当前路径：Classes/PHPExcel/Chart.php
<?php

/**
 * PHPExcel_Chart
 *
 * Copyright (c) 2006 - 2015 PHPExcel
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category    PHPExcel
 * @package        PHPExcel_Chart
 * @copyright    Copyright (c) 2006 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license        http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt    LGPL
 * @version        ##VERSION##, ##DATE##
 */
class PHPExcel_Chart
{
    /**
     * Chart Name
     *
     * @var string
     */
    private $name = '';

    /**
     * Worksheet
     *
     * @var PHPExcel_Worksheet
     */
    private $worksheet;

    /**
     * Chart Title
     *
     * @var PHPExcel_Chart_Title
     */
    private $title;

    /**
     * Chart Legend
     *
     * @var PHPExcel_Chart_Legend
     */
    private $legend;

    /**
     * X-Axis Label
     *
     * @var PHPExcel_Chart_Title
     */
    private $xAxisLabel;

    /**
     * Y-Axis Label
     *
     * @var PHPExcel_Chart_Title
     */
    private $yAxisLabel;

    /**
     * Chart Plot Area
     *
     * @var PHPExcel_Chart_PlotArea
     */
    private $plotArea;

    /**
     * Plot Visible Only
     *
     * @var boolean
     */
    private $plotVisibleOnly = true;

    /**
     * Display Blanks as
     *
     * @var string
     */
    private $displayBlanksAs = '0';

    /**
     * Chart Asix Y as
     *
     * @var PHPExcel_Chart_Axis
     */
    private $yAxis;

    /**
     * Chart Asix X as
     *
     * @var PHPExcel_Chart_Axis
     */
    private $xAxis;

    /**
     * Chart Major Gridlines as
     *
     * @var PHPExcel_Chart_GridLines
     */
    private $majorGridlines;

    /**
     * Chart Minor Gridlines as
     *
     * @var PHPExcel_Chart_GridLines
     */
    private $minorGridlines;

    /**
     * Top-Left Cell Position
     *
     * @var string
     */
    private $topLeftCellRef = 'A1';


    /**
     * Top-Left X-Offset
     *
     * @var integer
     */
    private $topLeftXOffset = 0;


    /**
     * Top-Left Y-Offset
     *
     * @var integer
     */
    private $topLeftYOffset = 0;


    /**
     * Bottom-Right Cell Position
     *
     * @var string
     */
    private $bottomRightCellRef = 'A1';


    /**
     * Bottom-Right X-Offset
     *
     * @var integer
     *...