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Fixed correct_mesh_orientation for when spacing!=(1,1,1).

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Noah Trebesch
2015-11-05 19:01:15 -06:00
parent d187840f19
commit 851b1be627
1 changed files with 5 additions and 1 deletions
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skimage/measure/_marching_cubes.py
+5 -1
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@@ -228,10 +228,14 @@ def correct_mesh_orientation(volume, verts, faces, spacing=(1., 1., 1.),
import scipy.ndimage as ndi
# Calculate gradient of `volume`, then interpolate to vertices in `verts`
grad_x, grad_y, grad_z = np.gradient(volume, *spacing)
grad_x, grad_y, grad_z = np.gradient(volume)
# Fancy indexing to define two vector arrays from triangle vertices
actual_verts = verts[faces]
actual_verts[:, 0] /= spacing[0]
actual_verts[:, 1] /= spacing[1]
actual_verts[:, 2] /= spacing[2]
a = actual_verts[:, 0, :] - actual_verts[:, 1, :]
b = actual_verts[:, 0, :] - actual_verts[:, 2, :]