org.geolatte.geom

Interface PositionSequence<P extends Position>

All Superinterfaces:

java.lang.Iterable<P>

All Known Implementing Classes:

AbstractPositionSequence, NestedPositionSequence, PackedPositionSequence

public interface PositionSequence<P extends Position>
extends java.lang.Iterable<P>

A PositionSequence is an ordered sequence of Positions.

A PositionSequence is typically used to store the Positions (vertices) that define a curve (a 1-dimensional geometric primitive), with the subtype of the curve specifying the form of interpolation between consecutive Positions. (E.g.a LineString uses linear interpolation between Positions.)

Method Summary

Modifier and Type	Method and Description
void	accept(LLAPositionVisitor visitor) Accepts a LLAPositionVisitor.
void	accept(PositionVisitor<P> visitor) Accepts a PositionVisitor.
PositionSequence<P>	clone()
int	getCoordinateDimension() Returns the coordinate dimension of this PositionSequence.
void	getCoordinates(int position, double[] coordinates) Copies the coordinates at position i into the specified array.
java.lang.Class<P>	getPositionClass()
PositionFactory<P>	getPositionFactory()
P	getPositionN(int index)
boolean	isEmpty() Returns true iff this PositionSequence contains no Positions
PositionSequence<P>	reverse() Creates a new PositionSequence with positions in reverse order.
int	size() Returns the number of Positions contained in this PositionSequence.

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Method Detail

clone

PositionSequence<P> clone()

getPositionClass

java.lang.Class<P> getPositionClass()

getPositionFactory

PositionFactory<P> getPositionFactory()

isEmpty

boolean isEmpty()

Returns true iff this PositionSequence contains no Positions

Returns:

true iff this PositionSequence contains no Positions

getCoordinateDimension

int getCoordinateDimension()

Returns the coordinate dimension of this PositionSequence.

The coordinate dimension is number of measurements or axes needed to describe Position in the coordinate system associated with this PositionSequence.

Returns:

the coordinate dimension of this PositionSequence

size

int size()

Returns the number of Positions contained in this PositionSequence.

Returns:

the number of Positions contained in this PositionSequence.

getCoordinates

void getCoordinates(int position,
                    double[] coordinates)

Copies the coordinates at position i into the specified array.

Parameters:

position - the position index to copy

coordinates - the destination array

Throws:

java.lang.IllegalArgumentException - if the destination array is smaller than the coordiante dimension.

getPositionN

P getPositionN(int index)

accept

void accept(PositionVisitor<P> visitor)

Accepts a PositionVisitor.

This instance will pass the visitor to all of its Positions.

Parameters:

visitor - the visitor for this instance's Positions

accept

void accept(LLAPositionVisitor visitor)

Accepts a LLAPositionVisitor.

Parameters:

visitor -

reverse

PositionSequence<P> reverse()

Creates a new PositionSequence with positions in reverse order.

Returns: