PamView.zoomer
Class ZoomPolygon

java.lang.Object
  PamView.zoomer.ZoomShape
      PamView.zoomer.ZoomPolygon

public class ZoomPolygon
extends ZoomShape

A zoom polygon created by the zoomer.

Author:

Doug Gillespie

Field Summary

private java.awt.Point	currentMousePoint
private java.awt.Point	startPoint
private double[]	xPoints
private double[]	yPoints

Constructor Summary

ZoomPolygon(Zoomer zoomer, java.awt.Point startPoint, int coordinateType, double xStart, double yStart)

Method Summary

void	closeShape() Shape is complete for whatever reason.
boolean	containsPoint(java.awt.Component component, java.awt.Point pt) Shape contains the point pt.
java.awt.Rectangle	drawShape(java.awt.Graphics g, java.awt.Component component, boolean beforeOther) Draw the shape using the given graphics handle on the given component.
java.awt.Rectangle	drawShapeOutline(java.awt.Graphics g, java.awt.Component component)
java.awt.Rectangle	drawShapeSolid(java.awt.Graphics g, java.awt.Component component)
private double	getArrayMax(double[] array)
private double	getArrayMin(double[] array)
java.awt.Rectangle	getBounds(java.awt.Component component)
int	getNumPoints()
private java.awt.Polygon	getPolygon(java.awt.Component component)
java.awt.Point	getStartPoint()
double	getXLength()
double	getXStart()
double	getYLength()
double	getYStart()
void	newPoint(double x, double y) New point to add to the shape - or update old point if it's a rectangle.
boolean	removeOnZoom()
void	setCurrentMousePoint(java.awt.Point currentMousePoint)

Methods inherited from class PamView.zoomer.ZoomShape

getCoordinateType, getZoomer, isClosed

Methods inherited from class java.lang.Object

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

Field Detail

xPoints

private double[] xPoints

yPoints

private double[] yPoints

currentMousePoint

private java.awt.Point currentMousePoint

startPoint

private java.awt.Point startPoint

Constructor Detail

ZoomPolygon

public ZoomPolygon(Zoomer zoomer,
                   java.awt.Point startPoint,
                   int coordinateType,
                   double xStart,
                   double yStart)

Method Detail

drawShape

public java.awt.Rectangle drawShape(java.awt.Graphics g,
                                    java.awt.Component component,
                                    boolean beforeOther)

Description copied from class: ZoomShape

Draw the shape using the given graphics handle on the given component.

Specified by:

drawShape in class ZoomShape

Parameters:

g - graphics

component - component to draw on

Returns:

outer bounds of drawn region (should be same as getBounds());

drawShapeOutline

public java.awt.Rectangle drawShapeOutline(java.awt.Graphics g,
                                           java.awt.Component component)

drawShapeSolid

public java.awt.Rectangle drawShapeSolid(java.awt.Graphics g,
                                         java.awt.Component component)

getPolygon

private java.awt.Polygon getPolygon(java.awt.Component component)

getBounds

public java.awt.Rectangle getBounds(java.awt.Component component)

Specified by:

getBounds in class ZoomShape

Returns:

the outer bounds of the zoom shape in pixels.

containsPoint

public boolean containsPoint(java.awt.Component component,
                             java.awt.Point pt)

Description copied from class: ZoomShape

Shape contains the point pt.

Note that these are in screen pixel coordinates.

Specified by:

containsPoint in class ZoomShape

pt - point

Returns:

true if the point is within the shape.

newPoint

public void newPoint(double x,
                     double y)

Description copied from class: ZoomShape

New point to add to the shape - or update old point if it's a rectangle.

Specified by:

newPoint in class ZoomShape

Parameters:

x - x coordinate in display units such as time or bearing, NOT PIXELS

y - y coordinate in display units such as time or bearing, NOT PIXELS

closeShape

public void closeShape()

Description copied from class: ZoomShape

Shape is complete for whatever reason.

Overrides:

closeShape in class ZoomShape

removeOnZoom

public boolean removeOnZoom()

Specified by:

removeOnZoom in class ZoomShape

Returns:

true if the object should no longer be displayed after zooming

Basically true for rectangles, false for polygons.

setCurrentMousePoint

public void setCurrentMousePoint(java.awt.Point currentMousePoint)

Parameters:

currentMousePoint - the currentMousePoint to set

getStartPoint

public java.awt.Point getStartPoint()

Returns:

the startPoint

getNumPoints

public int getNumPoints()

getArrayMin

private double getArrayMin(double[] array)

getArrayMax

private double getArrayMax(double[] array)

getXLength

public double getXLength()

Specified by:

getXLength in class ZoomShape

Returns:

the difference between the minimum and maximum x values.

getXStart

public double getXStart()

Specified by:

getXStart in class ZoomShape

Returns:

the lowest x value

getYLength

public double getYLength()

Specified by:

getYLength in class ZoomShape

Returns:

the difference between the minimum and maximum y values.

getYStart

public double getYStart()

Specified by:

getYStart in class ZoomShape

Returns:

the lowest y value