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https://github.com/fsr/eseeva
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refactors analysis page
also: documentation!
This commit is contained in:
Lucas Woltmann
parent
db9faaf3d9
commit
8aca14df24
3 changed files with 140 additions and 132 deletions
79
analysis.php
79
analysis.php
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@ -10,7 +10,7 @@
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include_once 'libs/formLib.php';
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include_once 'libs/questionnaireLib.php';
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include_once 'libs/loggingLib.php';
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include_once 'libs/chartLib.php';
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include_once 'libs/chartLib.php';
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// variables for the log data
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$questionData;
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@ -63,42 +63,18 @@
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echo " <div class=\"col-sm-4\">\n";
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echo " <div class=\"row\">\n";
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$width = 800;
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$height = 300;
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$width = 800;
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$height = 300;
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//find max of answers to set max of x-axis, max of y-axis is always seven, because there are six possibilities to answer
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$values = $question;
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array_shift($values);
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$maxX = max($values)+1;
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$maxY = 7;
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$img = CreateImage($width, $height);
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// the amount of answers for the different options and a nice group of bars
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for ($i = 1; $i < 7; $i++)
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{
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echo " <div class=\"col-2\"><p class=\"lead center\">" . $question[$i] . "</p></div>\n";
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$green = 150*($question[$i]/$maxX) + 40;
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$color = ImageColorAllocate($img, 0.57 * $green, $green, 0.45 * $green);
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DrawBar($img, $question[$i], $maxX, $i+1, $maxY, $question[$i], $color);
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}
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//finish image and save it
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$caption = array("N/A","--","-", "0", "+", "++");
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DrawCoords($img, $maxX, $maxY, $caption);
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$file=str_replace("?", "", str_replace(" ", "", $question[0]));
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ImagePNG($img,"question".$file.".png");
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ImageDestroy($img);
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$file = CreateQuestionBar($width, $height, $question);
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echo " </div>\n";
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echo " </div>\n";
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echo " <div class=\"col-sm-3\">\n";
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echo " </div>\n";
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echo " <div class=\"col-sm-9\">\n";
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echo " <img src=\"question".$file.".png\" class=\"lead center\">";
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echo " </div>\n";
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echo " <div class=\"col-sm-3\">\n";
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echo " </div>\n";
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echo " <div class=\"col-sm-9\">\n";
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echo " <img src=\"".$file."\" class=\"lead center\">";
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echo " </div>\n";
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echo "</div>\n";
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}
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}
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@ -126,39 +102,18 @@
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echo " <div class=\"col-sm-4\">\n";
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echo " <div class=\"row\">\n";
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$width = 800;
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$height = 300;
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$width = 800;
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$height = 300;
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//find max of answers to set max of x-axis, max of y-axis is always seven, because there are six possibilities to answer
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$maxX = max($tutor)+1;
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$maxY = 7;
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$img = CreateImage($width, $height);
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// the amount of answers for the different options and a picture
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for ($i = 0; $i < 6; $i++)
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{
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echo " <div class=\"col-2\"><p class=\"lead center\">" . $tutor[$i] . "</p></div>\n";
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$green = 150*($tutor[$i]/$maxX) + 40;
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$color = ImageColorAllocate($img, 0.54 * $green, $green, 0.45 * $green);
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DrawBar($img, $tutor[$i], $maxX, $i+2, $maxY, $tutor[$i], $color);
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}
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//finish image and save it
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$caption = array("N/A","--","-", "0", "+", "++");
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DrawCoords($img, $maxX, $maxY, $caption);
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$file = str_replace(" ", "", $tutorName);
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ImagePNG($img,"tutor".$file.".png");
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ImageDestroy($img);
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$file = CreateTutorBar($width, $height, $tutorName, $tutor);
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echo " </div>\n";
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echo " </div>\n";
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echo " <div class=\"col-sm-3\">\n";
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echo " </div>\n";
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echo " <div class=\"col-sm-9\">\n";
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echo " <img src=\"tutor".$file.".png\" class=\"lead center\">";
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echo " </div>\n";
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echo " <div class=\"col-sm-3\">\n";
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echo " </div>\n";
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echo " <div class=\"col-sm-9\">\n";
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echo " <img src=\"".$file."\" class=\"lead center\">";
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echo " </div>\n";
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echo "</div>\n";
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}
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@ -63,42 +63,18 @@
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echo " <div class=\"col-sm-4\">\n";
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echo " <div class=\"row\">\n";
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$width = 800;
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$height = 300;
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$width = 800;
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$height = 300;
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//find max of answers to set max of x-axis, max of y-axis is always seven, because there are six possibilities to answer
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$values = $question;
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array_shift($values);
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$maxX = max($values)+1;
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$maxY = 7;
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$img = CreateImage($width, $height);
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// the amount of answers for the different options and a nice group of bars
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for ($i = 1; $i < 7; $i++)
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{
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echo " <div class=\"col-2\"><p class=\"lead center\">" . $question[$i] . "</p></div>\n";
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$green = 150*($question[$i]/$maxX) + 40;
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$color = ImageColorAllocate($img, 0.57 * $green, $green, 0.45 * $green);
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DrawBar($img, $question[$i], $maxX, $i+1, $maxY, $question[$i], $color);
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}
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//finish image and save it
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$caption = array("N/A","--","-", "0", "+", "++");
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DrawCoords($img, $maxX, $maxY, $caption);
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$file=str_replace("?", "", str_replace(" ", "", $question[0]));
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ImagePNG($img,"question".$file.".png");
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ImageDestroy($img);
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$file = CreateQuestionBar($width, $height, $question);
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echo " </div>\n";
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echo " </div>\n";
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echo " <div class=\"col-sm-3\">\n";
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echo " </div>\n";
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echo " <div class=\"col-sm-9\">\n";
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echo " <img src=\"question".$file.".png\" class=\"lead center\">";
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echo " </div>\n";
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echo " <div class=\"col-sm-3\">\n";
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echo " </div>\n";
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echo " <div class=\"col-sm-9\">\n";
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echo " <img src=\"".$file."\" class=\"lead center\">";
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echo " </div>\n";
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echo "</div>\n";
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}
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}
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@ -126,39 +102,18 @@
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echo " <div class=\"col-sm-4\">\n";
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echo " <div class=\"row\">\n";
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$width = 800;
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$height = 300;
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$width = 800;
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$height = 300;
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//find max of answers to set max of x-axis, max of y-axis is always seven, because there are six possibilities to answer
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$maxX = max($tutor)+1;
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$maxY = 7;
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$img = CreateImage($width, $height);
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// the amount of answers for the different options and a picture
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for ($i = 0; $i < 6; $i++)
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{
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echo " <div class=\"col-2\"><p class=\"lead center\">" . $tutor[$i] . "</p></div>\n";
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$green = 150*($tutor[$i]/$maxX) + 40;
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$color = ImageColorAllocate($img, 0.54 * $green, $green, 0.45 * $green);
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DrawBar($img, $tutor[$i], $maxX, $i+2, $maxY, $tutor[$i], $color);
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}
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//finish image and save it
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$caption = array("N/A","--","-", "0", "+", "++");
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DrawCoords($img, $maxX, $maxY, $caption);
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$file = str_replace(" ", "", $tutorName);
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ImagePNG($img,"tutor".$file.".png");
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ImageDestroy($img);
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$file = CreateTutorBar($width, $height, $tutorName, $tutor);
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echo " </div>\n";
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echo " </div>\n";
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echo " <div class=\"col-sm-3\">\n";
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echo " </div>\n";
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echo " <div class=\"col-sm-9\">\n";
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echo " <img src=\"tutor".$file.".png\" class=\"lead center\">";
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echo " </div>\n";
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echo " <div class=\"col-sm-3\">\n";
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echo " </div>\n";
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echo " <div class=\"col-sm-9\">\n";
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echo " <img src=\"".$file."\" class=\"lead center\">";
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echo " </div>\n";
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echo "</div>\n";
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}
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@ -1,12 +1,20 @@
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<?php
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//============================================================================
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//===============================================================================
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// Name : chartLib.php
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// Author : Lucas Woltmann
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// Version : 1.0
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// Date : 08-2013
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// Description : Provides functions for creating beautiful and astonishing charts
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//============================================================================
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//===============================================================================
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/**
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* Draws x- and y-axis onto image.
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*
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* @param image $image The image to draw on.
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* @param integer $XLength Max x value.
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* @param integer $YLength Max y value.
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* @param array $values Captions for y-axis.
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*/
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function DrawCoords($image, $XLength, $YLength, $values)
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{
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$width = ImageSX($image);
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@ -79,8 +87,18 @@ function DrawCoords($image, $XLength, $YLength, $values)
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$index++;
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}
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}
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function DrawBar($image, $length, $maxOfX ,$position, $maxOfY, $value, $color)
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/**
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* Draws a bar onto the image.
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*
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* @param image $image The image to draw on.
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* @param integer $length Value of the bar.
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* @param integer $maxOfX Max x value.
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* @param integer $position Index of the column on the axis.
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* @param integer $maxOfY Max y value.
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* @param string $value Label for the bar.
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* @param color $color Well, have a guess!
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*/
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function DrawBar($image, $length, $maxOfX, $position, $maxOfY, $value, $color)
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{
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$imgWidth = ImageSX($image);
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$imgHeight = ImageSY($image);
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@ -103,7 +121,12 @@ function DrawBar($image, $length, $maxOfX ,$position, $maxOfY, $value, $color)
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ImageFilledRectangle($image, $left, $upper, $right, $upper-$Yoffset, $color);
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ImageString($image, 4, $right+($Xoffset/3), $upper-$Yoffset*0.7, $value, $black);
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}
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/**
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* Creates and returns a new blank image.
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*
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* @param integer $width The desired width of the image.
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* @param integer $height The desired height of the image.
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*/
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function CreateImage($width, $height)
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{
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$image = ImageCreate($width, $height);
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@ -114,4 +137,79 @@ function CreateImage($width, $height)
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return $image;
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}
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/**
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* Creates a new bar plot for the given question data. Returns name of saved png file.
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*
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* @param integer $width The desired width of the image.
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* @param integer $height The desired height of the image.
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* @param array $question The question data.
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*/
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function CreateQuestionBar($width, $height, $question)
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{
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//find max of answers to set max of x-axis, max of y-axis is always seven, because there are six possibilities to answer
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$values = $question;
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array_shift($values);
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$maxX = max($values)+1;
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$maxY = 7;
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$img = CreateImage($width, $height);
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// the amount of answers for the different options and a nice group of bars
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for ($i = 1; $i < 7; $i++)
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{
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echo " <div class=\"col-2\"><p class=\"lead center\">" . $question[$i] . "</p></div>\n";
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$green = 150*($question[$i]/$maxX) + 40;
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$color = ImageColorAllocate($img, 0.57 * $green, $green, 0.45 * $green);
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DrawBar($img, $question[$i], $maxX, $i+1, $maxY, $question[$i], $color);
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}
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//finish image and save it
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$caption = array("N/A","--","-", "0", "+", "++");
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DrawCoords($img, $maxX, $maxY, $caption);
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$file = str_replace("?", "", str_replace(" ", "", $question[0]));
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$file = "question".$file.".png";
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ImagePNG($img, $file);
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ImageDestroy($img);
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return $file;
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}
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/**
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* Creates a new bar plot for the given tutor data. Returns name of saved png file.
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*
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* @param integer $width The desired width of the image.
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* @param integer $height The desired height of the image.
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* @param string $title The file name of the image. (Should be tutor's name)
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* @param array $tutor The tutor data.
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*/
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function CreateTutorBar($width, $height, $title, $tutor)
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{
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//find max of answers to set max of x-axis, max of y-axis is always seven, because there are six possibilities to answer
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$maxX = max($tutor)+1;
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$maxY = 7;
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$img = CreateImage($width, $height);
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// the amount of answers for the different options and a picture
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for ($i = 0; $i < 6; $i++)
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{
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echo " <div class=\"col-2\"><p class=\"lead center\">" . $tutor[$i] . "</p></div>\n";
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$green = 150*($tutor[$i]/$maxX) + 40;
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$color = ImageColorAllocate($img, 0.54 * $green, $green, 0.45 * $green);
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DrawBar($img, $tutor[$i], $maxX, $i+2, $maxY, $tutor[$i], $color);
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}
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//finish image and save it
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$caption = array("N/A","--","-", "0", "+", "++");
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DrawCoords($img, $maxX, $maxY, $caption);
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$file = str_replace(" ", "", $title);
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$file = "tutor".$file.".png";
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ImagePNG($img, $file);
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ImageDestroy($img);
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return $file;
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}
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?>
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