Mercurial > MadButterfly
view nodejs/examples/simple/testcanvas.js @ 1412:3e80b5cf8da2
Testcase for redrawing image.
There is a report from wycc that redrawing is not working for image
(maybe other shapes). This testcase shows that he may forget to call
redraw_changed() after updating transform matrix.
author | Thinker K.F. Li <thinker@codemud.net> |
---|---|
date | Wed, 06 Apr 2011 10:44:15 +0800 |
parents | a74b4d986a91 |
children |
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// -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*- // vim: sw=4:ts=8:sts=4 var mbapp = require("mbapp"); var sys=require("sys"); var canvas=require("canvas"); app = new mbapp.app(); app.canvas = new canvas.canvas(app,app.mb_rt.root); app.canvas.background(0,0,0,1); app.canvas.rect(0,0,400,400); app.canvas.strokeWeight(8); width=200; height=200; setInterval(function() { app.canvas.clear(); for(i=0;i<width;i++) { x = Math.random()*255; y = Math.random()*200; cr = Math.random() cg = Math.random() cb = Math.random() app.canvas.stroke(cr,cg,cb,1); app.canvas.line(i,0,x,height); } app.update(); },33); app.loop();