BrepClosestPoint Method (Point3d, Point3d, ComponentIndex, Double, Double, Double, Vector3d)

public bool ClosestPoint(
	Point3d testPoint,
	out Point3d closestPoint,
	out ComponentIndex ci,
	out double s,
	out double t,
	double maximumDistance,
	out Vector3d normal
)

Public Function ClosestPoint ( 
	testPoint As Point3d,
	<OutAttribute> ByRef closestPoint As Point3d,
	<OutAttribute> ByRef ci As ComponentIndex,
	<OutAttribute> ByRef s As Double,
	<OutAttribute> ByRef t As Double,
	maximumDistance As Double,
	<OutAttribute> ByRef normal As Vector3d
) As Boolean

Parameters

testPoint

Type: Rhino.GeometryPoint3d
base point to project to surface.

closestPoint

Type: Rhino.GeometryPoint3d
location of the closest brep point.

ci

Type: Rhino.GeometryComponentIndex
Component index of the brep component that contains the closest point. Possible types are brep_face, brep_edge or brep_vertex.

s

Type: SystemDouble
If the ci type is brep_edge, then s is the parameter of the closest edge point.

t

Type: SystemDouble
If the ci type is brep_face, then (s,t) is the parameter of the closest edge point.

maximumDistance

Type: SystemDouble
If maximumDistance > 0, then only points whose distance is <= maximumDistance will be returned. Using a positive value of maximumDistance can substantially speed up the search.

normal

Type: Rhino.GeometryVector3d
The normal to the face if ci is a brep_face and the tangent to the edge if ci is brep_edge.

Return Value

Rhino for Mac

Rhino for Windows

Reference