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Update band interpolation #56

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Update band interpolation #56

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1d716e5
Use `imshow` instead of `pcolormesh`
kavanase Jan 14, 2025
afa9e17
Fix small typo
kavanase Jan 14, 2025
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2 changes: 1 addition & 1 deletion docs/examples/example_si222.md
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Original file line number Diff line number Diff line change
Expand Up @@ -171,7 +171,7 @@ output:
:alt: Spectral function
:width: 400px

Spectral function of the unfolded bands with out additional kpoints due to reduced symmetry.
Spectral function of the unfolded bands without additional kpoints due to reduced symmetry.
```

Comparing this plot with the one above, we see that we get spurious band breaking (e.g. along $\Gamma - L$)
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11 changes: 9 additions & 2 deletions easyunfold/plotting.py
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Expand Up @@ -234,7 +234,7 @@
axes = [ax] if not isinstance(ax, list) else ax
fig = axes[0].figure

# Shift the kdist so the pcolormesh draw the pixel centred on the original point
# Shift the kdist so the plot draws the pixel centred on the original point
X, Y = np.meshgrid(kdist, engs - eref)

# Calculate the min and max values within the field of view, scaled by the factor
Expand All @@ -250,7 +250,14 @@
if contour_plot:
ax_.contourf(X, Y, sf[ispin], cmap=cmap, vmax=vmax, vmin=vmin, alpha=alpha)
else:
ax_.pcolormesh(X, Y, sf[ispin], cmap=cmap, shading='auto', vmax=vmax, vmin=vmin, alpha=alpha)
ax_.imshow(sf[ispin],

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cmap=cmap,
aspect='auto',
extent=(X.min(), X.max(), Y.min(), Y.max()),
vmin=vmin,
vmax=vmax,
alpha=alpha,
origin='lower')

ax_.set_xlim(xmin, xmax)
ax_.set_ylim(*ylim)
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