e2ecdcfe33
Former-commit-id:a02aeb236c[formerly9f19e3f712] [formerlya02aeb236c[formerly9f19e3f712] [formerly06a8b51d6d[formerly 64fa9254b946eae7e61bbc3f513b7c3696c4f54f]]] Former-commit-id:06a8b51d6dFormer-commit-id:8e80217e59[formerly3360eb6c5f] Former-commit-id:377dcd10b9
27 lines
643 B
Python
Executable file
27 lines
643 B
Python
Executable file
"""
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Show how to modify the coordinate formatter to report the image "z"
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value of the nearest pixel given x and y
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"""
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import numpy as np
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import matplotlib.pyplot as plt
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import matplotlib.cm as cm
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X = 10*np.random.rand(5,3)
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fig = plt.figure()
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ax = fig.add_subplot(111)
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ax.imshow(X, cmap=cm.jet, interpolation='nearest')
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numrows, numcols = X.shape
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def format_coord(x, y):
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col = int(x+0.5)
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row = int(y+0.5)
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if col>=0 and col<numcols and row>=0 and row<numrows:
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z = X[row,col]
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return 'x=%1.4f, y=%1.4f, z=%1.4f'%(x, y, z)
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else:
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return 'x=%1.4f, y=%1.4f'%(x, y)
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ax.format_coord = format_coord
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plt.show()
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