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Merge pull request #926 from sivapvarma/plt-subplots-examples

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DOC: Use standard plt.subplots motif in examples
This commit is contained in:
Josh Warner
2014-03-27 00:40:16 -05:00
parent 55b0b0bcd5 5d82abd072
commit efcd8153b5
36 changed files with 465 additions and 541 deletions
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doc/examples/plot_phase_unwrap.py
+24 -34
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@@ -26,26 +26,20 @@ image_wrapped = np.angle(np.exp(1j * image))
# Perform phase unwrapping
image_unwrapped = unwrap_phase(image_wrapped)
plt.figure()
plt.subplot(221)
plt.title('Original')
plt.imshow(image, cmap='gray', vmin=0, vmax=4 * np.pi)
plt.colorbar()
fig, ax = plt.subplots(2, 2)
ax1, ax2, ax3, ax4 = ax.ravel()
plt.subplot(222)
plt.title('Wrapped phase')
plt.imshow(image_wrapped, cmap='gray', vmin=-np.pi, vmax=np.pi)
plt.colorbar()
fig.colorbar(ax1.imshow(image, cmap='gray', vmin=0, vmax=4 * np.pi), ax=ax1)
ax1.set_title('Original')
plt.subplot(223)
plt.title('After phase unwrapping')
plt.imshow(image_unwrapped, cmap='gray')
plt.colorbar()
fig.colorbar(ax2.imshow(image_wrapped, cmap='gray', vmin=-np.pi, vmax=np.pi), ax=ax2)
ax2.set_title('Wrapped phase')
plt.subplot(224)
plt.title('Unwrapped minus original')
plt.imshow(image_unwrapped - image, cmap='gray')
plt.colorbar()
fig.colorbar(ax3.imshow(image_unwrapped, cmap='gray'), ax=ax3)
ax3.set_title('After phase unwrapping')
fig.colorbar(ax4.imshow(image_unwrapped - image, cmap='gray'), ax=ax4)
ax4.set_title('Unwrapped minus original')
"""
.. image:: PLOT2RST.current_figure
@@ -70,26 +64,22 @@ image_unwrapped_no_wrap_around = unwrap_phase(image_wrapped,
image_unwrapped_wrap_around = unwrap_phase(image_wrapped,
wrap_around=(True, False))
plt.figure()
plt.subplot(221)
plt.title('Original')
plt.imshow(np.ma.array(image, mask=mask), cmap='jet')
plt.colorbar()
fig, ax = plt.subplots(2, 2)
ax1, ax2, ax3, ax4 = ax.ravel()
plt.subplot(222)
plt.title('Wrapped phase')
plt.imshow(image_wrapped, cmap='jet', vmin=-np.pi, vmax=np.pi)
plt.colorbar()
fig.colorbar(ax1.imshow(np.ma.array(image, mask=mask), cmap='jet'), ax=ax1)
ax1.set_title('Original')
plt.subplot(223)
plt.title('Unwrapped without wrap_around')
plt.imshow(image_unwrapped_no_wrap_around, cmap='jet')
plt.colorbar()
fig.colorbar(ax2.imshow(image_wrapped, cmap='jet', vmin=-np.pi, vmax=np.pi),
ax=ax2)
ax2.set_title('Wrapped phase')
plt.subplot(224)
plt.title('Unwrapped with wrap_around')
plt.imshow(image_unwrapped_wrap_around, cmap='jet')
plt.colorbar()
fig.colorbar(ax3.imshow(image_unwrapped_no_wrap_around, cmap='jet'),
ax=ax3)
ax3.set_title('Unwrapped without wrap_around')
fig.colorbar(ax4.imshow(image_unwrapped_wrap_around, cmap='jet'), ax=ax4)
ax4.set_title('Unwrapped with wrap_around')
plt.show()