From b50e6e891ced5f72139f7c12c11eedc9d1fad9e4 Mon Sep 17 00:00:00 2001
From: Tj Holowaychuk <tj@vision-media.ca>
Date: Wed, 3 Nov 2010 14:29:50 -0700
Subject: [PATCH] spark example using streaming api

---
 examples/spark.js | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/examples/spark.js b/examples/spark.js
index 77ebd74..1f2dd11 100644
--- a/examples/spark.js
+++ b/examples/spark.js
@@ -5,7 +5,8 @@
 
 var Canvas = require('../lib/canvas')
   , canvas = new Canvas(40, 15)
-  , ctx = canvas.getContext('2d');
+  , ctx = canvas.getContext('2d')
+  , fs = require('fs');
 
 Object.defineProperty(Array.prototype, 'max', {
   get: function(){
@@ -39,4 +40,9 @@ function spark(ctx, data) {
 
 spark(ctx, [1,2,4,5,10,4,2,5,4,3,3,2]);
 
-canvas.savePNG(__dirname + "/spark.png");
\ No newline at end of file
+var out = fs.createWriteStream(__dirname + '/spark.png')
+  , stream = canvas.createPNGStream();
+
+stream.on('data', function(chunk){
+  out.write(chunk);
+});
\ No newline at end of file