diff options
Diffstat (limited to 'src/org/traccar/geofence')
| -rw-r--r-- | src/org/traccar/geofence/GeofenceGeometry.java | 22 | ||||
| -rw-r--r-- | src/org/traccar/geofence/GeofencePolygon.java | 73 | ||||
| -rw-r--r-- | src/org/traccar/geofence/GeofencePolyline.java | 107 |
3 files changed, 161 insertions, 41 deletions
diff --git a/src/org/traccar/geofence/GeofenceGeometry.java b/src/org/traccar/geofence/GeofenceGeometry.java index 6b5b0acb7..857ba3414 100644 --- a/src/org/traccar/geofence/GeofenceGeometry.java +++ b/src/org/traccar/geofence/GeofenceGeometry.java @@ -25,4 +25,26 @@ public abstract class GeofenceGeometry { public abstract void fromWkt(String wkt) throws ParseException; + public static class Coordinate { + + private double lat; + private double lon; + + public double getLat() { + return lat; + } + + public void setLat(double lat) { + this.lat = lat; + } + + public double getLon() { + return lon; + } + + public void setLon(double lon) { + this.lon = lon; + } + } + } diff --git a/src/org/traccar/geofence/GeofencePolygon.java b/src/org/traccar/geofence/GeofencePolygon.java index 03638d6c9..2048ba26d 100644 --- a/src/org/traccar/geofence/GeofencePolygon.java +++ b/src/org/traccar/geofence/GeofencePolygon.java @@ -27,44 +27,18 @@ public class GeofencePolygon extends GeofenceGeometry { fromWkt(wkt); } - private static class Coordinate { - - public static final double DEGREE360 = 360; - - private double lat; - private double lon; - - public double getLat() { - return lat; - } - - public void setLat(double lat) { - this.lat = lat; - } - - public double getLon() { - return lon; - } - - // Need not to confuse algorithm by the abrupt reset of longitude - public double getLon360() { - return lon + DEGREE360; - } - - public void setLon(double lon) { - this.lon = lon; - } - } - private ArrayList<Coordinate> coordinates; private double[] constant; private double[] multiple; + private boolean needNormalize = false; + private void precalc() { if (coordinates == null) { return; } + int polyCorners = coordinates.size(); int i; int j = polyCorners - 1; @@ -79,38 +53,55 @@ public class GeofencePolygon extends GeofenceGeometry { constant = new double[polyCorners]; multiple = new double[polyCorners]; + boolean hasNegative = false; + boolean hasPositive = false; + for (i = 0; i < polyCorners; i++) { + if (coordinates.get(i).getLon() > 90) { + hasPositive = true; + } else if (coordinates.get(i).getLon() < -90) { + hasNegative = true; + } + } + needNormalize = hasPositive && hasNegative; for (i = 0; i < polyCorners; j = i++) { - if (coordinates.get(j).getLon360() == coordinates.get(i).getLon360()) { + if (normalizeLon(coordinates.get(j).getLon()) == normalizeLon(coordinates.get(i).getLon())) { constant[i] = coordinates.get(i).getLat(); multiple[i] = 0; } else { constant[i] = coordinates.get(i).getLat() - - (coordinates.get(i).getLon360() * coordinates.get(j).getLat()) - / (coordinates.get(j).getLon360() - coordinates.get(i).getLon360()) - + (coordinates.get(i).getLon360() * coordinates.get(i).getLat()) - / (coordinates.get(j).getLon360() - coordinates.get(i).getLon360()); + - (normalizeLon(coordinates.get(i).getLon()) * coordinates.get(j).getLat()) + / (normalizeLon(coordinates.get(j).getLon()) - normalizeLon(coordinates.get(i).getLon())) + + (normalizeLon(coordinates.get(i).getLon()) * coordinates.get(i).getLat()) + / (normalizeLon(coordinates.get(j).getLon()) - normalizeLon(coordinates.get(i).getLon())); multiple[i] = (coordinates.get(j).getLat() - coordinates.get(i).getLat()) - / (coordinates.get(j).getLon360() - coordinates.get(i).getLon360()); + / (normalizeLon(coordinates.get(j).getLon()) - normalizeLon(coordinates.get(i).getLon())); } } } + private double normalizeLon(double lon) { + if (needNormalize && lon < -90) { + return lon + 360; + } + return lon; + } + @Override public boolean containsPoint(double latitude, double longitude) { int polyCorners = coordinates.size(); int i; int j = polyCorners - 1; - double longitude360 = longitude + Coordinate.DEGREE360; + double longitudeNorm = normalizeLon(longitude); boolean oddNodes = false; for (i = 0; i < polyCorners; j = i++) { - if (coordinates.get(i).getLon360() < longitude360 - && coordinates.get(j).getLon360() >= longitude360 - || coordinates.get(j).getLon360() < longitude360 - && coordinates.get(i).getLon360() >= longitude360) { - oddNodes ^= longitude360 * multiple[i] + constant[i] < latitude; + if (normalizeLon(coordinates.get(i).getLon()) < longitudeNorm + && normalizeLon(coordinates.get(j).getLon()) >= longitudeNorm + || normalizeLon(coordinates.get(j).getLon()) < longitudeNorm + && normalizeLon(coordinates.get(i).getLon()) >= longitudeNorm) { + oddNodes ^= longitudeNorm * multiple[i] + constant[i] < latitude; } } return oddNodes; diff --git a/src/org/traccar/geofence/GeofencePolyline.java b/src/org/traccar/geofence/GeofencePolyline.java new file mode 100644 index 000000000..d84f512e3 --- /dev/null +++ b/src/org/traccar/geofence/GeofencePolyline.java @@ -0,0 +1,107 @@ +/* + * Copyright 2016 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 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; + } + +} |