diff options
Diffstat (limited to 'src/plugins/sensors/generic/genericrotationsensor.cpp')
| -rw-r--r-- | src/plugins/sensors/generic/genericrotationsensor.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/plugins/sensors/generic/genericrotationsensor.cpp b/src/plugins/sensors/generic/genericrotationsensor.cpp index af2800c..af2c3cf 100644 --- a/src/plugins/sensors/generic/genericrotationsensor.cpp +++ b/src/plugins/sensors/generic/genericrotationsensor.cpp @@ -82,8 +82,8 @@ bool genericrotationsensor::filter(QSensorReading *reading) // Note that the formula used come from this document: // http://www.freescale.com/files/sensors/doc/app_note/AN3461.pdf - pitch = qAtan(y / sqrt(x*x + z*z)) * RADIANS_TO_DEGREES; - roll = qAtan(x / sqrt(y*y + z*z)) * RADIANS_TO_DEGREES; + pitch = qAtan(y / qSqrt(x*x + z*z)) * RADIANS_TO_DEGREES; + roll = qAtan(x / qSqrt(y*y + z*z)) * RADIANS_TO_DEGREES; // Roll is a left-handed rotation but we need right-handed rotation roll = -roll; @@ -92,7 +92,7 @@ bool genericrotationsensor::filter(QSensorReading *reading) // Note that theta is defined as the angle of the Z axis relative // to gravity (see referenced document). It's negative when the // face of the device points downward. - qreal theta = qAtan(sqrt(x*x + y*y) / z) * RADIANS_TO_DEGREES; + qreal theta = qAtan(qSqrt(x*x + y*y) / z) * RADIANS_TO_DEGREES; if (theta < 0) { if (roll > 0) roll = 180 - roll; |