<?php
include 'src/scheme.php';
$format = 'jpg';
$dotFile = 'files' . DIRECTORY_SEPARATOR . 'dot';
$outputFile = 'images' . DIRECTORY_SEPARATOR . 'output.png';
$scheme = new Scheme();
//if you use windows
//$scheme = new Schceme('C:\Program Files (x86)\Graphviz2.38\bin\dot.exe');
$scheme->addNode("start", array("shape" => "Mdiamond", "color" => "salmon2", "style" => "filled"));
$scheme->addNode("finish", array("sides" => "3", "distortion" => "0", "shape" => "polygon", "style" => "filled", "color" => "greenyellow"));
$scheme->addLink('start', 'finish');
$scheme->addLink('start', 'pause');
$scheme->addLink('pause', 'finish');
$scheme->writeDotFile($dotFile);
// you can save graph if you want
//$scheme->saveGraph($dotFile, $outputFile);
//echo '<img src="'.$outputFile.'">';
// or just show it
header("Content-Type: image/" . $format);
echo $scheme->generateGraph($dotFile, $format);