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RhinoMathEvaluateNormal Method

Expert tool to evaluate surface unit normal.

Namespace:  Rhino
Assembly:  RhinoCommon (in RhinoCommon.dll)
Since: 7.0
Syntax
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public static bool EvaluateNormal(
	int limitDirection,
	Vector3d ds,
	Vector3d dt,
	Vector3d dss,
	Vector3d dst,
	Vector3d dtt,
	out Vector3d n
)

Parameters

limitDirection
Type: SystemInt32
Determines which direction is used to compute the limit, where: 0 = default, 1 = from quadrant I, 2 = from quadrant II, etc.
ds
Type: Rhino.GeometryVector3d
First partial derivative.
dt
Type: Rhino.GeometryVector3d
First partial derivative.
dss
Type: Rhino.GeometryVector3d
Second partial derivative.
dst
Type: Rhino.GeometryVector3d
Second partial derivative.
dtt
Type: Rhino.GeometryVector3d
Second partial derivative.
n
Type: Rhino.GeometryVector3d
Unit normal.

Return Value

Type: Boolean
True if successful, false otherwise.
See Also