com.graphbuilder.org.apache.harmony.awt.gl

Class Crossing.CubicCurve

java.lang.Object

com.graphbuilder.org.apache.harmony.awt.gl.Crossing.CubicCurve

Enclosing class:

Crossing

public static class Crossing.CubicCurve
extends java.lang.Object

CubicCurve class provides basic functionality to find curve crossing and calculating bounds

Field Summary

Fields

Modifier and Type	Field and Description
(package private) double	ax
(package private) double	Ax
(package private) double	Ax3
(package private) double	ay
(package private) double	Ay
(package private) double	bx
(package private) double	Bx
(package private) double	Bx2
(package private) double	by
(package private) double	By
(package private) double	cx
(package private) double	Cx
(package private) double	cy
(package private) double	Cy

Constructor Summary

Constructors

Constructor and Description
CubicCurve(double x1, double y1, double cx1, double cy1, double cx2, double cy2, double x2, double y2)

Method Summary

Modifier and Type	Method and Description
(package private) int	addBound(double[] bound, int bc, double[] res, int rc, double minX, double maxX, boolean changeId, int id)
(package private) int	cross(double[] res, int rc, double py1, double py2)
(package private) int	solveExtremX(double[] res)
(package private) int	solveExtremY(double[] res)
(package private) int	solvePoint(double[] res, double px)

Methods inherited from class java.lang.Object

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

Field Detail

ax

double ax

ay

double ay

bx

double bx

by

double by

cx

double cx

cy

double cy

Ax

double Ax

Ay

double Ay

Bx

double Bx

By

double By

Cx

double Cx

Cy

double Cy

Ax3

double Ax3

Bx2

double Bx2

Constructor Detail

CubicCurve

public CubicCurve(double x1,
                  double y1,
                  double cx1,
                  double cy1,
                  double cx2,
                  double cy2,
                  double x2,
                  double y2)

Method Detail

cross

int cross(double[] res,
          int rc,
          double py1,
          double py2)

solvePoint

int solvePoint(double[] res,
               double px)

solveExtremX

int solveExtremX(double[] res)

solveExtremY

int solveExtremY(double[] res)

addBound

int addBound(double[] bound,
             int bc,
             double[] res,
             int rc,
             double minX,
             double maxX,
             boolean changeId,
             int id)