6.2 GRAPHICAL OUTPUT

6.2.1 Ferret graphical output controls

Ferret command	Function
CONTOUR	produces a contour plot of a single field
FILL	alias for CONTOUR/FILL; produces color-filled contour plot
PLOT	produces a line or symbol plot of one or more arrays, or a scatter plot
SHADE	produces a shaded representation (rectangular cells)
VECTOR	produces a vector arrow plot
WIRE	produces a 3D wire frame plot
SET WINDOW	manipulates graphics windows
SET VIEWPORT	places graphics output into a sub-window (pane)

 

6.2.2 PPLUS graphical output commands

The plot commands, in the table below, can be customized using /SET_UP to delay display. The PLOT/SET_UP is followed by PPLUS commands which customize the settings for axes, labels, plot layout, and so on. Then the plot will ultimately be rendered using a PPLUS graphical output command (not the Ferret counterpart). A customized contour or filled-contour plot is rendered with PPL CONTOUR, a wire frame plot with PPL VIEW and so on. Please see the overview of this chapter and also the discussion in the Commands Reference section about PPLUS.

In the following sections, there is a "PPLUS commands" subsection detailing which PPLUS commands are used for each type of customization. See the examples in those sections, and cross-references to the PPLUS command syntax in the PPLUS manual (Appendix B).

Command	Function
CONTOUR	makes a contour plot
PLOT	plots x-y pairs for all lines of data
PLOTUV	makes a stick plot of vector data
SHADE	makes a shaded representation
VIEW	makes a wire frame plot
VECTOR	makes a plot of a vector field

 

The graphical output command PLOTUV can be used to make stick plots easily, as the following time series example shows.

yes? USE monthly_navy_winds
yes? PLOT/SET/X=180/Y=0 uwnd, vwnd
yes? PPL PLOTUV