public function parseGlobalOptions(stdClass $a_options, ilChart $a_chart)
{
$spider = new stdClass();
$spider->active = true;
$spider->highlight = new stdClass();
$spider->highlight->mode = "line";
$spider->legs = new stdClass();
$spider->legs->fillStyle = ilChart::renderColor("#000", "0.7");
switch (count($a_chart->getLegLabels())) {
case 4:
case 6:
$spider->legs->legStartAngle = 10;
break;
default:
$spider->legs->legStartAngle = 0;
break;
}
$spider->legs->data = array();
$max_str_len = 0;
foreach ($a_chart->getLegLabels() as $l) {
$l = ilUtil::shortenText($l, 80, true);
$label = new stdClass();
$label->label = $l;
$spider->legs->data[] = $label;
$max_str_len = max($max_str_len, strlen($l));
}
// depending on caption length
if ($max_str_len > 60) {
$font_size = 10;
} else {
if ($max_str_len > 30) {
$font_size = 12;
} else {
$font_size = 15;
}
}
$spider->legs->font = $font_size . "px Arial";
$spider->spiderSize = 0.7;
$spider->lineWidth = 1;
$spider->pointSize = 0;
$spider->connection = new StdClass();
$spider->connection->width = 2;
$spider->legMin = 1.0E-7;
$spider->legMax = $a_chart->getYAxisMax();
$a_options->series->spider = $spider;
}
