org.opentripplanner.graph_builder.module.ned

Class NEDDownloader

java.lang.Object

org.opentripplanner.graph_builder.module.ned.NEDDownloader

All Implemented Interfaces:

NEDTileSource

public class NEDDownloader
extends Object
implements NEDTileSource

Downloads tiles from the National Elevation Dataset.

Author:

novalis

Constructor Summary

Constructors

Constructor and Description
NEDDownloader()

Method Summary

Modifier and Type	Method and Description
static double	ceil(double value, double step)
void	fetchData(Graph graph, File cacheDirectory) Fetches all of the required data and stores it in the specified cache directory.
static double	floor(double value, double step)
List<File>	getNEDTiles() Download all the NED tiles into the cache.

Methods inherited from class java.lang.Object

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

Constructor Detail

NEDDownloader

public NEDDownloader()

Method Detail

floor

public static double floor(double value,
                           double step)

ceil

public static double ceil(double value,
                          double step)

getNEDTiles

public List<File> getNEDTiles()

Description copied from interface: NEDTileSource

Download all the NED tiles into the cache.

Specified by:

getNEDTiles in interface NEDTileSource

fetchData

public void fetchData(Graph graph,
                      File cacheDirectory)

Description copied from interface: NEDTileSource

Fetches all of the required data and stores it in the specified cache directory. It is crucial that this be somewhere permanent with plenty of disk space. Don't use /tmp -- the downloading process takes a long time and you don't want to repeat it if at all possible.

Specified by:

fetchData in interface NEDTileSource