I am trying to change the Overview Graph so that it shows me all Courses of a single User on the X-Axis (Course1, Course2...) and the Points of each Course on the Y-Axis (1...100 Points).
I had no problem changing the X-Axis, but have no idea how to change the Y-Axis because there are parts of the code that i didn't find in graphlib.php and don't even now what they are doing...
I have to change the following code parts:
| $line->y_format['allusers'] = array( |
| 'colour' => 'red', |
| 'bar' => 'fill', |
| 'shadow_offset' => 1, |
| 'legend' => get_string('allparticipants') |
| ); |
| $line->y_data['allusers'] = quiz_report_grade_bands($bandwidth, $bands, $quizid, $groupusers); |
| $line->y_order = array('allusers'); |
| $ymax = max($line->y_data['allusers']); |
| $line->parameter['y_min_left'] = 0; |
| $line->parameter['y_max_left'] = $ymax; |
| $line->parameter['y_decimal_left'] = 0; |
| // Pick a sensible number of gridlines depending on max value on graph. |
| $gridlines = $ymax; |
| while ($gridlines >= 10) { |
| if ($gridlines >= 50) { |
| $gridlines /= 5; |
| } else { |
| $gridlines /= 2; |
| } |
When I change the slightest here, the graph image isn't showing anymore..
I think it has to do with ['allusers'].
Can someone explain to me what I have to do with y_data to change the Y-Axis?
What I did was simply like I have done in the X-Axis before:
X-Axis
for ($i=0; $i<=($SESSION['coursecount'] -1); $i++) {
$bandlabels[] = $_SESSION['coursename'][$i];
}
$line->x_data = $bandlabels;
Y-Axis
$bandlabels_y = array ();
for($j=0; $j<=100; $j+=10) {
bandlabels_y [] = $j; //to show the points like: "0, 10, 20, 30,...,100"
}
in the moodle overviewgraph this line looks like that:
$line->y_data['allusers'] = quiz_report_grade_bands($bandwidth, $bands, $quizid, $groupusers);
I just have no idea what to do with ['allusers'] ???
Could need some help here