Creates a blank plot.
Available in version 1.3.1 or later.
plot = Ngl.blank_plot(wks, res=None)
The identifier returned from calling Ngl.open_wks.res=None
An (optional) instance of the Resources class having PyNGL resources as attributes.
A PlotId representing the blank plot created.
This function creates a blank plot, that can be useful for adding things to it, or customizing it and overlaying it on another existing plot.
Plot options can be set via the res variable.