BitMapData Help

[lemar]

I want to print the screen using bitMapData.

var bmd:BitmapData=new BitmapData(700,500,true,0xFFFFFFFF);
//draw the bitmapData from the captureContainer to the bitmapData object;

bmd.draw(stage, new Matrix(), null, null, null, false );

I have it working but the image being drawn starts from the Top Left of the stage I need it to start x 15 and y 80 is there a way to do this?

Ive tried bmd.scroll(15,80) but it just make the image look funny.

Thanks

[5TonsOfFlax]

The matrix argument of draw can be used to rotate, translate or scale, while the clipRect argument can be used to define a portion to draw.

[lemar]

Thanks 5ton I'll try that.

[lemar]

How do I use the clipRect argument in this case?

[5TonsOfFlax]

Here's the livedocs:
http://help.adobe.com/en_US/AS3LCR/F...ata.html#draw()

I don't have example code to be sure, but the docs indicate that the clipRect defines a rectangle in the source object to draw. I do not think that this rectangle is then moved anywhere, it simply defines which pixels are eligible to be drawn. I've had trouble getting draw to work like I expected when trying to draw only part of an object. But unfortunately, I don't remember what exactly I did to fix it.

[moagrius]

to draw the stage from x15, y80:

var bmd:BitmapData = new BitmapData(stage.stageWidth,stage.stageHeight);
var rect:Rectangle = new Rectangle(15,80,stage.stageWidth,stage.stageHeight);
bmd.draw(stage, null, null, null, rect); 

EDIT: this'll draw plain white from x0 to x15 and y0 to y15... if you want that transparent and w/o background, change this:

var bmd:BitmapData = new BitmapData(stage.stageWidth,stage.stageHeight); 

to this

var bmd:BitmapData = new BitmapData(stage.stageWidth,stage.stageHeight,true,0x00FFFFFF) 

[lemar]

Thanks Moagrius,

It is still drawing a white border at the top and sides. I just want the jpg it draws to be the portion that is in the middle of the stage that is 700x500 that is 15x, 80y from top.

[moagrius]

it shouldn't :/ - did you use that last line of code i gave to draw without background?

i just tested and it seems to work fine - try this in a new fla - click and drag around to see the drawn bitmap.

var boxes:Sprite = new Sprite();
addChild(boxes);
var container:Sprite = new Sprite();
addChild(container);
container.addEventListener("mouseDown",startdrag);
container.addEventListener("mouseUp",enddrag);

var c:Number = 5;
var w:Number = stage.stageWidth/c;
var h:Number = stage.stageHeight/c;
for(var i:int=0;i<c;i++){
    for(var j:int=0;j<c;j++){
        var box:Shape = new Shape();
        box.graphics.beginFill(0xffffff * Math.random());
        box.graphics.drawRect(w * i,h * j,w,h);
        boxes.addChild(box);
    }
}

var bmd:BitmapData = new BitmapData(700,500,true,0x00FFFFFF); 
var rect:Rectangle = new Rectangle(15,80,700,500); 
bmd.draw(stage, null, null, null, rect); 
var bmp:Bitmap = new Bitmap(bmd);

function startdrag(event:Event):void{
    container.startDrag();
}
function enddrag(event:Event):void{
    container.stopDrag();
}
container.addChild(bmp);