public function invert($vertical = false)
    {
        //Argument 1 must be a boolean
        Argument::i()->test(1, 'bool');

        //get the source width and height
        $orgWidth = imagesx($this->resource);
        $orgHeight = imagesy($this->resource);

        $invert = imagecreatetruecolor($orgWidth, $orgHeight);

        if ($vertical) {
            imagecopyresampled(
                $invert,
                $this->resource,
                0,
                0,
                0,
                $orgHeight-1,
                $orgWidth,
                $orgHeight,
                $orgWidth,
                0-$orgHeight
            );
        } else {
            imagecopyresampled(
                $invert,
                $this->resource,
                0,
                0,
                $orgWidth-1,
                0,
                $orgWidth,
                $orgHeight,
                0-$orgWidth,
                $orgHeight
            );
        }

        //destroy the original resource
        imagedestroy($this->resource);

        //assign the new resource
        $this->resource = $invert;

        return $this;
    }
public function invert($vertical = false)
    {
        //Argument 1 must be a boolean
        Argument::i()->test(1, 'bool');

        //get the source width and height
        $orgWidth = imagesx($this->resource);
        $orgHeight = imagesy($this->resource);

        $invert = imagecreatetruecolor($orgWidth, $orgHeight);

        if ($vertical) {
            imagecopyresampled(
                $invert,
                $this->resource,
                0,
                0,
                0,
                $orgHeight-1,
                $orgWidth,
                $orgHeight,
                $orgWidth,
                0-$orgHeight
            );
        } else {
            imagecopyresampled(
                $invert,
                $this->resource,
                0,
                0,
                $orgWidth-1,
                0,
                $orgWidth,
                $orgHeight,
                0-$orgWidth,
                $orgHeight
            );
        }

        //destroy the original resource
        imagedestroy($this->resource);

        //assign the new resource
        $this->resource = $invert;

        return $this;
    }
public function invert ( $ vertical = false ) { //Argument 1 must be a boolean Argument :: i ( ) -> test ( 1 , 'bool' ) ; //get the source width and height $ orgWidth = imagesx ( $ this -> resource ) ; $ orgHeight = imagesy ( $ this -> resource ) ; $ invert = imagecreatetruecolor ( $ orgWidth , $ orgHeight ) ; if ( $ vertical ) { imagecopyresampled ( $ invert , $ this -> resource , 0 , 0 , 0 , $ orgHeight - 1 , $ orgWidth , $ orgHeight , $ orgWidth , 0 - $ orgHeight ) ; } else { imagecopyresampled ( $ invert , $ this -> resource , 0 , 0 , $ orgWidth - 1 , 0 , $ orgWidth , $ orgHeight , 0 - $ orgWidth , $ orgHeight ) ; } //destroy the original resource imagedestroy ( $ this -> resource ) ; //assign the new resource $ this -> resource = $ invert ; return $ this ; }
Inverts the image.

@param bool $vertical If true invert vertical; if false invert horizontal

@return Eden\Image\Index
Inverts the image .