Draws polymarkers on the viewport.
Ngl.polymarker_ndc(wks, x, y, res=None)
The identifier returned from calling Ngl.open_wks.x, y
Scalars, one-dimensional (masked) NumPy arrays, or Python lists containing the x, y NDC coordinates of the polymarkers.res=None
An (optional) instance of the Resources class having GraphicStyle resources as attributes.
This procedure draws polymarkers on the viewport of the requested workstation. x and y are 1-dimensional arrays defining the coordinates of the polymarkers in NDC space, and resources can optionally contain an unlimited number of GraphicStyle attributes that are resource names and their values.
The frame is not advanced when you call this procedure, so you need to call Ngl.frame yourself if you want to advance the frame.