public void refine() throws Exception {
ArrayList<GPSPoint> arr = GPSPointExtractor.extractFromFile(in);
ArrayList<GPSPoint> arrResult = new ArrayList<>();
StringBuilder sb = new StringBuilder();
GPSPoint pre = null;
for (GPSPoint cur : arr) {
// loai bo 0.0,0.0
if (cur.getLat() == 0.0 || cur.getLng() == 0.0) {
continue;
}
String str = "0002," + cur.getTime() + "," + cur.getLng() + "," + cur.getLat() + "\n";
// cat tia theo thoi gian
if (pre == null) {
pre = cur;
arrResult.add(cur);
// write to file out
MyFile.writeToFile(out, str);
continue;
}
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date curDate = dateFormat.parse(cur.getTime());
Date preDate = dateFormat.parse(pre.getTime());
if (curDate.getTime() - preDate.getTime() > 1000 * 50) {
arrResult.add(cur);
pre = cur;
// write to file out
MyFile.writeToFile(out, str);
}
}
System.out.println("total size: " + arrResult.size());
}
/**
* the result has construct: |folder[name of input] *|file[centroids] // list centroid
* |folder[lists] *|file[sp1] //list point of sp1 **|file[sp2]
*
* @param spArray
*/
@Override
public void writeOutFile(ArrayList<StayPoint> spArray, String path, int disThres, int timeThresh)
throws Exception {
String folderName = MyFile.getFileName(path) + "_" + disThres + "_" + timeThresh;
MyFile.createFolder("output");
MyFile.createFolder("output/" + folderName);
folderName = "output/" + folderName;
String fileName = folderName + "/centroids.txt";
String s = "name,date time,longitude,latitude\n";
// write to centroid file
MyFile.writeToFile(fileName, s);
for (int i = 0; i < spArray.size(); i++) {
StayPoint sp = spArray.get(i);
s =
i
+ ","
+ sp.getStartTime()
+ ","
+ sp.getAvgCoordinate().getLng()
+ ","
+ sp.getAvgCoordinate().getLat()
+ "\n";
MyFile.writeToFile(fileName, s);
}
// write to list
folderName += "/lists";
MyFile.createFolder(folderName);
for (int i = 0; i < spArray.size(); i++) {
StayPoint sp = spArray.get(i);
fileName = folderName + "/" + i + ".txt";
s = "name,date time,longitude,latitude\n";
MyFile.writeToFile(fileName, s);
for (GPSPoint p : sp.getArr()) {
s = i + "," + p.getTime() + "," + p.getLng() + "," + p.getLat() + "\n";
MyFile.writeToFile(fileName, s);
}
}
}