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.Dd December 21, 2022
.Dt SG_POINT 3
.Os Agar 1.7
.Sh NAME
.Nm SG_Point
.Nd Agar-SG point node
.Sh SYNOPSIS
.Bd -literal
#include <agar/core.h>
#include <agar/sg.h>
.Ed
.Sh DESCRIPTION
The
.Nm
node represents a reference point in space.
This is useful in feature-based modeling, or as construction geometry.
.Sh INHERITANCE HIERARCHY
.Xr AG_Object 3 ->
.Xr SG_Node 3 ->
.Xr SG_Geom 3 ->
.Nm .
.Sh INITIALIZATION
.nr nS 1
.Ft "SG_Point *"
.Fn SG_PointNew "SG_Node *parent" "const char *name" "const M_Vector3 *p"
.Pp
.Ft "void"
.Fn SG_PointSize "SG_Node *parent" "M_Real size"
.Pp
.Ft "void"
.Fn SG_PointColor "SG_Node *parent" "M_Color color"
.Pp
.nr nS 0
The
.Fn SG_PointNew
function creates a new point at the origin of the parent node.
If the
.Fa p
argument is non-NULL, the point is translated to the specified coordinates.
.Pp
The functions
.Fn SG_PointSize
and
.Fn SG_PointColor
specify a point size in pixels, and a color, respectively, which will be used
in graphically rendering the point node.
.Sh STRUCTURE DATA
For the
.Nm
object:
.Bl -tag -width "M_Color color "
.It Ft float size
Size factor used in graphically rendering the point.
.It Ft M_Color color
Color used in graphically rendering the point.
.El
.Sh SEE ALSO
.Xr M_Color 3 ,
.Xr M_Real 3 ,
.Xr M_Vector 3 ,
.Xr SG 3 ,
.Xr SG_Geom 3 ,
.Xr SG_Intro 3 ,
.Xr SG_Node 3 ,
.Xr SG_Plane 3
.Sh HISTORY
The
.Nm
node class first appeared in Agar 1.6.0.