<?php
// content="text/plain; charset=utf-8"
// Basic contour plot example
require_once "jpgraph/jpgraph.php";
require_once "jpgraph/jpgraph_contour.php";
$data = array(array(0.5, 1.1, 1.5, 1, 2.0, 3, 3, 2, 1, 0.1), array(1.0, 1.5, 3.0, 5, 6.0, 2, 1, 1.2, 1, 4), array(0.9, 2.0, 2.1, 3, 6.0, 7, 3, 2, 1, 1.4), array(1.0, 1.5, 3.0, 4, 6.0, 5, 2, 1.5, 1, 2), array(0.8, 2.0, 3.0, 3, 4.0, 4, 3, 2.4, 2, 3), array(0.6, 1.1, 1.5, 1, 4.0, 3.5, 3, 2, 3, 4), array(1.0, 1.5, 3.0, 5, 6.0, 2, 1, 1.2, 2.7, 4), array(0.8, 2.0, 3.0, 3, 5.5, 6, 3, 2, 1, 1.4), array(1.0, 1.5, 3.0, 4, 6.0, 5, 2, 1, 0.5, 0.2));
// Basic contour graph
$graph = new Graph(350, 250);
$graph->SetScale('intint');
// Show axis on all sides
$graph->SetAxisStyle(AXSTYLE_BOXOUT);
// Adjust the margins to fit the margin
$graph->SetMargin(30, 100, 40, 30);
// Setup
$graph->title->Set('Basic contour plot with multiple axis');
$graph->title->SetFont(FF_ARIAL, FS_BOLD, 12);
// A simple contour plot with default arguments (e.g. 10 isobar lines)
$cp = new ContourPlot($data);
// Flip the data around its center line
$cp->SetInvert();
// Display the legend
$cp->ShowLegend();
$graph->Add($cp);
// ... and send the graph back to the browser
$graph->Stroke();
