9.6.p02/html/set_system_of_units_8cc_source.html

// -*- C++ -*-

// $Id:$

// ----------------------------------------------------------------------


#include "CLHEP/Evaluator/Evaluator.h"


namespace HepTool {


void Evaluator::setSystemOfUnits(double meter,

                 double kilogram,

                 double second,

                 double ampere,

                 double kelvin,

                 double mole,

                 double candela)

{

  const double kilo_  = 1.e+03; // chilioi (Greek) "thousand"

  const double mega_  = 1.e+06; // megas (Greek) "large"

  const double giga_  = 1.e+09; // gigas (Greek) "giant"

  const double tera_  = 1.e+12; // teras (Greek) "monster"

  const double peta_  = 1.e+15; // pente (Greek) "five"


  const double deci_  = 1.e-01; // decimus (Latin) "tenth"

  const double centi_ = 1.e-02; // centum  (Latin) "hundred"

  const double milli_ = 1.e-03; // mille   (Latin) "thousand"

  const double micro_ = 1.e-06; // micro (Latin) or mikros (Greek) "small"

  const double nano_  = 1.e-09; // nanus (Latin) or nanos  (Greek) "dwarf"

  const double pico_  = 1.e-12; // pico (Spanish) "bit"


  // ======================================================================

  //

  // Base (default) SI units

  // for the basic measurable quantities (dimensions):

  //

  // ======================================================================


  // Length

  // metrum (Latin) and metron (Greek) "measure"

  const double m = meter;

  setVariable("meter", m);

  setVariable("metre", m);

  setVariable("m",     m);


  // Mass

  const double kg = kilogram;

  setVariable("kilogram", kg);

  setVariable("kg",       kg);


  // Time

  // minuta secundam (Latin) "second small one"

  const double s = second;

  setVariable("second", s);

  setVariable("s",      s);


  // Current

  // ---  honors Andre-Marie Ampere (1775-1836) of France

  const double A = ampere;

  setVariable("ampere", A);

  setVariable("amp",    A);

  setVariable("A",      A);


  // Temperature

  // ---  honors William Thomson, 1st Baron Lord Kelvin (1824-1907) of England

  const double K = kelvin;

  setVariable("kelvin", K);

  setVariable("K",      K);


  // Amount of substance

  const double mol = mole;

  setVariable("mole", mol);

  setVariable("mol",  mol);


  // Luminous intensity

  const double cd  = candela;

  setVariable("candela", cd);

  setVariable("cd",      cd);


  // ======================================================================

  //

  // Supplementary SI units having special symbols:

  //

  // ======================================================================


  // Plane angle

  const double rad = 1.;

  setVariable("radian", rad);

  setVariable("rad",    rad);

  setVariable("milliradian", milli_ * rad);

  setVariable("mrad",        milli_ * rad);


  const double pi  = 3.14159265358979323846;

  const double deg = rad*pi/180.;

  setVariable("degree", deg);

  setVariable("deg",    deg);


  // Solid angle

  const double sr  = 1.;

  setVariable("steradian", sr);

  setVariable("sr",        sr);


  // ======================================================================

  //

  // Derived SI units having special symbols:

  //

  // ======================================================================


  // Frequency

  // ---  honors Heinrich Rudolf Hertz (1857-1894) of Germany

  const double Hz = 1./s;

  setVariable("hertz", Hz);

  setVariable("Hz",    Hz);


  // Force

  // ---  honors Sir Isaac Newton (1642-1727) of England

  const double N = m * kg / (s*s);

  setVariable("newton", N);

  setVariable("N",      N);


  // Pressure

  // ---  honors Blaise Pascal (1623-1662) of France

  const double Pa = N / (m*m);

  setVariable("pascal", Pa);

  setVariable("Pa",     Pa);


  const double atm = 101325. * Pa;

  setVariable("atmosphere", atm);

  setVariable("atm",        atm);


  const double bar = 100000*Pa;

  setVariable("bar", bar);


  // Energy

  // ---  honors James Prescott Joule (1818-1889) of England

  const double J = N * m;

  setVariable("joule", J);

  setVariable("J",     J);


  // Power

  // ---  honors James Watt (1736-1819) of Scotland

  const double W = J / s;

  setVariable("watt", W);

  setVariable("W",    W);


  // Electric charge

  // ---  honors Charles-Augustin de Coulomb (1736-1806) of France

  const double C = A * s;

  setVariable("coulomb", C);

  setVariable("C",       C);


  // Electric potential

  // ---  honors Count Alessandro Volta (1745-1827) of Italy

  const double V = J / C;

  setVariable("volt", V);

  setVariable("V",    V);


  // Electric resistance

  // ---  honors Georg Simon Ohm (1787-1854) of Germany

  const double ohm = V / A;

  setVariable("ohm", ohm);


  // Electric conductance

  // ---  honors Ernst Werner von Siemens (1816-1892) or

  //      his brother Sir William (Karl Wilhelm von) Siemens (1823-1883)

  //      of Germany (England)

  const double S = 1./ ohm;

  setVariable("siemens", S);

  setVariable("S",       S);


  // Electric capacitance

  // ---  honors Michael Faraday (1791-1867) of England

  const double F = C / V;

  setVariable("farad", F);

  setVariable("F",     F);


  // Magnetic flux density

  // ---  honors Nikola Tesla (1856-1943) of Croatia (United States)

  const double T = V * s / (m*m);

  setVariable("tesla", T);

  setVariable("T",     T);


  // ---  honors Karl Friedrich Gauss (1777-1855) of Germany

  const double Gs = 1.e-4*T;

  setVariable("gauss", Gs);

  setVariable("Gs",    Gs);


  // Magnetic flux

  // ---  honors Wilhelm Eduard Weber (1804-1891) of Germany

  const double Wb = V * s;

  setVariable("weber", Wb);

  setVariable("Wb",    Wb);


  // Inductance

  // ---  honors Joseph Henry (1797-1878) of the United States

  const double H = Wb / A;

  setVariable("henry", H);

  setVariable("H",     H);


  // Luminous flux

  const double lm = cd * sr;

  setVariable("lumen", lm);

  setVariable("lm",    lm);


  // Illuminace

  const double lx = lm / (m*m);

  setVariable("lux", lx);

  setVariable("lx",  lx);


  // Radioactivity

  // ---  honors Antoine-Henri Becquerel (1852-1908) of France

  const double Bq = 1./s;

  setVariable("becquerel", Bq);

  setVariable("Bq",        Bq);


  // ---  honors Pierre Curie (1859-1906) of France

  //      and Marie Sklodowska Curie (1867-1934) of Poland

  setVariable("curie", 3.7e+10 * Bq);

  setVariable("Ci",    3.7e+10 * Bq);


  // Specific energy

  // ---  honors Louis Harold Gray, F.R.S. (1905-1965) of England

  const double Gy = J / kg;

  setVariable("gray", Gy);

  setVariable("Gy",   Gy);


  // Dose equivalent

  const double Sv = J / kg;

  setVariable("sievert", Sv);

  setVariable("Sv",      Sv);


  // ======================================================================

  //

  // Selected units:

  //

  // ======================================================================


  // Length


  const double mm = milli_ * m;

  setVariable("millimeter", mm);

  setVariable("mm",         mm);


  const double cm = centi_ * m;

  setVariable("centimeter", cm);

  setVariable("cm",         cm);


  setVariable("decimeter",  deci_ * m);


  const double km = kilo_ * m;

  setVariable("kilometer",  km);

  setVariable("km",         km);


  setVariable("micrometer", micro_ * m);

  setVariable("micron",     micro_ * m);

  setVariable("nanometer",  nano_  * m);


  // ---  honors Anders Jonas Angstrom (1814-1874) of Sweden

  setVariable("angstrom",   1.e-10 * m);


  // ---  honors Enrico Fermi (1901-1954) of Italy

  setVariable("fermi",      1.e-15 * m);


  // Length^2


  setVariable("m2",  m*m);

  setVariable("mm2", mm*mm);

  setVariable("cm2", cm*cm);

  setVariable("km2", km*km);


  const double barn = 1.e-28 * m*m;

  setVariable("barn",      barn);

  setVariable("millibarn", milli_ * barn);

  setVariable("mbarn",     milli_ * barn);

  setVariable("microbarn", micro_ * barn);

  setVariable("nanobarn",  nano_  * barn);

  setVariable("picobarn",  pico_  * barn);


  // LengthL^3


  setVariable("m3",  m*m*m);

  setVariable("mm3", mm*mm*mm);

  setVariable("cm3", cm*cm*cm);

  setVariable("cc",  cm*cm*cm);

  setVariable("km3", km*km*km);


  const double L = 1.e-3*m*m*m;

  setVariable("liter", L);

  setVariable("litre", L);

  setVariable("L",     L);

  setVariable("centiliter",  centi_ * L);

  setVariable("cL",          centi_ * L);

  setVariable("milliliter",  milli_ * L);

  setVariable("mL",          milli_ * L);


  // Length^-1


  const double dpt = 1./m;

  setVariable("diopter", dpt);

  setVariable("dioptre", dpt);

  setVariable("dpt",     dpt);


  // Mass


  const double g = 0.001*kg;

  setVariable("gram", g);

  setVariable("g",    g);

  setVariable("milligram",   milli_ * g);

  setVariable("mg",          milli_ * g);


  // Time


  setVariable("millisecond", milli_ * s);

  setVariable("ms",          milli_ * s);

  setVariable("microsecond", micro_ * s);

  setVariable("nanosecond",  nano_  * s);

  setVariable("ns",          nano_  * s);

  setVariable("picosecond",  pico_  * s);


  // Current


  setVariable("milliampere", milli_ * A);

  setVariable("mA",          milli_ * A);

  setVariable("microampere", micro_ * A);

  setVariable("nanoampere",  nano_  * A);


  // Frequency


  setVariable("kilohertz",   kilo_ * Hz);

  setVariable("kHz",         kilo_ * Hz);

  setVariable("megahertz",   mega_ * Hz);

  setVariable("MHz",         mega_ * Hz);


  // Force

  setVariable("kilonewton",  kilo_ * N);

  setVariable("kN",          kilo_ * N);


  // Pressure

  setVariable("kilobar",     kilo_ * bar);

  setVariable("kbar",        kilo_ * bar);

  setVariable("millibar",    milli_ * bar);

  setVariable("mbar",        milli_ * bar);


  // Energy

  setVariable("kilojoule",   kilo_ * J);

  setVariable("kJ",          kilo_ * J);

  setVariable("megajoule",   mega_ * J);

  setVariable("MJ",          mega_ * J);

  setVariable("gigajoule",   giga_ * J);

  setVariable("GJ",          giga_ * J);


  const double e_SI  = 1.60217733e-19;  // positron charge in coulomb

  const double ePlus = e_SI * C;        // positron charge

  const double eV    = ePlus * V;

  setVariable("electronvolt", eV);

  setVariable("eV",           eV);

  setVariable("kiloelectronvolt", kilo_ * eV);

  setVariable("keV",              kilo_ * eV);

  setVariable("megaelectronvolt", mega_ * eV);

  setVariable("MeV",              mega_ * eV);

  setVariable("gigaelectronvolt", giga_ * eV);

  setVariable("GeV",              giga_ * eV);

  setVariable("teraelectronvolt", tera_ * eV);

  setVariable("TeV",              tera_ * eV);

  setVariable("petaelectronvolt", peta_ * eV);

  setVariable("PeV",              peta_ * eV);


  // Power

  setVariable("kilowatt",    kilo_ * W);

  setVariable("kW",          kilo_ * W);

  setVariable("megawatt",    mega_ * W);

  setVariable("MW",          mega_ * W);

  setVariable("gigawatt",    giga_ * W);

  setVariable("GW",          giga_ * W);


  // Electric potential

  setVariable("kilovolt",    kilo_ * V);

  setVariable("kV",          kilo_ * V);

  setVariable("megavolt",    mega_ * V);

  setVariable("MV",          mega_ * V);


  // Electric capacitance

  setVariable("millifarad",  milli_ * F);

  setVariable("mF",          milli_ * F);

  setVariable("microfarad",  micro_ * F);

  setVariable("uF",          micro_ * F);

  setVariable("nanofarad",   nano_  * F);

  setVariable("nF",          nano_  * F);

  setVariable("picofarad",   pico_  * F);

  setVariable("pF",          pico_  * F);


  // Magnetic flux density

  setVariable("kilogauss",   kilo_ * Gs);

  setVariable("kGs",         kilo_ * Gs);

}


} // namespace HepTool