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Gives fourier graphs created with FFT and underlying function attribute

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Grant Sanderson 2018-02-21 13:13:24 -08:00
parent c55287220c
commit 2c5c651e99
1 changed files with 7 additions and 0 deletions
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7
active_projects/fourier.py
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@ -59,6 +59,13 @@ def get_fourier_graph(
for x, y in zip(frequencies, fft_output[:n_samples//2]) for x, y in zip(frequencies, fft_output[:n_samples//2])
]) ])
graph.highlight(color) graph.highlight(color)
f_min, f_max = [
axes.x_axis.point_to_number(graph.points[i])
for i in 0, -1
]
graph.underlying_function = lambda f : axes.y_axis.point_to_number(
graph.point_from_proportion((f - f_min)/(f_max - f_min))
)
return graph return graph
def get_fourier_transform( def get_fourier_transform(