CurveExtend Method (Double, Double) |

Where possible, analytically extends curve to include the given domain.
This will not work on closed curves. The original curve will be identical to the
restriction of the resulting curve to the original curve domain.

**Namespace:** Rhino.Geometry**Assembly:** RhinoCommon (in RhinoCommon.dll) Version: 5.1.50000.0 (5.0.20693.0)

Syntax public Curve Extend(
double t0,
double t1
)

Public Function Extend (
t0 As Double,
t1 As Double
) As Curve

#### Parameters

- t0
- Type: SystemDouble

Start of extension domain, if the start is not inside the
Domain of this curve, an attempt will be made to extend the curve. - t1
- Type: SystemDouble

End of extension domain, if the end is not inside the
Domain of this curve, an attempt will be made to extend the curve.

#### Return Value

Type:

CurveExtended curve on success, null on failure.

See Also