geoexplorer.gui

Class Polygon

java.lang.Object

geoexplorer.gui.Polygon

All Implemented Interfaces:

GraphicalPrimitive

public class Polygon
extends java.lang.Object
implements GraphicalPrimitive

A polygon (roughly a sequence of points, interpreted as a closed shape).

Version:

1.0

Author:

Sylvain B.

Field Summary

Fields

Modifier and Type	Field and Description
java.awt.Color	drawColor The drawing color of the shape
java.awt.Color	fillColor The fill color of the shape.

Constructor Summary

Constructors

Constructor and Description
Polygon() Initializes an empty polygon (with no point at the beginning) with default drawing color (strong gray, half opacity) and default fill color (gray, half opacity).
Polygon(java.awt.Color drawColor, java.awt.Color fillColor) Initializes an empty polygon (with no point at the beginning).

Method Summary

Methods

Modifier and Type	Method and Description
void	addPoint(Point point) Adds a point to the polygon (at the end of the current sequence).
void	draw(java.awt.Graphics2D g2d, CoordinateConverter converter) The function that draws the primitive
BoundingBox	getBoundingBox() Computes the bounding box of the graphical primitive.

Methods inherited from class java.lang.Object

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

Field Detail

fillColor

public java.awt.Color fillColor

The fill color of the shape.

drawColor

public java.awt.Color drawColor

The drawing color of the shape

Constructor Detail

Polygon

public Polygon(java.awt.Color drawColor,
       java.awt.Color fillColor)

Initializes an empty polygon (with no point at the beginning).

Parameters:

drawColor - the drawing color.

fillColor - the fill color.

Polygon

public Polygon()

Initializes an empty polygon (with no point at the beginning) with default drawing color (strong gray, half opacity) and default fill color (gray, half opacity).

Method Detail

draw

public void draw(java.awt.Graphics2D g2d,
        CoordinateConverter converter)

Description copied from interface: GraphicalPrimitive

The function that draws the primitive

Specified by:

draw in interface GraphicalPrimitive

Parameters:

g2d - the Graphics2D object on which the shape must be drawn.

converter - the coordinate converter used to convert the primitive's coordinates into the screen (hence Graphics2D) coordinates.

getBoundingBox

public BoundingBox getBoundingBox()

Description copied from interface: GraphicalPrimitive

Computes the bounding box of the graphical primitive.

Specified by:

getBoundingBox in interface GraphicalPrimitive

Returns:

the bounding box of the primitive.

addPoint

public void addPoint(Point point)

Adds a point to the polygon (at the end of the current sequence).

Parameters:

point - the point to be added.