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feat(scalar_fields_XZ): Accelerate rotation calculation using Numba #4

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feat(scalar_fields_XZ): Accelerate rotation calculation using Numba #4

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14 changes: 9 additions & 5 deletions diffractio/scalar_fields_XZ.py
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Original file line number Diff line number Diff line change
Expand Up @@ -94,11 +94,19 @@
kernelRS, kernelRSinverse)
from .scalar_masks_X import Scalar_mask_X
from .scalar_sources_X import Scalar_source_X
from numba import njit

copyreg.pickle(types.MethodType, _pickle_method, _unpickle_method)

percentage_intensity_config = CONF_DRAWING['percentage_intensity']

@njit(parallel=True, nogil=True)
def _rotate_numba(X, Z, angle, x0, z0):
"""Numba-accelerated rotation computation"""
Xrot = x0 + (X - x0) * np.cos(angle) + (Z - z0) * np.sin(angle)
Zrot = z0 - (X - x0) * np.sin(angle) + (Z - z0) * np.cos(angle)
return Xrot, Zrot

class Scalar_field_XZ():
"""Class for working with XZ scalar fields.

Expand Down Expand Up @@ -300,11 +308,7 @@ def __rotate__(self, angle: float, position=None):
# Definicion de la rotation
x0, z0 = position

Xrot = x0 + (self.X - x0) * np.cos(angle) + (self.Z -
z0) * np.sin(angle)
Zrot = z0 - (self.X - x0) * np.sin(angle) + (self.Z -
z0) * np.cos(angle)
return Xrot, Zrot
return _rotate_numba(self.X, self.Z, angle, x0, z0)


def size(self, verbose: bool = False):
Expand Down