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package org.traccar.geofence;
import java.text.DecimalFormat;
import java.text.ParseException;
import org.traccar.helper.DistanceCalculator;
public class GeofenceCircle extends GeofenceGeometry {
private double centerLatitude;
private double centerLongitude;
private double radius;
public GeofenceCircle() {
super();
}
public GeofenceCircle(String wkt) throws ParseException {
super();
fromWkt(wkt);
}
public GeofenceCircle(double latitude, double longitude, double radius) {
super();
this.centerLatitude = latitude;
this.centerLongitude = longitude;
this.radius = radius;
}
@Override
public boolean containsPoint(double latitude, double longitude) {
return DistanceCalculator.distance(centerLatitude, centerLongitude, latitude, longitude) <= radius;
}
@Override
public String toWkt() {
String wkt = "";
wkt = "CIRCLE (";
wkt += String.valueOf(centerLatitude);
wkt += " ";
wkt += String.valueOf(centerLongitude);
wkt += ", ";
DecimalFormat format = new DecimalFormat("0.#");
wkt += format.format(radius);
wkt += ")";
return wkt;
}
@Override
public void fromWkt(String wkt) throws ParseException {
if (!wkt.startsWith("CIRCLE")) {
throw new ParseException("Mismatch geometry type", 0);
}
String content = wkt.substring(wkt.indexOf("(") + 1, wkt.indexOf(")"));
if (content == null || content.equals("")) {
throw new ParseException("No content", 0);
}
String[] commatokens = content.split(",");
if (commatokens.length != 2) {
throw new ParseException("Not valid content", 0);
}
String[] tokens = commatokens[0].split("\\s");
if (tokens.length != 2) {
throw new ParseException("Too much or less coordinates", 0);
}
try {
centerLatitude = Double.parseDouble(tokens[0]);
} catch (NumberFormatException e) {
throw new ParseException(tokens[0] + " is not a double", 0);
}
try {
centerLongitude = Double.parseDouble(tokens[1]);
} catch (NumberFormatException e) {
throw new ParseException(tokens[1] + " is not a double", 0);
}
try {
radius = Double.parseDouble(commatokens[1]);
} catch (NumberFormatException e) {
throw new ParseException(commatokens[1] + " is not a double", 0);
}
}
}
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