Package org.geotools.geometry.jts

Class LineIterator

Object

AbstractLiteIterator

LineIterator

All Implemented Interfaces:

PathIterator

public final class LineIterator
extends AbstractLiteIterator

A path iterator for the LiteShape class, specialized to iterate over LineString object.

Author:

Andrea Aime, simone giannecchini

Field Summary

Fields inherited from class AbstractLiteIterator

dcoords

Fields inherited from interface PathIterator

SEG_CLOSE, SEG_CUBICTO, SEG_LINETO, SEG_MOVETO, SEG_QUADTO, WIND_EVEN_ODD, WIND_NON_ZERO

Constructor Summary

Constructors

Constructor	Description
LineIterator()
LineIterator(LineString ls, AffineTransform at, boolean generalize, float maxDistance)	Creates a new instance of LineIterator

Method Summary

Modifier and Type	Method	Description
int	currentSegment(double[] coords)
double	getMaxDistance()	Returns the distance limit for point skipping during distance based generalization
int	getWindingRule()	Returns the winding rule for determining the interior of the path.
void	init(LineString ls, AffineTransform at, boolean generalize, float maxDistance)
void	init(LineString ls, AffineTransform at, boolean generalize, float maxDistance, float xScale, float yScale)
boolean	isDone()	Tests if the iteration is complete.
void	next()	Moves the iterator to the next segment of the path forwards along the primary direction of traversal as long as there are more points in that direction.
void	setMaxDistance(float distance)	Sets the distance limit for point skipping during distance based generalization

Methods inherited from class AbstractLiteIterator

currentSegment

Methods inherited from class Object

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

Constructor Detail

LineIterator

public LineIterator()

LineIterator

public LineIterator(LineString ls,
                    AffineTransform at,
                    boolean generalize,
                    float maxDistance)

Creates a new instance of LineIterator

Parameters:

ls - The line string the iterator will use

at - The affine transform applied to coordinates during iteration

Method Detail

init

public void init(LineString ls,
                 AffineTransform at,
                 boolean generalize,
                 float maxDistance,
                 float xScale,
                 float yScale)

Parameters:

ls - a LineString

init

public void init(LineString ls,
                 AffineTransform at,
                 boolean generalize,
                 float maxDistance)

setMaxDistance

public void setMaxDistance(float distance)

Sets the distance limit for point skipping during distance based generalization

Parameters:

distance - the maximum distance for point skipping

getMaxDistance

public double getMaxDistance()

Returns the distance limit for point skipping during distance based generalization

Returns:

the maximum distance for distance based generalization

getWindingRule

public int getWindingRule()

Returns the winding rule for determining the interior of the path.

Returns:

the winding rule.

See Also:

PathIterator.WIND_EVEN_ODD, PathIterator.WIND_NON_ZERO

isDone

public boolean isDone()

Tests if the iteration is complete.

Returns:

true if all the segments have been read; false otherwise.

next

public void next()

Moves the iterator to the next segment of the path forwards along the primary direction of traversal as long as there are more points in that direction.

currentSegment

public int currentSegment(double[] coords)

See Also:

PathIterator.currentSegment(double[])