From 59416923dcb3a756eaf532cc4259f2f6625c0762 Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Sun, 31 Mar 2019 22:35:39 -0700 Subject: Convert project to gradle --- src/org/traccar/helper/DistanceCalculator.java | 53 -------------------------- 1 file changed, 53 deletions(-) delete mode 100644 src/org/traccar/helper/DistanceCalculator.java (limited to 'src/org/traccar/helper/DistanceCalculator.java') diff --git a/src/org/traccar/helper/DistanceCalculator.java b/src/org/traccar/helper/DistanceCalculator.java deleted file mode 100644 index 88d4ef8a4..000000000 --- a/src/org/traccar/helper/DistanceCalculator.java +++ /dev/null @@ -1,53 +0,0 @@ -/* - * Copyright 2014 - 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.helper; - -public final class DistanceCalculator { - - private DistanceCalculator() { - } - - private static final double EQUATORIAL_EARTH_RADIUS = 6378.1370; - private static final double DEG_TO_RAD = Math.PI / 180; - - public static double distance(double lat1, double lon1, double lat2, double lon2) { - double dlong = (lon2 - lon1) * DEG_TO_RAD; - double dlat = (lat2 - lat1) * DEG_TO_RAD; - double a = Math.pow(Math.sin(dlat / 2), 2) - + Math.cos(lat1 * DEG_TO_RAD) * Math.cos(lat2 * DEG_TO_RAD) * Math.pow(Math.sin(dlong / 2), 2); - double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a)); - double d = EQUATORIAL_EARTH_RADIUS * c; - return d * 1000; - } - - public static double distanceToLine( - double pointLat, double pointLon, double lat1, double lon1, double lat2, double lon2) { - double d0 = distance(pointLat, pointLon, lat1, lon1); - double d1 = distance(lat1, lon1, lat2, lon2); - double d2 = distance(lat2, lon2, pointLat, pointLon); - if (Math.pow(d0, 2) > Math.pow(d1, 2) + Math.pow(d2, 2)) { - return d2; - } - if (Math.pow(d2, 2) > Math.pow(d1, 2) + Math.pow(d0, 2)) { - return d0; - } - double halfP = (d0 + d1 + d2) * 0.5; - double area = Math.sqrt(halfP * (halfP - d0) * (halfP - d1) * (halfP - d2)); - return 2 * area / d1; - } - -} -- cgit v1.2.3