source: trunk/xgraph/jpgraph/Examples/odotutex02.php

<?php
require_once ('jpgraph/jpgraph.php');
require_once ('jpgraph/jpgraph_odo.php');

// Create a new odometer graph (width=250, height=200 pixels)
$graph = new OdoGraph(250,180);

// Setup titles
$graph->title->Set("Result for 2002");
$graph->title->SetColor("white");
$graph->title->SetFont(FF_ARIAL,FS_BOLD,14);
$graph->subtitle->Set("New York Office");
$graph->subtitle->SetColor("white");
$graph->caption->Set("Figure 1. Branch results.");
$graph->caption->SetColor("white");

// Now we need to create an odometer to add to the graph.
// By default the scale will be 0 to 100
$odo = new Odometer();

// Set display value for the odometer
$odo->needle->Set(30);

// Add the odometer to the graph
$graph->Add($odo);

// ... and finally stroke and stream the image back to the client
$graph->Stroke();

?>