source: code/Website/php5-ofc-library/lib/OFC/OFC_Chart.php

<?php
/**
 * PHP Integration of Open Flash Chart
 * Copyright (C) 2008 John Glazebrook <open-flash-chart@teethgrinder.co.uk>
 *
 * 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
 */

if (! function_exists('json_encode'))
{
    require_once('OFC/JSON.php');
}

require_once('OFC/JSON_Format.php');

require_once('OFC/OFC_Elements.php');

require_once('OFC/Charts/OFC_Charts_Area.php');
require_once('OFC/Charts/OFC_Charts_Bar.php');
require_once('OFC/Charts/OFC_Charts_Line.php');
require_once('OFC/Charts/OFC_Charts_Pie.php');
require_once('OFC/Charts/OFC_Charts_Scatter.php');
require_once('OFC/Charts/Area/OFC_Charts_Area_Hollow.php');
require_once('OFC/Charts/Bar/OFC_Charts_Bar_Filled.php');
require_once('OFC/Charts/Bar/OFC_Charts_Bar_3d.php');
require_once('OFC/Charts/Bar/OFC_Charts_Bar_Glass.php');
require_once('OFC/Charts/Bar/OFC_Charts_Bar_Horizontal.php');
require_once('OFC/Charts/Bar/OFC_Charts_Bar_Sketch.php');
require_once('OFC/Charts/Bar/OFC_Charts_Bar_Stack.php');
require_once('OFC/Charts/Line/OFC_Charts_Line_Dot.php');
require_once('OFC/Charts/Line/OFC_Charts_Line_Hollow.php');

class OFC_Chart
{
        function OFC_Chart()
        {
                $this->title = new OFC_Elements_Title( "Many data lines" );
                $this->elements = array();
        }

        function set_title( $t )
        {
                $this->title = $t;
        }

        function set_x_axis( $x )
        {
                $this->x_axis = $x;
        }

        function set_y_axis( $y )
        {
                $this->y_axis = $y;
        }

        function add_y_axis( $y )
        {
                $this->y_axis = $y;
        }

        function set_y_axis_right( $y )
        {
                $this->y_axis_right = $y;
        }

        function add_element( $e )
        {
                $this->elements[] = $e;
        }

        function set_x_legend( $x )
        {
                $this->x_legend = $x;
        }

        function set_y_legend( $y )
        {
                $this->y_legend = $y;
        }

        function set_bg_colour( $colour )
        {
                $this->bg_colour = $colour;
        }

        function toString()
        {
                if (function_exists('json_encode'))
                {
                        return json_encode($this);
                }
                else
                {
                        $json = new Services_JSON();
                        return $json->encode( $this );
                }
        }

        function toPrettyString()
        {
                return json_format( $this->toString() );
        }
}