commit 6674d9bf0a53387df0cf8482458cf5f9ab274ec0
author Jeff Brown <jeffbrown@android.com> Tue Jun 07 16:50:14 2011 -0700
committer Jeff Brown <jeffbrown@android.com> Tue Jun 07 16:50:14 2011 -0700
tree 97da2f8df8afc3a22b1d954e9b96a776d3f9477a
parent 9181a5f40cf5ac7d413d5bc3bd6c15cc6d13705f

Fix swipe gesture cosine calculation.
Bug: 4124987

Recent changes introduced a multiplication factor into the
distance calculation which ended up being absent from the
dot product calculation.

Change-Id: Ia367912b9ac09b6285d5a498a0c271563c9e9e39

services/input/InputReader.h

diff --git a/services/input/InputReader.h b/services/input/InputReader.h
index 82faf7d..fa3239c 100644
--- a/services/input/InputReader.h
+++ b/services/input/InputReader.h
@@ -143,7 +143,7 @@
             pointerGestureTapSlop(10.0f), // 10 pixels
             pointerGestureMultitouchSettleInterval(100 * 1000000LL), // 100 ms
             pointerGestureMultitouchMinDistance(15), // 15 pixels
-            pointerGestureSwipeTransitionAngleCosine(0.5f), // cosine of 45degrees
+            pointerGestureSwipeTransitionAngleCosine(0.2588f), // cosine of 75 degrees
             pointerGestureSwipeMaxWidthRatio(0.25f),
             pointerGestureMovementSpeedRatio(0.8f),
             pointerGestureZoomSpeedRatio(0.3f) { }