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BrepClosestPoint Method (Point3d, Point3d, ComponentIndex, Double, Double, Double, Vector3d)
Finds a point on a brep that is closest to testPoint.

Namespace: Rhino.Geometry
Assembly: RhinoCommon (in RhinoCommon.dll) Version: 5.1.50000.0 (5.0.20693.0)
Syntax
public bool ClosestPoint(
	Point3d testPoint,
	out Point3d closestPoint,
	out ComponentIndex ci,
	out double s,
	out double t,
	double maximumDistance,
	out Vector3d normal
)

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

Type: Boolean
true if the operation succeeded; otherwise, false.
See Also