.TH poly  3 "R1c" "Silicon Graphics"
.SH NAME
.I poly
- outline a polygon
.SH SYNOPSIS
.nf
.TP \w'FORTRAN\ \ \ 'u
C
.B "poly(n, parray) "
.B "long n; "
.B "Coord parray[][3];"
.IP 
.B "polyi(n, parray) "
.B "long n; "
.B "Icoord parray[][3];"
.IP 
.B "poly2(n, parray) "
.B "long n; "
.B "Coord parray[][2];"
.IP 
.B "poly2i(n, parray) "
.B "long n; "
.B "Icoord parray[][2];"
.IP 
.TP \w'FORTRAN\ \ \ 'u
FORTRAN
.B "subroutine poly(n, parray)"
.B "integer n"
.B "real parray(3,n)"
.IP 
.B "subroutine polyi(n, parray)"
.B "integer n"
.B "integer parray(3,n)"
.IP 
.B "subroutine poly2(n, parray)"
.B "integer n"
.B "real parray(2,n)"
.IP 
.B "subroutine poly2i(n, parray)"
.B "integer n"
.B "integer parray(2,n)"
.IP 
.TP \w'FORTRAN\ \ \ 'u
Pascal
.B "procedure poly(n: integer; var parray: Coord3array);"
.IP 
.B "procedure polyi(n: integer; var parray: Icoord3array);"
.IP 
.B "procedure poly2(n: integer; var parray: Coord2array);"
.IP 
.B "procedure poly2i(n: integer; var parray: Icoord2array);"
.sp
.SH DESCRIPTION
\f2Poly\f1 takes two arguments:  an 
array of points and the number of points
in that array.
A polygon is represented
as an array of points.  The first and last points are automatically connected
to close the polygon.  The points can be expressed as integers or real
numbers, in
2D or 3D space.
Two-dimensional polygons are drawn with \f3z\f1=0.
The polygon is outlined using the current linestyle, 
linewidth, color, and writemask.
.SH "SEE ALSO"
.I polf, rect, rectf