all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
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.)



  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAP_d_8VRAiFvtXx+Q2mqnawKUHVZhC9F8pUS-NZN3_OURCHkBA@mail.gmail.com \
    --to=yuri.v.khan@gmail.com \
    --cc=dboyd2@mmm.com \
    --cc=help-gnu-emacs@gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/emacs.git
	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.