ARC() ARC() 6 "IRIT Version 8.0" NAME ARC CurveType ARC( VectorType StartPos, VectorType Center, VectorType EndPos ) Constructs an arc between the two end points StartPos and EndPos, centered at Center. Arc will always be less than 180 degrees, so the shortest circular path from StartPos to EndPos is selected. The case where StartPos, Center, and EndPos are collinear is illegal, since it attempts to define a 180 degrees arc. Arc is constructed as a single rational quadratic Bezier curve. Example: Arc1 = ARC( vector( 1.0, 0.0, 0.0 ), vector( 1.0, 1.0, 0.0 ), vector( 0.0, 1.0, 0.0 ) ); constructs a 90 degrees arc, tangent to both the X and Y axes at coordinate 1. See also ARC360 ARC()