Determines if point is inside Brep. This question only makes sense when the brep is a closed manifold. This function does not not check for closed or manifold, so result is not valid in those cases. Intersects a line through point with brep, finds the intersection point Q closest to point, and looks at face normal at Q. If the point Q is on an edge or the intersection is not transverse at Q, then another line is used.

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

C#

public bool IsPointInside(
	Point3d point,
	double tolerance,
	bool strictlyIn
)

VB

Public Function IsPointInside ( 
	point As Point3d,
	tolerance As Double,
	strictlyIn As Boolean
) As Boolean

point

Type: Rhino.Geometry.Point3d
3d point to test.

tolerance

Type: System.Double
3d distance tolerance used for intersection and determining strict inclusion. A good default is RhinoMath.SqrtEpsilon.

strictlyIn

Type: System.Boolean
if true, point is in if inside brep by at least tolerance. if false, point is in if truly in or within tolerance of boundary.

Type: Boolean
true if point is in, false if not.

Supported in: 6.0.16224.21491, 5D58w

Brep Class
Rhino.Geometry Namespace