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am b710a50a: Merge "fix [3452750] Issue 14634: SensorManager.getRotationMatrixFromVector gets NaN-Values [external] [DO NOT MERGE]" into gingerbread

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* commit 'b710a50ab6ca36b502f548e8551f620e98bbb1d8':
  fix [3452750] Issue 14634: SensorManager.getRotationMatrixFromVector gets NaN-Values [external] [DO NOT MERGE]
This commit is contained in:
Mathias Agopian
2011-03-09 16:57:32 -08:00
committed by Android Git Automerger
parent a7c836ddc0 b710a50ab6
commit b4341ba697
1 changed files with 2 additions and 1 deletions
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3
core/java/android/hardware/SensorManager.java
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@ -1970,7 +1970,8 @@ public class SensorManager
if (rotationVector.length == 4) { if (rotationVector.length == 4) {
q0 = rotationVector[3]; q0 = rotationVector[3];
} else { } else {
q0 = (float)Math.sqrt(1 - q1*q1 - q2*q2 - q3*q3); q0 = 1 - q1*q1 - q2*q2 - q3*q3;
q0 = (q0 > 0) ? (float)Math.sqrt(q0) : 0;
} }
float sq_q1 = 2 * q1 * q1; float sq_q1 = 2 * q1 * q1;