com.attivio.sdk.geo

Class AbstractEllipse

java.lang.Object

com.attivio.sdk.geo.Shape

com.attivio.sdk.geo.AbstractEllipse

All Implemented Interfaces:

Externalizable, Serializable, Cloneable, Comparable<Shape>

Direct Known Subclasses:

Circle, Ellipse

public abstract class AbstractEllipse
extends Shape

Abstract ellipse definition.

WARNING: this API is experimental and will likely change in the near future.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected double	centerX
protected double	centerY

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractEllipse(double centerX, double centerY)

Method Summary

Modifier and Type	Method and Description
protected static double	getA(double sin, double cos, double radiusA2, double radiusB2) Compute the A constant for an ellipse.
protected static double	getB(double sin, double cos, double radiusA2, double radiusB2) Compute the B constant for an ellipse.
protected static double	getC(double sin, double cos, double radiusA2, double radiusB2) Compute the C constant for an ellipse.
Point	getCenter() Get the center point for this circle.
double	getCenterX() Get the X coordinate for the center point.
double	getCenterY() Get the Y coordinate for the center point.
double	getHeight() Get the height of this shape's bounding box.
double	getMaxRadius() Get the minimum radius for this ellipse.
double	getMinRadius() Get the maximum radius for this ellipse.
Point	getPoint(double angle) Get a point on this ellipse at angle.
double	getPointX(double angle) Get the X coordinate for a point on this ellipse at angle.
double	getPointY(double angle) Get the Y coordinate for a point on this ellipse at angle.
protected abstract double	getRadiusA() Get the first radius for the ellipse.
protected abstract double	getRadiusB() Get the second for the ellipse.
protected double	getRotationAngle() Get the rotation angle for this ellipse (in radians).
protected double	getRotationCos() Get the cosine of the rotation angle.
protected double	getRotationSin() Get the sine of the rotation angle.
double	getWidth() Get the width of this shape's bounding box.
abstract boolean	intersects(Rectangle box, AbstractEllipse other) Check for intersection with other.
boolean	intersects(Rectangle box, AbstractPolygon poly) Check if this ellipse intersects with poly.
boolean	intersects(Rectangle box, Shape other) Check if this shape intersects with other.
void	setCenter(Point value)
void	setCenterX(double value)
void	setCenterY(double value)

Methods inherited from class com.attivio.sdk.geo.Shape

addArguments, clone, compareTo, contains, contains, fastIntersects, getBoundingBox, getTypeName, hashCode, intersects, readExternal, readExternal, toString, toString, toString, valueOf, writeExternal, writeExternal

Methods inherited from class java.lang.Object

equals, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

centerX

protected double centerX

centerY

protected double centerY

Constructor Detail

AbstractEllipse

protected AbstractEllipse(double centerX,
                          double centerY)

Method Detail

getWidth

public double getWidth()

Get the width of this shape's bounding box.

Specified by:

getWidth in class Shape

getHeight

public double getHeight()

Get the height of this shape's bounding box.

Specified by:

getHeight in class Shape

getCenter

public final Point getCenter()

Get the center point for this circle.

setCenter

public final void setCenter(Point value)

getCenterX

public final double getCenterX()

Get the X coordinate for the center point.

setCenterX

public final void setCenterX(double value)

getCenterY

public final double getCenterY()

Get the Y coordinate for the center point.

setCenterY

public final void setCenterY(double value)

getRotationAngle

protected double getRotationAngle()

Get the rotation angle for this ellipse (in radians).

getRadiusA

protected abstract double getRadiusA()

Get the first radius for the ellipse.

This is the radius along the X plane.

getRadiusB

protected abstract double getRadiusB()

Get the second for the ellipse.

This is the radius along the Y plane.

getMaxRadius

public double getMaxRadius()

Get the minimum radius for this ellipse.

getMinRadius

public double getMinRadius()

Get the maximum radius for this ellipse.

getRotationSin

protected double getRotationSin()

Get the sine of the rotation angle.

getRotationCos

protected double getRotationCos()

Get the cosine of the rotation angle.

getPoint

public Point getPoint(double angle)

Get a point on this ellipse at angle.

getPointX

public double getPointX(double angle)

Get the X coordinate for a point on this ellipse at angle.

getPointY

public double getPointY(double angle)

Get the Y coordinate for a point on this ellipse at angle.

intersects

public boolean intersects(Rectangle box,
                          Shape other)

Check if this shape intersects with other.

Specified by:

intersects in class Shape

Parameters:

box - The bounding box of this shape from Shape.getBoundingBox().

other - The shape to check for intersection with

intersects

public abstract boolean intersects(Rectangle box,
                                   AbstractEllipse other)

Check for intersection with other.

intersects

public boolean intersects(Rectangle box,
                          AbstractPolygon poly)

Check if this ellipse intersects with poly.

getA

protected static double getA(double sin,
                             double cos,
                             double radiusA2,
                             double radiusB2)

Compute the A constant for an ellipse.

getB

protected static double getB(double sin,
                             double cos,
                             double radiusA2,
                             double radiusB2)

Compute the B constant for an ellipse.

getC

protected static double getC(double sin,
                             double cos,
                             double radiusA2,
                             double radiusB2)

Compute the C constant for an ellipse.