Have you ever tried to take a snapshot using bitmap.draw() of a movieclip that has 9-slice enabled?

//my9SliceEnabledMc is a 40 by 40 9-slice enabled movieclip on stage
my9SliceEnabledMc.width = 200;
my9SliceEnabledMc.height = 300;
var myBitmapData = new BitmapData(200,300);
myBitmapData.draw(my9SliceEnabledMc);
addChild(new Bitmap(myBitmapData));


So what you'd expect to happen above is to have a new bitmap that looks the same as my9SliceEnabledMc,
but what you get instead is the original 40x40 movieclip.
This doesn't make sense at all, i have no idea what Adobe was thinking when they let this one through.
This was driving me crazy for a while now, and today i finally found the answer, as simple as it seems,
putting the my9SliceEnabledMc inside another sprite corrects the issue!!

//my9SliceEnabledMc is a 40 by 40 9-slice enabled movieclip on the library
var myContainer = new Sprite();
var my9SliceEnabledMc = new my9SliceEnabledMc();
myContainer.addChild(my9SliceEnabledMc);
my9SliceEnabledMc.width = 200;
my9SliceEnabledMc.height = 300;
var myBitmapData = new BitmapData(200,300);
myBitmapData.draw(myContainer);
addChild(new Bitmap(myBitmapData))


Also i should add that this is a major issue with PV3D since you cannot directly use a 9-slice item as a texture.

This entry was posted on Monday, December 3rd, 2007 at 1:41 pm and is filed under Actionscript3, Bitmap, Papervision3d, WorkAround. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.