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Merged
Jammy2211 merged 1 commit into from
Jun 16, 2025
Merged

feature/jax_point_source #238

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26 changes: 12 additions & 14 deletions autogalaxy/operate/deflections.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,10 +3,8 @@
import jax.numpy as jnp
from functools import wraps, partial
import logging
import numpy as np
from typing import List, Tuple, Union

from autoconf import conf

import autoarray as aa

Expand Down Expand Up @@ -279,21 +277,21 @@ def hessian_from(self, grid, buffer: float = 0.01, deflections_func=None) -> Tup
if deflections_func is None:
deflections_func = self.deflections_yx_2d_from

grid_shift_y_up = aa.Grid2DIrregular(values=np.zeros(grid.shape))
grid_shift_y_up[:, 0] = grid[:, 0] + buffer
grid_shift_y_up[:, 1] = grid[:, 1]
grid_shift_y_up = aa.Grid2DIrregular(
values=jnp.stack([grid[:, 0] + buffer, grid[:, 1]], axis=1)
)

grid_shift_y_down = aa.Grid2DIrregular(values=np.zeros(grid.shape))
grid_shift_y_down[:, 0] = grid[:, 0] - buffer
grid_shift_y_down[:, 1] = grid[:, 1]
grid_shift_y_down = aa.Grid2DIrregular(
values=jnp.stack([grid[:, 0] - buffer, grid[:, 1]], axis=1)
)

grid_shift_x_left = aa.Grid2DIrregular(values=np.zeros(grid.shape))
grid_shift_x_left[:, 0] = grid[:, 0]
grid_shift_x_left[:, 1] = grid[:, 1] - buffer
grid_shift_x_left = aa.Grid2DIrregular(
values=jnp.stack([grid[:, 0], grid[:, 1] - buffer], axis=1)
)

grid_shift_x_right = aa.Grid2DIrregular(values=np.zeros(grid.shape))
grid_shift_x_right[:, 0] = grid[:, 0]
grid_shift_x_right[:, 1] = grid[:, 1] + buffer
grid_shift_x_right = aa.Grid2DIrregular(
values=jnp.stack([grid[:, 0], grid[:, 1] + buffer], axis=1)
)

deflections_up = deflections_func(grid=grid_shift_y_up)
deflections_down = deflections_func(grid=grid_shift_y_down)
Expand Down
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