From: Yuri Khan <yuri.v.khan@gmail.com>
To: "J. David Boyd" <dboyd2@mmm.com>
Cc: "help-gnu-emacs@gnu.org" <help-gnu-emacs@gnu.org>
Subject: Re: Is it possible to scroll smoothly in Emacs?
Date: Fri, 5 Dec 2014 23:15:37 +0700 [thread overview]
Message-ID: <CAP_d_8VRAiFvtXx+Q2mqnawKUHVZhC9F8pUS-NZN3_OURCHkBA@mail.gmail.com> (raw)
In-Reply-To: <gjub4mtaywrh.fsf@W0144758.usac.mmm.com>
On Fri, Dec 5, 2014 at 8:52 PM, J. David Boyd <dboyd2@mmm.com> wrote:
> I don't think I understand. My emacs seems to scroll fairly smoothly to me.
> What exactly are we talking about when we say 'smooth scroll'?
Basically, the antithesis of doing whatever possible to ensure
acceptable performance when editing over a slow link.
In short: using non-integer line offsets (down to single pixels if
performance allows); remaining responsive during the scroll; and
ending the scroll with a deceleration such that the first two
derivatives of the scroll offset are zero at the end and the third
derivative stays continuous throughout. (Optionally, pressing Page
Down might also accelerate from 0 to the scroll speed according to the
same profile.)
next prev parent reply other threads:[~2014-12-05 16:15 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.15085.1417465063.1147.help-gnu-emacs@gnu.org>
2014-12-03 17:12 ` Is it possible to scroll smoothly in Emacs? Bug Dout
2014-12-03 18:40 ` Drew Adams
2014-12-03 19:12 ` Stefan Monnier
2014-12-04 13:41 ` Phillip Lord
2014-12-04 21:04 ` Marcin Borkowski
2014-12-04 21:47 ` H. Dieter Wilhelm
2014-12-04 21:50 ` Marcin Borkowski
2014-12-04 22:35 ` Stefan Monnier
2014-12-05 14:52 ` J. David Boyd
2014-12-05 16:15 ` Yuri Khan [this message]
2014-12-05 20:24 ` Marcin Borkowski
2014-12-01 20:17 Marcin Borkowski
2014-12-01 20:43 ` Eli Zaretskii
2014-12-01 22:15 ` Marcin Borkowski
2014-12-02 3:34 ` Eli Zaretskii
2014-12-02 12:12 ` Marcin Borkowski
2014-12-02 13:50 ` Eli Zaretskii
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