ilog.tgo.grprim
Class IltPolygon

java.lang.Object
  java.awt.Polygon
      ilog.util.IlIntPolygon
          ilog.tgo.grprim.IltPolygon

All Implemented Interfaces:

Shape, Serializable

public class IltPolygon
extends IlIntPolygon

This class describes a polygon where all the corners have integer coordinates.

See Also:

IltPolyline, Serialized Form

Field Summary

Fields inherited from class ilog.util.IlIntPolygon

EvenOddRule, WindingRule

Fields inherited from class java.awt.Polygon

bounds, npoints, xpoints, ypoints

Constructor Summary

IltPolygon(int[] xpoints, int[] ypoints, int npoints)
Creates a polygon.

IltPolygon(int[] xpoints, int[] ypoints, int npoints, int fillRule)
Deprecated. Please use the three-argument constructor. The only supported fillRule is EvenOddRule anyway.

Method Summary

void	addPoint(int x, int y)
boolean	contains(int x, int y) Determines whether a point is contained in the inside area of this polygon.
boolean	containsInClosure(int x, int y) Determines whether a point is contained in this polygon (inside or on the border).
boolean	containsInInterior(int x, int y) Determines whether a point is contained in the inside area of this polygon.
Polygon	getFillingPolygon() Returns a polygon which, when filled according to EvenOddRule, represents (approximately) this polygon.
Enumeration	horizontalLineIntersection(int y) Intersects this polygon with a given horizontal line, and returns an enumeration of the intervals belonging to the polygon.

Methods inherited from class ilog.util.IlIntPolygon

getFillRule, setFillRule, toString

Methods inherited from class java.awt.Polygon

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, wait, wait, wait

Constructor Detail

IltPolygon

public IltPolygon(int[] xpoints,
                  int[] ypoints,
                  int npoints,
                  int fillRule)

Deprecated. Please use the three-argument constructor. The only supported fillRule is EvenOddRule anyway.

Creates a polygon.

Note: The implementation may remove redundant points.

Parameters:

xpoints - the array of x coordinates

ypoints - the array of y coordinates

npoints - the total number of points in the polygon

fillRule - the filling mode of this polygon

Deprecated Since:

JTGO 3.0

IltPolygon

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

Creates a polygon. The default fillRule is EvenOddRule.

Note: The implementation may remove redundant points.

Parameters:

xpoints - the array of x coordinates

ypoints - the array of y coordinates

npoints - the total number of points in the polygon

Method Detail

containsInInterior

public boolean containsInInterior(int x,
                                  int y)

Determines whether a point is contained in the inside area of this polygon.

Parameters:

x - the x coordinate of the point to be tested

y - the y coordinate of the point to be tested

containsInClosure

public boolean containsInClosure(int x,
                                 int y)

Determines whether a point is contained in this polygon (inside or on the border).

Parameters:

x - the x coordinate of the point to be tested

y - the y coordinate of the point to be tested

contains

public boolean contains(int x,
                        int y)

Determines whether a point is contained in the inside area of this polygon.

Overrides:

contains in class Polygon

Parameters:

x - the x coordinate of the point to be tested

y - the y coordinate of the point to be tested

horizontalLineIntersection

public Enumeration horizontalLineIntersection(int y)

Intersects this polygon with a given horizontal line, and returns an enumeration of the intervals belonging to the polygon.

Overrides:

horizontalLineIntersection in class IlIntPolygon

Parameters:

y - the y coordinate of the horizontal line

Returns:

an enumeration of IltPolygon.IlHorizontalInterval

Internal method or field: do not use!

addPoint

public void addPoint(int x,
                     int y)

Overrides:

addPoint in class Polygon

getFillingPolygon

public Polygon getFillingPolygon()

Returns a polygon which, when filled according to EvenOddRule, represents (approximately) this polygon.

Overrides:

getFillingPolygon in class IlIntPolygon