Method GetEdgeTangent
GetEdgeTangent(ElementItemId, double)
Gets the tangent to the curve attached to an edge at a specified parametric value.
Declaration
[OperationContract]
[AvailableSinceVersion(7, 7, 0, 0)]
Direction3D GetEdgeTangent(ElementItemId inEdgeId, double inT)Parameters
| Type | Name | Description |
|---|---|---|
| ElementItemId | inEdgeId | Identifier of the edge to analyze. |
| double | inT | Parameter within edge curve parametric range. |
Returns
| Type | Description |
|---|---|
| Direction3D | Tangent to the edge curve at the specified parametric value. |
Remarks
If the edge is reversed, the orientation of the tangent is the opposite to the parametric first derivative.
This method is available since v7.7.