private static Directory getMetaDirectory(File file) {
try {
Metadata metadata = JpegMetadataReader.readMetadata(file);
return metadata.getDirectory(ExifDirectory.class);
} catch (JpegProcessingException e) {
e.printStackTrace();
}
return null;
}
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 + ")");
}