| Name | Description |
| Copy | Creates a copy of this Arc2d object. The result is entirely independent and can be edited without affecting the original Arc2d object. |
| GetArcData | Get the data defining this arc. |
| PutArcData | Method that sets the data defining this arc. |
| Name | Description |
| Center | Specifies the center point for this arc. |
| EndPoint | Property that returns the end point of the arc. |
| Evaluator | Property that returns the Curve2dEvaluator for this arc. |
| Radius | Specifies the radius for this arc. |
| StartAngle | Specifies the starting angle for this arc. |
| StartPoint | Property that gets the start point of the arc. |
| SweepAngle | Specifies the sweep angle from the start angle for this arc. |