League\Geotools\Geotools::distance PHP Method

    public function distance()
    {
        return new Distance();
    }

 protected function execute(InputInterface $input, OutputInterface $output)
 {
     $ellipsoid = Ellipsoid::createFromName($input->getOption('ellipsoid'));
     $from = new Coordinate($input->getArgument('origin'), $ellipsoid);
     $to = new Coordinate($input->getArgument('destination'), $ellipsoid);
     $geotools = new Geotools();
     $distance = $geotools->distance()->setFrom($from)->setTo($to);
     if ($input->getOption('km')) {
         $distance->in('km');
     }
     if ($input->getOption('mi')) {
         $distance->in('mi');
     }
     if ($input->getOption('ft')) {
         $distance->in('ft');
     }
     $output->writeln(sprintf('<value>%s</value>', $distance->haversine()));
 }