diff options
Diffstat (limited to 'core/java/android/gesture/GestureUtils.java')
| -rw-r--r-- | core/java/android/gesture/GestureUtils.java | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/core/java/android/gesture/GestureUtils.java b/core/java/android/gesture/GestureUtils.java index dd221fc..416279e 100644 --- a/core/java/android/gesture/GestureUtils.java +++ b/core/java/android/gesture/GestureUtils.java @@ -293,7 +293,7 @@ public final class GestureUtils { } float deltaX = currentPointX - lstPointX; float deltaY = currentPointY - lstPointY; - float distance = (float) Math.sqrt(deltaX * deltaX + deltaY * deltaY); + float distance = (float) Math.hypot(deltaX, deltaY); if (distanceSoFar + distance >= increment) { float ratio = (increment - distanceSoFar) / distance; float nx = lstPointX + ratio * deltaX; @@ -379,7 +379,7 @@ public final class GestureUtils { for (int i = 0; i < count; i += 2) { float dx = points[i + 2] - points[i]; float dy = points[i + 3] - points[i + 1]; - sum += Math.sqrt(dx * dx + dy * dy); + sum += Math.hypot(dx, dy); } return sum; } @@ -388,13 +388,13 @@ public final class GestureUtils { float totalLen = computeTotalLength(points); float dx = points[2] - points[0]; float dy = points[3] - points[1]; - return (float) Math.sqrt(dx * dx + dy * dy) / totalLen; + return (float) Math.hypot(dx, dy) / totalLen; } static float computeStraightness(float[] points, float totalLen) { float dx = points[2] - points[0]; float dy = points[3] - points[1]; - return (float) Math.sqrt(dx * dx + dy * dy) / totalLen; + return (float) Math.hypot(dx, dy) / totalLen; } /** |