Arc2DObject 
Arc2D is a linebased geometry node that defines a linear circular arc with center (0,0) in XY plane, with angles measured starting at positive xaxis and sweeping towards positive yaxis.

ArcClose2DObject 
ArcClose2D is a polygonal geometry node that defines a linear circular arc, closed by PIE or CHORD line segments, with center (0,0) in XY plane, with angles measured starting at positive xaxis and sweeping towards positive yaxis.

Circle2DObject 
Circle2D is a geometry node that defines a linear XY circle with center (0,0) in XY plane.

Disk2DObject 
Disk2D is a geometry node that defines a filled (or partially filled) planar circle with center (0,0).

Polyline2DObject 
Polyline2D is a geometry node that defines a connected set of vertices in a contiguous set of line segments in XY plane.

Polypoint2DObject 
Polypoint2D is a geometry node that defines a set of 2D points in XY plane.

Rectangle2DObject 
Rectangle2D is a geometry node that defines a 2D rectangle in XY plane.

TriangleSet2DObject 
TriangleSet2D is a geometry node that defines a set of filled 2D triangles in XY plane.
