2009-01-05 00:22:54 +00:00
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<?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 Plot
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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: Plot.php,v 1.20 2006/02/28 22:33:00 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/Plotarea/Element.php
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*/
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require_once 'Image/Graph/Plotarea/Element.php';
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/**
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* Framework for a chart
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*
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* @category Images
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* @package Image_Graph
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* @subpackage Plot
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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: @package_version@
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* @link http://pear.php.net/package/Image_Graph
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* @abstract
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*/
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class Image_Graph_Plot extends Image_Graph_Plotarea_Element
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{
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/**
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* The dataset to plot
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* @var Dataset
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* @access private
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*/
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var $_dataset;
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/**
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* The marker to plot the data set as
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* @var Marker
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* @access private
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*/
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var $_marker = null;
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/**
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* The dataselector to use for data marking
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* @var DataSelector
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* @access private
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*/
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var $_dataSelector = null;
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/**
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* The Y axis to associate the plot with
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* @var int
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* @access private
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*/
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var $_axisY = IMAGE_GRAPH_AXIS_Y;
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/**
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* The type of the plot if multiple datasets are used
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* @var string
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* @access private
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*/
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var $_multiType = 'normal';
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/**
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* The title of the plot, used for legending in case of simple plots
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* @var string
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* @access private
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*/
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var $_title = 'plot';
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/**
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* PlotType [Constructor]
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*
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* Valid values for multiType are:
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*
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* 'normal' Plot is normal, multiple datasets are displayes next to one
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* another
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*
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* 'stacked' Datasets are stacked on top of each other
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*
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* 'stacked100pct' Datasets are stacked and displayed as percentages of the
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* total sum
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*
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* I no title is specified a default is used, which is basically the plot
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* type (fx. for a 'Image_Graph_Plot_Smoothed_Area' default title is
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* 'Smoothed Area')
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*
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* @param Image_Graph_Dataset $dataset The data set (value containter) to
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* plot or an array of datasets
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* @param string $multiType The type of the plot
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* @param string $title The title of the plot (used for legends,
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* {@link Image_Graph_Legend})
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*/
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function Image_Graph_Plot(& $dataset, $multiType = 'normal', $title = '')
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{
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if (!is_a($dataset, 'Image_Graph_Dataset')) {
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if (is_array($dataset)) {
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$keys = array_keys($dataset);
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foreach ($keys as $key) {
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if (!is_a($dataset[$key], 'Image_Graph_Dataset')) {
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$this->_error('Invalid dataset passed to ' . get_class($this));
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}
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}
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unset($keys);
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} else {
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$this->_error('Invalid dataset passed to ' . get_class($this));
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}
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}
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parent::Image_Graph_Common();
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if ($dataset) {
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if (is_array($dataset)) {
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$this->_dataset =& $dataset;
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} else {
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$this->_dataset = array(&$dataset);
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}
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}
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if ($title) {
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$this->_title = $title;
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} else {
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$this->_title = str_replace('_', ' ', substr(get_class($this), 17));
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}
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$multiType = strtolower($multiType);
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if (($multiType == 'normal') ||
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($multiType == 'stacked') ||
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($multiType == 'stacked100pct'))
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{
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$this->_multiType = $multiType;
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} else {
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$this->_error(
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'Invalid multitype: ' . $multiType .
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' expected (normal|stacked|stacked100pct)'
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);
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$this->_multiType = 'normal';
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}
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}
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/**
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* Sets the title of the plot, used for legend
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*
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* @param string $title The title of the plot
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*/
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function setTitle($title)
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{
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$this->_title = $title;
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}
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/**
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* Parses the URL mapping data in the point and adds it to the parameter array used by
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* Image_Canvas
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*
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* @param array $point The data point (from the dataset)
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* @param array $canvasData The The for the canvas method
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* @return array The union of the canvas data points and the appropriate points for the dataset
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* @access private
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*/
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function _mergeData($point, $canvasData)
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{
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if (isset($point['data'])) {
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if (isset($point['data']['url'])) {
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$canvasData['url'] = $point['data']['url'];
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}
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if (isset($point['data']['target'])) {
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$canvasData['target'] = $point['data']['target'];
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}
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if (isset($point['data']['alt'])) {
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$canvasData['alt'] = $point['data']['alt'];
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}
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if (isset($point['data']['htmltags'])) {
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$canvasData['htmltags'] = $point['data']['htmltags'];
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}
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}
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return $canvasData;
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}
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/**
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* Sets the Y axis to plot the data
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*
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* @param int $axisY The Y axis (either IMAGE_GRAPH_AXIS_Y / 'y' or
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* IMAGE_GRAPH_AXIS_Y_SECONDARY / 'ysec' (defaults to IMAGE_GRAPH_AXIS_Y))
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* @access private
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*/
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function _setAxisY($axisY)
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{
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if ($axisY == 'y') {
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$this->_axisY = IMAGE_GRAPH_AXIS_Y;
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} elseif ($axisY == 'ysec') {
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$this->_axisY = IMAGE_GRAPH_AXIS_Y_SECONDARY;
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} else {
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$this->_axisY = $axisY;
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}
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}
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/**
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* Sets the marker to 'display' data points on the graph
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*
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* @param Marker $marker The marker
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*/
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function &setMarker(& $marker)
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{
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$this->add($marker);
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$this->_marker =& $marker;
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return $marker;
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}
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/**
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* Sets the dataselector to specify which data should be displayed on the
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* plot as markers and which are not
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*
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* @param DataSelector $dataSelector The dataselector
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*/
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function setDataSelector(& $dataSelector)
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{
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$this->_dataSelector =& $dataSelector;
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}
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/**
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* Calculate marker point data
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*
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* @param array Point The point to calculate data for
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* @param array NextPoint The next point
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* @param array PrevPoint The previous point
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* @param array Totals The pre-calculated totals, if needed
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* @return array An array containing marker point data
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* @access private
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*/
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function _getMarkerData($point, $nextPoint, $prevPoint, & $totals)
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{
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if (is_array($this->_dataset)) {
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if ($this->_multiType == 'stacked') {
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if (!isset($totals['SUM_Y'])) {
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$totals['SUM_Y'] = array();
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}
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$x = $point['X'];
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if (!isset($totals['SUM_Y'][$x])) {
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$totals['SUM_Y'][$x] = 0;
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}
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} elseif ($this->_multiType == 'stacked100pct') {
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$x = $point['X'];
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if ($totals['TOTAL_Y'][$x] != 0) {
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if (!isset($totals['SUM_Y'])) {
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$totals['SUM_Y'] = array();
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}
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if (!isset($totals['SUM_Y'][$x])) {
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$totals['SUM_Y'][$x] = 0;
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}
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}
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}
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if (isset($totals['ALL_SUM_Y'])) {
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$point['SUM_Y'] = $totals['ALL_SUM_Y'];
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}
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if (!$prevPoint) {
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$point['AX'] = -5;
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$point['AY'] = 5;
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$point['PPX'] = 0;
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$point['PPY'] = 0;
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$point['NPX'] = $nextPoint['X'];
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$point['NPY'] = $nextPoint['Y'];
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} elseif (!$nextPoint) {
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$point['AX'] = 5;
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$point['AY'] = 5;
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$point['PPX'] = $prevPoint['X'];
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$point['PPY'] = $prevPoint['Y'];
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$point['NPX'] = 0;
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$point['NPY'] = 0;
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} else {
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$point['AX'] = $this->_pointY($prevPoint) - $this->_pointY($nextPoint);
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$point['AY'] = $this->_pointX($nextPoint) - $this->_pointX($prevPoint);
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$point['PPX'] = $prevPoint['X'];
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$point['PPY'] = $prevPoint['Y'];
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$point['NPX'] = $nextPoint['X'];
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$point['NPY'] = $nextPoint['Y'];
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}
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$point['APX'] = $point['X'];
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$point['APY'] = $point['Y'];
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if ((isset($totals['MINIMUM_X'])) && ($totals['MINIMUM_X'] != 0)) {
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$point['PCT_MIN_X'] = 100 * $point['X'] / $totals['MINIMUM_X'];
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}
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if ((isset($totals['MAXIMUM_X'])) && ($totals['MAXIMUM_X'] != 0)) {
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$point['PCT_MAX_X'] = 100 * $point['X'] / $totals['MAXIMUM_X'];
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}
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if ((isset($totals['MINIMUM_Y'])) && ($totals['MINIMUM_Y'] != 0)) {
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$point['PCT_MIN_Y'] = 100 * $point['Y'] / $totals['MINIMUM_Y'];
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}
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if ((isset($totals['MAXIMUM_Y'])) && ($totals['MAXIMUM_Y'] != 0)) {
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$point['PCT_MAX_Y'] = 100 * $point['Y'] / $totals['MAXIMUM_Y'];
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}
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$point['LENGTH'] = sqrt($point['AX'] * $point['AX'] +
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$point['AY'] * $point['AY']);
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if ((isset($point['LENGTH'])) && ($point['LENGTH'] != 0)) {
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$point['ANGLE'] = asin($point['AY'] / $point['LENGTH']);
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}
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if ((isset($point['AX'])) && ($point['AX'] > 0)) {
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$point['ANGLE'] = pi() - $point['ANGLE'];
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}
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if ($this->_parent->_horizontal) {
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|
|
$point['MARKER_Y1'] = $this->_pointY($point) -
|
|
|
|
|
(isset($totals['WIDTH']) ? $totals['WIDTH'] : 0);
|
|
|
|
|
|
|
|
|
|
$point['MARKER_Y2'] = $this->_pointY($point) +
|
|
|
|
|
(isset($totals['WIDTH']) ? $totals['WIDTH'] : 0);
|
|
|
|
|
|
|
|
|
|
$point['COLUMN_WIDTH'] = abs($point['MARKER_Y2'] -
|
|
|
|
|
$point['MARKER_Y1']) / count($this->_dataset);
|
|
|
|
|
|
|
|
|
|
$point['MARKER_Y'] = $point['MARKER_Y1'] +
|
|
|
|
|
((isset($totals['NUMBER']) ? $totals['NUMBER'] : 0) + 0.5) *
|
|
|
|
|
$point['COLUMN_WIDTH'];
|
|
|
|
|
|
|
|
|
|
$point['MARKER_X'] = $this->_pointX($point);
|
|
|
|
|
|
|
|
|
|
if ($this->_multiType == 'stacked') {
|
|
|
|
|
$point['MARKER_Y'] =
|
|
|
|
|
($point['MARKER_Y1'] + $point['MARKER_Y2']) / 2;
|
|
|
|
|
|
|
|
|
|
$P1 = array('Y' => $totals['SUM_Y'][$x]);
|
|
|
|
|
$P2 = array('Y' => $totals['SUM_Y'][$x] + $point['Y']);
|
|
|
|
|
|
|
|
|
|
$point['MARKER_X'] =
|
|
|
|
|
($this->_pointX($P1) + $this->_pointX($P2)) / 2;
|
|
|
|
|
} elseif ($this->_multiType == 'stacked100pct') {
|
|
|
|
|
$x = $point['X'];
|
|
|
|
|
if ($totals['TOTAL_Y'][$x] != 0) {
|
|
|
|
|
$point['MARKER_Y'] =
|
|
|
|
|
($point['MARKER_Y1'] + $point['MARKER_Y2']) / 2;
|
|
|
|
|
|
|
|
|
|
$P1 = array(
|
|
|
|
|
'Y' => 100 * $totals['SUM_Y'][$x] / $totals['TOTAL_Y'][$x]
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
$P2 = array(
|
|
|
|
|
'Y' => 100 * ($totals['SUM_Y'][$x] + $point['Y']) / $totals['TOTAL_Y'][$x]
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
$point['MARKER_X'] =
|
|
|
|
|
($this->_pointX($P1) + $this->_pointX($P2)) / 2;
|
|
|
|
|
} else {
|
|
|
|
|
$point = false;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else {
|
|
|
|
|
$point['MARKER_X1'] = $this->_pointX($point) -
|
|
|
|
|
(isset($totals['WIDTH']) ? $totals['WIDTH'] : 0);
|
|
|
|
|
|
|
|
|
|
$point['MARKER_X2'] = $this->_pointX($point) +
|
|
|
|
|
(isset($totals['WIDTH']) ? $totals['WIDTH'] : 0);
|
|
|
|
|
|
|
|
|
|
$point['COLUMN_WIDTH'] = abs($point['MARKER_X2'] -
|
|
|
|
|
$point['MARKER_X1']) / count($this->_dataset);
|
|
|
|
|
|
|
|
|
|
$point['MARKER_X'] = $point['MARKER_X1'] +
|
|
|
|
|
((isset($totals['NUMBER']) ? $totals['NUMBER'] : 0) + 0.5) *
|
|
|
|
|
$point['COLUMN_WIDTH'];
|
|
|
|
|
|
|
|
|
|
$point['MARKER_Y'] = $this->_pointY($point);
|
|
|
|
|
|
|
|
|
|
if ($this->_multiType == 'stacked') {
|
|
|
|
|
$point['MARKER_X'] =
|
|
|
|
|
($point['MARKER_X1'] + $point['MARKER_X2']) / 2;
|
|
|
|
|
|
|
|
|
|
$P1 = array('Y' => $totals['SUM_Y'][$x]);
|
|
|
|
|
$P2 = array('Y' => $totals['SUM_Y'][$x] + $point['Y']);
|
|
|
|
|
|
|
|
|
|
$point['MARKER_Y'] =
|
|
|
|
|
($this->_pointY($P1) + $this->_pointY($P2)) / 2;
|
|
|
|
|
} elseif ($this->_multiType == 'stacked100pct') {
|
|
|
|
|
$x = $point['X'];
|
|
|
|
|
if ($totals['TOTAL_Y'][$x] != 0) {
|
|
|
|
|
$point['MARKER_X'] =
|
|
|
|
|
($point['MARKER_X1'] + $point['MARKER_X2']) / 2;
|
|
|
|
|
|
|
|
|
|
$P1 = array(
|
|
|
|
|
'Y' => 100 * $totals['SUM_Y'][$x] / $totals['TOTAL_Y'][$x]
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
$P2 = array(
|
|
|
|
|
'Y' => 100 * ($totals['SUM_Y'][$x] + $point['Y']) / $totals['TOTAL_Y'][$x]
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
$point['MARKER_Y'] =
|
|
|
|
|
($this->_pointY($P1) + $this->_pointY($P2)) / 2;
|
|
|
|
|
} else {
|
|
|
|
|
$point = false;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return $point;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Draws markers on the canvas
|
|
|
|
|
*
|
|
|
|
|
* @access private
|
|
|
|
|
*/
|
|
|
|
|
function _drawMarker()
|
|
|
|
|
{
|
|
|
|
|
if (($this->_marker) && (is_array($this->_dataset))) {
|
|
|
|
|
$this->_canvas->startGroup(get_class($this) . '_marker');
|
|
|
|
|
|
|
|
|
|
$totals = $this->_getTotals();
|
|
|
|
|
$totals['WIDTH'] = $this->width() / ($this->_maximumX() + 2) / 2;
|
|
|
|
|
|
|
|
|
|
$number = 0;
|
|
|
|
|
$keys = array_keys($this->_dataset);
|
|
|
|
|
foreach ($keys as $key) {
|
|
|
|
|
$dataset =& $this->_dataset[$key];
|
|
|
|
|
$totals['MINIMUM_X'] = $dataset->minimumX();
|
|
|
|
|
$totals['MAXIMUM_X'] = $dataset->maximumX();
|
|
|
|
|
$totals['MINIMUM_Y'] = $dataset->minimumY();
|
|
|
|
|
$totals['MAXIMUM_Y'] = $dataset->maximumY();
|
|
|
|
|
$totals['NUMBER'] = $number ++;
|
|
|
|
|
$dataset->_reset();
|
|
|
|
|
while ($point = $dataset->_next()) {
|
|
|
|
|
$prevPoint = $dataset->_nearby(-2);
|
|
|
|
|
$nextPoint = $dataset->_nearby();
|
|
|
|
|
|
|
|
|
|
$x = $point['X'];
|
|
|
|
|
$y = $point['Y'];
|
|
|
|
|
if (((!is_object($this->_dataSelector)) ||
|
|
|
|
|
($this->_dataSelector->_select($point))) && ($point['Y'] !== null))
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
$point = $this->_getMarkerData(
|
|
|
|
|
$point,
|
|
|
|
|
$nextPoint,
|
|
|
|
|
$prevPoint,
|
|
|
|
|
$totals
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
if (is_array($point)) {
|
|
|
|
|
$this->_marker->_drawMarker(
|
|
|
|
|
$point['MARKER_X'],
|
|
|
|
|
$point['MARKER_Y'],
|
|
|
|
|
$point
|
|
|
|
|
);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (!isset($totals['SUM_Y'])) {
|
|
|
|
|
$totals['SUM_Y'] = array();
|
|
|
|
|
}
|
|
|
|
|
if (isset($totals['SUM_Y'][$x])) {
|
|
|
|
|
$totals['SUM_Y'][$x] += $y;
|
|
|
|
|
} else {
|
|
|
|
|
$totals['SUM_Y'][$x] = $y;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
unset($keys);
|
|
|
|
|
$this->_canvas->endGroup();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Get the minimum X value from the dataset
|
|
|
|
|
*
|
|
|
|
|
* @return double The minimum X value
|
|
|
|
|
* @access private
|
|
|
|
|
*/
|
|
|
|
|
function _minimumX()
|
|
|
|
|
{
|
|
|
|
|
if (!is_array($this->_dataset)) {
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
$min = false;
|
|
|
|
|
if (is_array($this->_dataset)) {
|
|
|
|
|
$keys = array_keys($this->_dataset);
|
|
|
|
|
foreach ($keys as $key) {
|
|
|
|
|
if ($min === false) {
|
|
|
|
|
$min = $this->_dataset[$key]->minimumX();
|
|
|
|
|
} else {
|
|
|
|
|
$min = min($min, $this->_dataset[$key]->minimumX());
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
unset($keys);
|
|
|
|
|
}
|
|
|
|
|
return $min;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Get the maximum X value from the dataset
|
|
|
|
|
*
|
|
|
|
|
* @return double The maximum X value
|
|
|
|
|
* @access private
|
|
|
|
|
*/
|
|
|
|
|
function _maximumX()
|
|
|
|
|
{
|
|
|
|
|
if (!is_array($this->_dataset)) {
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
$max = 0;
|
|
|
|
|
if (is_array($this->_dataset)) {
|
|
|
|
|
$keys = array_keys($this->_dataset);
|
|
|
|
|
foreach ($keys as $key) {
|
|
|
|
|
$max = max($max, $this->_dataset[$key]->maximumX());
|
|
|
|
|
}
|
|
|
|
|
unset($keys);
|
|
|
|
|
}
|
|
|
|
|
return $max;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Get the minimum Y value from the dataset
|
|
|
|
|
*
|
|
|
|
|
* @return double The minimum Y value
|
|
|
|
|
* @access private
|
|
|
|
|
*/
|
|
|
|
|
function _minimumY()
|
|
|
|
|
{
|
|
|
|
|
if (!is_array($this->_dataset)) {
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
$min = false;
|
|
|
|
|
if (is_array($this->_dataset)) {
|
|
|
|
|
$keys = array_keys($this->_dataset);
|
|
|
|
|
foreach ($keys as $key) {
|
|
|
|
|
if ($this->_multiType == 'normal') {
|
|
|
|
|
if ($min === false) {
|
|
|
|
|
$min = $this->_dataset[$key]->minimumY();
|
|
|
|
|
} else {
|
|
|
|
|
$min = min($min, $this->_dataset[$key]->minimumY());
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
if ($min === false) {
|
|
|
|
|
$min = 0;
|
|
|
|
|
}
|
|
|
|
|
$dataset =& $this->_dataset[$key];
|
|
|
|
|
$dataset->_reset();
|
|
|
|
|
while ($point = $dataset->_next()) {
|
|
|
|
|
if ($point['Y'] < 0) {
|
|
|
|
|
$x = $point['X'];
|
|
|
|
|
if ((!isset($total)) || (!isset($total[$x]))) {
|
|
|
|
|
$total[$x] = $point['Y'];
|
|
|
|
|
} else {
|
|
|
|
|
$total[$x] += $point['Y'];
|
|
|
|
|
}
|
|
|
|
|
if (isset($min)) {
|
|
|
|
|
$min = min($min, $total[$x]);
|
|
|
|
|
} else {
|
|
|
|
|
$min = $total[$x];
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
unset($keys);
|
|
|
|
|
}
|
|
|
|
|
return $min;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Get the maximum Y value from the dataset
|
|
|
|
|
*
|
|
|
|
|
* @return double The maximum Y value
|
|
|
|
|
* @access private
|
|
|
|
|
*/
|
|
|
|
|
function _maximumY()
|
|
|
|
|
{
|
|
|
|
|
if ($this->_multiType == 'stacked100pct') {
|
|
|
|
|
return 100;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
$maxY = 0;
|
|
|
|
|
if (is_array($this->_dataset)) {
|
|
|
|
|
$keys = array_keys($this->_dataset);
|
|
|
|
|
foreach ($keys as $key) {
|
|
|
|
|
$dataset =& $this->_dataset[$key];
|
|
|
|
|
|
|
|
|
|
if ($this->_multiType == 'normal') {
|
|
|
|
|
if (isset($maxY)) {
|
|
|
|
|
$maxY = max($maxY, $dataset->maximumY());
|
|
|
|
|
} else {
|
|
|
|
|
$maxY = $dataset->maximumY();
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
$dataset->_reset();
|
|
|
|
|
while ($point = $dataset->_next()) {
|
|
|
|
|
if ($point['Y'] > 0) {
|
|
|
|
|
$x = $point['X'];
|
|
|
|
|
if ((!isset($total)) || (!isset($total[$x]))) {
|
|
|
|
|
$total[$x] = $point['Y'];
|
|
|
|
|
} else {
|
|
|
|
|
$total[$x] += $point['Y'];
|
|
|
|
|
}
|
|
|
|
|
if (isset($maxY)) {
|
|
|
|
|
$maxY = max($maxY, $total[$x]);
|
|
|
|
|
} else {
|
|
|
|
|
$maxY = $total[$x];
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
unset($keys);
|
|
|
|
|
}
|
|
|
|
|
return $maxY;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Get the X pixel position represented by a value
|
|
|
|
|
*
|
|
|
|
|
* @param double $point The value to get the pixel-point for
|
|
|
|
|
* @return double The pixel position along the axis
|
|
|
|
|
* @access private
|
|
|
|
|
*/
|
|
|
|
|
function _pointX($point)
|
|
|
|
|
{
|
|
|
|
|
$point['AXIS_Y'] = $this->_axisY;
|
|
|
|
|
return parent::_pointX($point);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Get the Y pixel position represented by a value
|
|
|
|
|
*
|
|
|
|
|
* @param double $point the value to get the pixel-point for
|
|
|
|
|
* @return double The pixel position along the axis
|
|
|
|
|
* @access private
|
|
|
|
|
*/
|
|
|
|
|
function _pointY($point)
|
|
|
|
|
{
|
|
|
|
|
$point['AXIS_Y'] = $this->_axisY;
|
|
|
|
|
return parent::_pointY($point);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Update coordinates
|
|
|
|
|
*
|
|
|
|
|
* @access private
|
|
|
|
|
*/
|
|
|
|
|
function _updateCoords()
|
|
|
|
|
{
|
|
|
|
|
$this->_setCoords($this->_parent->_plotLeft, $this->_parent->_plotTop, $this->_parent->_plotRight, $this->_parent->_plotBottom);
|
|
|
|
|
parent::_updateCoords();
|
|
|
|
|
}
|
|
|
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/**
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* Get the dataset
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*
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* @return Image_Graph_Dataset The dataset(s)
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*/
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function &dataset()
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{
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return $this->_dataset;
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}
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/**
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* Calulate totals
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*
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* @return array An associated array with the totals
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* @access private
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*/
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function _getTotals()
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{
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$total = array(
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'MINIMUM_X' => $this->_minimumX(),
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'MAXIMUM_X' => $this->_maximumX(),
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'MINIMUM_Y' => $this->_minimumY(),
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'MAXIMUM_Y' => $this->_maximumY()
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);
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$total['ALL_SUM_Y'] = 0;
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$keys = array_keys($this->_dataset);
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foreach ($keys as $key) {
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$dataset =& $this->_dataset[$key];
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$dataset->_reset();
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while ($point = $dataset->_next()) {
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$x = $point['X'];
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if (is_numeric($point['Y'])) {
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$total['ALL_SUM_Y'] += $point['Y'];
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if (isset($total['TOTAL_Y'][$x])) {
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$total['TOTAL_Y'][$x] += $point['Y'];
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} else {
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$total['TOTAL_Y'][$x] = $point['Y'];
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}
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}
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if (is_numeric($point['X'])) {
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if (isset($total['TOTAL_X'][$x])) {
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$total['TOTAL_X'][$x] += $point['X'];
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} else {
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$total['TOTAL_X'][$x] = $point['X'];
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}
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}
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}
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}
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unset($keys);
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return $total;
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}
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/**
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* Perform the actual drawing on the legend.
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*
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* @param int $x0 The top-left x-coordinate
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* @param int $y0 The top-left y-coordinate
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* @param int $x1 The bottom-right x-coordinate
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* @param int $y1 The bottom-right y-coordinate
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* @access private
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*/
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function _drawLegendSample($x0, $y0, $x1, $y1)
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{
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$this->_canvas->rectangle(array('x0' => $x0, 'y0' => $y0, 'x1' => $x1, 'y1' => $y1));
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}
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/**
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* Draw a sample for use with legend
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*
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* @param array $param The parameters for the legend
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* @access private
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*/
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function _legendSample(&$param)
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{
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if (!is_array($this->_dataset)) {
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return false;
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}
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if (is_a($this->_fillStyle, 'Image_Graph_Fill')) {
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$this->_fillStyle->_reset();
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}
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$count = 0;
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$keys = array_keys($this->_dataset);
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foreach ($keys as $key) {
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$dataset =& $this->_dataset[$key];
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$count++;
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$caption = ($dataset->_name ? $dataset->_name : $this->_title);
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$this->_canvas->setFont($param['font']);
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$width = 20 + $param['width'] + $this->_canvas->textWidth($caption);
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$param['maxwidth'] = max($param['maxwidth'], $width);
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$x2 = $param['x'] + $width;
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$y2 = $param['y'] + $param['height'] + 5;
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if ((($param['align'] & IMAGE_GRAPH_ALIGN_VERTICAL) != 0) && ($y2 > $param['bottom'])) {
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$param['y'] = $param['top'];
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$param['x'] = $x2;
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$y2 = $param['y'] + $param['height'];
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} elseif ((($param['align'] & IMAGE_GRAPH_ALIGN_VERTICAL) == 0) && ($x2 > $param['right'])) {
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$param['x'] = $param['left'];
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$param['y'] = $y2;
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$x2 = $param['x'] + 20 + $param['width'] + $this->_canvas->textWidth($caption);
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}
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|
$x = $x0 = $param['x'];
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$y = $param['y'];
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$y0 = $param['y'];
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$x1 = $param['x'] + $param['width'];
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$y1 = $param['y'] + $param['height'];
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|
if (!isset($param['simulate'])) {
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|
|
$this->_getFillStyle($key);
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|
$this->_getLineStyle();
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|
$this->_drawLegendSample($x0, $y0, $x1, $y1);
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|
|
if (($this->_marker) && ($dataset) && ($param['show_marker'])) {
|
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|
|
$dataset->_reset();
|
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|
|
$point = $dataset->_next();
|
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|
|
$prevPoint = $dataset->_nearby(-2);
|
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|
|
$nextPoint = $dataset->_nearby();
|
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|
|
$tmp = array();
|
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|
|
|
$point = $this->_getMarkerData($point, $nextPoint, $prevPoint, $tmp);
|
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|
|
|
if (is_array($point)) {
|
|
|
|
|
$point['MARKER_X'] = $x+$param['width']/2;
|
|
|
|
|
$point['MARKER_Y'] = $y;
|
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|
|
|
unset ($point['AVERAGE_Y']);
|
|
|
|
|
$this->_marker->_drawMarker($point['MARKER_X'], $point['MARKER_Y'], $point);
|
|
|
|
|
}
|
|
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|
|
}
|
|
|
|
|
$this->write($x + $param['width'] + 10, $y + $param['height'] / 2, $caption, IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_LEFT, $param['font']);
|
|
|
|
|
}
|
|
|
|
|
|
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|
|
|
if (($param['align'] & IMAGE_GRAPH_ALIGN_VERTICAL) != 0) {
|
|
|
|
|
$param['y'] = $y2;
|
|
|
|
|
} else {
|
|
|
|
|
$param['x'] = $x2;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
unset($keys);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
2008-11-26 22:50:40 +00:00
|
|
|
?>
|
