bitmapData - stupid question probably

[juan kennaugh]

Hi all

I'm trying to create a bitmapData - with the dimensions taken from an
MovieClip like this:

var myBitmapData:BitmapData = new
BitmapData(mc.width,mc.height,true,0x000000);

the MC has been added to the stage and I can trace the dimensions - but
this errors...

"ArgumentError: Error #2015: Invalid BitmapData"

it works if I just set the dimensions manually.

Any ideas what's going on - I'm sure it's a stupid thing I'm doing

Cheers

Juan

[Richard Davey]

How large are width / height? And are they round numbers? Maybe cast them to an int in the constructor.

Cheers,

Rich

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[juan kennaugh]

Hi

no - I've rounded them like this:

    var w:int = Math.round(mc.width) as int;
    var h:int = Math.round(mc.height) as int;

    var myBitmapData:BitmapData = new BitmapData(w,h,true,0x000000);

and no joy???

wierd

Juan

On 28/07/2011 15:30, Richard Davey wrote:

How large are width / height? And are they round numbers? Maybe cast them to an int in the constructor.

Cheers,

Rich

On 28 July 2011 15:20, juan kennaugh <con...@jkennaugh.co.uk> wrote:

Hi all

I'm trying to create a bitmapData - with the dimensions taken from an MovieClip like this:

var myBitmapData:BitmapData = new BitmapData(mc.width,mc.height,true,0x000000);

the MC has been added to the stage and I can trace the dimensions - but this errors...

"ArgumentError: Error #2015: Invalid BitmapData"

it works if I just set the dimensions manually.

Any ideas what's going on - I'm sure it's a stupid thing I'm doing

Cheers

Juan

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[s'unya]

On 28 July 2011 15:36, juan kennaugh <con...@jkennaugh.co.uk> wrote:

Hi

no - I've rounded them like this:

    var w:int = Math.round(mc.width) as int;
    var h:int = Math.round(mc.height) as int;

    var myBitmapData:BitmapData = new BitmapData(w,h,true,0x000000);

and no joy???

wierd

Juan

Seems rather overdoing it, but if you trace out the w and h, what do you get?

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[Richard Davey]

Yeah that was my previous question too - what are the actual width / height of the clip? Because there's nothing wrong with the line below that creates the BitmapData assuming w and h are within a valid range for it.

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[juan kennaugh]

I've worked it out...

the width and height trace out fine.

It's actually due to the maximum allowed size of a bitmapdata in flash. My movieClip is created dynamically from hundreds of text fields - and obviously, my movieclip's width is greater than the maximum width of a bitmap.

Doh!

Cheers for trying to help though

Juan

[Richard Davey]

Thought as much :)

You'll be pleased to know that Flash Player 11 removes this limitation (there's no max size on bitmapData any more)

Cheers,

Rich

[juan kennaugh]

Good!

Cheers

Juan

[tailless]

Until then -  or if you need to support flash player 10, this is a good guide to bitmap size : 

http://www.bit-101.com/blog/?p=1426

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