<?
require('../chart/chart.php');

$table = "spectra";
$link = mysql_connect("localhost", "lab.info", "incognito")
	or die("Could not connect: " . mysql_error());
mysql_select_db('gislab', $link) 
	or die ('Can\'t use gislab-todo : ' . mysql_error());

$chart = new chart(300, 300);
$chart->set_extrema(0, 1, 400, 1000); 
$colors = array("black","blue","red","green","khaki","gold","chocolate","brown","salmon","orange","pink","magenta","yellow");

$inc = 0;
if (isset($_GET['check']))
{
    foreach($_GET['check'] as $id)
    {
		$inc = $inc + 1;
     	$query = "SELECT * FROM $table WHERE $table.`id` = $id LIMIT 1;";
		$result = mysql_query($query) or die("Invalid query: " . mysql_error());
		$x = explode(";", mysql_result($result,0,"x"));
		$y = explode(";",mysql_result($result,0,"y"));

		$j = 0;
		unset($data2);
		unset($data1);
		WHILE ($j < count($x))
		{
			$data2[$j] = $x[$j];
			$data1[$j] = $y[$j];
			$j = $j + 1;
		}
		
		$chart->plot($data1, $data2, $colors[$inc]);
		$chart->add_legend($id, $colors[$inc]);
    }
}

$chart->stroke();
?>