- From: Ian Hickson <ian@hixie.ch>
- Date: Fri, 11 May 2007 22:11:40 +0000 (UTC)
On Mon, 5 Mar 2007, Mathieu HENRI wrote:
>
> The ImageData [1] object used in Canvas should be instantiable like
> HTMLImageElement are using the Image constructor [2,3].
You can already do that:
var imagedata = {
height: 1,
width: 1,
data: [0,0,0,0]
};
> * Specify the ImageData constructor should go in 3.14.7.1.10. Pixel
> manipulation [4]:
>
> ImageData(in unsigned long w, in unsigned long h)
>
> Constructs an ImageData object. The new object's width and height
> attributes must be set to respectively w and h. The new object's data is
> set to transparent black, that is w*h*4 integers set to 0.
var imagedata = {
height: h,
width: w,
data: [i for (i in function (n) { for (let i = 0; i < n; i += 1) yield 0 }(w*h*4)) ]
};
--
Ian Hickson U+1047E )\._.,--....,'``. fL
http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,.
Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
Received on Friday, 11 May 2007 15:11:40 UTC