| """ | |
| ============ | |
| Findobj Demo | |
| ============ | |
| Recursively find all objects that match some criteria | |
| """ | |
| import matplotlib.pyplot as plt | |
| import numpy as np | |
| import matplotlib.text as text | |
| a = np.arange(0, 3, .02) | |
| b = np.arange(0, 3, .02) | |
| c = np.exp(a) | |
| d = c[::-1] | |
| fig, ax = plt.subplots() | |
| plt.plot(a, c, 'k--', a, d, 'k:', a, c + d, 'k') | |
| plt.legend(('Model length', 'Data length', 'Total message length'), | |
| loc='upper center', shadow=True) | |
| plt.ylim([-1, 20]) | |
| plt.grid(False) | |
| plt.xlabel('Model complexity --->') | |
| plt.ylabel('Message length --->') | |
| plt.title('Minimum Message Length') | |
| # match on arbitrary function | |
| def myfunc(x): | |
| return hasattr(x, 'set_color') and not hasattr(x, 'set_facecolor') | |
| for o in fig.findobj(myfunc): | |
| o.set_color('blue') | |
| # match on class instances | |
| for o in fig.findobj(text.Text): | |
| o.set_fontstyle('italic') | |
| plt.show() | |