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An elliptic arc is stored in the go_elarc structure. It has the GOT_ELARC type and one of the following subtypes:

The anchor set differs according to the subtype. Every elliptic arc has a curve hanger, and hangers for start point, end point, and center point. In addition to the subtype, the arc has an important property called “conic”. The available values of the property depend on the subtype. The values for all subtypes are:

The available values for arcs with at least one point on the perimeter:

The available values for arcs with three points on the perimeter: