mosbth / cimage

      *

      * @return $this

      */

    public function setBaseAspecRatio($aspectRatio = null)

    {

        $this->log("# Set base for aspect ratio.");

        $this->aspectRatio = $aspectRatio;

        if (!(is_null($this->aspectRatio) || is_numeric($this->aspectRatio))) {

            throw new Exception("Aspect ratio out of range");

        }

        $this->log(" Requested aspectRatio={$this->aspectRatio}.");

        return $this;

    }

     *

     * @return $this

     */

    public function setBaseDevicePixelRate($dpr = null)

    {

        $this->log("# Set base for device pixel rate.");

        $this->dpr = $dpr;

        if (!(is_null($dpr) || (is_numeric($this->dpr) && $this->dpr > 0))) {

            throw new Exception("Device pixel rate out of range");

        }

        $this->log(" Requested dpr={$this->dpr}.");

        return $this;

    }