org.opentripplanner.common.geometry

Class PackedCoordinateSequence

java.lang.Object

org.opentripplanner.common.geometry.PackedCoordinateSequence

All Implemented Interfaces:

com.vividsolutions.jts.geom.CoordinateSequence, Serializable, Cloneable

Direct Known Subclasses:

PackedCoordinateSequence.Double, PackedCoordinateSequence.Float

public abstract class PackedCoordinateSequence
extends Object
implements com.vividsolutions.jts.geom.CoordinateSequence, Serializable, Cloneable

A CoordinateSequence implementation based on a packed arrays. In this implementation, Coordinates returned by #toArray and #get are copies of the internal values. To change the actual values, use the provided setters.

For efficiency, created Coordinate arrays are cached using a soft reference. The cache is cleared each time the coordinate sequence contents are modified through a setter method. 2009-11-25 - bdferris - This class copied from JTS (LGPL-licensed) to add Serializable to the class so that we can serialize it with our graphs

Version:

1.7

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PackedCoordinateSequence.Double Packed coordinate sequence implementation based on doubles
static class	PackedCoordinateSequence.Float Packed coordinate sequence implementation based on floats

Field Summary

Fields

Modifier and Type	Field and Description
protected SoftReference<com.vividsolutions.jts.geom.Coordinate[]>	coordRef A soft reference to the Coordinate[] representation of this sequence.
protected int	dimension The dimensions of the coordinates hold in the packed array

Fields inherited from interface com.vividsolutions.jts.geom.CoordinateSequence

M, X, Y, Z

Constructor Summary

Constructors

Constructor and Description
PackedCoordinateSequence()

Method Summary

Modifier and Type	Method and Description
Object	clone()
com.vividsolutions.jts.geom.Coordinate	getCoordinate(int i)
void	getCoordinate(int i, com.vividsolutions.jts.geom.Coordinate coord)
com.vividsolutions.jts.geom.Coordinate	getCoordinateCopy(int i)
protected abstract com.vividsolutions.jts.geom.Coordinate	getCoordinateInternal(int index) Returns a Coordinate representation of the specified coordinate, by always building a new Coordinate object
int	getDimension()
abstract double	getOrdinate(int index, int ordinateIndex)
double	getX(int index)
double	getY(int index)
abstract void	setOrdinate(int index, int ordinate, double value) Sets the ordinate of a coordinate in this sequence.
void	setX(int index, double value) Sets the first ordinate of a coordinate in this sequence.
void	setY(int index, double value) Sets the second ordinate of a coordinate in this sequence.
com.vividsolutions.jts.geom.Coordinate[]	toCoordinateArray()
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.vividsolutions.jts.geom.CoordinateSequence

expandEnvelope, size

Field Detail

dimension

protected int dimension

The dimensions of the coordinates hold in the packed array

coordRef

protected transient SoftReference<com.vividsolutions.jts.geom.Coordinate[]> coordRef

A soft reference to the Coordinate[] representation of this sequence. Makes repeated coordinate array accesses more efficient.

Constructor Detail

PackedCoordinateSequence

public PackedCoordinateSequence()

Method Detail

getDimension

public int getDimension()

Specified by:

getDimension in interface com.vividsolutions.jts.geom.CoordinateSequence

See Also:

CoordinateSequence.getDimension()

getCoordinate

public com.vividsolutions.jts.geom.Coordinate getCoordinate(int i)

Specified by:

getCoordinate in interface com.vividsolutions.jts.geom.CoordinateSequence

See Also:

CoordinateSequence.getCoordinate(int)

getCoordinateCopy

public com.vividsolutions.jts.geom.Coordinate getCoordinateCopy(int i)

Specified by:

getCoordinateCopy in interface com.vividsolutions.jts.geom.CoordinateSequence

See Also:

CoordinateSequence.getCoordinate(int)

getCoordinate

public void getCoordinate(int i,
                          com.vividsolutions.jts.geom.Coordinate coord)

Specified by:

getCoordinate in interface com.vividsolutions.jts.geom.CoordinateSequence

See Also:

CoordinateSequence.getCoordinate(int)

toCoordinateArray

public com.vividsolutions.jts.geom.Coordinate[] toCoordinateArray()

Specified by:

toCoordinateArray in interface com.vividsolutions.jts.geom.CoordinateSequence

See Also:

CoordinateSequence.toCoordinateArray()

getX

public double getX(int index)

Specified by:

getX in interface com.vividsolutions.jts.geom.CoordinateSequence

See Also:

CoordinateSequence.getX(int)

getY

public double getY(int index)

Specified by:

getY in interface com.vividsolutions.jts.geom.CoordinateSequence

See Also:

CoordinateSequence.getY(int)

getOrdinate

public abstract double getOrdinate(int index,
                                   int ordinateIndex)

Specified by:

getOrdinate in interface com.vividsolutions.jts.geom.CoordinateSequence

See Also:

CoordinateSequence.getOrdinate(int, int)

setX

public void setX(int index,
                 double value)

Sets the first ordinate of a coordinate in this sequence.

Parameters:

index - the coordinate index

value - the new ordinate value

setY

public void setY(int index,
                 double value)

Sets the second ordinate of a coordinate in this sequence.

Parameters:

index - the coordinate index

value - the new ordinate value

getCoordinateInternal

protected abstract com.vividsolutions.jts.geom.Coordinate getCoordinateInternal(int index)

Returns a Coordinate representation of the specified coordinate, by always building a new Coordinate object

Parameters:

index -

Returns:

clone

public Object clone()

Specified by:

clone in interface com.vividsolutions.jts.geom.CoordinateSequence

Overrides:

clone in class Object

See Also:

Object.clone()

setOrdinate

public abstract void setOrdinate(int index,
                                 int ordinate,
                                 double value)

Sets the ordinate of a coordinate in this sequence.
Warning: for performance reasons the ordinate index is not checked - if it is over dimensions you may not get an exception but a meaningless value.

Specified by:

setOrdinate in interface com.vividsolutions.jts.geom.CoordinateSequence

Parameters:

index - the coordinate index

ordinate - the ordinate index in the coordinate, 0 based, smaller than the number of dimensions

value - the new ordinate value

toString

public String toString()

Overrides:

toString in class Object