1 /*
2 * Copyright (C) 2018 Alberto Irurueta Carro (alberto@irurueta.com)
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 package com.irurueta.navigation.indoor;
17
18 import com.irurueta.algebra.Matrix;
19 import com.irurueta.geometry.Point;
20
21 import java.io.Serializable;
22
23 /**
24 * Contains a located signal reading associated to a given radio source
25 * (e.g. Wi-Fi access point or bluetooth beacon).
26 *
27 * @param <P> a {@link Point} type.
28 */
29 public interface ReadingLocated<P extends Point<?>> extends Serializable {
30
31 /**
32 * Gets position where reading was made.
33 *
34 * @return position where reading was made.
35 */
36 P getPosition();
37
38 /**
39 * Gets covariance of inhomogeneous coordinates of current position (if available).
40 *
41 * @return covariance of position or null.
42 */
43 Matrix getPositionCovariance();
44 }