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-rw-r--r--src/org/traccar/geofence/GeofenceCircle.java94
-rw-r--r--src/org/traccar/geofence/GeofenceGeometry.java28
-rw-r--r--src/org/traccar/geofence/GeofencePolygon.java173
3 files changed, 295 insertions, 0 deletions
diff --git a/src/org/traccar/geofence/GeofenceCircle.java b/src/org/traccar/geofence/GeofenceCircle.java
new file mode 100644
index 000000000..a36620aec
--- /dev/null
+++ b/src/org/traccar/geofence/GeofenceCircle.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2016 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * 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.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() {
+ }
+
+ public GeofenceCircle(String wkt) throws ParseException {
+ fromWkt(wkt);
+ }
+
+ public GeofenceCircle(double latitude, double longitude, double radius) {
+ 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);
+ }
+ }
+}
diff --git a/src/org/traccar/geofence/GeofenceGeometry.java b/src/org/traccar/geofence/GeofenceGeometry.java
new file mode 100644
index 000000000..e717ede0b
--- /dev/null
+++ b/src/org/traccar/geofence/GeofenceGeometry.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2016 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * 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;
+
+public abstract class GeofenceGeometry {
+
+ public abstract boolean containsPoint(double latitude, double longitude);
+
+ public abstract String toWkt();
+
+ public abstract void fromWkt(String wkt) throws ParseException;
+
+}
diff --git a/src/org/traccar/geofence/GeofencePolygon.java b/src/org/traccar/geofence/GeofencePolygon.java
new file mode 100644
index 000000000..be5f971a5
--- /dev/null
+++ b/src/org/traccar/geofence/GeofencePolygon.java
@@ -0,0 +1,173 @@
+/*
+ * Copyright 2016 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * 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;
+
+public class GeofencePolygon extends GeofenceGeometry {
+
+ public GeofencePolygon() {
+ }
+
+ public GeofencePolygon(String wkt) throws ParseException {
+ 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 void precalc() {
+ if (coordinates == null) {
+ return;
+ }
+ int polyCorners = coordinates.size();
+ int i;
+ int j = polyCorners - 1;
+
+ if (constant != null) {
+ constant = null;
+ }
+ if (multiple != null) {
+ multiple = null;
+ }
+
+ constant = new double[polyCorners];
+ multiple = new double[polyCorners];
+
+
+ for (i = 0; i < polyCorners; j = i++) {
+ if (coordinates.get(j).getLon360() == coordinates.get(i).getLon360()) {
+ 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());
+ multiple[i] = (coordinates.get(j).getLat() - coordinates.get(i).getLat())
+ / (coordinates.get(j).getLon360() - coordinates.get(i).getLon360());
+ }
+ }
+ }
+
+ @Override
+ public boolean containsPoint(double latitude, double longitude) {
+
+ int polyCorners = coordinates.size();
+ int i;
+ int j = polyCorners - 1;
+ double longitude360 = longitude + Coordinate.DEGREE360;
+ 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;
+ }
+ }
+ return oddNodes;
+ }
+
+ @Override
+ public String toWkt() {
+ StringBuffer buf = new StringBuffer();
+ buf.append("POLYGON (");
+ 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<Coordinate>();
+ } else {
+ coordinates.clear();
+ }
+
+ if (!wkt.startsWith("POLYGON")) {
+ 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 < 3) {
+ 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);
+ }
+ precalc();
+ }
+
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 17:23:38 +0000