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Re: transparency and resolution don't go together

From: David Kastrup
Subject: Re: transparency and resolution don't go together
Date: Tue, 07 Jan 2014 15:28:29 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux)

"Phil Holmes" <address@hidden> writes:

> "David Kastrup" <address@hidden> wrote in message
> news:address@hidden
>> "Phil Holmes" <address@hidden> writes:
>>> Looks like a bug to me: it doesn't work on windows even if you ignore
>>> the command line and set the options in the lilypond file:
>>> #(ly:set-option 'resolution 169)
>>> #(ly:set-option 'pixmap-format "pngalpha")
>>> resolution is set, tranparent not.  Comment out the resolution line
>>> and all is OK.
>> Is there a way to see what options Ghostscript is getting called with
>> from LilyPond?
>> Under Linux, it would be easy enough to point PATH at directory
>> including a "gs" script that not just calls gs but also records the
>> command line arguments.
>> Windows?
> Just knocked up a c# app.  Results all look like they should.  Further
> testing shows that the two options together work for resolutions up to
> 160 dpi, but fail above that...

That's more or less the switchover point ( > 150 dpi) between
nostrokeadjust and strokeadjust.  However, 2.16 and 2.18 always switched
strokeadjust on explicitly anyway.  It's only 2.19 that lets the
"natural" setting run its course.  So I am pretty much at a loss here.

At any rate, it would appear that it is Ghostscript itself that cannot
deal with the settings for whatever reason.

David Kastrup

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