/* * Copyright 2016 - 2020 Anton Tananaev (anton@traccar.org) * Copyright 2016 Andrey Kunitsyn (andrey@traccar.org) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ 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) { for (int i = 1; i < coordinates.size(); i++) { if (DistanceCalculator.distanceToLine( latitude, longitude, coordinates.get(i - 1).getLat(), coordinates.get(i - 1).getLon(), coordinates.get(i).getLat(), coordinates.get(i).getLon()) <= distance) { return true; } } return false; } @Override public double calculateArea() { return 0; } @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; } }