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REG: fix Kalman example #124

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REG: fix Kalman example #124

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20 changes: 10 additions & 10 deletions testbeam_analysis/examples/kalman_filter.py
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Original file line number Diff line number Diff line change
Expand Up @@ -159,14 +159,14 @@ def straight_line(x, slope, offset):
for fit_dut_index, actual_fit_dut in enumerate(fit_duts):
track_estimates_chunk, chi2, x_errs, y_errs = track_analysis._fit_tracks_kalman_loop(
measurements, dut_fit_selection,
pixel_size, n_pixels, measurements_plot[0, :, -1],
pixel_size, n_pixels, measurements_plot[0, :, 2],
alignment=None,
beam_energy=2500.,
material_budget=[100. / 125390., 100. / 125390., 100. / 125390., 100. / 125390., 100. / 125390., 100. / 125390., 250. / 93700],
add_scattering_plane=False)
# interpolate hits with straight line
fit_x, _ = curve_fit(straight_line, measurements_plot[0, :, -1][fit_selection] / 1000., measurements[0, :, 0][fit_selection])
fit_y, _ = curve_fit(straight_line, measurements_plot[0, :, -1][fit_selection] / 1000., measurements[0, :, 1][fit_selection])
fit_x, _ = curve_fit(straight_line, measurements_plot[0, :, 2][fit_selection] / 1000., measurements[0, :, 0][fit_selection])
fit_y, _ = curve_fit(straight_line, measurements_plot[0, :, 2][fit_selection] / 1000., measurements[0, :, 1][fit_selection])

# store
track_estimates_chunk_all[fit_dut_index] = track_estimates_chunk
Expand All @@ -180,22 +180,22 @@ def straight_line(x, slope, offset):

# duts which are unused for fit
unused_duts = np.setdiff1d(range(measurements_plot.shape[1]), fit_selection)
x_fit = np.arange(measurements_plot[0, :, -1][0], measurements_plot[0, :, -1][-1], 1.) / 1000.
x_fit = np.arange(measurements_plot[0, :, 2][0], measurements_plot[0, :, 2][-1], 1.) / 1000.

# plot tracks in x-direction
plt.title('Tracks in x-direction for DUT_%d' % plot_dut)
plt.xlabel('z / mm')
plt.ylabel('x / $\mathrm{\mu}$m')
plt.grid()

plt.errorbar(measurements_plot[0, :, -1] / 1000.,
plt.errorbar(measurements_plot[0, :, 2] / 1000.,
track_estimates_chunk_all[np.where(fit_duts == plot_dut)[0], :, 0].reshape(measurements.shape[1],),
yerr=x_errs_all[np.where(fit_duts == plot_dut)[0]].reshape(measurements.shape[1],),
marker='o', linestyle='-', label='Smoothed estimates', zorder=2)
plt.plot(measurements[0, :, -1][unused_duts] / 1000.,
plt.plot(measurements_plot[0, :, 2][unused_duts] / 1000.,
track_estimates_chunk_all[np.where(fit_duts == plot_dut)[0], unused_duts, 0].reshape(len(unused_duts),),
'o', color='indianred', zorder=4)
plt.plot(measurements[0, :, -1] / 1000.,
plt.plot(measurements_plot[0, :, 2] / 1000.,
measurements_plot[0, :, 0],
marker='o', linestyle='-', label='Hit positions', color='green', zorder=3)
plt.plot(x_fit,
Expand All @@ -210,14 +210,14 @@ def straight_line(x, slope, offset):
plt.xlabel('z / mm')
plt.ylabel('y / $\mathrm{\mu}$m')
plt.grid()
plt.errorbar(measurements_plot[0, :, -1] / 1000.,
plt.errorbar(measurements_plot[0, :, 2] / 1000.,
track_estimates_chunk_all[np.where(fit_duts == plot_dut)[0], :, 1].reshape(measurements.shape[1],),
yerr=y_errs_all[np.where(fit_duts == plot_dut)[0]].reshape(measurements.shape[1],),
marker='o', linestyle='-', label='Smoothed estimates', zorder=2)
plt.plot(measurements_plot[0, :, -1][unused_duts] / 1000.,
plt.plot(measurements_plot[0, :, 2][unused_duts] / 1000.,
track_estimates_chunk_all[np.where(fit_duts == plot_dut)[0], unused_duts, 1].reshape(len(unused_duts), ),
'o', color='indianred', zorder=4)
plt.plot(measurements_plot[0, :, -1] / 1000.,
plt.plot(measurements_plot[0, :, 2] / 1000.,
measurements_plot[0, :, 1],
marker='o', linestyle='-', label='Hit positions', zorder=3)
plt.plot(x_fit,
Expand Down