1.5.1-p1
00001 00002 /*============================================================================= 00003 physical quantities / units / constants 00004 Copyright (c) 2006, 2007 Martin Schulz 00005 http://physical.sourceforge.net 00006 00007 This is private code by Martin Schulz. 00008 00009 Use, modification and distribution is subject to the Boost Software 00010 License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at 00011 http://www.boost.org/LICENSE_1_0.txt) 00012 =============================================================================*/ 00013 00014 #ifndef PHYSICAL_UNIT 00015 #define PHYSICAL_UNIT 00016 00017 #include "physical/quantity.hpp" 00018 #include "physical/dynamicunit.hpp" 00019 #include "physical/dynamicphysical.hpp" 00020 00021 namespace physical { 00022 00023 namespace unit_si_double { typedef double real; namespace quantity=quantity_si_double; }; 00024 namespace unit_si_float { typedef float real; namespace quantity=quantity_si_float; }; 00025 00026 #define UNIT0(AAA) namespace unit_si_double { AAA; }; namespace unit_si_float { AAA; }; 00027 00028 00029 UNIT0( const static double pi=3.14 ); // FIXME what header file do I need here?.. 00030 00031 // todo: additional types 00032 // baseunit only default-ctor=1; 00033 // derivedunit only conversion c'tor from other entities.. 00034 00035 // statically predefined SI base units : (from table 1) 00036 UNIT0( const static quantity::scalar unity(1) ); // not really a SI unit but nevertheless... 00037 UNIT0( const static quantity::length meter(1) ); 00038 UNIT0( const static quantity::mass kilogram(1) ); 00039 UNIT0( const static quantity::time second(1) ); 00040 UNIT0( const static quantity::electric_current ampere(1) ); 00041 UNIT0( const static quantity::temperature kelvin(1) ); 00042 UNIT0( const static quantity::amount_of_substance mol(1) ); 00043 UNIT0( const static quantity::amount_of_substance mole(1) ); 00044 UNIT0( const static quantity::luminous_intensity candela(1) ); 00045 00046 // some statically predefined SI derived units: (from table 2) 00047 UNIT0( const static quantity::area square_meter = meter*meter ); 00048 UNIT0( const static quantity::volume cubic_meter = meter*meter*meter ); 00049 UNIT0( const static quantity::velocity meter_per_second = meter/second ); 00050 UNIT0( const static quantity::acceleration meter_per_second_squared = meter/(second*second) ); 00051 UNIT0( const static quantity::wave_number reciprocal_meter = unity/meter ); 00052 UNIT0( const static quantity::mass_density kilogram_per_cubic_meter = kilogram/cubic_meter ); 00053 UNIT0( const static quantity::specific_volume cubic_meter_per_kilogram = cubic_meter/kilogram ); 00054 UNIT0( const static quantity::current_density ampere_per_square_meter = ampere/square_meter ); 00055 UNIT0( const static quantity::magnetic_field_strength ampere_per_meter = ampere/meter ); 00056 UNIT0( const static quantity::amount_of_substance_concentration mole_per_cubic_meter = mol/cubic_meter ); 00057 UNIT0( const static quantity::luminance candela_per_square_meter = candela/square_meter ); 00058 UNIT0( const static quantity::mass_fraction kilogram_per_kilogram = kilogram/kilogram ); 00059 00060 // SI derived units with special names (from table 3) 00061 UNIT0( const static quantity::plane_angle radian = meter/meter ); 00062 UNIT0( const static quantity::solid_angle steradian = square_meter/square_meter ); 00063 UNIT0( const static quantity::frequency hertz = unity/second ); 00064 UNIT0( const static quantity::force newton = meter*kilogram/(second*second) ); 00065 UNIT0( const static quantity::pressure Pascal = newton/square_meter ); 00066 UNIT0( const static quantity::energy joule = newton*meter ); 00067 UNIT0( const static quantity::power watt = joule/second ); 00068 UNIT0( const static quantity::electric_charge coulomb = second*ampere ); 00069 UNIT0( const static quantity::electric_potential_difference volt = watt/ampere ); 00070 UNIT0( const static quantity::capacitance farad = coulomb/volt ); 00071 UNIT0( const static quantity::electric_resistance ohm = volt/ampere ); 00072 UNIT0( const static quantity::electric_conductance siemens = ampere/volt ); 00073 UNIT0( const static quantity::magnetic_flux weber = volt*second ); 00074 UNIT0( const static quantity::magnetic_flux_density tesla = weber/square_meter ); 00075 UNIT0( const static quantity::inductance henry = weber/ampere ); 00076 UNIT0( const static quantity::luminous_flux lumen = candela*steradian ); 00077 UNIT0( const static quantity::illuminance lux = lumen/square_meter ); 00078 UNIT0( const static quantity::activity_of_a_radionuclide becquerel = unity/second ); 00079 UNIT0( const static quantity::absorbed_dose gray = joule/kilogram ); 00080 UNIT0( const static quantity::dose_equivalent sievert = joule/kilogram ); 00081 UNIT0( const static quantity::catalytic_activity katal = mol/second ); 00082 00083 // some statically predefinded non-base units: 00084 UNIT0( const static quantity::length centimeter = (real)0.01*meter ); 00085 UNIT0( const static quantity::length millimeter = (real)0.001*meter ); 00086 UNIT0( const static quantity::length kilometer = (real)1000*meter ); 00087 UNIT0( const static quantity::mass gram = (real)0.001*kilogram ); 00088 UNIT0( const static quantity::time minute = (real)60*second ); 00089 UNIT0( const static quantity::time hour = (real)60*minute ); 00090 UNIT0( const static quantity::plane_angle revolution = (real)(2*pi)*radian ); 00091 UNIT0( const static quantity::angular_velocity revolution_per_second = revolution/second ); 00092 UNIT0( const static quantity::angular_velocity revolution_per_minute = revolution/minute ); 00093 00094 // some predefined dynamic units: 00095 00096 /* the temperature units in common use by humans do not have the same origin from 00097 the thermodynamic temperature measured in Kelvin. */ 00098 UNIT0( const static DynamicUnit<quantity::system> celsius(unit_si_double::kelvin, physical::detail::DynamicScale(1., 273.15)) ); 00099 UNIT0( const static DynamicUnit<quantity::system> fahrenheit(celsius, physical::detail::DynamicScale(5./9., -5./9.*32)) ); 00100 UNIT0( const static DynamicUnit<quantity::system> reaumur(celsius, physical::detail::DynamicScale(5./4., 0.)) ); 00101 00102 #undef UNIT0 00103 00104 00105 }; // namespace physical 00106 00107 #endif
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