<?php
  
  /**
   * Interface for charts
   *
   * @category   Phpdocx
   * @package    elements
   * @copyright  Copyright (c) Narcea Producciones Multimedia S.L.
   *             (http://www.2mdc.com)
   * @license    LGPL
   * @version    3.0
   * @link       http://www.phpdocx.com
   * @since      File available since Release 3.0
   */
  interface InterfaceGraphic {
  	/**
       * Create embedded xml chart
       *
       * @access public
       */
      public function createEmbeddedXmlChart();
  
      /**
       * return the tags where the data is written
       *
       * @access public
       */
      public function dataTag();
  
      /**
       * return the object type of the xlsx
       *
       * @access public
       */
      public function getXlsxType();
  }