forked from upstream-mirrors/OpenTracks
Jimmy Shih
54 lines
1.8 KiB
Java
54 lines
1.8 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 com.google.android.apps.mytracks.util;
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/**
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* Utilities for converting units.
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*
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* @author Sandor Dornbush
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*/
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public class UnitConversionUtils {
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private UnitConversionUtils() {}
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// multiplication factor to convert kilometers to miles
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public static final double KM_TO_MI = 0.621371192;
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// multiplication factor to convert miles to kilometers
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public static final double MI_TO_KM = 1 / KM_TO_MI;
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// multiplication factor to convert miles to feet
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public static final double MI_TO_FT = 5280.0;
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// multiplication factor to convert feet to miles
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public static final double FT_TO_MI = 1 / MI_TO_FT;
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// multiplication factor to convert meters to kilometers
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public static final double M_TO_KM = 1 / 1000.0;
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// multiplication factor to convert meters per second to kilometers per hour
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public static final double MS_TO_KMH = M_TO_KM * 60 * 60;
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// multiplication factor to convert meters to miles
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public static final double M_TO_MI = M_TO_KM * KM_TO_MI;
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// multiplication factor to convert meters to feet
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public static final double M_TO_FT = M_TO_MI * MI_TO_FT;
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// multiplication factor to convert degrees to radians
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public static final double DEG_TO_RAD = Math.PI / 180.0;
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}
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