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Diffstat (limited to 'src/main/java/org/unitConverter/unit/SI.java')
| -rw-r--r-- | src/main/java/org/unitConverter/unit/SI.java | 479 |
1 files changed, 479 insertions, 0 deletions
diff --git a/src/main/java/org/unitConverter/unit/SI.java b/src/main/java/org/unitConverter/unit/SI.java new file mode 100644 index 0000000..81736f3 --- /dev/null +++ b/src/main/java/org/unitConverter/unit/SI.java @@ -0,0 +1,479 @@ +/** + * Copyright (C) 2018 Adrien Hopkins + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ +package org.unitConverter.unit; + +import java.util.Set; + +import org.unitConverter.math.ObjectProduct; + +/** + * All of the units, prefixes and dimensions that are used by the SI, as well as + * some outside the SI. + * + * <p> + * This class does not include prefixed units. To obtain prefixed units, use + * {@link LinearUnit#withPrefix}: + * + * <pre> + * LinearUnit KILOMETRE = SI.METRE.withPrefix(SI.KILO); + * </pre> + * + * + * @author Adrien Hopkins + * @since 2019-10-16 + */ +public final class SI { + /// dimensions used by SI units + // base dimensions, as BaseDimensions + public static final class BaseDimensions { + public static final BaseDimension LENGTH = BaseDimension.valueOf("Length", + "L"); + public static final BaseDimension MASS = BaseDimension.valueOf("Mass", + "M"); + public static final BaseDimension TIME = BaseDimension.valueOf("Time", + "T"); + public static final BaseDimension ELECTRIC_CURRENT = BaseDimension + .valueOf("Electric Current", "I"); + public static final BaseDimension TEMPERATURE = BaseDimension + .valueOf("Temperature", "\u0398"); // theta symbol + public static final BaseDimension QUANTITY = BaseDimension + .valueOf("Quantity", "N"); + public static final BaseDimension LUMINOUS_INTENSITY = BaseDimension + .valueOf("Luminous Intensity", "J"); + public static final BaseDimension INFORMATION = BaseDimension + .valueOf("Information", "Info"); // non-SI + public static final BaseDimension CURRENCY = BaseDimension + .valueOf("Currency", "$$"); // non-SI + + // You may NOT get SI.BaseDimensions instances! + private BaseDimensions() { + throw new AssertionError(); + } + } + + /// base units of the SI + // suppressing warnings since these are the same object, but in a different + /// form (class) + @SuppressWarnings("hiding") + public static final class BaseUnits { + public static final BaseUnit METRE = BaseUnit + .valueOf(BaseDimensions.LENGTH, "metre", "m"); + public static final BaseUnit KILOGRAM = BaseUnit + .valueOf(BaseDimensions.MASS, "kilogram", "kg"); + public static final BaseUnit SECOND = BaseUnit + .valueOf(BaseDimensions.TIME, "second", "s"); + public static final BaseUnit AMPERE = BaseUnit + .valueOf(BaseDimensions.ELECTRIC_CURRENT, "ampere", "A"); + public static final BaseUnit KELVIN = BaseUnit + .valueOf(BaseDimensions.TEMPERATURE, "kelvin", "K"); + public static final BaseUnit MOLE = BaseUnit + .valueOf(BaseDimensions.QUANTITY, "mole", "mol"); + public static final BaseUnit CANDELA = BaseUnit + .valueOf(BaseDimensions.LUMINOUS_INTENSITY, "candela", "cd"); + public static final BaseUnit BIT = BaseUnit + .valueOf(BaseDimensions.INFORMATION, "bit", "b"); + public static final BaseUnit DOLLAR = BaseUnit + .valueOf(BaseDimensions.CURRENCY, "dollar", "$"); + + public static final Set<BaseUnit> BASE_UNITS = Set.of(METRE, KILOGRAM, + SECOND, AMPERE, KELVIN, MOLE, CANDELA, BIT); + + // You may NOT get SI.BaseUnits instances! + private BaseUnits() { + throw new AssertionError(); + } + } + + /** + * Constants that relate to the SI or other systems. + * + * @author Adrien Hopkins + * @since 2019-11-08 + */ + public static final class Constants { + public static final LinearUnit EARTH_GRAVITY = METRE.dividedBy(SECOND) + .dividedBy(SECOND).times(9.80665); + } + + // dimensions used in the SI, as ObjectProducts + public static final class Dimensions { + public static final ObjectProduct<BaseDimension> EMPTY = ObjectProduct + .empty(); + public static final ObjectProduct<BaseDimension> LENGTH = ObjectProduct + .oneOf(BaseDimensions.LENGTH); + public static final ObjectProduct<BaseDimension> MASS = ObjectProduct + .oneOf(BaseDimensions.MASS); + public static final ObjectProduct<BaseDimension> TIME = ObjectProduct + .oneOf(BaseDimensions.TIME); + public static final ObjectProduct<BaseDimension> ELECTRIC_CURRENT = ObjectProduct + .oneOf(BaseDimensions.ELECTRIC_CURRENT); + public static final ObjectProduct<BaseDimension> TEMPERATURE = ObjectProduct + .oneOf(BaseDimensions.TEMPERATURE); + public static final ObjectProduct<BaseDimension> QUANTITY = ObjectProduct + .oneOf(BaseDimensions.QUANTITY); + public static final ObjectProduct<BaseDimension> LUMINOUS_INTENSITY = ObjectProduct + .oneOf(BaseDimensions.LUMINOUS_INTENSITY); + public static final ObjectProduct<BaseDimension> INFORMATION = ObjectProduct + .oneOf(BaseDimensions.INFORMATION); + public static final ObjectProduct<BaseDimension> CURRENCY = ObjectProduct + .oneOf(BaseDimensions.CURRENCY); + + // derived dimensions without named SI units + public static final ObjectProduct<BaseDimension> AREA = LENGTH + .times(LENGTH); + public static final ObjectProduct<BaseDimension> VOLUME = AREA + .times(LENGTH); + public static final ObjectProduct<BaseDimension> VELOCITY = LENGTH + .dividedBy(TIME); + public static final ObjectProduct<BaseDimension> ACCELERATION = VELOCITY + .dividedBy(TIME); + public static final ObjectProduct<BaseDimension> WAVENUMBER = EMPTY + .dividedBy(LENGTH); + public static final ObjectProduct<BaseDimension> MASS_DENSITY = MASS + .dividedBy(VOLUME); + public static final ObjectProduct<BaseDimension> SURFACE_DENSITY = MASS + .dividedBy(AREA); + public static final ObjectProduct<BaseDimension> SPECIFIC_VOLUME = VOLUME + .dividedBy(MASS); + public static final ObjectProduct<BaseDimension> CURRENT_DENSITY = ELECTRIC_CURRENT + .dividedBy(AREA); + public static final ObjectProduct<BaseDimension> MAGNETIC_FIELD_STRENGTH = ELECTRIC_CURRENT + .dividedBy(LENGTH); + public static final ObjectProduct<BaseDimension> CONCENTRATION = QUANTITY + .dividedBy(VOLUME); + public static final ObjectProduct<BaseDimension> MASS_CONCENTRATION = CONCENTRATION + .times(MASS); + public static final ObjectProduct<BaseDimension> LUMINANCE = LUMINOUS_INTENSITY + .dividedBy(AREA); + public static final ObjectProduct<BaseDimension> REFRACTIVE_INDEX = VELOCITY + .dividedBy(VELOCITY); + public static final ObjectProduct<BaseDimension> REFRACTIVE_PERMEABILITY = EMPTY + .times(EMPTY); + public static final ObjectProduct<BaseDimension> ANGLE = LENGTH + .dividedBy(LENGTH); + public static final ObjectProduct<BaseDimension> SOLID_ANGLE = AREA + .dividedBy(AREA); + + // derived dimensions with named SI units + public static final ObjectProduct<BaseDimension> FREQUENCY = EMPTY + .dividedBy(TIME); + public static final ObjectProduct<BaseDimension> FORCE = MASS + .times(ACCELERATION); + public static final ObjectProduct<BaseDimension> ENERGY = FORCE + .times(LENGTH); + public static final ObjectProduct<BaseDimension> POWER = ENERGY + .dividedBy(TIME); + public static final ObjectProduct<BaseDimension> ELECTRIC_CHARGE = ELECTRIC_CURRENT + .times(TIME); + public static final ObjectProduct<BaseDimension> VOLTAGE = ENERGY + .dividedBy(ELECTRIC_CHARGE); + public static final ObjectProduct<BaseDimension> CAPACITANCE = ELECTRIC_CHARGE + .dividedBy(VOLTAGE); + public static final ObjectProduct<BaseDimension> ELECTRIC_RESISTANCE = VOLTAGE + .dividedBy(ELECTRIC_CURRENT); + public static final ObjectProduct<BaseDimension> ELECTRIC_CONDUCTANCE = ELECTRIC_CURRENT + .dividedBy(VOLTAGE); + public static final ObjectProduct<BaseDimension> MAGNETIC_FLUX = VOLTAGE + .times(TIME); + public static final ObjectProduct<BaseDimension> MAGNETIC_FLUX_DENSITY = MAGNETIC_FLUX + .dividedBy(AREA); + public static final ObjectProduct<BaseDimension> INDUCTANCE = MAGNETIC_FLUX + .dividedBy(ELECTRIC_CURRENT); + public static final ObjectProduct<BaseDimension> LUMINOUS_FLUX = LUMINOUS_INTENSITY + .times(SOLID_ANGLE); + public static final ObjectProduct<BaseDimension> ILLUMINANCE = LUMINOUS_FLUX + .dividedBy(AREA); + public static final ObjectProduct<BaseDimension> SPECIFIC_ENERGY = ENERGY + .dividedBy(MASS); + public static final ObjectProduct<BaseDimension> CATALYTIC_ACTIVITY = QUANTITY + .dividedBy(TIME); + + // You may NOT get SI.Dimension instances! + private Dimensions() { + throw new AssertionError(); + } + } + + /// The units of the SI + public static final LinearUnit ONE = LinearUnit + .valueOf(ObjectProduct.empty(), 1); + + public static final LinearUnit METRE = BaseUnits.METRE.asLinearUnit() + .withName(NameSymbol.of("metre", "m", "meter")); + public static final LinearUnit KILOGRAM = BaseUnits.KILOGRAM.asLinearUnit() + .withName(NameSymbol.of("kilogram", "kg")); + public static final LinearUnit SECOND = BaseUnits.SECOND.asLinearUnit() + .withName(NameSymbol.of("second", "s", "sec")); + public static final LinearUnit AMPERE = BaseUnits.AMPERE.asLinearUnit() + .withName(NameSymbol.of("ampere", "A")); + public static final LinearUnit KELVIN = BaseUnits.KELVIN.asLinearUnit() + .withName(NameSymbol.of("kelvin", "K")); + public static final LinearUnit MOLE = BaseUnits.MOLE.asLinearUnit() + .withName(NameSymbol.of("mole", "mol")); + public static final LinearUnit CANDELA = BaseUnits.CANDELA.asLinearUnit() + .withName(NameSymbol.of("candela", "cd")); + public static final LinearUnit BIT = BaseUnits.BIT.asLinearUnit() + .withName(NameSymbol.of("bit", "b")); + public static final LinearUnit DOLLAR = BaseUnits.DOLLAR.asLinearUnit() + .withName(NameSymbol.of("dollar", "$")); + // Non-base units + public static final LinearUnit RADIAN = METRE.dividedBy(METRE) + .withName(NameSymbol.of("radian", "rad")); + + public static final LinearUnit STERADIAN = RADIAN.times(RADIAN) + .withName(NameSymbol.of("steradian", "sr")); + public static final LinearUnit HERTZ = ONE.dividedBy(SECOND) + .withName(NameSymbol.of("hertz", "Hz")); + // for periodic phenomena + public static final LinearUnit NEWTON = KILOGRAM.times(METRE) + .dividedBy(SECOND.times(SECOND)) + .withName(NameSymbol.of("newton", "N")); + public static final LinearUnit PASCAL = NEWTON.dividedBy(METRE.times(METRE)) + .withName(NameSymbol.of("pascal", "Pa")); + public static final LinearUnit JOULE = NEWTON.times(METRE) + .withName(NameSymbol.of("joule", "J")); + public static final LinearUnit WATT = JOULE.dividedBy(SECOND) + .withName(NameSymbol.of("watt", "W")); + public static final LinearUnit COULOMB = AMPERE.times(SECOND) + .withName(NameSymbol.of("coulomb", "C")); + public static final LinearUnit VOLT = JOULE.dividedBy(COULOMB) + .withName(NameSymbol.of("volt", "V")); + public static final LinearUnit FARAD = COULOMB.dividedBy(VOLT) + .withName(NameSymbol.of("farad", "F")); + public static final LinearUnit OHM = VOLT.dividedBy(AMPERE) + .withName(NameSymbol.of("ohm", "\u03A9")); // omega + public static final LinearUnit SIEMENS = ONE.dividedBy(OHM) + .withName(NameSymbol.of("siemens", "S")); + public static final LinearUnit WEBER = VOLT.times(SECOND) + .withName(NameSymbol.of("weber", "Wb")); + public static final LinearUnit TESLA = WEBER.dividedBy(METRE.times(METRE)) + .withName(NameSymbol.of("tesla", "T")); + public static final LinearUnit HENRY = WEBER.dividedBy(AMPERE) + .withName(NameSymbol.of("henry", "H")); + public static final LinearUnit LUMEN = CANDELA.times(STERADIAN) + .withName(NameSymbol.of("lumen", "lm")); + public static final LinearUnit LUX = LUMEN.dividedBy(METRE.times(METRE)) + .withName(NameSymbol.of("lux", "lx")); + public static final LinearUnit BEQUEREL = ONE.dividedBy(SECOND) + .withName(NameSymbol.of("bequerel", "Bq")); + // for activity referred to a nucleotide + public static final LinearUnit GRAY = JOULE.dividedBy(KILOGRAM) + .withName(NameSymbol.of("grey", "Gy")); + // for absorbed dose + public static final LinearUnit SIEVERT = JOULE.dividedBy(KILOGRAM) + .withName(NameSymbol.of("sievert", "Sv")); + // for dose equivalent + public static final LinearUnit KATAL = MOLE.dividedBy(SECOND) + .withName(NameSymbol.of("katal", "kat")); + // common derived units included for convenience + public static final LinearUnit GRAM = KILOGRAM.dividedBy(1000) + .withName(NameSymbol.of("gram", "g")); + + public static final LinearUnit SQUARE_METRE = METRE.toExponent(2) + .withName(NameSymbol.of("square metre", "m^2", "square meter", + "metre squared", "meter squared")); + public static final LinearUnit CUBIC_METRE = METRE.toExponent(3) + .withName(NameSymbol.of("cubic metre", "m^3", "cubic meter", + "metre cubed", "meter cubed")); + public static final LinearUnit METRE_PER_SECOND = METRE.dividedBy(SECOND) + .withName( + NameSymbol.of("metre per second", "m/s", "meter per second")); + // Non-SI units included for convenience + public static final Unit CELSIUS = Unit + .fromConversionFunctions(KELVIN.getBase(), tempK -> tempK - 273.15, + tempC -> tempC + 273.15) + .withName(NameSymbol.of("degree Celsius", "\u00B0C")); + + public static final LinearUnit MINUTE = SECOND.times(60) + .withName(NameSymbol.of("minute", "min")); + public static final LinearUnit HOUR = MINUTE.times(60) + .withName(NameSymbol.of("hour", "h", "hr")); + public static final LinearUnit DAY = HOUR.times(60) + .withName(NameSymbol.of("day", "d")); + public static final LinearUnit KILOMETRE_PER_HOUR = METRE.times(1000) + .dividedBy(HOUR).withName(NameSymbol.of("kilometre per hour", "km/h", + "kilometer per hour")); + public static final LinearUnit DEGREE = RADIAN.times(360 / (2 * Math.PI)) + .withName(NameSymbol.of("degree", "\u00B0", "deg")); + public static final LinearUnit ARCMINUTE = DEGREE.dividedBy(60) + .withName(NameSymbol.of("arcminute", "arcmin")); + public static final LinearUnit ARCSECOND = ARCMINUTE.dividedBy(60) + .withName(NameSymbol.of("arcsecond", "arcsec")); + public static final LinearUnit ASTRONOMICAL_UNIT = METRE + .times(149597870700.0) + .withName(NameSymbol.of("astronomical unit", "au")); + public static final LinearUnit PARSEC = ASTRONOMICAL_UNIT + .dividedBy(ARCSECOND).withName(NameSymbol.of("parsec", "pc")); + public static final LinearUnit HECTARE = METRE.times(METRE).times(10000.0) + .withName(NameSymbol.of("hectare", "ha")); + public static final LinearUnit LITRE = METRE.times(METRE).times(METRE) + .dividedBy(1000.0).withName(NameSymbol.of("litre", "L", "l", "liter")); + public static final LinearUnit TONNE = KILOGRAM.times(1000.0) + .withName(NameSymbol.of("tonne", "t", "metric ton")); + public static final LinearUnit DALTON = KILOGRAM.times(1.660539040e-27) + .withName(NameSymbol.of("dalton", "Da", "atomic unit", "u")); // approximate + // value + public static final LinearUnit ELECTRONVOLT = JOULE.times(1.602176634e-19) + .withName(NameSymbol.of("electron volt", "eV")); + public static final LinearUnit BYTE = BIT.times(8) + .withName(NameSymbol.of("byte", "B")); + public static final Unit NEPER = Unit.fromConversionFunctions(ONE.getBase(), + pr -> 0.5 * Math.log(pr), Np -> Math.exp(2 * Np)) + .withName(NameSymbol.of("neper", "Np")); + public static final Unit BEL = Unit.fromConversionFunctions(ONE.getBase(), + pr -> Math.log10(pr), dB -> Math.pow(10, dB)) + .withName(NameSymbol.of("bel", "B")); + public static final Unit DECIBEL = Unit + .fromConversionFunctions(ONE.getBase(), pr -> 10 * Math.log10(pr), + dB -> Math.pow(10, dB / 10)) + .withName(NameSymbol.of("decibel", "dB")); + + /// The prefixes of the SI + // expanding decimal prefixes + public static final UnitPrefix KILO = UnitPrefix.valueOf(1e3) + .withName(NameSymbol.of("kilo", "k", "K")); + public static final UnitPrefix MEGA = UnitPrefix.valueOf(1e6) + .withName(NameSymbol.of("mega", "M")); + public static final UnitPrefix GIGA = UnitPrefix.valueOf(1e9) + .withName(NameSymbol.of("giga", "G")); + public static final UnitPrefix TERA = UnitPrefix.valueOf(1e12) + .withName(NameSymbol.of("tera", "T")); + public static final UnitPrefix PETA = UnitPrefix.valueOf(1e15) + .withName(NameSymbol.of("peta", "P")); + public static final UnitPrefix EXA = UnitPrefix.valueOf(1e18) + .withName(NameSymbol.of("exa", "E")); + public static final UnitPrefix ZETTA = UnitPrefix.valueOf(1e21) + .withName(NameSymbol.of("zetta", "Z")); + public static final UnitPrefix YOTTA = UnitPrefix.valueOf(1e24) + .withName(NameSymbol.of("yotta", "Y")); + + // contracting decimal prefixes + public static final UnitPrefix MILLI = UnitPrefix.valueOf(1e-3) + .withName(NameSymbol.of("milli", "m")); + public static final UnitPrefix MICRO = UnitPrefix.valueOf(1e-6) + .withName(NameSymbol.of("micro", "\u03BC", "u")); // mu + public static final UnitPrefix NANO = UnitPrefix.valueOf(1e-9) + .withName(NameSymbol.of("nano", "n")); + public static final UnitPrefix PICO = UnitPrefix.valueOf(1e-12) + .withName(NameSymbol.of("pico", "p")); + public static final UnitPrefix FEMTO = UnitPrefix.valueOf(1e-15) + .withName(NameSymbol.of("femto", "f")); + public static final UnitPrefix ATTO = UnitPrefix.valueOf(1e-18) + .withName(NameSymbol.of("atto", "a")); + public static final UnitPrefix ZEPTO = UnitPrefix.valueOf(1e-21) + .withName(NameSymbol.of("zepto", "z")); + public static final UnitPrefix YOCTO = UnitPrefix.valueOf(1e-24) + .withName(NameSymbol.of("yocto", "y")); + + // prefixes that don't match the pattern of thousands + public static final UnitPrefix DEKA = UnitPrefix.valueOf(1e1) + .withName(NameSymbol.of("deka", "da", "deca", "D")); + public static final UnitPrefix HECTO = UnitPrefix.valueOf(1e2) + .withName(NameSymbol.of("hecto", "h", "H", "hekto")); + public static final UnitPrefix DECI = UnitPrefix.valueOf(1e-1) + .withName(NameSymbol.of("deci", "d")); + public static final UnitPrefix CENTI = UnitPrefix.valueOf(1e-2) + .withName(NameSymbol.of("centi", "c")); + public static final UnitPrefix KIBI = UnitPrefix.valueOf(1024) + .withName(NameSymbol.of("kibi", "Ki")); + public static final UnitPrefix MEBI = KIBI.times(1024) + .withName(NameSymbol.of("mebi", "Mi")); + public static final UnitPrefix GIBI = MEBI.times(1024) + .withName(NameSymbol.of("gibi", "Gi")); + public static final UnitPrefix TEBI = GIBI.times(1024) + .withName(NameSymbol.of("tebi", "Ti")); + public static final UnitPrefix PEBI = TEBI.times(1024) + .withName(NameSymbol.of("pebi", "Pi")); + public static final UnitPrefix EXBI = PEBI.times(1024) + .withName(NameSymbol.of("exbi", "Ei")); + + // a few prefixed units + public static final LinearUnit MICROMETRE = SI.METRE.withPrefix(SI.MICRO); + public static final LinearUnit MILLIMETRE = SI.METRE.withPrefix(SI.MILLI); + public static final LinearUnit KILOMETRE = SI.METRE.withPrefix(SI.KILO); + public static final LinearUnit MEGAMETRE = SI.METRE.withPrefix(SI.MEGA); + + public static final LinearUnit MICROLITRE = SI.LITRE.withPrefix(SI.MICRO); + public static final LinearUnit MILLILITRE = SI.LITRE.withPrefix(SI.MILLI); + public static final LinearUnit KILOLITRE = SI.LITRE.withPrefix(SI.KILO); + public static final LinearUnit MEGALITRE = SI.LITRE.withPrefix(SI.MEGA); + + public static final LinearUnit MICROSECOND = SI.SECOND.withPrefix(SI.MICRO); + public static final LinearUnit MILLISECOND = SI.SECOND.withPrefix(SI.MILLI); + public static final LinearUnit KILOSECOND = SI.SECOND.withPrefix(SI.KILO); + public static final LinearUnit MEGASECOND = SI.SECOND.withPrefix(SI.MEGA); + + public static final LinearUnit MICROGRAM = SI.GRAM.withPrefix(SI.MICRO); + public static final LinearUnit MILLIGRAM = SI.GRAM.withPrefix(SI.MILLI); + public static final LinearUnit MEGAGRAM = SI.GRAM.withPrefix(SI.MEGA); + + public static final LinearUnit MICRONEWTON = SI.NEWTON.withPrefix(SI.MICRO); + public static final LinearUnit MILLINEWTON = SI.NEWTON.withPrefix(SI.MILLI); + public static final LinearUnit KILONEWTON = SI.NEWTON.withPrefix(SI.KILO); + public static final LinearUnit MEGANEWTON = SI.NEWTON.withPrefix(SI.MEGA); + + public static final LinearUnit MICROJOULE = SI.JOULE.withPrefix(SI.MICRO); + public static final LinearUnit MILLIJOULE = SI.JOULE.withPrefix(SI.MILLI); + public static final LinearUnit KILOJOULE = SI.JOULE.withPrefix(SI.KILO); + public static final LinearUnit MEGAJOULE = SI.JOULE.withPrefix(SI.MEGA); + + public static final LinearUnit MICROWATT = SI.WATT.withPrefix(SI.MICRO); + public static final LinearUnit MILLIWATT = SI.WATT.withPrefix(SI.MILLI); + public static final LinearUnit KILOWATT = SI.WATT.withPrefix(SI.KILO); + public static final LinearUnit MEGAWATT = SI.WATT.withPrefix(SI.MEGA); + + public static final LinearUnit MICROCOULOMB = SI.COULOMB + .withPrefix(SI.MICRO); + public static final LinearUnit MILLICOULOMB = SI.COULOMB + .withPrefix(SI.MILLI); + public static final LinearUnit KILOCOULOMB = SI.COULOMB.withPrefix(SI.KILO); + public static final LinearUnit MEGACOULOMB = SI.COULOMB.withPrefix(SI.MEGA); + + public static final LinearUnit MICROAMPERE = SI.AMPERE.withPrefix(SI.MICRO); + public static final LinearUnit MILLIAMPERE = SI.AMPERE.withPrefix(SI.MILLI); + + public static final LinearUnit MICROVOLT = SI.VOLT.withPrefix(SI.MICRO); + public static final LinearUnit MILLIVOLT = SI.VOLT.withPrefix(SI.MILLI); + public static final LinearUnit KILOVOLT = SI.VOLT.withPrefix(SI.KILO); + public static final LinearUnit MEGAVOLT = SI.VOLT.withPrefix(SI.MEGA); + + public static final LinearUnit KILOOHM = SI.OHM.withPrefix(SI.KILO); + public static final LinearUnit MEGAOHM = SI.OHM.withPrefix(SI.MEGA); + + // sets of prefixes + public static final Set<UnitPrefix> ALL_PREFIXES = Set.of(DEKA, HECTO, KILO, + MEGA, GIGA, TERA, PETA, EXA, ZETTA, YOTTA, DECI, CENTI, MILLI, MICRO, + NANO, PICO, FEMTO, ATTO, ZEPTO, YOCTO, KIBI, MEBI, GIBI, TEBI, PEBI, + EXBI); + + public static final Set<UnitPrefix> DECIMAL_PREFIXES = Set.of(DEKA, HECTO, + KILO, MEGA, GIGA, TERA, PETA, EXA, ZETTA, YOTTA, DECI, CENTI, MILLI, + MICRO, NANO, PICO, FEMTO, ATTO, ZEPTO, YOCTO); + public static final Set<UnitPrefix> THOUSAND_PREFIXES = Set.of(KILO, MEGA, + GIGA, TERA, PETA, EXA, ZETTA, YOTTA, MILLI, MICRO, NANO, PICO, FEMTO, + ATTO, ZEPTO, YOCTO); + public static final Set<UnitPrefix> MAGNIFYING_PREFIXES = Set.of(DEKA, HECTO, + KILO, MEGA, GIGA, TERA, PETA, EXA, ZETTA, YOTTA, KIBI, MEBI, GIBI, + TEBI, PEBI, EXBI); + public static final Set<UnitPrefix> REDUCING_PREFIXES = Set.of(DECI, CENTI, + MILLI, MICRO, NANO, PICO, FEMTO, ATTO, ZEPTO, YOCTO); + + // You may NOT get SI instances! + private SI() { + throw new AssertionError(); + } +} |