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+<?php
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+/**
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+ * This file is part of evaluation graph block plugin for dashboard,
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+ * it should be required inside dashboard controller for showing it into dashboard interface from plattform
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+ * @package chamilo.dashboard
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+ * @author Christian Fasanando
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+ */
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+
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+/**
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+ * required files for getting data
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+ */
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+require_once api_get_path(LIBRARY_PATH).'usermanager.lib.php';
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+require_once api_get_path(LIBRARY_PATH).'course.lib.php';
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+require_once api_get_path(LIBRARY_PATH).'tracking.lib.php';
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+require_once api_get_path(LIBRARY_PATH).'attendance.lib.php';
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+require_once api_get_path(LIBRARY_PATH).'sessionmanager.lib.php';
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+require_once api_get_path(LIBRARY_PATH).'pchart/pData.class.php';
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+require_once api_get_path(LIBRARY_PATH).'pchart/pChart.class.php';
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+require_once api_get_path(LIBRARY_PATH).'pchart/pCache.class.php';
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+
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+require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be/gradebookitem.class.php';
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+require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be/evaluation.class.php';
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+require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be/result.class.php';
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+require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be/linkfactory.class.php';
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+require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/flatview_data_generator.class.php';
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+require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/scoredisplay.class.php';
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+require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/gradebook_functions.inc.php';
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+
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+require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be/category.class.php';
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+
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+
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+/**
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+ * This class is used like controller for this evaluations graph block plugin,
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+ * the class name must be registered inside path.info file (e.g: controller = "BlockEvaluationGraph"), so dashboard controller will be instantiate it
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+ * @package chamilo.dashboard
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+ */
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+class BlockEvaluationGraph extends Block {
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+
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+ private $user_id;
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+ private $sessions;
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+ private $path;
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+
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+ /**
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+ * Constructor
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+ */
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+ public function __construct ($user_id) {
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+
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+ /*
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+ $this->user_id = $user_id;
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+ if (api_is_platform_admin()) {
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+ $this->sessions = SessionManager::get_sessions_list();
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+ } else if (api_is_drh()) {
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+ $this->sessions = SessionManager::get_sessions_followed_by_drh($user_id);
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+ }
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+ $this->path = 'block_evaluation_graph';
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+ */
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+ }
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+
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+ /**
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+ * This method return content html containing information about sessions and its position for showing it inside dashboard interface
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+ * it's important to use the name 'get_block' for beeing used from dashboard controller
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+ * @return array column and content html
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+ */
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+ public function get_block() {
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+
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+ global $charset;
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+
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+ $column = 1;
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+ $data = array();
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+
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+ /*
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+ if (api_is_platform_admin()) {
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+ $student_content_html = $this->get_students_content_html_for_platform_admin();
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+ } else if (api_is_drh()) {*/
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+ $evaluations_graph = $this->get_evaluations_graph();
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+ //}
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+
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+ $html = '
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+ <li class="widget color-orange" id="intro">
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+ <div class="widget-head">
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+ <h3>'.get_lang('EvaluatiosGraph').'</h3>
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+ <div class="widget-actions"><a onclick="javascript:if(!confirm(\''.addslashes(api_htmlentities(get_lang('ConfirmYourChoice'),ENT_QUOTES,$charset)).'\')) return false;" href="index.php?action=disable_block&path='.$this->path.'">'.Display::return_icon('close.gif',get_lang('Close')).'</a></div>
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+ </div>
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+ <div class="widget-content" align="center">
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+ '.$evaluations_graph.'
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+ </div>
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+ </li>
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+ ';
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+
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+ $data['column'] = $column;
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+ $data['content_html'] = $html;
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+
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+ return $data;
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+
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+ }
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+
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+ /**
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+ * This method return a graph containing informations about evaluations, it's used inside get_block method for showing it inside dashboard interface
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+ * @return string img html
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+ */
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+ public function get_evaluations_graph() {
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+
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+
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+
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+ /*
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+ $graph = '';
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+
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+ $course_code = 'CURSO1';
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+ $cats = Category::load(null, null, $course_code, null, null, null, false);
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+
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+ $alleval = $cats[0]->get_evaluations(null, true, 'CURSO1');
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+ $alllinks = $cats[0]->get_links(null, true);
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+ $users = get_all_users($alleval, $alllinks);
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+ $printable_data = get_evaluation_sumary_result($users, $alleval, $alllinks);
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+
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+ //var_dump($printable_data);
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+
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+ /*
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+ $links = array();
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+ $i = 1;
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+ foreach ($printable_data[0] as $link) {
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+ if ($i>2) $links[$i] = $link;
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+ $i++;
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+ }
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+
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+
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+ foreach ($printable_data[1] as $score) {
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+ $x = 1;
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+ $scores = array();
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+ foreach($score as $sc) {
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+ if ($x>2) $scores[][$i][] = $sc;
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+ $x++;
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+
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+ }
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+
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+ }
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+ */
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+
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+
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+ // Dataset definition
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+ $data_set = new pData;
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+ $data_set->AddPoint(array(3,15,15,8,15),"Serie1");
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+ $data_set->AddPoint(array(7,8.5,8.5,5,10),"Serie2");
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+ $data_set->AddPoint(array(2,2,2,2,5),"Serie3");
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+ $data_set->AddPoint(array('eje1','eje2','forito','tareita','leccion'),"Serie4");
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+
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+ //$data_set->AddAllSeries();
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+ //$data_set->SetAbsciseLabelSerie();
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+
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+ $data_set->AddAllSeries();
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+ $data_set->RemoveSerie("Serie4");
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+ $data_set->SetAbsciseLabelSerie("Serie4");
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+
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+
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+ $data_set->SetSerieName("Maximum","Serie1");
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+ $data_set->SetSerieName("Average","Serie2");
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+ $data_set->SetSerieName("Minimum","Serie3");
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+
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+
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+ $graph_id = $this->user_id.'StudentEvaluationGraph';
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+ $cache = new pCache();
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+ // the graph id
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+ $data = $data_set->GetData();
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+
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+ if ($cache->IsInCache($graph_id, $data)) {
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+ //if we already created the img
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+ $img_file = $cache->GetHash($graph_id, $data);
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+ } else {
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+ // Initialise the graph
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+ $test = new pChart(450,230);
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+ $test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',8);
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+ $test->setGraphArea(50,30,330,200);
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+ $test->drawFilledRoundedRectangle(7,7,343,223,5,240,240,240);
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+ $test->drawRoundedRectangle(5,5,345,225,5,230,230,230);
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+ $test->drawGraphArea(255,255,255,TRUE);
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+ $test->drawScale($data_set->GetData(),$data_set->GetDataDescription(),SCALE_ADDALL,150,150,150,TRUE,0,2,TRUE);
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+ $test->drawGrid(4,TRUE,230,230,230,50);
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+
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+ // Draw the 0 line
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+ $test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',6);
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+ $test->drawTreshold(0,143,55,72,TRUE,TRUE);
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+
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+ // Draw the bar graph
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+ $test->drawStackedBarGraph($data_set->GetData(),$data_set->GetDataDescription(),TRUE);
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+
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+ // Finish the graph
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+ $test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',8);
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+ $test->drawLegend(596,150,$data_set->GetDataDescription(),255,255,255);
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+ $test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',10);
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+ $test->drawTitle(50,22,"Example 20",50,50,50,185);
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+
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+ $cache->WriteToCache($graph_id, $data_set->GetData(), $test);
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+ ob_start();
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+ $test->Stroke();
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+ ob_end_clean();
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+ $img_file = $cache->GetHash($graph_id, $data_set->GetData());
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+ }
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+
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+ if (!empty($img_file)) {
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+ $graph = '<img src="'.api_get_path(WEB_ARCHIVE_PATH).$img_file.'">';
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+ }
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+
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+ return $graph;
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+
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+ }
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+
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+
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+}
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+?>
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