Searches for a derivative, tangent, or curvature discontinuity.

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

C#

public bool GetNextDiscontinuity(
	int direction,
	Continuity continuityType,
	double t0,
	double t1,
	out double t
)

VB

Public Function GetNextDiscontinuity ( 
	direction As Integer,
	continuityType As Continuity,
	t0 As Double,
	t1 As Double,
	<OutAttribute> ByRef t As Double
) As Boolean

direction

Type: System.Int32
If 0, then "u" parameter is checked. If 1, then the "v" parameter is checked.

continuityType

Type: Rhino.Geometry.Continuity
The desired continuity.

t0

Type: System.Double
Search begins at t0. If there is a discontinuity at t0, it will be ignored. This makes it possible to repeatedly call GetNextDiscontinuity and step through the discontinuities.

t1

Type: System.Double
(t0 != t1) If there is a discontinuity at t1 is will be ingored unless c is a locus discontinuity type and t1 is at the start or end of the curve.

t

Type: System.Double
if a discontinuity is found, then t reports the parameter at the discontinuity.

Type: Boolean
Parametric continuity tests c = (C0_continuous, ..., G2_continuous): TRUE if a parametric discontinuity was found strictly between t0 and t1. Note well that all curves are parametrically continuous at the ends of their domains. Locus continuity tests c = (C0_locus_continuous, ...,G2_locus_continuous): TRUE if a locus discontinuity was found strictly between t0 and t1 or at t1 is the at the end of a curve. Note well that all open curves (IsClosed()=false) are locus discontinuous at the ends of their domains. All closed curves (IsClosed()=true) are at least C0_locus_continuous at the ends of their domains.

Supported in: 6.0.16224.21491, 5D58w

Surface Class
Rhino.Geometry Namespace