And the answer is:    Preview shrinks images on Mac OS X.

The image itself is perfectly fine.

L.



On 1/4/12 5:54 AM, Lawson English wrote:
> In 4.3, on Mac OS X Snow Leopard running cog, this code:
>
> canvas := FormCanvas on: (Form extent: Display extent depth: Display 
> depth).
> canvas setOrigin: (0 at 0) clipRect: (-10000 @ -10000 extent: 20000 @ 
> 20000).
> World fullDrawOn: canvas.
>
> canvas form writeJPEGfileNamed: 'screen.jpg'.
>
> Produces an image that is slightly smaller than the original squeak 
> World. The screengrab menu produces the same artifact. Its not too big 
> a deal but I was hoping to render the entire desktop into an OpenGL 
> texture and then use it  as the ultimate texture demo by making it a 
> live GUI inside of the opengl window, which I had planned to fill the 
> squeak window. It won't be that hard to workaround, but it seems odd 
> that there's a slight discrepancy in the size of the image vs the size 
> of the World morph.
>
> L.
>
>