silx.gui.plot.actions.histogram

silx.gui.plot.actions.histogram provides actions relative to histograms for PlotWidget.

The following QAction are available:

• PixelIntensitiesHistoAction

class HistogramWidget(*args, **kwargs)

Widget displaying a histogram and some statistic indicators

getPlotWidget()

Returns PlotWidget use to display the histogram

resetZoom()

Reset PlotWidget zoom

reset()

Clear displayed information

getItem()

Returns item used to display histogram and statistics.

Return type:

Optional[Item]

setItem(item)

Set item from which to display histogram and statistics.

Parameters:

item (Optional[Item])

setHistogram(histogram, edges)

Set displayed histogram

Parameters:

• histogram – Bin values (N)

• edges – Bin edges (N+1)

getHistogram(copy=True)

Returns currently displayed histogram.

Parameters:

copy (bool) – True to get a copy, False to get internal representation (Do not modify!)

Returns:

(histogram, edges) or None

setStatistics(min_=None, max_=None, mean=None, std=None, sum_=None)

Set displayed statistic indicators.

Parameters:

• min_ (Optional[float])

• max_ (Optional[float])

• mean (Optional[float])

• std (Optional[float])

• sum_ (Optional[float])

class PixelIntensitiesHistoAction(plot, parent=None)

QAction to plot the pixels intensities diagram

Parameters:

• plot – PlotWidget instance on which to operate

• parent – See QAction

getHistogramWidget()

Returns the widget displaying the histogram

getHistogram()

Return the last computed histogram

Return type:

Optional[ndarray]

Returns:

the histogram displayed in the HistogramWidget