xgrid: adds a grid on a 2D graphic; the calling parameter is the number of the color.
xtitle: adds title above the plot and axis names on a 2D graphic
titlepage: graphic title page in the middle of the plot
//Presentation x=-%pi:0.1:%pi; y1=sin(x);y2=cos(x);y3=x; X=[x;x;x]; Y=[y1;y2;y3]; plot2d(X',Y',style=[-1 -2 -3],leg="caption1@caption2@caption3",... rect=[-3,-3,3,2],nax=[2,10,2,5]); xtitle(["General Title";"(with xtitle command)"],... "x-axis title","y-axis title (with xtitle command)"); xgrid(); xclea(-2.7,1.5,1.5,1.5); titlepage("Titlepage"); xstring(0.6,.45,"(with titlepage command)"); xstring(0.05,.7,["xstring command after";"xclea command"],0,1); plot2d(X',Y',style=[-1 -2 -3],leg="caption1@caption2@caption3",... rect=[-3,-3,3,2],nax=[2,10,2,5]);
plotframe: graphic frame with scaling and grid
We have seen that it is possible to control the tics on the axes, choose the size of the rectangle for the plotand add a grid. This operation can be prepared once and then used for a sequence of different plots. One of the most useful aspect is to get graduations by choosing the number of graduations and getting rounded numbers.
rect=[-%pi,-1,%pi,1]; tics=[2,10,4,10]; plotframe(rect,tics,[%t,%t],... ['Plot with grids and automatic bounds','angle','velocity']);
graduate: a simple tool for computing pretty axis graduations before a plot.