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.

Other

version: 1.7

protected PackedCoordinateSequence(int dimension, int measures)

Creates an instance of this class

Parameters:: dimension - dimension the total number of ordinates that make up a Coordinate in this sequence.; measures - measures the number of measure-ordinates each Coordinate in this sequence has.

public int getDimension()

See also:: CoordinateSequence#getDimension()

public int getMeasures()

See also:: CoordinateSequence#getMeasures()

public Coordinate getCoordinate(int i)

See also:: CoordinateSequence#getCoordinate(int)

public Coordinate getCoordinateCopy(int i)

See also:: CoordinateSequence#getCoordinate(int)

public void getCoordinate(int i, Coordinate coord)

See also:: CoordinateSequence#getCoordinate(int)

public Coordinate[] toCoordinateArray()

See also:: CoordinateSequence#toCoordinateArray()

public double getX(int index)

See also:: CoordinateSequence#getX(int)

public double getY(int index)

See also:: CoordinateSequence#getY(int)

public abstract abstract double getOrdinate(int index, int ordinateIndex)

See also:: CoordinateSequence#getOrdinate(int, int)

public void setX(int index, double value)

Sets the first ordinate of a coordinate in this sequence.

Parameters:: index - index the coordinate index; value - value the new ordinate value

public void setY(int index, double value)

Sets the second ordinate of a coordinate in this sequence.

Parameters:: index - index the coordinate index; value - value the new ordinate value

public String toString()

protected Object readResolve()

protected abstract abstract Coordinate getCoordinateInternal(int index)

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

Parameters:: index - index the coordinate index

Returns:: the Coordinate at the given index

public abstract abstract Object clone()

See also:: java.lang.Object#clone(); CoordinateSequence#clone()

public abstract abstract PackedCoordinateSequence copy()

public abstract 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.

Parameters:: index - index the coordinate index; ordinate - ordinate the ordinate index in the coordinate, 0 based, smaller than the number of dimensions; value - value the new ordinate value