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6/2/2010 6:25:33 AM
Title: Can I take a snapshot of a main image from any X, Y position?
Hi,
I am trying to take a snap shot of my main Image “movie_mc” with the dimensions of “camera_mc”.
But snap shot starts from 0, 0 position of “movie_mc” only. How can I define the X, Y POSITION? So that, I will get exact snapshot of “movie_mc” where “camera_mc” is placed.
Can anybody tell me?
Thank you,
Sunil
var num:BitmapData = new BitmapData(camera_mc.width, camera_mc.height);
num.draw(movie_mc);
var reflectionBMP = new Bitmap(num);
addChild(reflectionBMP);
1
you can define a rectangle to capture and draw , you can mention the starting and ending points look at this code to achieve bitmap capturing with all the defined coordinates. Your actionscript code should be like this:
var num:BitmapData = new BitmapData(camera_mc.width, camera_mc.height);
//provide the xy and width height of your bitmap
var rect:Rectangle= new Rectangle(100,100,800,800);
num.draw(movie_mc,null,null,null,rect,true);
var reflectionBMP = new Bitmap(num);
addChild(reflectionBMP);
2
Oops! Sorry again. But it creates a rectangle with the 0, 0 X and Y position only, and if I am trying to change it the rectangle not ready to move anywhere.
Thank you,
Sunil
Thank you,
Sunil
var cameraVar:camera = new camera();
addChild(cameraVar);
cameraVar.x = 20;
cameraVar.y = 20;
var rect:Rectangle= new Rectangle(cameraVar.x,cameraVar.y,cameraVar.width,cameraVar.height);
var num:BitmapData = new BitmapData(cameraVar.width, cameraVar.height);
//provide the xy and width height of your bitmap
num.draw(movieVar,null,null,null,rect,true);
var reflectionBMP = new Bitmap(num);
addChild(reflectionBMP);
3
check this sample , simply replace the myTxt with your cameraVar. It captures only the myTxt box only where ever it is placed
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" minWidth="1024" minHeight="768" >
<mx:Script>
<![CDATA[
import flash.display.Bitmap;
private var capturedBitmap:Bitmap;
private var sp:Sprite;
private function init():void{
var previewBM:BitmapData = new BitmapData(myTxt.width,myTxt.height);
previewBM.draw(myTxt);
capturedBitmap = new Bitmap(previewBM);
sp = new Sprite();
sp.addChild(capturedBitmap);
rawChildren.addChild(sp);
//reduce the size of preview
sp.scaleX=.5;
sp.scaleY=.5;
}
]]>
</mx:Script>
<mx:Label x="33" y="231" text="Capture Bitmap sample"/>
<mx:Button x="305" y="186" click="init()" label="Capture Bitmap"/>
<mx:TextArea id="myTxt" x="45" y="27" width="201" height="166" text="Capture Bitmap sample
Capture Bitmap sample
Capture Bitmap sample
Capture Bitmap sample
Capture Bitmap sample"/>
</mx:Application>
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