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.Dd December 21, 2022
.Dt VG_CIRCLE 3
.Os Agar 1.7
.Sh NAME
.Nm VG_Circle
.Nd agar-vg circle entity
.Sh SYNOPSIS
.Bd -literal
#include <agar/core.h>
#include <agar/gui.h>
#include <agar/vg.h>
.Ed
.Sh DESCRIPTION
.\" IMAGE(/widgets/VG_Circle.png, "A VG_Circle")
.Nm
is a
.Xr VG 3
node class which describes a circle in terms of a centerpoint and a radius
value.
.Sh INTERFACE
.nr nS 1
.Ft "VG_Circle *"
.Fn VG_CircleNew "VG_Node *parent" "VG_Point *centerPoint" "float r"
.Pp
.Ft "void"
.Fn VG_CircleCenter "VG_Circle *vc" "VG_Point *centerPoint"
.Pp
.Ft "void"
.Fn VG_CircleRadius "VG_Arc *vc" "float r"
.Pp
.nr nS 0
The
.Fn VG_CircleNew
function creates a new circle entity attached to
.Fa parent .
.Fa centerPoint
is a
.Xr VG_Point 3
defining the center and
.Fa r
is the radius.
.Pp
The
.Fn VG_CircleCenter
routine changes the centerpoint of an existing
.Nm .
.Fn VG_CircleRadius
changes the radius.
.Sh SEE ALSO
.Xr VG 3 ,
.Xr VG_Arc 3 ,
.Xr VG_Point 3
.Sh HISTORY
The
.Nm
class first appeared in Agar 1.3.3.