Could not duplicate the error, however if you have a stroke applied to your shapes that is the same colour as your fill, that may explain what we are seeing here. :)

Boolean shape ops are done to fills only, and do not take into account line thickness on the resulting paths (this is intentional).


On Sat, Apr 23, 2016 at 6:21 PM, Brynn <brynn@...3089...> wrote:
Hi Friends,
        It seems like I should know the answer to this.  But I don't recall
hearing about it.
        Starting with these 2 rings, which have fill and no stroke:
        I duplicate both, and then Difference.  At 100% zoom they look ok.
But zoom in (in this case, all the way, for best view) and you can see that
the Difference wasn't correct.
        It's not a huge amount, but I would expect there shouldn't be any
difference at all.  This on Windows 7, 64-bit, sp1, Inkscape 0.91, 32-bit,
exe installer.
        Is that a bug?  Or is there some reason it's expected not to be

Thanks for your help  :-)

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