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author | Anton Tananaev <anton.tananaev@gmail.com> | 2016-06-18 11:56:59 +1200 |
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committer | GitHub <noreply@github.com> | 2016-06-18 11:56:59 +1200 |
commit | b3b0cd9d6f2d26cef2e64ef38e23203f1f3fa51a (patch) | |
tree | 2e8deb61d372095aebb8270f740501c8124ea8c4 /src/org/traccar/geofence/GeofenceCircle.java | |
parent | d801cba474cd05bb088348f04e8557ca638cd74f (diff) | |
parent | 82a78ff77a076231a8429f0dd84678d61c31d44a (diff) | |
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Merge pull request #2012 from Abyss777/master
Implement Geofences on server side
Diffstat (limited to 'src/org/traccar/geofence/GeofenceCircle.java')
-rw-r--r-- | src/org/traccar/geofence/GeofenceCircle.java | 94 |
1 files changed, 94 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); + } + } +} |