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<?php
namespace Scene7\Commands;
trait Scale
{
/**
* @param float $factor
* @return $this
*/
public function setScale($factor)
{
$factor = (float) $factor;
if ($factor < 0) {
throw new \InvalidArgumentException('Factor must be greater than 0');
}
$this->addCommand(['scale' => $factor]);
return $this;
}
}