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adding shared axes to examples with multiple plots

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martin
2015-10-12 15:58:57 +02:00
parent a2d74e5260
commit 681be3fc58
14 changed files with 89 additions and 41 deletions
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doc/examples/plot_line_hough_transform.py
+9 -7
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@@ -77,11 +77,13 @@ image[idx, idx] = 255
h, theta, d = hough_line(image)
fig, ax = plt.subplots(1, 3, figsize=(8, 4))
fig, ax = plt.subplots(1, 3, figsize=(8, 4), sharex=True, sharey=True)
fig.delaxes(ax[1])
ax[1] = fig.add_subplot(1, 3, 2)
ax[0].imshow(image, cmap=plt.cm.gray)
ax[0].set_title('Input image')
ax[0].axis('image')
ax[0].set_axis_off()
ax[1].imshow(np.log(1 + h),
extent=[np.rad2deg(theta[-1]), np.rad2deg(theta[0]),
@@ -100,7 +102,7 @@ for _, angle, dist in zip(*hough_line_peaks(h, theta, d)):
ax[2].plot((0, cols), (y0, y1), '-r')
ax[2].axis((0, cols, rows, 0))
ax[2].set_title('Detected lines')
ax[2].axis('image')
ax[2].set_axis_off()
# Line finding, using the Probabilistic Hough Transform
@@ -109,15 +111,15 @@ edges = canny(image, 2, 1, 25)
lines = probabilistic_hough_line(edges, threshold=10, line_length=5,
line_gap=3)
fig2, ax = plt.subplots(1, 3, figsize=(8, 3))
fig2, ax = plt.subplots(1, 3, figsize=(8, 3), sharex=True, sharey=True)
ax[0].imshow(image, cmap=plt.cm.gray)
ax[0].set_title('Input image')
ax[0].axis('image')
ax[0].set_axis_off()
ax[1].imshow(edges, cmap=plt.cm.gray)
ax[1].set_title('Canny edges')
ax[1].axis('image')
ax[1].set_axis_off()
ax[2].imshow(edges * 0)
@@ -126,5 +128,5 @@ for line in lines:
ax[2].plot((p0[0], p1[0]), (p0[1], p1[1]))
ax[2].set_title('Probabilistic Hough')
ax[2].axis('image')
ax[2].set_axis_off()
plt.show()