public static function VolumeUnit::getBaseFactor in Physical Fields 8

Gets the base factor for the given unit.

Used for converting measurements to and from the base unit. Use multiplication to convert a measurement to the base unit, and division to convert from the base unit (into the given unit).

Parameters

string $unit: The unit.

Return value

string The base factor.

Overrides UnitInterface::getBaseFactor

File

src/VolumeUnit.php, line 51

Class

VolumeUnit

Provides volume units.

Namespace

Drupal\physical

Code

public static function getBaseFactor($unit) {
  self::assertExists($unit);
  $factors = [
    self::MILLILITER => '0.000001',
    self::CENTILITER => '0.00001',
    self::DECILITER => '0.0001',
    self::LITER => '0.001',
    self::CUBIC_MILLIMETER => '0.000000001',
    self::CUBIC_CENTIMETER => '0.000001',
    self::CUBIC_METER => '1',
    self::CUBIC_INCH => '0.00001638706',
    self::CUBIC_FOOT => '0.02831685',
    self::FLUID_OUNCE => '0.00002957353',
    self::US_GALLON => '0.0037854118',
  ];
  return $factors[$unit];
}