IBrepClosestPoint(Point3, Point3, ComponentIndex3, Double, Double, Double, Vector3) Method

bool ClosestPoint(
	Point3 testPoint,
	out Point3 closestPoint,
	out ComponentIndex3 ci,
	out double s,
	out double t,
	double maximumDistance,
	out Vector3 normal
)

Function ClosestPoint ( 
	testPoint As Point3,
	<OutAttribute> ByRef closestPoint As Point3,
	<OutAttribute> ByRef ci As ComponentIndex3,
	<OutAttribute> ByRef s As Double,
	<OutAttribute> ByRef t As Double,
	maximumDistance As Double,
	<OutAttribute> ByRef normal As Vector3
) As Boolean

bool ClosestPoint(
	Point3 testPoint, 
	[OutAttribute] Point3% closestPoint, 
	[OutAttribute] ComponentIndex3% ci, 
	[OutAttribute] double% s, 
	[OutAttribute] double% t, 
	double maximumDistance, 
	[OutAttribute] Vector3% normal
)

abstract ClosestPoint : 
        testPoint : Point3 * 
        closestPoint : Point3 byref * 
        ci : ComponentIndex3 byref * 
        s : float byref * 
        t : float byref * 
        maximumDistance : float * 
        normal : Vector3 byref -> bool 

Parameters

testPoint  Point3

base point to project to surface.

closestPoint  Point3

location of the closest brep point.

ci  ComponentIndex3

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

s  Double

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

t  Double

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

maximumDistance  Double

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  Vector3

The normal to the face if ci is a brep_face and the tangent to the edge if ci is brep_edge.

Return Value

Reference