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Showing content from http://developer.mozilla.org/en-US/docs/Web/API/OrientationSensor/populateMatrix below:

OrientationSensor: populateMatrix() method - Web APIs

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The populateMatrix() method of the OrientationSensor interface populates the given target matrix with the rotation matrix based on the latest sensor reading. The rotation matrix is shown below.

where:

• W = cos(θ/2)
• X = Vx * sin(θ/2)
• Y = Vy * sin(θ/2)
• Z = Vz * sin(θ/2)

populateMatrix(targetMatrix)

Because OrientationSensor is a base class, populateMatrix may only be read from one of its derived classes.

None (undefined).

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