Module org.jhotdraw8.geom

Package org.jhotdraw8.geom

Class CubicCurveToQuadCurves

java.lang.Object

org.jhotdraw8.geom.CubicCurveToQuadCurves

public class CubicCurveToQuadCurves
extends Object

Approximates a cubic Bézier curve with quadratic Bézier curves.

References:

Proc. ACM Comput. Graph. Interact. Tech., Vol. 3, No. 2, Article 16. Publication date: August 2020. Quadratic Approximation of Cubic Curves. NGHIA TRUONG, University of Utah, CEM YUKSEL, University of Utah, LARRY SEILER, Facebook Reality Labs. Copyright 2020 held by the owner/author(s). Publication rights licensed to ACM.

ttnghia.github.io

Constructor Summary

Constructors

Constructor	Description
CubicCurveToQuadCurves()

Method Summary

Modifier and Type	Method	Description
int	approximateCubicCurve(double[] p, int offsetP, double[] q, int offsetQ, double tolerance)	Approximates a cubic curve with up to 8 quadratic curves.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

CubicCurveToQuadCurves

public CubicCurveToQuadCurves()

Method Details

approximateCubicCurve

public int approximateCubicCurve(double[] p,
 int offsetP,
 double[] q,
 int offsetQ,
 double tolerance)

Approximates a cubic curve with up to 8 quadratic curves.

Parameters:

p - the points of the cubic curve

offsetP - the index of the first point in p

q - the points of the quadratic curves (on output, must space for up to 8*6=48 coords).

offsetQ - the index of the first point in q

Returns:

the number of quadratic curves