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Lines Matching defs:beta

54   // y_acc = - cos(gamma) * sin(beta)
55   // z_acc = cos(beta) * cos(gamma)
64   double beta = kRad2deg * atan2(-axis_value[1], axis_value[2]);
68   // this point, beta is [-180, 180] and gamma is [-90, 90], but the spec has
70   if (beta == 180.0)
71     beta = -180;  // -180 == 180 (upside-down)
76   DCHECK_GE(beta, -180.0);
77   DCHECK_LT(beta,  180.0);
82   buffer->data.beta = beta;