com.graphhopper.util

Interface PointAccess

All Known Implementing Classes:

PointList, ShallowImmutablePointList

public interface PointAccess

Author:

Peter Karich

Method Summary

Modifier and Type	Method and Description
void	ensureNode(int nodeId) This method ensures that the node with the specified index exists i.e.
int	getDimension()
double	getEle(int nodeId) Returns the elevation of the specified nodeId.
double	getLat(int nodeId)
double	getLon(int nodeId)
boolean	is3D()
default void	setNode(int nodeId, double lat, double lon)
void	setNode(int nodeId, double lat, double lon, double ele) This method ensures that the node with the specified index exists and prepares access to it.

Method Detail

is3D

boolean is3D()

Returns:

true if elevation data is stored and can be retrieved

getDimension

int getDimension()

Returns:

3 if elevation enabled. 2 otherwise

ensureNode

void ensureNode(int nodeId)

This method ensures that the node with the specified index exists i.e. allocates space for it.

setNode

default void setNode(int nodeId,
                     double lat,
                     double lon)

setNode

void setNode(int nodeId,
             double lat,
             double lon,
             double ele)

This method ensures that the node with the specified index exists and prepares access to it. The index goes from 0 (inclusive) to graph.getNodes() (exclusive)

This methods sets the latitude, longitude and elevation to the specified value.

getLat

double getLat(int nodeId)

Returns:

the latitude at the specified node index

getLon

double getLon(int nodeId)

Returns:

the longitude at the specified node index

getEle

double getEle(int nodeId)

Returns the elevation of the specified nodeId.