ztimson/map-alliance
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updated compass information

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Zakary Timson
2019-07-09 17:44:17 -04:00
parent 07814dbde2
commit 1eef462494
1 changed files with 22 additions and 12 deletions
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34
src/app/physics/physics.service.ts
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@@ -1,5 +1,6 @@
import {Injectable} from '@angular/core';
import {EventEmitter, Injectable} from '@angular/core';
import {BehaviorSubject, combineLatest} from "rxjs";
import {debounceTime} from "rxjs/operators";
@Injectable({
providedIn: 'root'
@@ -7,17 +8,20 @@ import {BehaviorSubject, combineLatest} from "rxjs";
export class PhysicsService {
private motionTimestamp;
requireCalibration = new EventEmitter();
calibrate?: number;
info = new BehaviorSubject(null);
motion = new BehaviorSubject<DeviceMotionEvent>(null);
orientation = new BehaviorSubject<DeviceOrientationEvent>(null);
position = new BehaviorSubject<Coordinates>(null);
position = new BehaviorSubject<Position>(null);
speed = new BehaviorSubject(null);
constructor() {
// Gather physical data
window.addEventListener('deviceorientation', orientation => this.orientation.next(orientation));
window.addEventListener('devicemotion', motion => this.motion.next(motion));
navigator.geolocation.watchPosition(pos => this.position.next(pos.coords));
navigator.geolocation.watchPosition(position => this.position.next(position));
// Calculate speed from motion events
this.motion.subscribe(event => {
@@ -34,20 +38,26 @@ export class PhysicsService {
});
// Combine data into one nice package
combineLatest(this.position, this.orientation, this.speed).subscribe(data => {
combineLatest(this.position, this.orientation.pipe(debounceTime(200)), this.speed).subscribe(data => {
if(!data[0]) return;
let info = {
accuracy: data[0].accuracy,
altitude: data[0].altitude,
altitudeAccuracy: data[0].altitudeAccuracy,
heading: data[0].heading,
latitude: data[0].latitude,
longitude: data[0].longitude,
speed: data[0].speed
accuracy: data[0].coords.accuracy,
altitude: data[0].coords.altitude,
altitudeAccuracy: data[0].coords.altitudeAccuracy,
heading: data[0].coords.heading,
latitude: data[0].coords.latitude,
longitude: data[0].coords.longitude,
speed: data[0].coords.speed
};
if(info.heading == null && !!data[1]) info.heading = data[1].alpha;
if(info.heading == null && !!data[1]) {
if(!data[1].absolute && this.calibrate == null) this.requireCalibration.emit();
this.calibrate = 0;
info.heading = data[1].alpha + this.calibrate;
if(this.calibrate > 360) this.calibrate -= 360;
if(this.calibrate < 0) this.calibrate += 360
}
if(info.speed == null && !!data[2]) info.speed = Math.sqrt(data[2].x**2 + data[2].y**2 + data[2].z**2);
this.info.next(info);