/**
* Asaserting that two colors are equals
* (JPG compression is not preserving colors for instance, so we
* need a non-strict way to compare it).
*/
protected function assertColorEquals($c1, $c2, $delta = 8)
{
$c1 = ImageColor::parse($c1);
$c2 = ImageColor::parse($c2);
list($r1, $g1, $b1) = $this->toRGB($c1);
list($r2, $g2, $b2) = $this->toRGB($c2);
$this->assertLessThan($delta, abs($r1 - $r2));
$this->assertLessThan($delta, abs($g1 - $g2));
$this->assertLessThan($delta, abs($b1 - $b2));
}
/**
* @inheritdoc
*/
public function polygon(array $points, $color, $filled = false)
{
if ($filled) {
imagefilledpolygon($this->resource, $points, count($points) / 2, ImageColor::gdAllocate($this->resource, $color));
} else {
imagepolygon($this->resource, $points, count($points) / 2, ImageColor::gdAllocate($this->resource, $color));
}
return $this;
}
