org.deegree_impl.io.bnaapi
Class BNAGeometry

java.lang.Object
  org.deegree_impl.io.bnaapi.BNAGeometry

public class BNAGeometry

extends java.lang.Object

A BNA geometry is a point or an ordered sequence of points. Points are stored as GM_Positions. Ordered sequence can be a ring if the last point has the same coords of the first one. If a ring has _bLine = false, then it's a surface, else it's a polygon.

Version:

2003.08.04

Author:

Emanuele Tajariol

Field Summary

private boolean	_bLine Tells if it's a polygon or a surface
private double	_maxX
private double	_maxY
private double	_minX
private double	_minY
private java.util.Vector	_points The sequence of points

Constructor Summary

protected	BNAGeometry() Construct a surface or a point
protected	BNAGeometry(boolean isLine) Constructor

Method Summary

void	addPoint(GM_Position point) Adds a new point and recompute the envelope
GM_Envelope	getEnvelope()
GM_Position	getPoint(int index)
GM_Position[]	getPoints()
boolean	isLine()
boolean	isPoint()
boolean	isPoly()
boolean	isSurface()
int	size()

Methods inherited from class java.lang.Object

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

Field Detail

_points

private java.util.Vector _points

The sequence of points

_bLine

private boolean _bLine

Tells if it's a polygon or a surface

_maxX

private double _maxX

_maxY

private double _maxY

_minX

private double _minX

_minY

private double _minY

Constructor Detail

BNAGeometry

protected BNAGeometry(boolean isLine)

Constructor

Parameters:

isLine - a boolean telling if this is a line or a surface.

BNAGeometry

protected BNAGeometry()

Construct a surface or a point

Method Detail

size

public int size()

Returns:

the number of point of this geometry

getPoint

public GM_Position getPoint(int index)

Returns:

the index-th point

getPoints

public GM_Position[] getPoints()

Returns:

this geometry as a GM_Position[]

addPoint

public void addPoint(GM_Position point)

Adds a new point and recompute the envelope

getEnvelope

public GM_Envelope getEnvelope()

Returns:

isSurface

public boolean isSurface()

Returns:

a boolean telling if this geometry is a surface.

isPoint

public boolean isPoint()

Returns:

a boolean telling if this geometry is a point.

isPoly

public boolean isPoly()

Returns:

a boolean telling if this geometry is a closed line.

isLine

public boolean isLine()

Returns:

a boolean telling if this geometry is an open line.