org.kaboum.geom
Class KaboumGeometry

java.lang.Object
  org.kaboum.geom.KaboumGeometry

Direct Known Subclasses:

KaboumGeometryCollection, KaboumLineString, KaboumPoint, KaboumPolygon

public abstract class KaboumGeometry
extends java.lang.Object

This class define a geometry i.e. a geometrical object such as a Point, a Linestring or a polygon object.

Author:

Jérôme Gasperi aka jrom

Field Summary

static java.lang.String	WKT_LINESTRING
static java.lang.String	WKT_POINT CONSTANTS Definition
static java.lang.String	WKT_POLYGON

Constructor Summary

KaboumGeometry()

Method Summary

void	addCoordinate(KaboumCoordinate internal)
void	addCoordinateInGeometryN(KaboumCoordinate internal, int i)
java.lang.Object	clone() Perform an exact copy of this object
abstract boolean	equalsExact(KaboumGeometry other)
abstract double	getArea()
abstract KaboumCoordinate[]	getCoordinates() Returns this Geometry s vertices.
abstract int	getDimension()
abstract KaboumExtent	getExtent()
abstract KaboumCoordinate[]	getExteriorCoordinates() Returns this Geometry s exterior vertices.
abstract int	getExteriorNumPoints()
KaboumGeometry	getGeometryN(int n) Return the number og geometries
abstract java.lang.String	getGeometryType()
int	getNumGeometries() Return the number og geometries
abstract int	getNumPoints() Returns the count of this Geometrys vertices.
abstract double	getPerimeter()
protected static boolean	hasNonEmptyElements(KaboumGeometry[] geometries) Returns true if the array contains any non-empty Geometrys.
protected static boolean	hasNullElements(java.lang.Object[] array) Returns true if the array contains any null elements.
protected static int	indexOf(KaboumCoordinate coordinate, KaboumCoordinate[] coordinates) Returns the index of coordinate in coordinates.
abstract boolean	isClosed()
abstract boolean	isEmpty()
protected boolean	isEquivalentClass(KaboumGeometry other) Return true if this geometry got the same class of other geometry
protected static KaboumCoordinate	minCoordinate(KaboumCoordinate[] coordinates) Returns the minimum coordinate.
abstract void	normalize()
boolean	removeGeometry(KaboumGeometry inputGeometry) Always returns false
protected static void	reversePointOrder(KaboumCoordinate[] coordinates) Flips the positions of the elements in the array so that the last is first.
protected static void	scroll(KaboumCoordinate[] coordinates, KaboumCoordinate firstCoordinate) Shifts the positions of the coordinates until firstCoordinate is first.
abstract boolean	setCoordinates(KaboumCoordinate[] internals) Fill a SIMPLE geometry with input coordinates list

Methods inherited from class java.lang.Object

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

Field Detail

WKT_POINT

public static final java.lang.String WKT_POINT

CONSTANTS Definition

See Also:

Constant Field Values

WKT_LINESTRING

public static final java.lang.String WKT_LINESTRING

See Also:

Constant Field Values

WKT_POLYGON

public static final java.lang.String WKT_POLYGON

See Also:

Constant Field Values

Constructor Detail

KaboumGeometry

public KaboumGeometry()

Method Detail

isEquivalentClass

protected boolean isEquivalentClass(KaboumGeometry other)

Return true if this geometry got the same class of other geometry

reversePointOrder

protected static void reversePointOrder(KaboumCoordinate[] coordinates)

Flips the positions of the elements in the array so that the last is first.

Parameters:

coordinates - the array to rearrange

minCoordinate

protected static KaboumCoordinate minCoordinate(KaboumCoordinate[] coordinates)

Returns the minimum coordinate.

Parameters:

coordinates - the array to search in

Returns:

the minimum coordinate in the array

scroll

protected static void scroll(KaboumCoordinate[] coordinates,
                             KaboumCoordinate firstCoordinate)

Shifts the positions of the coordinates until firstCoordinate is first.

Parameters:

coordinates - the array to rearrange

firstCoordinate - the coordinate to make first

hasNullElements

protected static boolean hasNullElements(java.lang.Object[] array)

Returns true if the array contains any null elements.

Parameters:

array - an array to validate

Returns:

true if any of arrays elements are null

hasNonEmptyElements

protected static boolean hasNonEmptyElements(KaboumGeometry[] geometries)

Returns true if the array contains any non-empty Geometrys.

Parameters:

geometries - an array of Geometrys

indexOf

protected static int indexOf(KaboumCoordinate coordinate,
                             KaboumCoordinate[] coordinates)

Returns the index of coordinate in coordinates. The first position is 0; the second, 1; etc.

Parameters:

coordinate - the Coordinate to search for

coordinates - the array to search

Returns:

the position of coordinate, or -1 if it is not found

clone

public java.lang.Object clone()

Perform an exact copy of this object

Overrides:

clone in class java.lang.Object

getNumGeometries

public int getNumGeometries()

Return the number og geometries

removeGeometry

public boolean removeGeometry(KaboumGeometry inputGeometry)

Always returns false

getGeometryN

public KaboumGeometry getGeometryN(int n)

Return the number og geometries

addCoordinate

public void addCoordinate(KaboumCoordinate internal)

addCoordinateInGeometryN

public void addCoordinateInGeometryN(KaboumCoordinate internal,
                                     int i)

getCoordinates

public abstract KaboumCoordinate[] getCoordinates()

Returns this Geometry s vertices.

Returns:

the vertices of this Geometry

getExteriorCoordinates

public abstract KaboumCoordinate[] getExteriorCoordinates()

Returns this Geometry s exterior vertices.

Returns:

the vertices of this Geometry

setCoordinates

public abstract boolean setCoordinates(KaboumCoordinate[] internals)

Fill a SIMPLE geometry with input coordinates list

Returns:

the vertices of this Geometry

getNumPoints

public abstract int getNumPoints()

Returns the count of this Geometrys vertices.

Returns:

the number of vertices in this Geometry

getExteriorNumPoints

public abstract int getExteriorNumPoints()

isClosed

public abstract boolean isClosed()

getDimension

public abstract int getDimension()

getGeometryType

public abstract java.lang.String getGeometryType()

normalize

public abstract void normalize()

equalsExact

public abstract boolean equalsExact(KaboumGeometry other)

getExtent

public abstract KaboumExtent getExtent()

getArea

public abstract double getArea()

getPerimeter

public abstract double getPerimeter()

isEmpty

public abstract boolean isEmpty()