FilesExpand file tree

 master

/

span_regions.py

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

31 lines (22 loc) · 783 Bytes

 master

/

span_regions.py

Copy path

Top

File metadata and controls

• Code
• Blame

31 lines (22 loc) · 783 Bytes

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

"""

Illustrate some helper functions for shading regions where a logical

mask is True

See :meth:`matplotlib.collections.BrokenBarHCollection.span_where`

"""

import numpy as np

import matplotlib.pyplot as plt

import matplotlib.collections as collections

t = np.arange(0.0, 2, 0.01)

s1 = np.sin(2*np.pi*t)

s2 = 1.2*np.sin(4*np.pi*t)

fig, ax = plt.subplots()

ax.set_title('using span_where')

ax.plot(t, s1, color='black')

ax.axhline(0, color='black', lw=2)

collection = collections.BrokenBarHCollection.span_where(

t, ymin=0, ymax=1, where=s1 > 0, facecolor='green', alpha=0.5)

ax.add_collection(collection)

collection = collections.BrokenBarHCollection.span_where(

t, ymin=-1, ymax=0, where=s1 < 0, facecolor='red', alpha=0.5)

ax.add_collection(collection)

plt.show()