Click or drag to resize
AB4D logo

BSplineCreateNURBSCurve(IListPoint3D, IListDouble, Double, Double, Int32) Method

Returns a Point3DCollection that defines the NURBS curve (Non-uniform rational B-spline) based on the controlPoints, weights and positionsPerSegment. The curve positions are created using an adaptive algorithm that adds more points where the curvature is higher. This takes longer to compute than when using fixed positionsPerSegment, but generates smoother curves with less positions.

Namespace: Ab3d.Utilities
Assembly: Ab3d.PowerToys (in Ab3d.PowerToys.dll) Version: 12.0.9484.2048
Syntax
C#
Copy
public static Point3DCollection CreateNURBSCurve(
	IList<Point3D> controlPoints,
	IList<double> weights,
	double angleThresholdDegrees,
	double minSegmentLength,
	int maxSubdivisionsCount = 10
)

Parameters

controlPoints  IListPoint3D
list of control points
weights  IListDouble
list of weights
angleThresholdDegrees  Double
Angle threshold in degrees. Lower values produce more accurate curve.
minSegmentLength  Double
Minimum segment length. Lower values produce more accurate curve.
maxSubdivisionsCount  Int32  (Optional)
maximum number of recursive subdivisions (10 by default that generates at max 1024 positions for the curve)

Return Value

Point3DCollection
Point3DCollection that defines the NURBS curve
See Also