Hi,

I'm not sure right now what would generate the exact error you refer to, but here's an example of an exportSpriteSheet() call that works for me:

spSheet.exportSpriteSheet("file:///C|/target/spritesheet" ,"PNG",true);

spSheet is a SpriteSheetExporter instance. This call will create the following file: C:\target\spritesheet.png

Pls let me know if you have any luck with this. Especially if you are able to generate a png image with a transparent background...

Cheers!

Bummer.

Here's a piece of code that works for me.

Run it on a flash document with a movieclip named "Anim" in the library. Also, you'll need to modify the dir variable as described in the inline comment below.

fl.getDocumentDOM().library.selectItem("Anim");

var item = fl.getDocumentDOM().library.getSelectedItems()[0];

fl.trace ("Item to export: " + item.name);

var dir = "file:///C|/target/"; //The directory where the image file should be created. This directory must exist - modify as needed.

if(FLfile.exists(dir)){

          var uri = dir + "anim";

          var sse = new SpriteSheetExporter();

          sse.layoutFormat = "easeljs";

          sse.addSymbol(item);

          var output_data =   sse.exportSpriteSheet(uri ,"PNG",true);

          fl.trace("output_data :"+output_data);

} else {

          fl.trace ("Error: Folder does not exist: " + dir);

}

If this doesn't work for you my guess is that your problem is mac specific (I'm on a PC).

I am also experiencing this error on a Mac. I was really looking forward to accessing this feature from JSFL.

I switched over to my Windows machine last night, and tested this, and I can confirm that it works under Windows, but not under OS X. The code I used is based on maki99's:

fl.getDocumentDOM().library.selectItem("BarnWithDoorsAnimated");

var item = fl.getDocumentDOM().library.getSelectedItems()[0];

fl.trace ("Item to export: " + item.name);

var dir = "file:///C|/Users/xxxx/Documents/sprite-sheet-test/";

//var dir = "file:////Users/xxxx/Documents/sprite-sheet-test/";

if(FLfile.exists(dir)){

          var uri = dir + "anim";

          var sse = new SpriteSheetExporter();

          sse.layoutFormat = "easeljs";

          sse.addSymbol(item);

          var output_data =   sse.exportSpriteSheet(uri ,"PNG",true);

          fl.trace("output_data :"+output_data);

} else {

          fl.trace ("Error: Folder does not exist: " + dir);

}

BTW - on the Mac, I tried "file:/Users/..." (which said file does not exist), as well as "file://Users/...", "file:///Users/...", and "file:////Users/...", all of which gave me the error with argument 1. It's kind of difficult to find documentation on how these URLs are supposed to be formatted...

Brian

Any news on the issue? Or being able to generate the sheet with transparency?

Try this ?

fl.getDocumentDOM().library.selectItem("symbolname");

var item = fl.getDocumentDOM().library.getSelectedItems()[0];

fl.trace ("Item to export: " + item.name);

//var dir = "file:///Users/xxx/Documents/sprite-sheet-test/"; //MAC

//var dir = "file:///C|/xxx/sprite-sheet-test/"; //WINDOWS

if(FLfile.exists(dir)){

          var uri = dir + "symbolname";

          var sse = new SpriteSheetExporter();

          sse.layoutFormat = "eseljs";

          sse.addSymbol(item);

          var output_data =   sse.exportSpriteSheet(uri ,{format:"png", bitDepth:32, backgroundColor:"#00000000"})

          fl.trace("output_data :"+output_data);

} else {

          fl.trace ("Error: Folder does not exist: " + dir);

}

Any news regarding the argument error when exporting on a Mac?  Any workarounds or any other info?

did you try avipro's script? (commenting out the dir at the  //MAC)

Same problem here. Mac OS X 10.8.2, Flash Pro CS6 12.0.2.529.

I've tried passing valid paths using valid URI, platform path, relative path, w or w/o file name and extension... all result in the same exception being thrown:

exportSpriteSheet: Argument number 1 is invalid.

var document = fl.getDocumentDOM();
var timeline = document.getTimeline();
var fileName = document.name.replace(/\.[^\.]+$/, '');
var fileDir = document.path.replace(/[\/\\][^\/\\]+$/, '');
 
var item = document.library.getSelectedItems()[0];
var spriteName = item.timeline.name;
var exportDir = FLfile.platformPathToURI(fileDir); //+'/../../app/data/scenes');
 
var format = {format:"png", bitDepth:32, backgroundColor:"#00000000"};
var writemeta = false;
 
var sse = new SpriteSheetExporter();
sse.addSymbol(item);
sse.layoutFormat = "easeljs";
 
var path = spriteName +'.png';
path = exportDir +'/'+ path;
//path = FLfile.uriToPlatformPath(path);
 
fl.trace('export '+ item +' using '+ sse +' to '+ path);
var result = sse.exportSpriteSheet(null, format, writemeta);
fl.trace('result: '+ result);

Please fix!