com.graphhopper.reader.dem

Class AbstractSRTMElevationProvider

java.lang.Object

com.graphhopper.reader.dem.AbstractElevationProvider

com.graphhopper.reader.dem.AbstractSRTMElevationProvider

All Implemented Interfaces:

ElevationProvider

Direct Known Subclasses:

SRTMGL1Provider, SRTMProvider

public abstract class AbstractSRTMElevationProvider
extends AbstractElevationProvider

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 and Description
AbstractSRTMElevationProvider(String baseUrl, String cacheDir, String downloaderName, int defaultWidt)

Method Summary

Modifier and Type	Method and Description
double	getEle(double lat, double lon)
void	release() Release resources.
void	setAutoRemoveTemporaryFiles(boolean autoRemoveTemporary) Creating temporary files can take a long time to fill our DataAccess object, so this option can be used to disable the default clear mechanism via specifying 'false'.

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

getCacheDir, getDirectory, setBaseURL, setCalcMean, setDAType, setDownloader

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractSRTMElevationProvider

public AbstractSRTMElevationProvider(String baseUrl,
                                     String cacheDir,
                                     String downloaderName,
                                     int defaultWidt)

Method Detail

release

public void release()

Description copied from interface: ElevationProvider

Release resources.

setAutoRemoveTemporaryFiles

public void setAutoRemoveTemporaryFiles(boolean autoRemoveTemporary)

Creating temporary files can take a long time to fill our DataAccess object, so this option can be used to disable the default clear mechanism via specifying 'false'.

Specified by:

setAutoRemoveTemporaryFiles in interface ElevationProvider

Overrides:

setAutoRemoveTemporaryFiles in class AbstractElevationProvider

getEle

public double getEle(double lat,
                     double lon)

Returns:

returns the height in meters or Double.NaN if invalid