91 lines
3.0 KiB
PHP
91 lines
3.0 KiB
PHP
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* Image_Graph - PEAR PHP OO Graph Rendering Utility.
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*
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* PHP versions 4 and 5
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*
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* LICENSE: This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or (at your
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* option) any later version. This library is distributed in the hope that it
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
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* General Public License for more details. You should have received a copy of
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* the GNU Lesser General Public License along with this library; if not, write
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* to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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* 02111-1307 USA
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*
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* @category Images
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* @package Image_Graph
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* @subpackage Marker
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* @author Jesper Veggerby <pear.nosey@veggerby.dk>
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* @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
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* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
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* @version CVS: $Id: Average.php,v 1.6 2005/08/03 21:21:55 nosey Exp $
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* @link http://pear.php.net/package/Image_Graph
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*/
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/**
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* Include file Image/Graph/Marker.php
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*/
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require_once 'Image/Graph/Marker.php';
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/**
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* A marker displaying the 'distance' to the datasets average value.
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*
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* @category Images
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* @package Image_Graph
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* @subpackage Marker
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* @author Jesper Veggerby <pear.nosey@veggerby.dk>
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* @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
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* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
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* @version Release: 0.7.2
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* @link http://pear.php.net/package/Image_Graph
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*/
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class Image_Graph_Marker_Average extends Image_Graph_Marker
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{
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/**
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* Draw the marker on the canvas
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*
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* @param int $x The X (horizontal) position (in pixels) of the marker on
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* the canvas
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* @param int $y The Y (vertical) position (in pixels) of the marker on the
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* canvas
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* @param array $values The values representing the data the marker 'points'
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* to
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* @access private
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*/
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function _drawMarker($x, $y, $values = false)
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{
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if ((isset($values['AVERAGE_Y'])) &&
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(is_a($this->_parent, 'Image_Graph_Plot')))
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{
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$point = $this->_pointXY(
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array(
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'X' => $values['APX'],
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'Y' => $values['AVERAGE_Y']
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)
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);
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$this->_getLineStyle();
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$this->_canvas->line(array('x0' => $x, 'y0' => $y, 'x1' => $point['X'], 'y1' => $point['Y']));
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$this->_getLineStyle();
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$this->_canvas->line(
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array(
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'x0' => $point['X'] - 2,
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'y0' => $point['Y'],
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'x1' => $point['X'] + 2,
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'y1' => $point['Y']
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)
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);
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}
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parent::_drawMarker($x, $y, $values);
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}
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}
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?>
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