Used With Routines:   AXIS, BAR3D,   CONTOUR,   CONTOURFS,   CONTOUR2,   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.

To draw an empty set of axes between some given values:

PLOT, [0, 10], [0, 20], /Nodata