edu.umn.cs.spatialHadoop.core

Class Polygon

java.lang.Object

java.awt.Polygon

edu.umn.cs.spatialHadoop.core.Polygon

All Implemented Interfaces:

TextSerializable, java.awt.Shape, java.io.Serializable, java.lang.Cloneable

public class Polygon
extends java.awt.Polygon
implements Shape

A class that represents a polygon using a list of points.

Author:

eldawy

See Also:

Serialized Form

Field Summary

Fields inherited from class java.awt.Polygon

bounds, npoints, xpoints, ypoints

Constructor Summary

Constructors

Constructor and Description
Polygon()
Polygon(int[] xpoints, int[] ypoints, int npoints)

Method Summary

Methods

Modifier and Type	Method and Description
Polygon	clone() Returns a clone of this shape
double	distanceTo(double x, double y) Gets the distance of this shape to the given point.
void	draw(java.awt.Graphics g, double xscale, double yscale) Draws the shape to the given graphics and scale.
void	draw(java.awt.Graphics g, Rectangle fileMBR, int imageWidth, int imageHeight, double scale) Draws a shape to the given graphics.
void	fromText(Text text) Retrieve information from the given text.
Rectangle	getMBR() Returns minimum bounding rectangle for this shape.
boolean	isIntersected(Shape s) Returns true if this shape is intersected with the given shape
void	readFields(java.io.DataInput in)
void	set(int[] xpoints, int[] ypoints, int npoints) Set the points in the rectangle to the given array
Text	toText(Text text) Store current object as string in the given text appending text already there.
void	write(java.io.DataOutput out)

Methods inherited from class java.awt.Polygon

addPoint, contains, contains, contains, contains, contains, contains, getBoundingBox, getBounds, getBounds2D, getPathIterator, getPathIterator, inside, intersects, intersects, invalidate, reset, translate

Methods inherited from class java.lang.Object

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

Constructor Detail

Polygon

public Polygon()

Polygon

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

Method Detail

set

public void set(int[] xpoints,
       int[] ypoints,
       int npoints)

Set the points in the rectangle to the given array

Parameters:

xpoints -

ypoints -

npoints -

write

public void write(java.io.DataOutput out)
           throws java.io.IOException

Throws:

java.io.IOException

readFields

public void readFields(java.io.DataInput in)
                throws java.io.IOException

Throws:

java.io.IOException

toText

public Text toText(Text text)

Description copied from interface: TextSerializable

Store current object as string in the given text appending text already there.

Specified by:

toText in interface TextSerializable

fromText

public void fromText(Text text)

Description copied from interface: TextSerializable

Retrieve information from the given text.

Specified by:

fromText in interface TextSerializable

getMBR

public Rectangle getMBR()

Description copied from interface: Shape

Returns minimum bounding rectangle for this shape.

Returns:

distanceTo

public double distanceTo(double x,
                double y)

Description copied from interface: Shape

Gets the distance of this shape to the given point.

Returns:

isIntersected

public boolean isIntersected(Shape s)

Description copied from interface: Shape

Returns true if this shape is intersected with the given shape

Returns:

clone

public Polygon clone()

Description copied from interface: Shape

Returns a clone of this shape

Overrides:

clone in class java.lang.Object

Returns:

draw

public void draw(java.awt.Graphics g,
        Rectangle fileMBR,
        int imageWidth,
        int imageHeight,
        double scale)

Description copied from interface: Shape

Draws a shape to the given graphics.

Parameters:

g - - the graphics or canvas to draw to

fileMBR - - the MBR of the file in which the shape is contained

imageWidth - - width of the image to draw

imageHeight - - height of the image to draw

scale - - the scale used to convert shape coordinates to image coordinates

draw

public void draw(java.awt.Graphics g,
        double xscale,
        double yscale)

Description copied from interface: Shape

Draws the shape to the given graphics and scale.

Parameters:

g - - the graphics to draw the shape to.

xscale - - scale of the image x-axis in terms of pixels per points.

yscale - - scale of the image y-axis in terms of pixels per points.