Identicon\Generator\GdGenerator::generateImage PHP Метод

    private function generateImage()
    {
        // prepare image
        $this->generatedImage = imagecreatetruecolor($this->getPixelRatio() * 5, $this->getPixelRatio() * 5);
        $rgbBackgroundColor = $this->getBackgroundColor();
        if (null === $rgbBackgroundColor) {
            $background = imagecolorallocate($this->generatedImage, 0, 0, 0);
            imagecolortransparent($this->generatedImage, $background);
        } else {
            $background = imagecolorallocate($this->generatedImage, $rgbBackgroundColor[0], $rgbBackgroundColor[1], $rgbBackgroundColor[2]);
            imagefill($this->generatedImage, 0, 0, $background);
        }
        // prepare color
        $rgbColor = $this->getColor();
        $gdColor = imagecolorallocate($this->generatedImage, $rgbColor[0], $rgbColor[1], $rgbColor[2]);
        // draw content
        foreach ($this->getArrayOfSquare() as $lineKey => $lineValue) {
            foreach ($lineValue as $colKey => $colValue) {
                if (true === $colValue) {
                    imagefilledrectangle($this->generatedImage, $colKey * $this->getPixelRatio(), $lineKey * $this->getPixelRatio(), ($colKey + 1) * $this->getPixelRatio(), ($lineKey + 1) * $this->getPixelRatio(), $gdColor);
                }
            }
        }
        return $this;
    }