Accelrometer?

Maybe I just don't understand how an accelerometer, but it seems to me he's faking just the force of gravity on a particular axis (IE... When the face is upward or down the z value is maxed out at each end, even for other axes). This is how is he supposed to be or should it actually simulate acceleration (speed)?

Gravity is not simulated, but it is detected by the accelrometer.  Since the JavaDocs:

Acceleration sensors return values of G-force along the axes X, Y and Z, compared to the Earth, as follows:

  • X axis goes East (negative values) to West (positive values);
  • Axis is extends from North to South (positive values) (negative values); and
  • Z axis goes from the front of the device BlackBerry (negative values) to the rear of the unit (positive values).

For example, if your handheld is laid flat on a table, the X values and are equal to 0, while Z is equal to 1000 (which represents the G-Force, or 9,80665 m/S2). In free fall, the three values are equal to 0. The value of G-Force is specified by the constant G_FORCE_VALUE.

Tags: BlackBerry Developers

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