Finds the parameter of the point on a curve that is closest to testPoint. If the maximumDistance parameter is > 0, then only points whose distance to the given point is <= maximumDistance will be returned. Using a positive value of maximumDistance can substantially speed up the search.

Namespace: Rhino.Geometry
Assembly: RhinoCommon (in RhinoCommon.dll) Version: Rhino 6.0

C#

public bool ClosestPoint(
	Point3d testPoint,
	out double t,
	double maximumDistance
)

VB

Public Function ClosestPoint ( 
	testPoint As Point3d,
	<OutAttribute> ByRef t As Double,
	maximumDistance As Double
) As Boolean

testPoint

Type: Rhino.Geometry.Point3d
Point to project.

t

Type: System.Double
parameter of local closest point returned here.

maximumDistance

Type: System.Double
The maximum allowed distance. Past this distance, the search is given up and false is returned.

Use 0 to turn off this parameter.

Type: Boolean
true on success, false on failure.

Supported in: 6.0.16224.21491, 5D58w

Curve Class
ClosestPoint Overload
Rhino.Geometry Namespace