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Re: [Groff] [heirloom] getting dashes when a line is requested


From: Ralph Corderoy
Subject: Re: [Groff] [heirloom] getting dashes when a line is requested
Date: Thu, 25 Sep 2014 10:22:56 +0100

Hi Blake,

> Carsten wrote:
> > Have you tested that with PDF?  If I magnify it I see a continous
> > line.
> 
> It looks broken into dashes on the PDF for me.

Different PDF viewers show it differently IME.  And zoom level matters
too.  Here with evince,

    A\(em\h'-\w'\(em'/2'\(emB
    A\(em\(emB

shows as darker on the overlap with the first line, and also very
slightly where the two em-dashes meet on the second line.  xmag(1) may
be useful to see the anti-aliasing employed.  But if I zoom in as far as
possible, both lines are solid black, no anti-aliasing grey, and no
discernable join.

Cheers, Ralph.



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