Matvec Users’ Guide

Chapter 8
2D/3D Object-Oriented Plotting
The 2-dimension and 3-dimension plotting within Matvec interface are currently using external shell program:
gnuplot. This means gnuplot must be installed in the same machine where Matvec resides.
8.1 Creation
p = Plotter() creates an object of class Plotter.
8.2 Member Function
8.2.1 plot
p.plot("literal function such as sin(x)") plots function y=sin(x) on your X11 terminal.
p.plot(x,y,"") plots vectors x versus y on your X11 terminal. ”options” is optional, with
possible value: {title ’’}{with } where can be one of the following six styles:
lines, point, linespoints, impulses, dots, step, or errorbars.
8.2.2 plot3D
p.plot3D("literal function such as sin(x)+cos(y)") plots function z = sin(x) + cos(y) on your X11
terminal.
p.plot3D(x,y,z,"") plots vectors x, y versus z on your X11 terminal "" is optional,
with possible value: {title ’’}{with } where can be one of the following six
styles: lines, point, linespoints, impulses, dots, step, or errorbars.
8.2.3 replot
p.replot() replot the previous data or function after setting title, labels, etc.
8.2.4 set
p.set("key value") where key can be one of followings:
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