| 1 | /* |
| 2 | * Copyright 2016-2017 Uber Technologies, Inc. |
| 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 | /** @file bbox.h |
| 17 | * @brief Geographic bounding box functions |
| 18 | */ |
| 19 | |
| 20 | #ifndef BBOX_H |
| 21 | #define BBOX_H |
| 22 | |
| 23 | #include <stdbool.h> |
| 24 | #include "geoCoord.h" |
| 25 | |
| 26 | /** @struct BBox |
| 27 | * @brief Geographic bounding box with coordinates defined in radians |
| 28 | */ |
| 29 | typedef struct { |
| 30 | double north; ///< north latitude |
| 31 | double south; ///< south latitude |
| 32 | double east; ///< east longitude |
| 33 | double west; ///< west longitude |
| 34 | } BBox; |
| 35 | |
| 36 | bool bboxIsTransmeridian(const BBox* bbox); |
| 37 | void bboxCenter(const BBox* bbox, GeoCoord* center); |
| 38 | bool bboxContains(const BBox* bbox, const GeoCoord* point); |
| 39 | bool bboxEquals(const BBox* b1, const BBox* b2); |
| 40 | int bboxHexRadius(const BBox* bbox, int res); |
| 41 | |
| 42 | #endif |
| 43 | |