184 lines
6.8 KiB
Python
Executable File
184 lines
6.8 KiB
Python
Executable File
# Tool to align the solenoid on the gun.
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# S. Bettoni, A. Gobbo, D. Voulot
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# 06/06/2016
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#Code ok with the GUI
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# Procedure:
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# switch off all the magnets between the gun solenoid and the screen or BPM used for the measurement
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# change the current of the gun soleoid
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# look at the centroid position (BPM or screen) downstream of the gun.
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import datetime
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is_panel = get_exec_pars().source != CommandSource.ui #Must be checked before callin "run"
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camera_name = "SINEG01-DSCR190"
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use_good_region=False
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do_elog = True
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if not is_panel:
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source = "direct" # "camtool", "bpm" or "direct"
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I1 = 100.0
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I2 = 105.0
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dI = 1.0
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settling_time = 0.1
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plot_image = False
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number_images = 5
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use_background = True
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multiple_background = False
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number_backgrounds = 5
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plots = get_plots(title = "Centroid excursion")
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if len(plots)==0:
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centroid_plot = plot(None, title = "Centroid excursion")[0]
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centroid_plot.clear()
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else:
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centroid_plot = plots[0]
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centroid_plot_index = 1 if ((len(centroid_plot.getAllSeries()) == 0) or (not globals().has_key("centroid_plot_index"))) else (centroid_plot_index + 1)
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print "Plot index: ", centroid_plot_index
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centroid_plot.setLegendVisible(True)
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centroid_plot.setStyle(centroid_plot.Style.ErrorXY)
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centroid_plot.getAxis(centroid_plot.AxisId.Y).setLabel("")
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centroid_plot.getAxis(centroid_plot.AxisId.X).setLabel("Centroid Excursion")
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scan_series = LinePlotErrorSeries(str(centroid_plot_index))
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centroid_plot.addSeries(scan_series)
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scan_series.setLinesVisible(False)
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scan_series.setPointSize(4)
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#Testing
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"""
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camera_name = "SLG-LCAM-C041"
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def laser_on():
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print "Laser On"
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def laser_off():
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print "Laser Off"
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def switch_off_magnets(magnets = None):
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pass
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add_device(DummyPositioner("gun_solenoid"), True)
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do_elog = False
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"""
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laser_was_on = is_laser_on()
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original_gun_solenoid = gun_solenoid.read()
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multiple_background = multiple_background and use_background
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print "Parameters: ", I1, I2, dI, settling_time, plot_image, number_images, use_background, multiple_background, number_backgrounds
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if source == "camtool":
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check_camtool()
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if use_background:
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laser_off()
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if not multiple_background:
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camtool.stop()
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camtool.grabBackground(camera_name, number_backgrounds)
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camtool.start(camera_name, 0, use_background, None, 0.0, None)
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else:
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if source == "bpm":
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run("Devices/BpmStats")
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add_device(BpmStats("image_stats", camera_name), True)
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multiple_background = False
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use_background = False
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else:
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run("Devices/ImageStats")
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add_device(ImageStats("image_stats", camera_name), True)
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add_device(image_stats.source, True)
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image_stats.enableBackground(use_background)
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if use_background:
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laser_off()
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if not multiple_background:
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image_stats.grabBackground(number_backgrounds)
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image_stats.setNumberOfImages(max(number_images,1))
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#switch_off_magnets()
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# add here gun phase setting see wiki page
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def before_sample(position, scan):
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if source == "camtool":
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if multiple_background:
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camtool.stop()
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camtool.grabBackground(camera_name, number_backgrounds)
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camtool.start(camera_name, 0, use_background, None, 0.0, None)
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laser_on()
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wait_camtool_message(number_images) #Wait filing the averager cache
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else:
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if multiple_background:
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image_stats.grabBackground(number_backgrounds)
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laser_on()
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image_stats.update()
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def after_sample(record, scan):
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x = record.values[0]
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y = record.values[1]
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stdev_x = record.values[2]
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stdev_y = record.values[3]
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if source == "camtool":
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#x, y, stdev_x, stdev_y = x.mean, y.mean, stdev_x.mean, stdev_y.mean
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x, y, stdev_x, stdev_y = x.mean, y.mean, x.stdev, y.stdev
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scan_series.appendData(x, y, abs(stdev_x), abs(stdev_y));
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if multiple_background:
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laser_off()
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r = None
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if not multiple_background:
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laser_on()
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try:
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if source != "camtool":
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sensors = [image_stats.com_x_mean, image_stats.com_y_mean, image_stats.com_x_stdev, image_stats.com_y_stdev]
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if plot_image and (source == "direct"):
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sensors.append(image_stats.source.getDataMatrix())
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else:
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sensors = get_camtool_stats(number_images, good_region=use_good_region)
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if plot_image:
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sensors.append(camtool.getDataMatrix())
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r = lscan(gun_solenoid, sensors , I1, I2, dI, settling_time, before_read = before_sample, after_read = after_sample)
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finally:
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if source == "camtool":
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camtool.stop()
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else:
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image_stats.stop()
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gun_solenoid.write(original_gun_solenoid)
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if laser_was_on:
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laser_on()
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else:
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laser_off()
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# take the result of the scan and generate convex hull plot
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(hx,hy)= convex_hull(x=to_array(r.getReadable(0), 'd'), y=to_array(r.getReadable(1),'d'))
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hx.append(hx[0]); hy.append(hy[0])
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hx = Convert.toDouble(hx)
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hy = Convert.toDouble(hy)
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hull = LinePlotErrorSeries(scan_series.name + "H", scan_series.color);
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centroid_plot.addSeries(hull);
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hull.setData(hx, hy);
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#Include metadata do hdf5
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path = get_exec_pars().scanPath
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set_attribute(path, "Settling time", settling_time)
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set_attribute(path, "Images", number_images)
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set_attribute(path, "Background enabled", use_background)
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set_attribute(path, "Background multiple", multiple_background)
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set_attribute(path, "Background images", number_backgrounds)
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set_attribute(path, "Plot index", centroid_plot_index)
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# save the entry in the logbook
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if do_elog:
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if get_option("Generated data file:\n" + get_exec_pars().path +"\n\n" + "Save to ELOG?", "YesNo") == "Yes":
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log_msg = "Data file: " + get_exec_pars().path
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log_msg = log_msg + "\nI1: " + str(I1)
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log_msg = log_msg + "\nI2: " + str(I2)
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log_msg = log_msg + "\ndI: " + str(dI)
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log_msg = log_msg + "\nSettling time: " + str(settling_time)
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log_msg = log_msg + "\nImages: " + str(number_images)
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log_msg = log_msg + "\nBackground: enabled=" + str(use_background) + " multiple=" + str(multiple_background) + " number=" + str(number_backgrounds)
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log_msg = log_msg + "\nPlot index: " + str(centroid_plot_index)
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log_msg = log_msg + "\n\n" + r.print()
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sleep(0.1) #Give some time to plot to be finished - it is not sync with acquisition
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file_name = os.path.abspath(get_context().setup.getContextPath() + "/centroid_excursion.png")
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centroid_plot.saveSnapshot(file_name , "png")
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elog("Gun solenoid alignment", log_msg, [file_name,])
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