Created
July 9, 2022 04:57
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| export interface RadarData { | |
| id: number; | |
| rcs: number; | |
| dist_lat: number; | |
| dist_long: number; | |
| dyn_prop: number; | |
| vrel_lat: number; | |
| vrel_long: number; | |
| } | |
| export interface NearestObject extends RadarData { | |
| distanceToObject: number; | |
| } | |
| function absDistance(a1: number, a2: number, b1: number, b2: number) { | |
| return Math.sqrt(Math.pow(a1 - b1, 2) + Math.pow(a2 - b2, 2)); | |
| } | |
| export function getMinDistanceOfObject( | |
| detectedObjects: Array<RadarData> | |
| ): NearestObject { | |
| return detectedObjects.reduce( | |
| (prev, curr) => { | |
| const prevPointDistance = absDistance( | |
| 0, | |
| 0, | |
| prev.dist_lat, | |
| prev.dist_long | |
| ); | |
| const currPointDistance = absDistance( | |
| 0, | |
| 0, | |
| curr.dist_lat, | |
| curr.dist_long | |
| ); | |
| return prevPointDistance < currPointDistance | |
| ? { | |
| ...prev, | |
| distanceToObject: prevPointDistance, | |
| } | |
| : { | |
| ...curr, | |
| distanceToObject: currPointDistance, | |
| }; | |
| }, | |
| { | |
| id: -1, | |
| rcs: -1, | |
| dyn_prop: -1, | |
| vrel_lat: -1, | |
| vrel_long: -1, | |
| dist_lat: Infinity, | |
| dist_long: Infinity, | |
| distanceToObject: Infinity, | |
| } | |
| ); | |
| } |
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