Nodata Keyword
Used With Routines: AXIS, BAR3D, CONTOUR, CONTOURFS, CONTOUR, OPLOT, PLOT, SHADE_SURF, SHADE_SURF_IRR, SURFACE
Corresponding System Variable: None.
If this keyword is set, only the axes, titles, and annotation are drawn. No data points are plotted.
Example
To draw an empty set of axes between some given values:
PLOT, [0, 10], [0, 20], /Nodata