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/* stl2web.js - image sequence viewer.
* Part of STL2Web. A 3D object viewer and composing system.
* by Erik de Bruijn
* Licence: GPLv3. See: http://www.gnu.org/copyleft/gpl.html
*
* Changes:
* v0.1 2009-03-29 First version (Can walk through a one-dimensional numbered sequence (pre-built animation).
* TODOs:
* - distributed rendering system (sort this out server side, use lowest latency server, write to cookie)
* - controls
* - playback & record movement paths (fly over object, highlight a detail, etc.)
* - set object color (and perhaps even the material PLA,ABS, etc.)
* - scene customization:
* bg color, shadow on/off, grid on/off, put the rendering on top of a tabletop, put pencil besides it, etc.
* - STL upload and fetching feature (e.g. fetch from thingiverse)
* - Download/export as movie/.mjpeg/ani-gif?, etc.
* - Allow various image sizes
*/
var r;
$(document).ready(function(){
ri = 'Wineglass';
r= new Renderer(ri,'/stl2web/img/');
//r.debug = true;
r.setFrameRate(2);
r.animate(0,30);
i = $(".s2wi");
});
function Renderer(ri,ipfx)
{
// renderer values
var frame = 0;
var frameInterval = 10; //binding
var frameRate = 5; //non binding
var startFrame = 0;
var stopFrame = 4;
var interval; // used to keep track of the setInterval() thread
var debug = false;
var imgPrefix = '/stl2web/img/';
// define function
this.toggleDebug = toggleDebug;
this.setFrameRate = rSetFrameRate;
this.animate = rAnimate;
this.pause = rPause;
this.resume = rResume;
this.showFrame = rShowFrame;
this.nextFrame = rNextFrame;
this.log = log;
this.reset = rReset;
if(ipfx) this.imgPrefix = ipfx;
this.log(ipfx);
this.reset();
}
function log(str)
{
if(this.debug) console.log(str);
}
function rSetFrameRate(frameRate)
{
this.frameRate = frameRate;
this.frameInterval = 1000/frameRate;
}
/* Reset or initialize the rendering */
function rReset()
{
$("div.stl2web").text(' '); // empty it all
// populate it
//$("div.stl2web").append("<img class='s2wi' src='"+this.imgPrefix+ri+"0.png'/>");
$("div.stl2web").append("<img class='s2wi'/>");
$("div.stl2web").append("<div class='s2wLabel'>"+ri+" (Loading...)</div>")
.append("<a href='javascript:r.pause()'>pause</a> ")
.append("<a href='javascript:r.resume()'>resume</a> ")
.append("<a href='javascript:r.reset()'>reset</a> ")
.append("<a href='javascript:r.toggleDebug();'>debug</a> ")
.append("FPS: <input type='textfield' value='"+this.frameRate+"' onblur='r.setFrameRate(this.value);r.pause();r.resume()'>")
;
this.frame=this.startFrame;
this.showFrame(this.frame);
//this.pause();
//this.resume();
}
function rPause(doPause)
{
if(doPause==false)
this.rResume();
clearInterval(this.interval);
}
function rResume()
{
this.interval = window.setInterval('r.nextFrame()',this.frameInterval);
}
function rAnimate(startFrame,stopFrame)
{
//if(startFrame>0)
this.startFrame=startFrame;
//if(stopFrame>0)
this.stopFrame=stopFrame;
this.resume();
//while(this.frame<=stopFrame)
//{
// this.showFrame(this.frame);
// this.frame++;
//}
}
function rShowFrame(frameNr)
{
if(frameNr<10) frameNr="0"+frameNr;
this.log("frame "+this.imgPrefix+ri+frameNr);
$(".s2wi").attr('src',this.imgPrefix+ri+frameNr+".png");
$("div.s2wLabel").text(ri+" ("+frameNr+"/"+this.stopFrame+")"); //div.s2wLabel").val('Frame '+frameNr);
}
function rNextFrame()
{
if(!this.frame) this.frame = 0;
if(this.frame >= this.stopFrame)
{
if(this.repeat--)
clearInterval(this.interval);
else this.frame = this.startFrame; // repeat
}
this.frame++;
this.showFrame(this.frame);
}
function toggleDebug(val)
{
if(val==true) this.debug = true;
if(val==false) this.debug = false;
if(!val) this.debug = (!this.debug);
}
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