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xpoly

draw a polyline or a polygon

Syntax

xpoly(xv,yv [,dtype [,close]])

Arguments

xv,yv

matrices of the same size (points of the polyline).

dtype

string (drawing style). default value is "lines".

close

integer. If close=1, the polyline is closed; default value is 0.

Description

xpoly draws a single polyline described by the vectors of coordinates xv and yv. If xv and yv are matrices they are considered as vectors by concatenating their columns. dtype can be "lines" for using the current line style or "marks" for using the current mark to draw the polyline.

Examples

x = sin(2*%pi*(0:4)/5);
y = cos(2*%pi*(0:4)/5);

plot2d(0,0,-1,"010"," ",[-1,-1,1,1])  // draw an empty bounded axes
xpoly(x, y)
set(gce(), "foreground", color("red"), "closed", "on");
// With marks instead of lines
plot2d(0,0,1,rect=[0,0,12,10], frameflag=3)
t=[0:4]*2*%pi/5;
x=5+5*cos(t);
y=5+5*sin(t);
xpoly(x,y,"marks")
e=gce();
set(e,"mark_style",2);

See also

Report an issue
<< xfpolys polygon xpolys >>

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Last updated:
Mon Mar 27 11:52:45 GMT 2023