kcl.waterloo.marker

Class ShapeUtils

java.lang.Object

kcl.waterloo.marker.ShapeUtils

public class ShapeUtils
extends java.lang.Object

Method Summary

Modifier and Type	Method and Description
static boolean	contains(java.awt.Shape s1, java.awt.Shape s2) Tests whether shape s2 lays within shape s1.
static double	getArea(java.awt.Shape s) Returns a numerical estimate of the area of a shape.
static java.awt.geom.Point2D.Double	getCentroid(java.awt.Shape s) Returns a numerical estimate of the centroid (center of mass) of the specified Shape.
static double[]	getFlattenedX(java.awt.Shape s)
static double[]	getFlattenedX(java.awt.Shape s, double flatness)
static GJXYSeries	getFlattenedXY(java.awt.Shape s)
static GJXYSeries	getFlattenedXY(java.awt.Shape s, double flatness)
static double[]	getFlattenedY(java.awt.Shape s)
static double[]	getFlattenedY(java.awt.Shape s, double flatness)
static java.awt.geom.Path2D	getFromX(GJGraphInterface gr, java.awt.Shape p, double y)
static java.awt.geom.Path2D	getFromY(GJGraphInterface gr, java.awt.Shape p, double x)
static java.awt.geom.Path2D	getFromZeroX(GJGraphInterface gr, java.awt.Shape p)
static java.awt.geom.Path2D	getFromZeroY(GJGraphInterface gr, java.awt.Shape p, double x)
static java.util.ArrayList<GJPathSegmentInfo>	getSegments(java.awt.Shape p)
static double[]	getStringLocationToArc(double[] xy, double theta, java.lang.String s, java.awt.FontMetrics metrics)
static double[]	getX(java.awt.Shape s)
static GJXYSeries	getXY(java.awt.Shape s)
static double[]	getXYOnArc(java.awt.geom.Ellipse2D arc0, java.awt.geom.Ellipse2D arc1, double theta) Given an arc, arc0 and an angle theta, getXYOnArc returns the XY coordinates for the intersection of theta on the second arc, arc1.
static double[]	getY(java.awt.Shape s)
static boolean	intersects(java.awt.Shape s1, java.awt.Shape s2) Tests whether shape s2 lays within shape s1.
static boolean	isClosed(java.awt.Shape s)
static double	sumdX(java.awt.Shape s)
static java.lang.String	toString(java.awt.Shape s)

Methods inherited from class java.lang.Object

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

Method Detail

getSegments

public static java.util.ArrayList<GJPathSegmentInfo> getSegments(java.awt.Shape p)

getXY

public static GJXYSeries getXY(java.awt.Shape s)

getX

public static double[] getX(java.awt.Shape s)

getFlattenedXY

public static GJXYSeries getFlattenedXY(java.awt.Shape s)

getFlattenedXY

public static GJXYSeries getFlattenedXY(java.awt.Shape s,
                                        double flatness)

getFlattenedX

public static double[] getFlattenedX(java.awt.Shape s)

getFlattenedX

public static double[] getFlattenedX(java.awt.Shape s,
                                     double flatness)

getY

public static double[] getY(java.awt.Shape s)

getFlattenedY

public static double[] getFlattenedY(java.awt.Shape s)

getFlattenedY

public static double[] getFlattenedY(java.awt.Shape s,
                                     double flatness)

getFromZeroX

public static java.awt.geom.Path2D getFromZeroX(GJGraphInterface gr,
                                                java.awt.Shape p)

getFromX

public static java.awt.geom.Path2D getFromX(GJGraphInterface gr,
                                            java.awt.Shape p,
                                            double y)

getFromZeroY

public static java.awt.geom.Path2D getFromZeroY(GJGraphInterface gr,
                                                java.awt.Shape p,
                                                double x)

getFromY

public static java.awt.geom.Path2D getFromY(GJGraphInterface gr,
                                            java.awt.Shape p,
                                            double x)

getArea

public static double getArea(java.awt.Shape s)

Returns a numerical estimate of the area of a shape.

Parameters:

s - a Shape

Returns:

the area.

getCentroid

public static java.awt.geom.Point2D.Double getCentroid(java.awt.Shape s)

Returns a numerical estimate of the centroid (center of mass) of the specified Shape.

Parameters:

s - a Shape object

Returns:

the estimate as a Point2d.Double instance.

contains

public static boolean contains(java.awt.Shape s1,
                               java.awt.Shape s2)

Tests whether shape s2 lays within shape s1.

Parameters:

s1 - a Shape

s2 - a Shape

Returns:

true if s2 lies within s1.

intersects

public static boolean intersects(java.awt.Shape s1,
                                 java.awt.Shape s2)

Tests whether shape s2 lays within shape s1.

Parameters:

s1 - a Shape

s2 - a Shape

Returns:

true if s2 lies within s1.

sumdX

public static double sumdX(java.awt.Shape s)

isClosed

public static boolean isClosed(java.awt.Shape s)

toString

public static java.lang.String toString(java.awt.Shape s)

getXYOnArc

public static double[] getXYOnArc(java.awt.geom.Ellipse2D arc0,
                                  java.awt.geom.Ellipse2D arc1,
                                  double theta)

Given an arc, arc0 and an angle theta, getXYOnArc returns the XY coordinates for the intersection of theta on the second arc, arc1.

Parameters:

arc0 -

arc1 -

theta -

Returns:

getStringLocationToArc

public static double[] getStringLocationToArc(double[] xy,
                                              double theta,
                                              java.lang.String s,
                                              java.awt.FontMetrics metrics)