4 * Copyright (c) 2014 Samsung Electronics Co., Ltd.
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
10 * http://www.apache.org/licenses/LICENSE-2.0
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.
20 #ifndef _FUSION_UTIL_H_
21 #define _FUSION_UTIL_H_
28 int quat_to_matrix(const float *quat, float *R);
29 int matrix_to_quat(const float *R, float *quat);
30 int calculate_rotation_matrix(float *accel, float *geo, float *R, float *I);
31 int quat_to_orientation(const float *rotation, float &azimuth, float &pitch, float &roll);
35 #endif /* __cplusplus */
37 #endif /* _FUSION_UTIL_H_ */