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Fix plot_perturbation to ensure nbl is not plotted #2797

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Fix plot_perturbation to ensure nbl is not plotted #2797

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b84d993
Update plotting.py
cako Nov 29, 2025
1e738f3
Merge branch 'main' into patch-1
cako Dec 27, 2025
b2d1d4f
fixes https://github.com/devitocodes/devito/pull/2797#discussion_r257…
cako Dec 31, 2025
24f5fd4
Change assertion to raise ValueError for nbl mismatch
cako Jan 12, 2026
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4 changes: 3 additions & 1 deletion examples/seismic/plotting.py
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,9 @@ def plot_perturbation(model, model1, colorbar=True):
domain_size = 1.e-3 * np.array(model.domain_size)
extent = [model.origin[0], model.origin[0] + domain_size[0],
model.origin[1] + domain_size[1], model.origin[1]]
dv = np.transpose(model.vp.data) - np.transpose(model1.vp.data)
assert model.nbl == model1.nbl, ValueError("model and model1 have different values for nbl")
slices = tuple(slice(model.nbl, -model.nbl) for _ in range(2))
dv = np.transpose(model.vp.data[slices]) - np.transpose(model1.vp.data[slices])

plot = plt.imshow(dv, animated=True, cmap=cm.jet,
vmin=min(dv.reshape(-1)), vmax=max(dv.reshape(-1)),
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