require_once '../jpgraph/jpgraph.php';
require_once '../jpgraph/jpgraph_line.php';
require_once "login.php";
require_once "config.php";
require_once "curl.php";
require_once "function.php";
if (isset($_GET["itemid"])) {
$itemid = $_GET["itemid"];
$key = $_GET["key"];
$table = $_GET['table'];
$fun = new fun();
$result = $fun->getHistoryBySql($itemid, 100, $table);
for ($i = 0; $i < count($result['clock']); $i++) {
$result['clock'][$i] = date("H:i:s", $result['clock'][$i]);
}
showimg($result['value'], $result['clock'], $key);
} else {
echo "<script>window.location.href='zabbix.php'</script>";
exit;
}
function showimg($value, $clock, $key)
{
$datay1 = $value;
$graph = new Graph(1000, 400);
$graph->SetScale("textlin");
//设置图片外边距（左,右,上,下）
$graph->img->SetMargin(100, 20, 20, 60);
$graph->title->Set($key);
$graph->yaxis->HideZeroLabel();
$graph->yaxis->HideLine(false);
$graph->yaxis->HideTicks(false, false);
function resizeImage($src_imagename, $maxwidth, $maxheight, $savename, $file_type)
{
$im = createimg($src_imagename, $file_type);
if ($im) {
$current_width = imagesx($im);
$current_height = imagesy($im);
$resizewidth_tag = false;
$resizeheight_tag = false;
$widthratio = 1;
$heightratio = 1;
$ratio = 1;
if ($maxwidth && $current_width > $maxwidth || $maxheight && $current_height > $maxheight) {
if ($maxwidth && $current_width > $maxwidth) {
$widthratio = $maxwidth / $current_width;
$resizewidth_tag = true;
}
if ($maxheight && $current_height > $maxheight) {
$heightratio = $maxheight / $current_height;
$resizeheight_tag = true;
}
if ($resizewidth_tag && $resizeheight_tag) {
if ($widthratio < $heightratio) {
$ratio = $widthratio;
} else {
$ratio = $heightratio;
}
}
if ($resizewidth_tag && !$resizeheight_tag) {
$ratio = $widthratio;
}
if ($resizeheight_tag && !$resizewidth_tag) {
$ratio = $heightratio;
}
$newwidth = $current_width * $ratio;
$newheight = $current_height * $ratio;
if (function_exists("imagecopyresampled")) {
$newim = imagecreatetruecolor($newwidth, $newheight);
imagecopyresampled($newim, $im, 0, 0, 0, 0, $newwidth, $newheight, $current_width, $current_height);
} else {
$newim = imagecreate($newwidth, $newheight);
imagecopyresized($newim, $im, 0, 0, 0, 0, $newwidth, $newheight, $current_width, $current_height);
}
showimg($newim, $savename, $file_type);
imagedestroy($newim);
} else {
imagejpeg($im, $savename);
}
}
}
