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Class java.awt.Polygon

java.lang.Object
   |
   +----java.awt.Polygon

public class Polygon

extends Object

implements Shape, Serializable

bounds

npoints

The total number of points.

xpoints

The array of x coordinates.

ypoints

The array of y coordinates.

Polygon()

Creates an empty polygon.

Polygon(int[], int[], int)

Constructs and initializes a Polygon from the specified parameters.

addPoint(int, int)

Appends a point to a polygon.

contains(int, int)

Determines whether the point (x,y) is inside the Polygon.

contains(Point)

Determines whether the specified point is inside the Polygon.

getBoundingBox()

Deprecated.

getBounds()

Returns the bounding box of the shape.

inside(int, int)

Deprecated.

translate(int, int)

Translates the vertices by deltaX, deltaY.

 public int npoints

The total number of points.

 public int xpoints[]

The array of x coordinates.

 public int ypoints[]

The array of y coordinates.

 protected Rectangle bounds

 public Polygon()

Creates an empty polygon.

 public Polygon(int xpoints[],
                int ypoints[],
                int npoints)

Constructs and initializes a Polygon from the specified parameters.

Parameters:

xpoints - the array of x coordinates

ypoints - the array of y coordinates

npoints - the total number of points in the Polygon

 public void translate(int deltaX,
                       int deltaY)

Translates the vertices by deltaX, deltaY.

Parameters:

deltaX - the amount to move the X coords

deltaY - the amount to move the Y coords

 public void addPoint(int x,
                      int y)

Appends a point to a polygon. If inside(x, y) or another operation that calculates the bounding box has already been performed, this method updates the bounds accordingly.

Parameters:

x - the x coordinate of the point

y - the y coordinate of the point

 public Rectangle getBounds()

Returns the bounding box of the shape.

Returns:

a Rectangle defining the bounds of the Polygon.

 public Rectangle getBoundingBox()

Note: getBoundingBox() is deprecated. As of JDK version 1.1, replaced by getBounds().

 public boolean contains(Point p)

Determines whether the specified point is inside the Polygon. Uses an even-odd insideness rule (also known as an alternating rule).

Parameters:

p - the point to be tested

 public boolean contains(int x,
                         int y)

Determines whether the point (x,y) is inside the Polygon. Uses an even-odd insideness rule (also known as an alternating rule).

Parameters:

x - the X coordinate of the point to be tested

y - the Y coordinate of the point to be tested

Kindly donated by Hanpeter van Vliet .

 public boolean inside(int x,
                       int y)

Note: inside() is deprecated. As of JDK version 1.1, replaced by contains(int, int).

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