Called by the GLViewWidget to draw this item. It is the responsibility of the item to set up its own modelview matrix, but th

Some parameters of the optic have changed.

Return the bounding rectangle of this ROI in the coordinate system of its parent.

Get the size (in pixels) that this item might draw beyond the data. The size of scatter plot symbols or width of the line pl

Get the `x` and `y` size of each pixel in the view coordinate system. Returns ------- float, float The `

Create and return a :class:`PlotWidget <pyqtgraph.PlotWidget>` Accepts a *title* argument to set the title of the window. All other argum

Format nested dict/list/tuple structures into a more human-readable string This function is a bit better than pprint for displaying OrderedDicts.

Print to real stdout (for debugging)

Print an exception with its full traceback. Set `sys.excepthook = printException` to ensure that exceptions caught inside Qt signal handl

Print an error message followed by an indented stack trace

Process requests from parent. Usually it is not necessary to call this unless you would like to receive messages (such as ex

Process data through the flowchart, returning the output. Keyword arguments must be the names of input terminals. T