/**
* {@inheritdoc}
*/
public function coordinateSystem()
{
if ($this->proxyGeometry === null) {
$this->load();
}
return $this->proxyGeometry->coordinateSystem();
}
/**
* Tests Countable and Traversable interfaces.
*/
public function testInterfaces()
{
$circularString = CircularString::fromText('CIRCULARSTRING (1 2, 3 4, 5 6)');
$this->assertInstanceOf(\Countable::class, $circularString);
$this->assertSame(3, count($circularString));
$this->assertInstanceOf(\Traversable::class, $circularString);
$this->assertSame([$circularString->pointN(1), $circularString->pointN(2), $circularString->pointN(3)], iterator_to_array($circularString));
}
