Package hec.gfx2d

Class G2dPolygon

java.lang.Object

java.awt.Polygon

hec.gfx2d.G2dPolygon

All Implemented Interfaces:

ActionListener, Shape, Serializable, EventListener

public class G2dPolygon
extends Polygon
implements ActionListener

G2dPolygon - This class is responsible for representing and drawing a polygon to the screen. The polygon provides methods for drawing the polygon to a graphics context with in a certain clipping region.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected G2dPolygonProperties	_properties	Reference to it properties object
protected static final String	EDIT_PROPERTIES

Fields inherited from class java.awt.Polygon

bounds, npoints, xpoints, ypoints

Constructor Summary

Constructors

Constructor	Description
G2dPolygon()	Constructs a new Polygon with default properties
G2dPolygon(int[] xpoints, int[] ypoints, int npoints)	Constructs a new polygon with the given data
G2dPolygon(G2dPolygonProperties prop)	Constructs a new polygon with the given properties

Method Summary

Modifier and Type	Method	Description
void	actionPerformed(ActionEvent event)
boolean	contains(LocalPt pt)	This method test the given point to see if the point falls within the given polygon.
JMenu	createEditMenu()
protected void	createPopupMenu()
void	drawPolygon(Graphics g, Rectangle clipRect)	This method draws the contents of this polygon to this polygon to the selected graphics context.
void	editProperties()	Method that allows the editing of line properties.
G2dPolygonProperties	getProperties()
void	setGlyph(G2dGlyph g)
void	setPolygonData(int[] xdata, int[] ydata, int npts)
void	setProperties(G2dPolygonProperties propValue)
void	setScale(Scale s)
void	showPopup(Component c, int x, int y)

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

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

Field Details

_properties

protected G2dPolygonProperties _properties

Reference to it properties object

EDIT_PROPERTIES

protected static final String EDIT_PROPERTIES

See Also:

• Constant Field Values

Constructor Details

G2dPolygon

public G2dPolygon()

Constructs a new Polygon with default properties

G2dPolygon

public G2dPolygon(G2dPolygonProperties prop)

Constructs a new polygon with the given properties

G2dPolygon

public G2dPolygon(int[] xpoints,
 int[] ypoints,
 int npoints)

Constructs a new polygon with the given data

Method Details

setScale

public void setScale(Scale s)

setGlyph

public void setGlyph(G2dGlyph g)

showPopup

public void showPopup(Component c,
 int x,
 int y)

createPopupMenu

protected void createPopupMenu()

createEditMenu

public JMenu createEditMenu()

getProperties

public G2dPolygonProperties getProperties()

setProperties

public void setProperties(G2dPolygonProperties propValue)

setPolygonData

public void setPolygonData(int[] xdata,
 int[] ydata,
 int npts)

contains

public boolean contains(LocalPt pt)

This method test the given point to see if the point falls within the given polygon. In other words the point needs to be bounded on all sided by the perimeter of the polygon and the point must be in the same units as the polygon

Returns:

true if the point is bounded by the polygon, otherwise false

drawPolygon

public void drawPolygon(Graphics g,
 Rectangle clipRect)

This method draws the contents of this polygon to this polygon to the selected graphics context. If any part of the polygon falls outside of the clipping region then the polygon is clipped to fit within the clipping region.

Parameters:

clipRect - - the Rectange that defines a clipping rectangle that bounds the polygon

actionPerformed

public void actionPerformed(ActionEvent event)

Specified by:

actionPerformed in interface ActionListener

editProperties

public void editProperties()

Method that allows the editing of line properties. This method displays a visible dialog for line editing.