Curve.FindLocalInflection

Public Class

Local minimization for point on a curve with tangent perpendicular to N.

Namespace: Rhino.Geometry

Assembly: RhinoCommon (in RhinoCommon.dll)

**Since:**8.0

Syntax

public bool FindLocalInflection(
  Vector3d N,
  Interval subDomain,
  double seed,
  out double curveParameter,
  out double angleError
)

Parameters

N

Type: Rhino.Geometry.Vector3d
This vector and the curve tangent define a plane. In this plane, there is a vector V perpendicular to the tangent.

subDomain

Type: Rhino.Geometry.Interval
Subdomain of of curve to evaluate. This must not be empty.

seed

Type:System.Double
A seed parameter, which must be included in the subdomain.

curveParameter

Type:System.Double.
The parameter on the curve if successful, RhinoMath.UnsetValue if unsuccessful.

angleError

Type:System.Double.
The measure, in radians, of the angle between N and V. The angle will be zero when the result is an inflection.

Return Value

Type:Boolean
true if the minimization succeeds, regardless of angle_error, false if unsuccessful.

Remarks

The algorithm minimizes the square of the dot product of N with the curve tangent. It is possible that the result will not be close to zero.