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fix(resample_to_grid): use rescale=True for scipy.interpolate.griddata #2565

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Merged
wpbonelli merged 3 commits into from
Aug 5, 2025
Merged

fix(resample_to_grid): use rescale=True for scipy.interpolate.griddata #2565

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fix(resample_to_grid): use rescale=True for scipy.interpolate.griddata
wpbonelli Aug 4, 2025
fe7ecb9
ruff
wpbonelli Aug 4, 2025
6a91e9a
L533 only rescale if linear or nearest
Aug 5, 2025
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7 changes: 5 additions & 2 deletions flopy/utils/rasters.py
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Original file line number Diff line number Diff line change
Expand Up @@ -530,7 +530,8 @@ def resample_to_grid(
arr = arr.flatten()

# step 3: use griddata interpolation to snap to grid
data = griddata((rxc, ryc), arr, (xc, yc), method=method)
rescale = method in ("linear", "nearest")
data = griddata((rxc, ryc), arr, (xc, yc), method=method, rescale=rescale)

elif method in ("median", "mean", "min", "max", "mode"):
# these methods are slow and could use speed ups
Expand Down Expand Up @@ -578,7 +579,9 @@ def resample_to_grid(
ryc = ryc[idx]
arr = arr[idx]

extrapolate = griddata((rxc, ryc), arr, (xc, yc), method="nearest")
extrapolate = griddata(
(rxc, ryc), arr, (xc, yc), method="nearest", rescale=True
)
data = np.where(np.isnan(data), extrapolate, data)

# step 4: return grid to user in shape provided
Expand Down
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