00001 #ifndef GSGL_MATH_UNITS_H 00002 #define GSGL_MATH_UNITS_H 00003 00004 // 00005 // $Id: units.hpp 2 2008-03-01 20:58:50Z kulibali $ 00006 // 00007 // Copyright (c) 2008, The Periapsis Project. All rights reserved. 00008 // 00009 // Redistribution and use in source and binary forms, with or without 00010 // modification, are permitted provided that the following conditions are 00011 // met: 00012 // 00013 // * Redistributions of source code must retain the above copyright notice, 00014 // this list of conditions and the following disclaimer. 00015 // 00016 // * Redistributions in binary form must reproduce the above copyright 00017 // notice, this list of conditions and the following disclaimer in the 00018 // documentation and/or other materials provided with the distribution. 00019 // 00020 // * Neither the name of the The Periapsis Project nor the names of its 00021 // contributors may be used to endorse or promote products derived from 00022 // this software without specific prior written permission. 00023 // 00024 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 00025 // IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 00026 // TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 00027 // PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 00028 // OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00029 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00030 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00031 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00032 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00033 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00034 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00035 // 00036 00037 #include "math/math.hpp" 00038 00039 namespace gsgl 00040 { 00041 00042 class string; 00043 00044 namespace math 00045 { 00046 00047 namespace units 00048 { 00049 00050 extern MATH_API const gsgl::real_t METERS_PER_MILLIMETER; // meters / millimeter 00051 extern MATH_API const gsgl::real_t METERS_PER_CENTIMETER; // meters / centimeter 00052 extern MATH_API const gsgl::real_t METERS_PER_METER; // meters / meter 00053 extern MATH_API const gsgl::real_t METERS_PER_KILOMETER; // meters / kilometer 00054 extern MATH_API const gsgl::real_t METERS_PER_AU; // meters / au 00055 extern MATH_API const gsgl::real_t METERS_PER_PARSEC; // meters / parsec 00056 00057 extern MATH_API const gsgl::real_t KILOGRAMS_PER_MILLIGRAM; // kilograms / milligram 00058 extern MATH_API const gsgl::real_t KILOGRAMS_PER_GRAM; // kilograms / gram 00059 extern MATH_API const gsgl::real_t KILOGRAMS_PER_KILOGRAM; // kilograms / kilogram 00060 00061 extern MATH_API const gsgl::real_t SECONDS_PER_MILLISECOND;// seconds / millisecond 00062 extern MATH_API const gsgl::real_t SECONDS_PER_SECOND; // seconds / second 00063 extern MATH_API const gsgl::real_t SECONDS_PER_MINUTE; // seconds / minute 00064 extern MATH_API const gsgl::real_t SECONDS_PER_HOUR; // seconds / hour 00065 extern MATH_API const gsgl::real_t SECONDS_PER_DAY; // seconds / day 00066 extern MATH_API const gsgl::real_t SECONDS_PER_YEAR; // seconds / year 00067 00068 extern MATH_API gsgl::real_t parse(const gsgl::string &); 00069 00070 } // namespace units 00071 00072 } // namespace units 00073 00074 } // namespace gsgl 00075 00076 #endif
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