broken imshow

Michael,

In your commit 8585, you added an extra apply_translation command in
the make_image function (line 594 of image.py, note that there is
another one at line 599).

Currently, imshow command places image in wrong place (except when
interpolation is nearest ) and I think this is because of the extra
translation.

Tor reproduce the problem,

import numpy as np
import matplotlib.pyplot as plt

arr = np.arange(100).reshape((10, 10))
plt.imshow(arr, interpolation="bilinear", extent=(1,2,1,2))
plt.xlim(0,3)
plt.ylim(0,3)
plt.show()

The image are not at what it meant to be.

Removing one of the translation solves the problem. And I guess that
line is there by mistake?
Can you check this and commit the fix if possible.

Regards,

-JJ

Thanks for pointing this out. It is now fixed (and I added your example as a regression test).

Mike

···

On 08/01/2010 10:49 PM, Jae-Joon Lee wrote:

Michael,

In your commit 8585, you added an extra apply_translation command in
the make_image function (line 594 of image.py, note that there is
another one at line 599).

Currently, imshow command places image in wrong place (except when
interpolation is nearest ) and I think this is because of the extra
translation.

Tor reproduce the problem,

import numpy as np
import matplotlib.pyplot as plt

arr = np.arange(100).reshape((10, 10))
plt.imshow(arr, interpolation="bilinear", extent=(1,2,1,2))
plt.xlim(0,3)
plt.ylim(0,3)
plt.show()

The image are not at what it meant to be.

Removing one of the translation solves the problem. And I guess that
line is there by mistake?
Can you check this and commit the fix if possible.

Regards,

-JJ

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Michael Droettboom
Science Software Branch
Space Telescope Science Institute
Baltimore, Maryland, USA