/**
* {@inheritdoc}
*/
public function getColorAt(Coordinate $coordinate)
{
$this->assertEmpty();
$x = $coordinate->getX();
$y = $coordinate->getY();
if ($x < 0 || $x > $this->getWidth() || ($y < 0 || $y > $this->getHeight())) {
throw new InvalidCoordinateException(sprintf('OutOfBounds - Invalid Coordinate "%s"', (string) $coordinate));
}
return @imagecolorat($this->getHandler(), $x, $y);
}
