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public function SassColour::hsl2rgb in Sassy 7.3

Same name and namespace in other branches

7 phamlp/sass/script/literals/SassColour.php \SassColour::hsl2rgb()

Converts from HSL to RGB colourspace Algorithm from the CSS3 spec: {@link http://www.w3.org/TR/css3-color/#hsl-color} @uses hue2rgb()

3 calls to SassColour::hsl2rgb()

SassColour::getBlue in phpsass/script/literals/SassColour.php: Returns the blue component of this colour.
SassColour::getGreen in phpsass/script/literals/SassColour.php: Returns the green component of this colour.
SassColour::getRed in phpsass/script/literals/SassColour.php: Returns the red component of this colour.

File

phpsass/script/literals/SassColour.php, line 777

Class

SassColour: SassColour class. A SassScript object representing a CSS colour.

Code

public function hsl2rgb() {
  $h = $this->hue / 360;
  $s = $this->saturation / 100;
  $l = $this->lightness / 100;
  $m1 = $l <= 0.5 ? $l * ($s + 1) : $l + $s - $l * $s;
  $m2 = $l * 2 - $m1;
  $this->red = $this
    ->hue2rgb($m1, $m2, $h + 1 / 3);
  $this->green = $this
    ->hue2rgb($m1, $m2, $h);
  $this->blue = $this
    ->hue2rgb($m1, $m2, $h - 1 / 3);
}