Returns the unit vector defining a line through p and tangent to cir. Cir must handle the Arc protocol (as by ArcMixin). OnRight? is used to determine which tangent is desired. If True , it selects the one on the right side of the line from p to the center of cir.
pointTanArcV ( p As Point, _
cir As Part, _
onRight? As Boolean ) As Vector
| Argument | Type | Description |
|---|---|---|
| p | Point | The point outside the circle. |
| cir | Part | The circular arc to which the tangent is desired. |
| onRight? | Boolean | Determines which tangent point to choose. |