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deduplication pass

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matei jordache
2026-04-03 18:19:08 -07:00
parent f6b47e6d79
commit c8d766677b
42 changed files with 484 additions and 689 deletions
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20
backend/nodes/gradient.py
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@@ -31,30 +31,20 @@ class Gradient:
)
def process(self, field: DataField, component: str) -> tuple:
from scipy.ndimage import sobel
from backend.nodes.surface_common import physical_sobel_gradient, slope_unit
data = field.data
# Sobel kernel sums to ±8 over 2-pixel span; divide by 8·dx to get z/xy slope.
gx = sobel(data, axis=1) / (8.0 * field.dx)
gy = sobel(data, axis=0) / (8.0 * field.dy)
gx, gy = physical_sobel_gradient(field)
if component == "magnitude":
result = np.hypot(gx, gy)
z = str(field.si_unit_z or "").strip()
xy = str(field.si_unit_xy or "").strip()
out_unit_z = f"{z}/{xy}" if z and xy else (z or xy)
out_unit_z = slope_unit(field)
elif component == "x":
result = gx
z = str(field.si_unit_z or "").strip()
xy = str(field.si_unit_xy or "").strip()
out_unit_z = f"{z}/{xy}" if z and xy else (z or xy)
out_unit_z = slope_unit(field)
elif component == "y":
result = gy
z = str(field.si_unit_z or "").strip()
xy = str(field.si_unit_xy or "").strip()
out_unit_z = f"{z}/{xy}" if z and xy else (z or xy)
out_unit_z = slope_unit(field)
elif component == "azimuth":
# Azimuth: local slope direction, radians, matches Gwyddion's filter_azimuth
result = np.arctan2(gy, gx)
out_unit_z = "rad"
else: