/**
* Compile Tree datas
*
* @param $datas, ex :
* array(
* 'key1' => array('key1.1' => val, 'key1.2' => val, 'key1.3' => val),
* 'key2' => array('key2.1' => val, 'key2.2' => val, 'key2.3' => val)
* )
* @param $unit, ex : '%', 'Kg' (optionnal)
* @return nothing
*/
function initDatasTree($datas, $unit = '')
{
$datas = PluginMreportingCommon::compileDatasForUnit($datas, $unit);
echo "var datas = " . json_encode($datas) . ";";
echo "var sum = " . PluginMreportingMisc::getArraySum($datas) . ";";
return $datas;
}
function drawSunburstLevel($image, $datas, $params = array())
{
global $LANG;
$width = $params['width'] - 70;
$height = $params['height'] - 120;
$gsum = PluginMreportingMisc::getArraySum($datas);
$index = 0;
$x = $width / 2;
$y = $height / 2 + 60;
$params['depth'] = isset($params['depth']) ? $params['depth'] : PluginMreportingMisc::getArrayDepth($datas);
$params['start_angle'] = isset($params['start_angle']) ? $params['start_angle'] : 0;
$params['max_angle'] = isset($params['max_angle']) ? $params['max_angle'] : 360;
$params['level'] = isset($params['level']) ? $params['level'] : 0;
$params['current_index'] = isset($params['current_index']) ? $params['current_index'] : false;
$step = $height / $params['depth'];
$radius = $step * ($params['level'] + 1);
$darkerpalette = self::getDarkerPalette();
foreach ($datas as $key => $data) {
if (is_array($data)) {
arsort($data);
$params2 = array();
$params2 = $params;
$sum = PluginMreportingMisc::getArraySum($data);
$angle = $params['max_angle'] * $sum / $gsum;
$params2['max_angle'] = $angle;
$params2['start_angle'] = $params['start_angle'];
$params2['level'] = $params['level'] + 1;
$params2['current_index'] = $params['current_index'] === false ? $index : $params['current_index'];
$this->drawSunburstLevel($image, $data, $params2);
} else {
$angle = $params['max_angle'] * $data / $gsum;
}
//get colors
$palette = $this->getPalette(5);
if ($params['current_index'] === false) {
$color = $palette[$index];
} else {
$color = $palette[$params['current_index']];
//get lighter color
$color = "0x00" . substr(self::lighter($color, 15 * $params['level'] * $index), 0, 6);
}
$darkercolor = "0x00" . substr(self::darker($color), 0, 6);
$color_rbg = self::colorHexToRGB($color);
$darkercolor_rbg = self::colorHexToRGB($darkercolor);
//show data arc (tow arcs : 1st border color, 2nd content color)
//(Never use deg2rad() in loops, use $rad = ($deg * M_PI / 180) instead which is faster!)
imageSmoothArc($image, $x, $y, $radius + 1, $radius + 1, $darkercolor_rbg, $params['start_angle'] * M_PI / 180, ($params['start_angle'] + $angle) * M_PI / 180);
imageSmoothArc($image, $x, $y, $radius - 1, $radius - 1, $color_rbg, ($params['start_angle'] + 0.8 / ($params['level'] + 1)) * M_PI / 180, ($params['start_angle'] + $angle - 0.8 / ($params['level'] + 1)) * M_PI / 180);
//text associated with pie arc (only for angle > 2°)
$am = $params['start_angle'] + $angle / 2;
//mediant angle
$amr = $am * M_PI / 180;
//mediant angle in radiant
//adjust label position (in fonction of angle position)
$dx = $dy = 0;
if ($amr >= 7 * M_PI / 4 || $amr <= M_PI / 4) {
$dx = 0;
}
if ($amr >= M_PI / 4 && $amr <= 3 * M_PI / 4) {
$dx = ($amr - M_PI / 4) * 2 / M_PI;
}
if ($amr >= 3 * M_PI / 4 && $amr <= 5 * M_PI / 4) {
$dx = 1;
}
if ($amr >= 5 * M_PI / 4 && $amr <= 7 * M_PI / 4) {
$dx = 1 - ($amr - M_PI * 5 / 4) * 2 / M_PI;
}
if ($amr >= 7 * M_PI / 4) {
$dy = ($amr - M_PI - 3 * M_PI / 4) * 2 / M_PI;
}
if ($amr <= M_PI / 4) {
$dy = 1 - $amr * 2 / M_PI;
}
if ($amr >= M_PI / 4 && $amr <= 3 * M_PI / 4) {
$dy = 1;
}
if ($amr >= 3 * M_PI / 4 && $amr <= 5 * M_PI / 4) {
$dy = 1 - ($amr - 3 * M_PI / 4) * 2 / M_PI;
}
if ($amr >= 5 * M_PI / 4 && $amr <= 7 * M_PI / 4) {
$dy = 0;
}
//get label size
$box = @imageTTFBbox($this->fontsize, $this->fontangle, $this->font, $key);
$tw = abs($box[4] - $box[0]);
$th = abs($box[5] - $box[1]);
//define label position
if (is_array($data)) {
//show label inside its arc
$xtext = $x - $dx * $tw + cos($amr) * (0.5 * $radius - $step / 3);
$ytext = $y + $dy * $th - sin($amr) * (0.5 * $radius - $step / 4);
} else {
//show label outside of its arc
$xtext = $x + 3 - $dx * $tw + cos($amr) * (0.5 * $radius + $step / 16);
$ytext = $y + $dy * $th - sin($amr) * (0.5 * $radius + $step / 8);
}
//draw label
imagettftext($image, $this->fontsize, $this->fontangle, $xtext, $ytext, $darkercolor, $this->font, $key);
//values labels
if ($angle > 5) {
//mediant start angle in radiant (adjusted for left align label to its arc)
$samr = ($params['start_angle'] + 10 / ($params['level'] + 1)) * M_PI / 180;
//get label size
$box = @imageTTFBbox($this->fontsize, $this->fontangle, $this->font, is_array($data) ? $gsum : $data);
$tw = abs($box[4] - $box[0]);
$th = abs($box[5] - $box[1]);
//define label position
$xtext = $x - $dx * $tw + cos($samr) * (0.5 * $radius - $step / 8);
$ytext = $y + $dy * $th - sin($samr) * (0.5 * $radius - $step / 16);
//draw label
imagettftext($image, $this->fontsize, $this->fontangle, $xtext, $ytext, $this->black, $this->font, is_array($data) ? $sum : $data);
}
$params['start_angle'] += $angle;
$index++;
}
return $image;
}
