: Class Ellipse

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## Class Ellipse

    java.lang.Object
      |
      +--java.awt.geom.RectangularShape
            |
            +--java.awt.geom.Ellipse2D
                  |
                  +--java.awt.geom.Ellipse2D.Double
                        |
                        +--Ellipse

class Ellipse
extends java.awt.geom.Ellipse2D.Double
implements GeometricObject

This class represents an Ellipse described by its upper_left, corner width and height of the encapsulating rectangle.

Inner classes inherited from class java.awt.geom.Ellipse2D
`java.awt.geom.Ellipse2D.Double, java.awt.geom.Ellipse2D.Float`

Field Summary
`java.awt.Graphics` | `graphics` Graphics context for this Geometric object.
`private Polygon` | `points` The original data points
`long` | `time_stamp` Time stamp of this object.

Fields inherited from class java.awt.geom.Ellipse2D.Double
`height, width, x, y`

Fields inherited from interface GeometricObject
`CIRCLE, ELLIPSE, LINE, POINT, POLYGON, RECTANGLE, SQUARE`

Constructor Summary
`(package private)` | `Ellipse()` The constructor.
`(package private)` | `Ellipse(double x, double y, double width, double height)` The constructor.
`(package private)` | `Ellipse(Point upper_left, java.awt.Dimension d)` The constructor.
`(package private)` | `Ellipse(Point upper_left, int width, int height)` The constructor.

Method Summary
`boolean` | `containsGeometricObject(GeometricObject object)` Returns false if the argument is not completely inside this object.
`boolean` | `containsGeometricObjects(GeometricObject[] objects)` Returns false if the objects in the input array are completely inside this object.
`Polygon` | `getDataPoints()` This method is used to get the original data points that forms this GeometricObject
`Polygon` | `getPolygonalBounds()` This method should return a polygon that corresponds to this object.
`Rectangle` | `getRectangularBounds()` Supplied for completeness.
`long` | `getTimeStamp()` Returns the time stamp of the current Terminal
`java.lang.String` | `getType()` Implement GeometricObject
`java.lang.String` | `getTypeWithTolerance(double tolerance)` This returns "circle" if the width/height ratio is within tolerance neighborhood of 1.
`void` | `paint()` Draw the object
`void` | `paint(java.awt.Graphics g)` Draw the object
`void` | `paintOriginal(java.awt.Graphics g)` This method is used to paint the original data points that forms this GeometricObject
`boolean` | `pointIsOn(Point p, int radius)` Returns true if the point is within +-radius distance from the curve defining the object.
`boolean` | `pointIsOnOriginal(Point p, int radius)` Returns true if the point is within +-radius distance from the original curve defining the object.
`void` | `setDataPoints(Polygon points)` This method is used to set the original data points that forms this GeometricObject
`void` | `setGraphicsContext(java.awt.Graphics g)` Set graphics context for this Geometric object.
`void` | `setTimeStamp(long time_stamp)` Sets the time stamp of the current Terminal
`int` | `spatialRelation(GeometricObject object)` This method should return the spatial relation of the input parameter with respect to this object.
`java.lang.String` | `toString()` Override toString
`boolean` | `touches(GeometricObject object)` This method should return true if the input objects touch.

Methods inherited from class java.awt.geom.Ellipse2D.Double
`getBounds2D, getHeight, getWidth, getX, getY, isEmpty, setFrame`

Methods inherited from class java.awt.geom.Ellipse2D
`contains, contains, getPathIterator, intersects`

Methods inherited from class java.awt.geom.RectangularShape
`clone, contains, contains, getBounds, getCenterX, getCenterY, getFrame, getMaxX, getMaxY, getMinX, getMinY, getPathIterator, intersects, setFrame, setFrame, setFrameFromCenter, setFrameFromCenter, setFrameFromDiagonal, setFrameFromDiagonal`

Methods inherited from class java.lang.Object
`, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, wait, wait, wait`

Field Detail

### points

    private Polygon points

  The original data points

### time_stamp

    public long time_stamp

  Time stamp of this object.

### graphics

    public java.awt.Graphics graphics

  Graphics context for this Geometric object.

Constructor Detail

### Ellipse

    Ellipse()

  The constructor.

### Ellipse

    Ellipse(double x,
            double y,
            double width,
            double height)

  The constructor.

### Ellipse

    Ellipse(Point upper_left,
            int width,
            int height)

  The constructor.

### Ellipse

    Ellipse(Point upper_left,
            java.awt.Dimension d)

  The constructor.

Method Detail

### getType

    public java.lang.String getType()

  Implement GeometricObject

### getTypeWithTolerance

    public java.lang.String getTypeWithTolerance(double tolerance)

  This returns "circle" if the width/height ratio is within tolerance neighborhood of 1.

### toString

    public java.lang.String toString()

  Override toString
  Overrides:
    toString in class java.lang.Object

### paint

    public void paint()

  Draw the object

### paint

    public void paint(java.awt.Graphics g)

  Draw the object

### paintOriginal

    public void paintOriginal(java.awt.Graphics g)

  This method is used to paint the original data points that forms this GeometricObject

### pointIsOn

    public boolean pointIsOn(Point p,
                             int radius)

  Returns true if the point is within +-radius distance from the curve defining the object. Returns false o/w.
  Specified by:
    pointIsOn in interface GeometricObject

### pointIsOnOriginal

    public boolean pointIsOnOriginal(Point p,
                                     int radius)

  Returns true if the point is within +-radius distance from the original curve defining the object. Returns false o/w.
  Specified by:
    pointIsOnOriginal in interface GeometricObject

### setGraphicsContext

    public void setGraphicsContext(java.awt.Graphics g)

  Set graphics context for this Geometric object. Must be set at least once before doing any drawing.

### touches

    public boolean touches(GeometricObject object)

  This method should return true if the input objects touch. It should be optimized making use of the object type information.
  Specified by:
    touches in interface GeometricObject

### getRectangularBounds

    public Rectangle getRectangularBounds()

  Supplied for completeness.
  Specified by:
    getRectangularBounds in interface GeometricObject

### containsGeometricObject

    public boolean containsGeometricObject(GeometricObject object)

  Returns false if the argument is not completely inside this object. Return true O/W.
  Specified by:
    containsGeometricObject in interface GeometricObject

### getPolygonalBounds

    public Polygon getPolygonalBounds()

  This method should return a polygon that corresponds to this object. The polygon is implicity closed and the last point doesn't necessarily have to be the same as the first (zeroth) point. The returned polygon is a liberal approximation to the real shape of the object. Known eksik: This should be refined to return a more conservative result.
  Specified by:
    getPolygonalBounds in interface GeometricObject

### spatialRelation

    public int spatialRelation(GeometricObject object)

  This method should return the spatial relation of the input parameter with respect to this object. see the SpatialRelation class for a detailed list of possible spatial relations. Another version of this method should be implemented for handling spatial relations where a rotated coordinate system is to be used.
  Specified by:
    spatialRelation in interface GeometricObject

### setTimeStamp

    public void setTimeStamp(long time_stamp)

  Sets the time stamp of the current Terminal

### getTimeStamp

    public long getTimeStamp()

  Returns the time stamp of the current Terminal

### setDataPoints

    public void setDataPoints(Polygon points)

  This method is used to set the original data points that forms this GeometricObject
  Specified by:
    setDataPoints in interface GeometricObject

### getDataPoints

    public Polygon getDataPoints()

  This method is used to get the original data points that forms this GeometricObject
  Specified by:
    getDataPoints in interface GeometricObject

### containsGeometricObjects

    public boolean containsGeometricObjects(GeometricObject[] objects)

  Returns false if the objects in the input array are completely inside this object. Return true O/W.
  Specified by:
    containsGeometricObjects in interface GeometricObject

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