public function equals(Converter $that)
{
if (!$that instanceof self) {
return false;
}
return $this->dividend == $that->getDividend() && $this->divisor == $that->getDivisor();
}
public function equals(Converter $that)
{
if (!$that instanceof self) {
return false;
}
return $this->offset == $that->getOffset();
}
public function equals(Converter $that)
{
if (!$that instanceof self) {
return false;
}
return $this->base == $that->getBase();
}
public function equals(Converter $that)
{
if (!$that instanceof self) {
return false;
}
return $this->factor == $that->getFactor();
}
public function toBaseUnits()
{
$result = Converter::IDENTITY();
foreach ($this->elements as $element) {
$unit = $element->unit;
$converter = $unit->toBaseUnits();
if (!$converter->isLinear()) {
throw new \RuntimeException($unit->getSymbol() . ' is non-linear.');
}
if ($element->root != 1) {
throw new \RuntimeException($unit->getSymbol() . ' holds a base unit with fractional exponent');
}
$pow = $element->pow;
if ($pow < 0) {
$pow = -$pow;
$converter = $converter->inverse();
}
for ($j = 0; $j < $pow; ++$j) {
$result = $result->concat($converter);
}
}
return $result;
}
/**
* Applies the given operation and returns a transformed unit.
*
* @param Converter $operation
*
* @return Unit
*/
protected function transform(Converter $operation)
{
if ($operation->isIdentity()) {
return $this;
}
return new TransformedUnit($this, $operation);
}
public function __toString()
{
return $this->first->__toString() . $this->second->__toString();
}
public function toBaseUnits()
{
return Converter::IDENTITY();
}
public function toStandardUnit()
{
return Converter::IDENTITY();
}
