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

Class Crossing.QuadCurve

java.lang.Object

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

Enclosing class:

Crossing

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

QuadCurve 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	ay
(package private) double	Ay
(package private) double	bx
(package private) double	Bx
(package private) double	by
(package private) double	By

Constructor Summary

Constructors

Constructor and Description
QuadCurve(double x1, double y1, double cx, double cy, 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	solveExtrem(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

Ax

double Ax

Ay

double Ay

Bx

double Bx

By

double By

Constructor Detail

QuadCurve

public QuadCurve(double x1,
                 double y1,
                 double cx,
                 double cy,
                 double x2,
                 double y2)

Method Detail

cross

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

solvePoint

int solvePoint(double[] res,
               double px)

solveExtrem

int solveExtrem(double[] res)

addBound

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