Instead of using copyPixels, try something
like this This function crops the bitmapData to the width and
height with respect to the center of the image.
public function centerAndCrop( bitmapData :
BitmapData, cWidth : Number, cHeight : Number ) : BitmapData {
if(cWidth
bitmapData.width) cWidth = bitmapData.width;
if(cHeight
bitmapData.height) cHeight = bitmapData.height;
if(cWidth 1 ||
cHeight 1) return bitmapData
var translateMatrix :
Matrix = new Matrix();
var xOffset : Number
= -Math.abs((bitmapData.width - cWidth)/2);
var yOffset : Number
= -Math.abs((bitmapData.height - cHeight)/2);
translateMatrix.identity();
translateMatrix.translate(xOffset,
yOffset);
var returnBitmapData
: BitmapData = new BitmapData(cWidth, cHeight, true);
returnBitmapData.draw(bitmapData,
translateMatrix);
return
returnBitmapData;
}
Hope that helps.
-Andy
_
Andrew Trice
Cynergy Systems, Inc.
http://www.cynergysystems.com
Blog: http://www.cynergysystems.com/blogs/page/andrewtrice
Email: [EMAIL PROTECTED]
Office: 866-CYNERGY
From:
flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of learner
Sent: Thursday, October 12, 2006
3:37 AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] cropping
image...with Copypixels
hello ,
Iam trying to do cropping of image which is dynamically assigned to a
vbox component
and i have used following Code:
var bd : BitmapData = new BitmapData(h,w);
var m1 : Matrix = new Matrix();
bd.draw (target, m1);
var puzzlePieceBmp:BitmapData = new BitmapData(target.width,target.height);
puzzlePieceBmp.copyPixels(bd, new Rectangle(x1,y1,h,w), new
Point(0, 0));
imageid.source = puzzlePieceBmp;
this is not working properly, The cropped portion is not of desired height and
width, Can any body suggest me how the Rectangle parameter works for copypixesl
method.
Its been more than 2 days i am working on this part and i tired searching all
forum ..reading live docs about copypixelsbut no gain
please guide me in this. Or any one can point me to some URL where the cropping
in flex is demonstrated.
I would be very grateful
Regards
PS
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