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