From 358a22fc6840f78769b65a827c7acd9fc5b22c2c Mon Sep 17 00:00:00 2001 From: Matt Mayfield Date: Tue, 7 Aug 2018 09:34:28 -0500 Subject: [PATCH] doc/user: add 90-degree scroll behavior --- doc/user/scrolling.rst | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/doc/user/scrolling.rst b/doc/user/scrolling.rst index 92cfdbc8..c828a3d6 100644 --- a/doc/user/scrolling.rst +++ b/doc/user/scrolling.rst @@ -59,6 +59,10 @@ movements will translate into tiny scroll movements. Scrolling in both directions at once is possible by meeting the required distance thresholds to enable each direction separately. +When a scroll gesture remains close to perfectly straight, it will be held to +exact 90-degree angles; but if the gesture moves diagonally, it is free to +scroll in any direction. + Two-finger scrolling requires the touchpad to track both touch points with reasonable precision. Unfortunately, some so-called "semi-mt" touchpads can only track the bounding box of the two fingers rather than the actual