我正在尝试使用BitmapData和copyPixels方法抓取部分阶段区域:
bmd = new BitmapData(stage.stageWidth, stage.stageHeight);
bmdRect = new BitmapData(320, 240);
rectangle = new Rectangle(360, 20, 320, 240);
bmdRect.copyPixels(bmd, rectangle, new Point());
bmd.draw(bmp);
bmp = new Bitmap(bmdRect);
var myEncoder:JPGEncoder = new JPGEncoder(100);
var byteArray:ByteArray = myEncoder.encode(bmd);
我得到的结果是一个空的.jpg我很确定错误是在Bitmap程序中而不是保存的...
答案 0 :(得分:6)
最后使用此解决方案复制舞台的部分
(我从(360,20)和之后复制了舞台上的所有内容)
var bitmapdata:BitmapData = new BitmapData(stage.stageWidth, stage.stageHeight);
bitmapdata.draw(stage);
var bitmapDataA: BitmapData = new BitmapData(300, 250);
bitmapDataA.copyPixels(bitmapdata, new Rectangle(360, 20, 320, 240), new Point(0, 0));
var myEncoder:JPGEncoder = new JPGEncoder(90);
var byteArray:ByteArray = myEncoder.encode(bitmapDataA);
答案 1 :(得分:0)
你不能只打电话给bmd.draw(stage)
吗?
答案 2 :(得分:0)
var stage_snapshot:BitmapData = new BitmapData(600, 120);
var myRectangle:Rectangle = new Rectangle(0, 0, 600, 120);
var myMatrix:Matrix = new Matrix();
var translateMatrix:Matrix = new Matrix();
translateMatrix.translate(-100, -225);
myMatrix.concat(translateMatrix);
stage_snapshot.draw(stage,myMatrix,null,null,myRectangle);
var encoded_jpg:JPGEncoder = new JPGEncoder(100);
var jpg_binary:ByteArray = new ByteArray();
jpg_binary = encoded_jpg.encode(stage_snapshot);