Scatter Plot

ScatterPlotWidget

Higher level widget that is directly used by the end-user. Scatter plot with docked Control Widget, Datapoint Tracer, and Console.

class mesmerize.plotting.ScatterPlotWidget

Bases: QMainWindow, BasePlotWidget

live_datapoint_tracer

Instance of DatapointTracer

set_update_live(b: bool)

Must be implemented in subclass

set_input(*args, **kwds)

Set the input Transmission with data to plot

Parameters:

transmission – Input transmission

get_plot_opts(drop: bool = False) → dict

Get the plot options

Parameters:

drop – no drop opts are specified for this plot

set_plot_opts(*args, **kwds)

Must be implemented in subclass

update_plot()

Update the plot data and draw

set_current_datapoint(identifier: UUID)

Set the UUID of the current datapoint and update the Datapoint Tracer

property transmission: Transmission

The input transmission

Return type:

Transmission

save_plot_dialog(path, *args)

Plot save dialog

save_plot(path)

Save the plot as a Transmission in an HDF5 file. Plot parameters are stored as a JSON string within the HDF5 file. See Transmission.to_hdf5

Parameters:

path – Path to save the file to. For easy identification use “.ptrn” extension.

open_plot_dialog(filepath, dirpath, *args, **kwargs)

Open plot dialog

open_plot(ptrn_path: str, proj_path: str) → Optional[Tuple[str, str]]

Open a plot saved by the save_plot() method

Parameters:

• ptrn_path – Path to the HDF5 Transmission file. By convention file extension is “.ptrn”

• proj_path – Project path of the associated plot data.

Variant

Lower level widget that interfaces with pqytgraph.ScatterPlotItem and has some helper methods.

class mesmerize.plotting.variants.PgScatterPlot(graphics_view: GraphicsLayoutWidget, parent=None)

Bases: QObject

signal_spot_clicked

Emits the UUID of a spot when it is clicked

__init__(graphics_view: GraphicsLayoutWidget, parent=None)

Parameters:

graphics_view – This plot will instantiate within this GraphicsLayoutWidget

add_data(xs: ndarray, ys: ndarray, uuid_series: Series, color: Union[str, QColor, QBrush, List[Union[QBrush, QColor, str]]], size: int = 10, **kwargs)

Add data to the plot

Parameters:

• xs (np.ndarray) – array of x values, indices must correspond to the “ys” array

• ys (np.ndarray) – array of y values, indices must correspond to the “xs” array

• uuid_series (pd.Series) – series of UUID values. Each SpotItem on the plot is tagged with these UUIDs, therefore the indices must correspond to the “xs” and “ys” arrays.

• color (Union[str, QtGui.QColor, QtGui.QBrush, List[Union[QtGui.QBrush, QtGui.QColor, str]]]) – Either a single color or list of colors that pqytgraph.fn.mkBrush() can accept

• size (int) – spot size

• kwargs – any additional kwargs that are passed to ScatterPlotItem.addPoints()

_clicked(plot, points)

Called when the plot is clicked

set_legend(colors: dict, shapes: Optional[dict] = None)

Set the legend.

Parameters:

• colors (Dict[str, Union[QtGui.QColor, QtGui.QBrush, str]]) – dict mapping of labels onto their corresponding colors {‘label’: QtGui.QColor}

• shapes (Dict[str, str]) – dict mapping of labels onto their corresponding shapes {‘label’: <shape as a str>}

clear_legend()

Clear the legend

clear()

Clear the plot