/**
* Determines whether a set of points represents an outer ring.
* If points are in clockwise orientation then, they form an outer ring.
*
* @param array $ring array of points forming the ring
*
* @return bool whether a set of points represents an outer ring
* @access public
* @static
*/
public static function isOuterRing($ring)
{
// If area is negative then it's in clockwise orientation,
// i.e. it's an outer ring
if (PMA_GIS_Polygon::area($ring) < 0) {
return true;
}
return false;
}
/**
* test for Area
*
* @param array $ring array of points forming the ring
* @param fload $area area of the ring
*
* @dataProvider providerForTestArea
* @return void
*/
public function testArea($ring, $area)
{
$this->assertEquals($this->object->area($ring), $area);
}
