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Fix error where zero sources are up over the horizon #13

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merged 1 commit into from
Apr 18, 2024
Merged

Fix error where zero sources are up over the horizon #13

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8 changes: 7 additions & 1 deletion fftvis/simulate.py
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Original file line number Diff line number Diff line change
Expand Up @@ -114,7 +114,7 @@ def simulate(
baselines: list[tuple] = None,
precision: int = 2,
polarized: bool = False,
eps: float = 1e-13,
eps: float = None,
beam_spline_opts: dict = None,
):
"""
Expand Down Expand Up @@ -179,6 +179,9 @@ def simulate(
real_dtype = np.float64
complex_dtype = np.complex128

if eps is None:
eps = default_accuracy_dict[precision]

# Get the redundant groups - TODO handle this better
if not baselines:
reds = utils.get_pos_reds(ants, include_autos=True)
Expand Down Expand Up @@ -229,6 +232,9 @@ def simulate(
# Number of above horizon points
nsim_sources = above_horizon.sum()

if nsim_sources == 0:
continue

# Form the visibility array
_vis = np.zeros((nfeeds, nfeeds, nbls, nfreqs), dtype=complex_dtype)

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