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package org.traccar.geofence;
import java.text.ParseException;
import java.util.ArrayList;
import org.traccar.helper.DistanceCalculator;
public class GeofencePolyline extends GeofenceGeometry {
private ArrayList<Coordinate> coordinates;
private double distance;
public GeofencePolyline() {
}
public GeofencePolyline(String wkt, double distance) throws ParseException {
fromWkt(wkt);
this.distance = distance;
}
@Override
public boolean containsPoint(double latitude, double longitude) {
double longitude360 = longitude + Coordinate.DEGREE360;
for (int i = 1; i < coordinates.size(); i++) {
if (DistanceCalculator.distanceToInterval(
latitude, longitude360, coordinates.get(i - 1).getLat(), coordinates.get(i - 1).getLon360(),
coordinates.get(i).getLat(), coordinates.get(i).getLon360()) <= distance) {
return true;
}
}
return false;
}
@Override
public String toWkt() {
StringBuilder buf = new StringBuilder();
buf.append("LINESTRING (");
for (Coordinate coordinate : coordinates) {
buf.append(String.valueOf(coordinate.getLat()));
buf.append(" ");
buf.append(String.valueOf(coordinate.getLon()));
buf.append(", ");
}
return buf.substring(0, buf.length() - 2) + ")";
}
@Override
public void fromWkt(String wkt) throws ParseException {
if (coordinates == null) {
coordinates = new ArrayList<>();
} else {
coordinates.clear();
}
if (!wkt.startsWith("LINESTRING")) {
throw new ParseException("Mismatch geometry type", 0);
}
String content = wkt.substring(wkt.indexOf("(") + 1, wkt.indexOf(")"));
if (content.isEmpty()) {
throw new ParseException("No content", 0);
}
String[] commaTokens = content.split(",");
if (commaTokens.length < 2) {
throw new ParseException("Not valid content", 0);
}
for (String commaToken : commaTokens) {
String[] tokens = commaToken.trim().split("\\s");
if (tokens.length != 2) {
throw new ParseException("Here must be two coordinates: " + commaToken, 0);
}
Coordinate coordinate = new Coordinate();
try {
coordinate.setLat(Double.parseDouble(tokens[0]));
} catch (NumberFormatException e) {
throw new ParseException(tokens[0] + " is not a double", 0);
}
try {
coordinate.setLon(Double.parseDouble(tokens[1]));
} catch (NumberFormatException e) {
throw new ParseException(tokens[1] + " is not a double", 0);
}
coordinates.add(coordinate);
}
}
public void setDistance(double distance) {
this.distance = distance;
}
}
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