Merge "Adding AK8975 geo-sensor info in sensors.xml.in required by geo-plugin" into...
[platform/core/system/sensord.git] / src / sensor_fusion / standalone / gravity_sensor.cpp
1 /*
2  * sensord
3  *
4  * Copyright (c) 2014 Samsung Electronics Co., Ltd.
5  *
6  * Licensed under the Apache License, Version 2.0 (the "License");
7  * you may not use this file except in compliance with the License.
8  * You may obtain a copy of the License at
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  *
18  */
19
20 #ifdef _GRAVITY_SENSOR_H
21
22 #define GRAVITY         9.80665
23
24 sensor_data<float> gravity_sensor::get_gravity(const sensor_data<float> accel,
25                                 const sensor_data<float> gyro, const sensor_data<float> magnetic)
26 {
27         euler_angles<float> orientation;
28         sensor_data<float> gravity;
29
30         orientation = orien_sensor.get_orientation(accel, gyro, magnetic);
31
32         gravity.m_data.m_vec[0] = GRAVITY * sin(orientation.m_ang.m_vec[0]);
33         gravity.m_data.m_vec[1] = GRAVITY * sin(orientation.m_ang.m_vec[1]);
34         gravity.m_data.m_vec[2] = GRAVITY * cos(orientation.m_ang.m_vec[0]) *
35                                                                         cos(orientation.m_ang.m_vec[1]);
36
37         return gravity;
38 }
39
40 #endif