Re: gEDA-user: Re: Composite/negative layers in gerbers

["J.D. Bakker" <jdb@xxxxxxxxxxxx>]

>  > "every decent cad product can generate copper pour with hatch stroke fill
>
> "every decent fab house can deal with standard gerber files"

True.

> I suspect that the effort required to support non-composite pours is
> the same effort required for copper island removal.  I.e. lots.

If you don't care about optimization it's a lot easier, since you 
need only look at one layer at a time. All you need to do is render 
the negative layer of your board one 'scanline' at a time, and draw 
thin horizontal lines to cover the copper on each scanline.

Huge files ? Yes. Hard ? No.

JDB
--
Jan-Derk Bakker, jdb@xxxxxxxxxxxx

The lazy man's proverb:
    'There's no business like slow business !'