function __construct($aData)
{
$this->iData = $aData;
$this->legend = new LegendStyle();
// Setup the scale
$this->scale = new WindrosePlotScale($this->iData);
// default label for free type i agle and a degree sign
$this->iLabelFormatString = '%.1f' . SymChar::Get('degree');
$delta = 2 * M_PI / 16;
for ($i = 0, $a = 0; $i < 16; ++$i, $a += $delta) {
$this->iStandardDirections[$this->iAllDirectionLabels[$i]] = $a;
}
}
// Create some random data for the plot. We use the current time for the
// first X-position
//
$f = new FuncGenerator('cos($x)+1.5*cos(2*$x)');
list($datax, $datay) = $f->E(0, 10);
// Now get labels at 1/2 PI intervall
$tickPositions = array();
$tickLabels = array();
$tickPositions[0] = 0;
$tickLabels[0] = '0';
for ($i = 1; $i / 2 * M_PI < 11; ++$i) {
$tickPositions[$i] = $i / 2 * M_PI;
if ($i % 2) {
$tickLabels[$i] = $i . '/2' . SymChar::Get('pi');
} else {
$tickLabels[$i] = $i / 2 . SymChar::Get('pi');
}
}
$n = count($datax);
$xmin = $datax[0];
$xmax = $datax[$n - 1];
//
// The code to setup a very basic graph
//
$graph = new Graph(400, 200);
//
// We use an integer scale on the X-axis since the positions on the X axis
// are assumed to be UNI timestamps
$graph->SetScale('linlin', 0, 0, $xmin, $xmax);
$graph->title->Set('Example with manual tick labels');
$graph->title->SetFont(FF_ARIAL, FS_NORMAL, 12);
function StrokeAngleLabels($pos, $type)
{
if (!$this->show_angle_label) {
return;
}
$x0 = round($this->img->left_margin + $this->img->plotwidth / 2) + 1;
$d = max($this->img->plotwidth, $this->img->plotheight) * 1.42;
$a = $this->angle_step;
$t = new Text();
$t->SetColor($this->angle_fontcolor);
$t->SetFont($this->angle_fontfam, $this->angle_fontstyle, $this->angle_fontsize);
$xright = $this->img->width - $this->img->right_margin;
$ytop = $this->img->top_margin;
$xleft = $this->img->left_margin;
$ybottom = $this->img->height - $this->img->bottom_margin;
$ha = 'left';
$va = 'center';
$w = $this->img->plotwidth / 2;
$h = $this->img->plotheight / 2;
$xt = $x0;
$yt = $pos;
$margin = 5;
$tl = $this->angle_tick_len;
// Outer len
$tl2 = $this->angle_tick_len2;
// Interior len
$this->img->SetColor($this->angle_tick_color);
$rot90 = $this->img->a == 90;
if ($type == POLAR_360) {
// Corner angles of the four corners
$ca1 = atan($h / $w) / M_PI * 180;
$ca2 = 180 - $ca1;
$ca3 = $ca1 + 180;
$ca4 = 360 - $ca1;
$end = 360;
while ($a < $end) {
$ca = cos($a / 180 * M_PI);
$sa = sin($a / 180 * M_PI);
$x = $d * $ca;
$y = $d * $sa;
$xt = 1000;
$yt = 1000;
if ($a <= $ca1 || $a >= $ca4) {
$yt = $pos - $w * $y / $x;
$xt = $xright + $margin;
if ($rot90) {
$ha = 'center';
$va = 'top';
} else {
$ha = 'left';
$va = 'center';
}
$x1 = $xright - $tl2;
$x2 = $xright + $tl;
$y1 = $y2 = $yt;
} elseif ($a > $ca1 && $a < $ca2) {
$xt = $x0 + $h * $x / $y;
$yt = $ytop - $margin;
if ($rot90) {
$ha = 'left';
$va = 'center';
} else {
$ha = 'center';
$va = 'bottom';
}
$y1 = $ytop + $tl2;
$y2 = $ytop - $tl;
$x1 = $x2 = $xt;
} elseif ($a >= $ca2 && $a <= $ca3) {
$yt = $pos + $w * $y / $x;
$xt = $xleft - $margin;
if ($rot90) {
$ha = 'center';
$va = 'bottom';
} else {
$ha = 'right';
$va = 'center';
}
$x1 = $xleft + $tl2;
$x2 = $xleft - $tl;
$y1 = $y2 = $yt;
} else {
$xt = $x0 - $h * $x / $y;
$yt = $ybottom + $margin;
if ($rot90) {
$ha = 'right';
$va = 'center';
} else {
$ha = 'center';
$va = 'top';
}
$y1 = $ybottom - $tl2;
$y2 = $ybottom + $tl;
$x1 = $x2 = $xt;
}
if ($a != 0 && $a != 180) {
$t->Align($ha, $va);
if ($this->scale->clockwise) {
$t->Set(360 - $a);
} else {
$t->Set($a);
}
if ($this->show_angle_mark && $t->font_family > 4) {
$a .= SymChar::Get('degree');
}
$t->Stroke($this->img, $xt, $yt);
if ($this->show_angle_tick) {
$this->img->Line($x1, $y1, $x2, $y2);
}
}
$a += $this->angle_step;
}
} else {
// POLAR_HALF
$ca1 = atan($h / $w * 2) / M_PI * 180;
$ca2 = 180 - $ca1;
$end = 180;
while ($a < $end) {
$ca = cos($a / 180 * M_PI);
$sa = sin($a / 180 * M_PI);
$x = $d * $ca;
$y = $d * $sa;
if ($a <= $ca1) {
$yt = $pos - $w * $y / $x;
$xt = $xright + $margin;
if ($rot90) {
$ha = 'center';
$va = 'top';
} else {
$ha = 'left';
$va = 'center';
}
$x1 = $xright - $tl2;
$x2 = $xright + $tl;
$y1 = $y2 = $yt;
} elseif ($a > $ca1 && $a < $ca2) {
$xt = $x0 + 2 * $h * $x / $y;
$yt = $ytop - $margin;
if ($rot90) {
$ha = 'left';
$va = 'center';
} else {
$ha = 'center';
$va = 'bottom';
}
$y1 = $ytop + $tl2;
$y2 = $ytop - $tl;
$x1 = $x2 = $xt;
} elseif ($a >= $ca2) {
$yt = $pos + $w * $y / $x;
$xt = $xleft - $margin;
if ($rot90) {
$ha = 'center';
$va = 'bottom';
} else {
$ha = 'right';
$va = 'center';
}
$x1 = $xleft + $tl2;
$x2 = $xleft - $tl;
$y1 = $y2 = $yt;
}
$t->Align($ha, $va);
if ($this->show_angle_mark && $t->font_family > 4) {
$a .= SymChar::Get('degree');
}
$t->Set($a);
$t->Stroke($this->img, $xt, $yt);
if ($this->show_angle_tick) {
$this->img->Line($x1, $y1, $x2, $y2);
}
$a += $this->angle_step;
}
}
}
// Create a new odometer graph (width=250, height=200 pixels)
$graph = new OdoGraph(250, 170);
// Setup graph titles
$graph->title->Set('Custom formatting');
$graph->title->SetColor('white');
$graph->title->SetFont(FF_ARIAL, FS_BOLD);
// Add drop shadow for graph
$graph->SetShadow();
// Now we need to create an odometer to add to the graph.
$odo = new Odometer();
$odo->SetColor("lightgray:1.9");
// Setup the scale
$odo->scale->Set(100, 600);
$odo->scale->SetTicks(50, 2);
$odo->scale->SetTickColor('brown');
$odo->scale->SetTickLength(0.05);
$odo->scale->SetTickWeight(2);
$odo->scale->SetLabelPos(0.75);
$odo->scale->label->SetFont(FF_FONT1, FS_BOLD);
$odo->scale->label->SetColor('brown');
$odo->scale->label->SetFont(FF_ARIAL, FS_NORMAL, 10);
// Setup a label with a degree mark
$odo->scale->SetLabelFormat('%dC' . SymChar::Get('degree'));
// Set display value for the odometer
$odo->needle->Set(280);
// Add drop shadow for needle
$odo->needle->SetShadow();
// Add the odometer to the graph
$graph->Add($odo);
// ... and finally stroke and stream the image back to the browser
$graph->Stroke();
function GetView()
{
global $TMP_PATH;
$req = $this->req->CreateDataRequest();
$x = $req->GetProp("view_x", false);
if (!$x) {
throw new ADEIException(translate("Parameter view_x is not set"));
}
list($x_gid, $x_id) = explode(":", $x);
if ($this->object) {
$width = $req->GetProp($this->object . "_width", $this->min_width + 20) - 20;
if ($width < $this->min_width) {
$width = $this->min_width;
}
$height = $width - 40;
//$req->GetProp($this->object . "_height", $this->min_height);
} 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' => $this->max_points, 'resolution' => $res);
$gid = 0;
$res = array();
foreach ($caches as $key => $cachewrap) {
if ($gid != $x_gid) {
$gid++;
continue;
}
$resolution = $cachewrap->GetResolution();
$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 = $points->GetOperationInfo();
if ($gid == $x_gid) {
$res_x = $size;
}
foreach ($points as $t => $v) {
/* if (($t < $window_start)||(($t + $size) > $window_end)) {
continue;
}*/
if ($gid == $x_gid && is_numeric($v['mean' . $x_id])) {
if (!is_array($res[$t])) {
$res[$t] = array();
}
$res[$t]['x'] = $v['mean' . $x_id];
$res[$t]['t'] = $t;
}
}
$gid++;
}
$x = array();
$t = array();
foreach ($res as $val) {
if (isset($val['x'])) {
array_push($x, $val['x']);
}
}
if (!$x) {
throw new ADEIException(translate("No data found"));
}
$bins = $req->GetProp("view_bins", 0);
if (!$bins) {
$bins = ceil(sqrt(sizeof($x)));
}
$norm = $req->GetProp("view_hist_norm", 0);
$fit = $req->GetProp("view_hist_fit", 0);
$min = min($x);
$max = max($x);
$step = ($max - $min) / $bins;
$coef = $norm ? 1 / ($step * sizeof($x)) : 1;
$h = array_fill(0, $bins, 0);
foreach ($x as $val) {
$idx = ($val - $min) / $step;
if ($idx == $bins) {
$idx--;
}
$h[$idx] += $coef;
}
for ($i = 0; $i < $bins; $i++) {
array_push($t, sprintf("%3.1e", $min + $i * $step));
}
$tmp_file = ADEI::GetTmpFile();
$graph = new Graph($width, $height);
/* $title = "Resolution: $res_x";
$graph->title->SetFont(FF_ARIAL,FS_BOLD,10);
$graph->title->Set($title);*/
$graph->SetTickDensity(TICKD_SPARSE, TICKD_SPARSE);
$graph->img->SetMargin(55, 5, 10, 20);
$graph->SetScale("textlin");
$graph->xaxis->SetPos("min");
$graph->yaxis->SetPos("min");
// $graph->xaxis->SetLabelFormat('%3.1e');
// if (abs(max($h))<9999 && (abs(min($h))>0.01)) $graph->yaxis->SetLabelFormat('%01.2f');
// else $graph->yaxis->SetLabelFormat('%3.1e');
$graph->xaxis->SetFont(FF_ARIAL, FS_NORMAL, 8);
$graph->yaxis->SetFont(FF_ARIAL, FS_NORMAL, 8);
// $graph->yaxis->HideFirstTickLabel();
$graph->xaxis->title->SetFont(FF_ARIAL, FS_BOLD);
$graph->yaxis->title->SetFont(FF_ARIAL, FS_BOLD);
//$graph->xaxis->title->Set($arr[0]['select']['options'][$x_idg]['label']);
if ($bins > 8) {
$graph->xaxis->SetTextLabelInterval(ceil($bins / 6));
}
$graph->xaxis->SetTickLabels($t);
$bplot = new BarPlot($h);
$bplot->SetWidth(1);
$graph->Add($bplot);
$graph->yaxis->scale->SetGrace(14);
$mean = array_sum($x) / sizeof($x);
$stddev = stats_standard_deviation($x);
$var = stats_variance($x);
$sigma = sqrt($var);
$re = 100 * $sigma / $mean;
sort($x);
if (sizeof($x) % 2) {
$median = $x[(sizeof($x) - 1) / 2];
} else {
$median = ($x[sizeof($x) / 2 - 1] + $x[sizeof($x) / 2]) / 2;
}
// Gaussian fitting
if ($fit) {
$ydata = array();
$xdata = array();
if ($norm) {
$coef = 1 / sqrt(2 * pi() * $var);
} else {
$coef = sizeof($x) * $step / sqrt(2 * pi() * $var);
}
$xi2 = 0;
for ($i = 0; $i <= $bins; $i++) {
$offset = $i * $step;
$y = $coef * exp(-pow($min + $offset - $mean, 2) / (2 * $var));
array_push($xdata, $i);
array_push($ydata, $y);
$xi2 += pow($y - $h[$i], 2) / $y;
}
$xi2 /= $bins;
$lineplot = new LinePlot($ydata, $xdata);
$graph->Add($lineplot);
}
$char_sigma = SymChar::Get('sigma', false);
/*
$txt = new Text();
$txt->SetFont(FF_ARIAL,FS_BOLD,10);
if( $req->GetProp("view_GFit", false) == "true")
$txt->Set("m=$mean\n$char_sigma=$sigma\nRE=$RE%\nx^2=$xi2");//\ns=$stdDev
else
$txt->Set("m=$mean\n$char_sigma=$sigma\nRE=$RE%");//\ns=$stdDev
$txt->ParagraphAlign('right');
$txt->SetPos(0.96,0.1,'right');
//$txt->SetBox('white');
$graph->Add($txt);
*/
$graph->Stroke("{$TMP_PATH}/{$tmp_file}");
if ($this->object) {
$res = array(array("img" => array("id" => $tmp_file)), array("info" => array(array("title" => _("From"), "value" => date('c', $iv->GetWindowStart())), array("title" => _("To"), "value" => date('c', $iv->GetWindowEnd())), array("title" => _("Resolution"), "value" => $res_x), array("title" => _("Bins"), "value" => $bins), array("title" => _("First Bin"), "value" => $min), array("title" => _("Last Bin"), "value" => $min + $bins * $step), array("title" => _("Mean"), "value" => $mean), array("title" => _("Median"), "value" => $median), array("title" => _("StdDev"), "value" => $stddev), array("title" => _("Sigma"), "value" => $sigma), array("title" => _("RE"), "value" => $re . "%"))));
if ($fit) {
array_push($res[1]["info"], array("title" => _("xi2"), "value" => $xi2));
}
return $res;
} else {
return array("img" => array("id" => $tmp_file));
}
}
/**
* Internal ramewrok method to setup the legend to be used for this plot.
* @param $aGraph The parent graph class
*/
function Legend($aGraph)
{
if (!$this->showLegend) {
return;
}
if ($aGraph->legend->font_family <= FF_FONT2 + 1) {
$lte = "<=";
} else {
$lte = SymChar::Get('lte');
}
if ($this->invertLegend) {
for ($i = 0; $i < $this->nbrContours; $i++) {
$aGraph->legend->Add(sprintf($lte . ' %.1f', $this->contourVal[$i]), $this->contourColor[$i]);
}
} else {
for ($i = $this->nbrContours - 1; $i >= 0; $i--) {
$aGraph->legend->Add(sprintf($lte . ' %.1f', $this->contourVal[$i]), $this->contourColor[$i]);
}
}
}