function TryPlot(DATARequest $req, &$draw, &$no_data)
{
try {
$draw = $req->CreatePlotter();
$draw->Create();
} catch (ADEIException $ae) {
$recovered = false;
switch ($ae->getCode()) {
case ADEIException::PLOTTER_WINDOW_TOO_SMALL:
if (!$req->GetProp('hide_axes')) {
$ae->logInfo(NULL, $draw ? $draw : $req);
$req->SetProp('hide_axes', 'Y');
TryPlot($req, $draw, $no_data);
return translate("To many Y-axes, hidden");
}
break;
case ADEIException::NO_DATA:
case ADEIException::NO_CACHE:
case ADEIException::INVALID_REQUEST:
if ($draw) {
try {
$error = $ae->getInfo();
$draw->CreateMessage("Error", $error);
$no_data = true;
return 0;
} catch (ADEIException $ex) {
$ex->logInfo(NULL, $draw);
throw $ae;
}
}
break;
}
throw $ae;
}
return 0;
}
function GetView()
{
global $ADEI_ID_DELIMITER;
global $TMP_PATH;
$req = $this->req->CreateDataRequest();
$mapping_group = $req->GetProp("view_mapping_group", false);
if (!$mapping_group) {
throw new ADEIException(translate("Parameter view_mapping_group is not set"));
}
if ($mapping_group != "all") {
list($server_db, $name_db, $group_db) = explode($ADEI_ID_DELIMITER, $mapping_group);
$props_to_replace = array("db_server" => $server_db, "db_name" => $name_db, "db_group" => $group_db, "db_mask" => "");
$req = new DATARequest(array_merge($req->props, $props_to_replace));
}
if ($this->object) {
$width = $req->GetProp($this->object . "_width", $this->min_width + 20) - 20;
if ($width < $this->min_width) {
$width = $this->min_width;
}
$height = $width - 40;
} else {
$width = $req->GetProp("page_width", $this->min_width + 5) - 5;
$height = $req->GetProp("page_height", $this->min_height);
if ($width < $this->min_width) {
$width = $this->min_width;
}
if ($height < $this->min_height) {
$height = $this->min_height;
}
}
$rdr = $req->CreateReader();
$group = $rdr->CreateGroup();
$caches = $rdr->CreateCacheSet($group, $mask);
$myreq = $this->req->CreateDataRequest();
$iv = $caches->CreateInterval($req, true);
$window_size = $iv->GetWindowSize();
$window_start = $iv->GetWindowStart();
$window_end = $iv->GetWindowEnd();
$rescfg = array('limit' => 1, 'resolution' => $res);
$norm_hist_max = $req->GetProp("view_hist_norm_max", false);
$norm_hist_srf = $req->GetProp("view_hist_norm_srf", false);
$scale_log = $req->GetProp("view_log_scale", false);
$mode_of_draw = $req->GetProp("view_draw_mode", false);
$bin_from = $req->GetProp("view_bin_from", false);
$bin_to = $req->GetProp("view_bin_to", false);
$max_of_y = $req->GetProp("view_y_max", false);
if (!$bin_from || $bin_from <= 0 || $bin_from == "false") {
$bin_from = 1;
}
if (!isset($max_of_y) || $max_of_y < 0) {
$max_of_y = 0;
}
$x_bin = array();
$x_bin_min = array();
$x_bin_max = array();
$x_bin_sum = array();
$x_axis_tick_labels = array();
foreach ($caches as $key => $cachewrap) {
$resolution = $cachewrap->GetResolution();
if (!$bin_to || $bin_to <= 0 || $bin_to == "false") {
$bin_to = $cachewrap->GetWidth();
}
$bins_n = $bin_to - $bin_from + 1;
$r = $resolution->Get($iv, $width);
$size = $resolution->GetWindowSize($r);
if ($size > 0 && $window_size / $size > $this->max_points) {
$new_r = $resolution->Larger($r);
if ($new_r !== false) {
$r = $new_r;
}
$size = $resolution->GetWindowSize($r);
}
$rescfg['resolution'] = $r;
$points = $cachewrap->GetIntervals($iv, $rescfg, CACHE::TRUNCATE_INTERVALS);
$operation_info = $points->GetOperationInfo();
$res_x = $size;
$sum_of_vars = 0;
$sum_of_vars_min = 0;
$sum_of_vars_max = 0;
$number_of_events = 0;
$number_of_events_min = 0;
$number_of_events_max = 0;
foreach ($points as $t => $v) {
for ($i = $bin_from - 1; $i < $bin_to; $i++) {
$bin_height = $v['mean' . $i];
if ($mode_of_draw == "hist_sum") {
$bin_height *= $v['items'];
}
$x_bin[$i - $bin_from + 1] += $bin_height;
$sum_of_vars += ($i + 1) * $bin_height;
$number_of_events += $bin_height;
if ($mode_of_draw == "hist_minmax") {
$x_bin_min[$i - $bin_from + 1] += $v['min' . $i];
$x_bin_max[$i - $bin_from + 1] += $v['max' . $i];
}
array_push($x_axis_tick_labels, sprintf("%d", $i + 1));
}
}
if (!$x_bin) {
throw new ADEIException(translate("No data found"));
}
$mean = $sum_of_vars / $number_of_events;
$var_std = 0;
$var_sum = 0;
$var_bin = 0;
$half_number_of_events = $number_of_events / 2;
for ($i = $bin_from; $i <= $bin_to; $i++) {
$var_std += ($i - $mean) * ($i - $mean) * $x_bin[$i - $bin_from];
if ($var_sum < $half_number_of_events) {
$var_sum += $x_bin[$i - $bin_from];
$var_bin = $i - $bin_from;
}
}
$stddev = sqrt($var_std / $number_of_events);
$median = $var_bin + ($half_number_of_events - $var_sum + $x_bin[$var_bin + 1]) / $x_bin[$var_bin + 1];
}
$tmp_file = ADEI::GetTmpFile();
$graph = new Graph($width, $height);
$graph->SetTickDensity(TICKD_SPARSE, TICKD_SPARSE);
$graph->img->SetMargin(55, 5, 10, 20);
if (!$scale_log) {
$graph->SetScale("textlin", 0, $max_of_y);
} else {
if (min($x_bin) >= 0) {
$graph->SetScale("textlog");
} else {
throw new ADEIException(translate("The selected data contains negative values which can't be visualized on the log scale"));
}
}
$graph->xaxis->SetPos("min");
$graph->yaxis->SetPos("min");
$graph->xaxis->SetFont(FF_ARIAL, FS_NORMAL, 8);
$graph->yaxis->SetFont(FF_ARIAL, FS_NORMAL, 8);
$graph->xaxis->title->SetFont(FF_ARIAL, FS_BOLD);
$graph->yaxis->title->SetFont(FF_ARIAL, FS_BOLD);
if ($bins_n > 16) {
$graph->xaxis->SetTextLabelInterval(ceil($bins_n / ceil($width / 25)));
}
$graph->xaxis->SetTickLabels($x_axis_tick_labels);
$bplot = new BarPlot($x_bin);
$bplot->SetWidth(1);
if ($mode_of_draw == "hist_sum") {
$bplot->SetLegend("Sum Mode");
} else {
$bplot->SetLegend("AVG Mode");
}
if ($mode_of_draw == "hist_minmax") {
$bplot_min = new BarPlot($x_bin_min);
$bplot_min->SetWidth(1);
$bplot_min->SetLegend("Minimum");
$bplot_min->SetFillColor('deepskyblue');
$bplot_max = new BarPlot($x_bin_max);
$bplot_max->SetWidth(1);
$bplot_max->SetLegend("Maximum");
$bplot_max->SetFillColor('indianred1');
}
if ($mode_of_draw == "hist_minmax") {
$graph->Add($bplot_max);
}
$graph->Add($bplot);
if ($mode_of_draw == "hist_minmax") {
$graph->Add($bplot_min);
}
$graph->yaxis->scale->SetGrace(14);
$graph->Stroke("{$TMP_PATH}/{$tmp_file}");
if ($this->object) {
$res = array(array("img" => array("id" => $tmp_file)), array("info" => array(array("title" => _("Number of Bins"), "value" => round($bins_n, 3)), array("title" => _("Mode"), "value" => array_search(max($x_bin), $x_bin) + $bin_from), array("title" => _("Mean"), "value" => round($mean, 3)), array("title" => _("Median"), "value" => round($median, 3)), array("title" => _("Value of Mode"), "value" => round(max($x_bin), 3)), array("title" => _("Integral of Hist"), "value" => round($number_of_events, 3)), array("title" => _("StdDev"), "value" => round($stddev, 3)), array("title" => _("RE"), "value" => round($stddev / $mean * 100 . "%", 3) . "%"), array("title" => _("From"), "value" => date('c', $iv->GetWindowStart())), array("title" => _("To"), "value" => date('c', $iv->GetWindowEnd())), array("title" => _("Resolution"), "value" => round($res_x, 3)))));
return $res;
} else {
return array("img" => array("id" => $tmp_file));
}
}
