FilesExpand file tree

patch-2

/

pythonic_matplotlib.py

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

79 lines (59 loc) · 2.39 KB

patch-2

/

pythonic_matplotlib.py

Copy path

Top

File metadata and controls

• Code
• Blame

79 lines (59 loc) · 2.39 KB

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

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

"""

===================

Pythonic Matplotlib

===================

Some people prefer to write more pythonic, object-oriented code

rather than use the pyplot interface to matplotlib. This example shows

you how.

Unless you are an application developer, I recommend using part of the

pyplot interface, particularly the figure, close, subplot, axes, and

show commands. These hide a lot of complexity from you that you don't

need to see in normal figure creation, like instantiating DPI

instances, managing the bounding boxes of the figure elements,

creating and realizing GUI windows and embedding figures in them.

If you are an application developer and want to embed matplotlib in

your application, follow the lead of examples/embedding_in_wx.py,

examples/embedding_in_gtk.py or examples/embedding_in_tk.py. In this

case you will want to control the creation of all your figures,

embedding them in application windows, etc.

If you are a web application developer, you may want to use the

example in webapp_demo.py, which shows how to use the backend agg

figure canvas directly, with none of the globals (current figure,

current axes) that are present in the pyplot interface. Note that

there is no reason why the pyplot interface won't work for web

application developers, however.

If you see an example in the examples dir written in pyplot interface,

and you want to emulate that using the true python method calls, there

is an easy mapping. Many of those examples use 'set' to control

figure properties. Here's how to map those commands onto instance

methods

The syntax of set is::

plt.setp(object or sequence, somestring, attribute)

if called with an object, set calls::

object.set_somestring(attribute)

if called with a sequence, set does::

for object in sequence:

object.set_somestring(attribute)

So for your example, if a is your axes object, you can do::

a.set_xticklabels([])

a.set_yticklabels([])

a.set_xticks([])

a.set_yticks([])

"""

import matplotlib.pyplot as plt

import numpy as np

t = np.arange(0.0, 1.0, 0.01)

fig, (ax1, ax2) = plt.subplots(2)

ax1.plot(t, np.sin(2*np.pi * t))

ax1.grid(True)

ax1.set_ylim((-2, 2))

ax1.set_ylabel('1 Hz')

ax1.set_title('A sine wave or two')

ax1.xaxis.set_tick_params(labelcolor='r')

ax2.plot(t, np.sin(2 * 2*np.pi * t))

ax2.grid(True)

ax2.set_ylim((-2, 2))

l = ax2.set_xlabel('Hi mom')

l.set_color('g')

l.set_fontsize('large')

plt.show()