<?php // content="text/plain; charset=utf-8"
require_once 'jpgraph/jpgraph.php';
require_once 'jpgraph/jpgraph_line.php';

// Some data
$datax  = array("2001-04-01", "2001-04-02", "2001-04-03", "2001-04-04", "2001-04-05", "2001-04-06");
$datay  = array(28, 13, 24, "", 90, 11);
$data2y = array(11, 41, "-", 33, "-", 63);

// Setup graph
$graph = new Graph\Graph(400, 250);
$graph->img->SetMargin(40, 150, 40, 80);
$graph->SetScale("textlin");
$graph->SetShadow();

//Setup title
$graph->title->Set("Line plot with null values");

// Use built in font
$graph->title->SetFont(FF_ARIAL, FS_NORMAL, 14);

// Slightly adjust the legend from it's default position
$graph->legend->Pos(0.03, 0.5, "right", "center");
$graph->legend->SetFont(FF_FONT1, FS_BOLD);

// Setup X-scale
$graph->xaxis->SetTickLabels($datax);
$graph->xaxis->SetFont(FF_ARIAL, FS_NORMAL, 8);
$graph->xaxis->SetLabelAngle(45);

// Create the first line
$p1 = new Plot\LinePlot($datay);
$p1->mark->SetType(MARK_FILLEDCIRCLE);
$p1->mark->SetFillColor("red");
$p1->mark->SetWidth(4);
$p1->SetColor("blue");
$p1->SetCenter();
$p1->SetLegend("Undefined\nvariant 1");
$graph->Add($p1);

// ... and the second
$p2 = new Plot\LinePlot($data2y);
$p2->mark->SetType(MARK_STAR);
$p2->mark->SetFillColor("red");
$p2->mark->SetWidth(4);
$p2->SetColor("red");
$p2->SetCenter();
$p2->SetLegend("Undefined\nvariant 2");
$graph->Add($p2);

// Output line
$graph->Stroke();
