Package com.graphhopper.reader.dem

Class AbstractSRTMElevationProvider

java.lang.Object

com.graphhopper.reader.dem.TileBasedElevationProvider

com.graphhopper.reader.dem.AbstractSRTMElevationProvider

All Implemented Interfaces:

ElevationProvider

Direct Known Subclasses:

HGTProvider, SkadiProvider, SRTMGL1Provider, SRTMProvider

public abstract class AbstractSRTMElevationProvider
extends TileBasedElevationProvider

Common functionality used when working with SRTM hgt data.

Author:

Robin Boldt

Field Summary

Fields inherited from interface com.graphhopper.reader.dem.ElevationProvider

NOOP

Constructor Summary

Constructors

Constructor	Description
AbstractSRTMElevationProvider(String baseUrl, String cacheDir, String downloaderName, int minLat, int maxLat, int defaultWidth)

Method Summary

Modifier and Type	Method	Description
double	getEle(double lat, double lon)
protected String	getPaddedLatString(int latInt)
protected String	getPaddedLonString(int lonInt)
void	release()	Release resources.

Methods inherited from class com.graphhopper.reader.dem.TileBasedElevationProvider

canInterpolate, getCacheDir, getDirectory, setAutoRemoveTemporaryFiles, setBaseURL, setDAType, setDownloader, setInterpolate

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.graphhopper.reader.dem.ElevationProvider

getEle

Constructor Details

AbstractSRTMElevationProvider

public AbstractSRTMElevationProvider(String baseUrl,
 String cacheDir,
 String downloaderName,
 int minLat,
 int maxLat,
 int defaultWidth)

Method Details

release

public void release()

Description copied from interface: ElevationProvider

Release resources.

getEle

public double getEle(double lat,
 double lon)

Returns:

returns the height in meters or Double.NaN if invalid

getPaddedLonString

protected String getPaddedLonString(int lonInt)

getPaddedLatString

protected String getPaddedLatString(int latInt)