
Value Return by get_default_bbox_extra_artists() :
Line2D(_line0)
Spine
Spine
Spine
Spine
XAxis(80.0, 52.8)
YAxis(80.0, 52.8)
Text(0.5, 1.0, '')
Text(0.0, 1.0, '')
Text(1.0, 1.0, '')
Rectangle(xy=(0, 0), width=1, height=1, angle=0)
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