[my-place] Refactoring: Code separation.
[platform/core/context/context-provider.git] / src / my-place / visit-categer / PiecewiseLin.h
1 /*
2  * Copyright (c) 2016 Samsung Electronics Co., Ltd.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 #ifndef _CONTEXT_PLACE_RECOGNITION_PIECEWISE_LIN_
18 #define _CONTEXT_PLACE_RECOGNITION_PIECEWISE_LIN_
19
20 #include "../facade/UserPlacesTypes.h"
21
22 namespace ctx {
23
24         /*
25          * Piecewise linear function. Used for approximation.
26          */
27         class PiecewiseLin {
28
29         private:
30                 std::vector<num_t> __xs; // nodes
31                 std::vector<num_t> __vs; // values in nodes
32                 size_t __n;
33
34         public:
35                 PiecewiseLin(std::vector<num_t> xs, std::vector<num_t> vs);
36                 num_t value(num_t x);
37
38         };      /* PiecewiseLin */
39
40 }       /* namespace ctx */
41
42 #endif /* End of _CONTEXT_PLACE_RECOGNITION_PIECEWISE_LIN_ */