Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import android.util.Log;

public class Main {
    private static final String TAG = "VRUtil";

    public static void getEulerAngles(float[] headView, float[] output) {
        float pitch = (float) Math.asin((double) headView[6]);
        float yaw;
        float roll;
        if (Math.abs(headView[6]) < 0.9999999999D) {
            yaw = (float) Math.atan2((double) (-headView[2]), (double) headView[10]);
            roll = (float) Math.atan2((double) (-headView[4]), (double) headView[5]);
        } else {
            yaw = 0.0F;
            roll = (float) Math.atan2((double) headView[1], (double) headView[0]);
        }
        output[0] = -pitch;
        output[1] = -yaw;
        output[2] = -roll;
        float pitchAngle = (float) Math.toDegrees(output[0]);
        float yawAngle = (float) Math.toDegrees(output[1]);
        float rollAngle = (float) Math.toDegrees(output[2]);

        Log.e(TAG, String.format("pitchAngle=%f, yawAngle=%f, rollAngle=%f", pitchAngle, yawAngle, rollAngle));
    }
}