如何将Exif long / lat转换为实际值? [英] How do I convert Exif long/lat to real values?
问题描述
我试图从我的一些照片中获取Exif数据,这些数据是我收到的纬度和经度值。有人可以帮助我,告诉我这些数字是什么意思?
DEBUG / lat = 30 / 1,12 / 1,34 / 1(7588):lattitude > b
$ b DEBUG / long = 81 / 1,22 / 1,41 / 1(7588):经度
提前。
我打算为这个和东西写一个转换器,但事实证明了答案已经在此博客中
以防万一链接失效:
public class geoDegree {
private boolean valid = false;
双纬度,经度;
geoDegree(ExifInterface exif){
String attrLATITUDE = exif.getAttribute(ExifInterface.TAG_GPS_LATITUDE);
String attrLATITUDE_REF = exif.getAttribute(ExifInterface.TAG_GPS_LATITUDE_REF);
String attrLONGITUDE = exif.getAttribute(ExifInterface.TAG_GPS_LONGITUDE);
String attrLONGITUDE_REF = exif.getAttribute(ExifInterface.TAG_GPS_LONGITUDE_REF);如果((attrLATITUDE!= null)
&&(attrLATITUDE_REF!= null)
&&(attrLONGITUDE!= null)
& &(attrLONGITUDE_REF!= null))
{
valid = true;
if(attrLATITUDE_REF.equals(N)){
Latitude = convertToDegree(attrLATITUDE);
}
else {
Latitude = 0 - convertToDegree(attrLATITUDE);
if(attrLONGITUDE_REF.equals(E)){
Longitude = convertToDegree(attrLONGITUDE);
}
else {
Longitude = 0 - convertToDegree(attrLONGITUDE);
}
}
};
private double convertToDegree(String stringDMS){
Float result = null;
String [] DMS = stringDMS.split(,,3);
String [] stringD = DMS [0] .split(/,2);
Double D0 = new Double(stringD [0]);
Double D1 = new Double(stringD [1]);
Double FloatD = D0 / D1;
String [] stringM = DMS [1] .split(/,2);
Double M0 = new Double(stringM [0]);
Double M1 = new Double(stringM [1]);
Double FloatM = M0 / M1;
String [] stringS = DMS [2] .split(/,2);
Double S0 = new Double(stringS [0]);
Double S1 = new Double(stringS [1]);
Double FloatS = S0 / S1;
result = new Float(FloatD +(FloatM / 60)+(FloatS / 3600));
返回结果;
};
public boolean isValid()
{
return valid;
$ b @Override
public String toString(){
// TODO自动生成的方法存根
return(String.valueOf(Latitude)
+,
+ String.valueOf(Longitude));
public int getLatitudeE6(){
return(int)(Latitude * 1000000);
}
public int getLongitudeE6(){
return(int)(Longitude * 1000000);
}
}
I am trying to get the Exif data from some of my pictures and these are the latitude and longitude values that I am receiving. Can someone help me out and tell me what these numbers mean?
DEBUG/lat = 30/1,12/1,34/1 (7588) : lattitude
DEBUG/long = 81/1,22/1,41/1 (7588) : longitude
thanks in advance.
I was going to write a converter for this and stuff, but it turns out the answer is already in this blog
Just in case if the link goes dead:
public class geoDegree {
private boolean valid = false;
Double Latitude, Longitude;
geoDegree(ExifInterface exif) {
String attrLATITUDE = exif.getAttribute(ExifInterface.TAG_GPS_LATITUDE);
String attrLATITUDE_REF = exif.getAttribute(ExifInterface.TAG_GPS_LATITUDE_REF);
String attrLONGITUDE = exif.getAttribute(ExifInterface.TAG_GPS_LONGITUDE);
String attrLONGITUDE_REF = exif.getAttribute(ExifInterface.TAG_GPS_LONGITUDE_REF);
if((attrLATITUDE !=null)
&& (attrLATITUDE_REF !=null)
&& (attrLONGITUDE != null)
&& (attrLONGITUDE_REF !=null))
{
valid = true;
if(attrLATITUDE_REF.equals("N")){
Latitude = convertToDegree(attrLATITUDE);
}
else{
Latitude = 0 - convertToDegree(attrLATITUDE);
}
if(attrLONGITUDE_REF.equals("E")){
Longitude = convertToDegree(attrLONGITUDE);
}
else{
Longitude = 0 - convertToDegree(attrLONGITUDE);
}
}
};
private Double convertToDegree(String stringDMS){
Float result = null;
String[] DMS = stringDMS.split(",", 3);
String[] stringD = DMS[0].split("/", 2);
Double D0 = new Double(stringD[0]);
Double D1 = new Double(stringD[1]);
Double FloatD = D0/D1;
String[] stringM = DMS[1].split("/", 2);
Double M0 = new Double(stringM[0]);
Double M1 = new Double(stringM[1]);
Double FloatM = M0/M1;
String[] stringS = DMS[2].split("/", 2);
Double S0 = new Double(stringS[0]);
Double S1 = new Double(stringS[1]);
Double FloatS = S0/S1;
result = new Float(FloatD + (FloatM/60) + (FloatS/3600));
return result;
};
public boolean isValid()
{
return valid;
}
@Override
public String toString() {
// TODO Auto-generated method stub
return (String.valueOf(Latitude)
+ ", "
+ String.valueOf(Longitude));
}
public int getLatitudeE6(){
return (int)(Latitude*1000000);
}
public int getLongitudeE6(){
return (int)(Longitude*1000000);
}
}
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