ImageGeo.java
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package com.thinkgem.jeesite.common.utils;
import com.drew.metadata.*;
import com.drew.metadata.exif.*;
import com.drew.imaging.jpeg.*;
import com.drew.lang.*;
import java.io.*;
public class ImageGeo {
public double lat = 0.0;
public double lon = 0.0;
public double alt = 0.0;
public boolean error = false;
public ImageGeo(String filename) {
try {
error = false;
File jpegFile = new File(filename);
Metadata metadata = JpegMetadataReader.readMetadata(jpegFile);
GpsDirectory gpsdir = (GpsDirectory) metadata
.getDirectory(GpsDirectory.class);
Rational latpart[] = gpsdir
.getRationalArray(GpsDirectory.TAG_GPS_LATITUDE);
Rational lonpart[] = gpsdir
.getRationalArray(GpsDirectory.TAG_GPS_LONGITUDE);
String northing = gpsdir
.getString(GpsDirectory.TAG_GPS_LATITUDE_REF);
String easting = gpsdir
.getString(GpsDirectory.TAG_GPS_LONGITUDE_REF);
try {
alt = gpsdir.getDouble(GpsDirectory.TAG_GPS_ALTITUDE);
} catch (Exception ex) {
}
double latsign = 1.0d;
if (northing.equalsIgnoreCase("S"))
latsign = -1.0d;
double lonsign = 1.0d;
if (easting.equalsIgnoreCase("W"))
lonsign = -1.0d;
lat = (Math.abs(latpart[0].doubleValue())
+ latpart[1].doubleValue() / 60.0d + latpart[2]
.doubleValue() / 3600.0d) * latsign;
lon = (Math.abs(lonpart[0].doubleValue())
+ lonpart[1].doubleValue() / 60.0d + lonpart[2]
.doubleValue() / 3600.0d) * lonsign;
if (Double.isNaN(lat) || Double.isNaN(lon))
error = true;
} catch (Exception ex) {
error = true;
}
System.out.println(filename + ": (" + lat + ", " + lon + ")");
}
public static void main(String[] args) {
ImageGeo imageGeo = new ImageGeo(ImageGeo.class.getResource("IMAG0068.jpg").getFile());
System.out.println(imageGeo.lon+","+imageGeo.lat);
}
}