echo "<div id='chart_div4' style='width: 900px; height: 500px;'>Line-Chart</div>";
if (isset($_GET['cmd'])) {
$cmd = $_GET['cmd'];
if (true) {
echo "<p>cmd=" . $cmd . "</p>";
}
if ($cmd == "Anzeigen") {
if (isset($_GET['start']) && isset($_GET['end'])) {
$startValue = $_GET['start'];
$endValue = $_GET['end'];
//
$data = dataStartEnd($startValue, $endValue);
//draws google chart
$channel = 4;
$data = getData($channel, $startValue, $endValue);
plotGraph($data);
//draws phpplot2.png
echo "<img src='./phpplot2.png'>";
//echo "<img src='phpplot2.php?channel=4&start=".$startValue."&end=".$endValue."'>";
if ($data) {
//displayArray($data);
echo " <script type='text/javascript'>\r\n";
echo " document.getElementById('start').value=" . $_GET['start'] . ";\r\n";
echo " document.getElementById('end').value=" . $_GET['end'] . ";\r\n";
echo " </script>\r\n";
} else {
echo "<p>NO selection DATA</p>";
}
} else {
listDataOfChannel(4);
}
$result = pg_query($query) or die('Query failed: ' . pg_last_error());
$arr = pg_fetch_all($result);
$number = count($arr);
while ($row = pg_fetch_object($result)) {
$time[] = displayTime($row->time);
$abc[] = floatval($row->{$item});
}
pg_free_result($result);
pg_close($dbconn);
if ($number >= 20) {
# code...
$time = array_slice($time, sizeof($time) - 20);
$abc = array_slice($abc, sizeof($abc) - 20);
}
$file = "graphPool/smaple" . date('YmdGis') . ".jpg";
plotGraph($item, $time, $abc, $file);
?>
<!DOCTYPE html>
<html lang="en">
<head>
<title>Status Value Graph</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
</head>
<body>
<img src="<?php
