ur_rna.Utilities.geom

Class Ellipses

java.lang.Object

ur_rna.Utilities.geom.Ellipses

public class Ellipses
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Ellipses.Circle

Field Summary

Fields

Modifier and Type	Field and Description
static double	toScreenDegrees

Constructor Summary

Constructors

Constructor and Description
Ellipses()

Method Summary

Modifier and Type	Method and Description
static java.awt.geom.Arc2D.Double	arc(java.awt.geom.Point2D center, double radius, double startAngle, double endAngle, boolean reversed, int arcType) The normal Arc2D constructor expects the angles in degrees.
static java.awt.geom.Arc2D.Double	arc(java.awt.geom.Point2D center, double radius, double startAngle, double arcAngle, int arcType)
static double	calcArcExtent(double startAngle, double endAngle, boolean reversed)
static java.awt.geom.Ellipse2D.Double	fromCenter(double x, double y, double radius)
static java.awt.geom.Ellipse2D.Double	fromCenter(double x, double y, double w, double h)
static java.awt.geom.Ellipse2D.Double	fromCenter(java.awt.geom.Point2D p, double radius)
static java.awt.geom.Ellipse2D.Double	fromCenter(java.awt.geom.Point2D p, double w, double h)
static java.awt.geom.Ellipse2D.Double	fromCenter(Vec2D p, double radius)
static java.awt.geom.Ellipse2D.Double	fromCenter(Vec2D p, double w, double h)
static java.awt.geom.Ellipse2D.Double	fromRect(java.awt.geom.Rectangle2D rc)

Methods inherited from class java.lang.Object

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

Field Detail

toScreenDegrees

public static final double toScreenDegrees

See Also:

Constant Field Values

Constructor Detail

Ellipses

public Ellipses()

Method Detail

arc

public static java.awt.geom.Arc2D.Double arc(java.awt.geom.Point2D center,
                                             double radius,
                                             double startAngle,
                                             double endAngle,
                                             boolean reversed,
                                             int arcType)

The normal Arc2D constructor expects the angles in degrees. Additionally it

Parameters:

center - the center of the arc's circle

radius - the radius of the arc's circle

startAngle - the starting angle in radians. This will be multiplied by toScreenDegrees to account for the upside-down screen coordinates and convert from radians to degrees.

endAngle - the end angle in radians. This will be multiplied by toScreenDegrees to account for the upside-down screen coordinates and convert from radians to degrees.

reversed - The direction in which the arc should be drawn clockwise(reversed=true) or counter-clockwise(reversed=false).

arcType - The type of arc to draw: Arc2D.CHORD, Arc2D.PIE, or Arc2D.OPEN

arc

public static java.awt.geom.Arc2D.Double arc(java.awt.geom.Point2D center,
                                             double radius,
                                             double startAngle,
                                             double arcAngle,
                                             int arcType)

calcArcExtent

public static double calcArcExtent(double startAngle,
                                   double endAngle,
                                   boolean reversed)

fromCenter

public static java.awt.geom.Ellipse2D.Double fromCenter(double x,
                                                        double y,
                                                        double radius)

fromCenter

public static java.awt.geom.Ellipse2D.Double fromCenter(double x,
                                                        double y,
                                                        double w,
                                                        double h)

fromCenter

public static java.awt.geom.Ellipse2D.Double fromCenter(java.awt.geom.Point2D p,
                                                        double radius)

fromCenter

public static java.awt.geom.Ellipse2D.Double fromCenter(java.awt.geom.Point2D p,
                                                        double w,
                                                        double h)

fromCenter

public static java.awt.geom.Ellipse2D.Double fromCenter(Vec2D p,
                                                        double radius)

fromCenter

public static java.awt.geom.Ellipse2D.Double fromCenter(Vec2D p,
                                                        double w,
                                                        double h)

fromRect

public static java.awt.geom.Ellipse2D.Double fromRect(java.awt.geom.Rectangle2D rc)