forked from upstream-mirrors/OpenTracks
Dennis Guse
60 lines
2.0 KiB
Java
60 lines
2.0 KiB
Java
/*
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* Copyright 2008 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package de.dennisguse.opentracks.util;
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import android.location.Location;
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/**
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* Utility class for decimating tracks at a given level of precision.
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*
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* @author Leif Hendrik Wilden
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*/
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public class LocationUtils {
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private static final String TAG = LocationUtils.class.getSimpleName();
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// 1 minute in milliseconds
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private static final long MAX_LOCATION_AGE_MS = (long) (UnitConversions.MIN_TO_S * UnitConversions.S_TO_MS);
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private LocationUtils() {
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}
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/**
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* Checks if a given location is a valid (i.e. physically possible) location on Earth.
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* Note: The special separator locations (which have latitude = 100) will not qualify as valid.
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* Neither will locations with lat=0 and lng=0 as these are most likely "bad" measurements which often cause trouble.
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*
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* @param location the location to test
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* @return true if the location is a valid location.
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*/
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//TODO Move to TrackPoint
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@Deprecated //See #316
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public static boolean isValidLocation(Location location) {
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return location != null
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&& Math.abs(location.getLatitude()) <= 90
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&& Math.abs(location.getLongitude()) <= 180;
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}
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/**
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* Returns true if a location is old.
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*
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* @param location the location
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*/
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public static boolean isLocationOld(Location location) {
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return !LocationUtils.isValidLocation(location) || (System.currentTimeMillis() - location.getTime() > MAX_LOCATION_AGE_MS);
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}
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}
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