我有代码在我的 swf 中创建舞台的实时屏幕截图。之后,它另存为 jpeg。都很好。
只是,我不需要整个舞台,我只需要一个剪裁:
x,y: 357,341威特,身高: 319,483
我的代码看起来像这样。
在哪里以及如何插入复制像素功能?
(我是Flash新手,所以对我放轻松:-)
function mouseReleaseSave(event:MouseEvent):void {
import com.adobe.images.JPGEncoder;
import flash.events.Event;
import flash.net.URLLoader;
import flash.net.URLRequestHeader;
import flash.net.URLRequest;
var jpgSource:BitmapData = new BitmapData(this.stage.stageWidth, this.stage.stageHeight);
jpgSource.draw(this.stage);
var jpgEncoder:JPGEncoder = new JPGEncoder(70);
var jpgStream:ByteArray = jpgEncoder.encode(jpgSource);
//set the request's header,method and data
var header:URLRequestHeader = new URLRequestHeader("Content-type","application/octet-stream");
var loader:URLLoader = new URLLoader();
//sends jpg bytes to saveJPG.php script
var myRequest:URLRequest = new URLRequest("saveJPG.php");
myRequest.requestHeaders.push(header);
myRequest.method = URLRequestMethod.POST;
myRequest.data = jpgStream;
loader.load(myRequest);
//fire complete event;
loader.addEventListener(Event.COMPLETE,saved);
function saved(e:Event){
//trace the image file name
trace(loader.data);
}
}
这应该有帮助:
var subArea:Rectangle = new Rectangle(0,0, 319,483 );
var newBmp:Bitmap = new BitmapData( 319,483 );
var cutoutBmp:Bitmap = new Bitmap( newBmp, PixelSnapping.ALWAYS, true );
cutoutBmp.bitmapData.draw( jpgSource, new Matrix(1, 0, 0, 1, -357, -341) , null, null, subArea, true );