70 lines
2.2 KiB
TypeScript
70 lines
2.2 KiB
TypeScript
import {Injectable} from '@angular/core';
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import{Cord} from "../interface/cord";
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@Injectable({
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providedIn: 'root'
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})
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export class positionService{
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cord: Cord = { lat: 0, lon: 0 };
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/*getDistanceBetweenCoordinates(lat1: number | undefined, lon1: number | undefined, lat2: number, lon2: number) {
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if (lat1 === undefined || lon1 === undefined) {
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console.log('lat1 or lon1 is undefined')
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return 0;
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}else{
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const earthRadius = 6371; // Radius of the earth in km
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const dLat = this.deg2rad(lat2 - lat1); // deg2rad below
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const dLon = this.deg2rad(lon2 - lon1);
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const a =
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Math.sin(dLat / 2) * Math.sin(dLat / 2) +
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Math.cos(this.deg2rad(lat1)) * Math.cos(this.deg2rad(lat2)) *
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Math.sin(dLon / 2) * Math.sin(dLon / 2)
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;
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const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
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// Distance in km
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return earthRadius * c;
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}
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}*/
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getDistanceBetweenCoordinates(lat1: number | undefined, lon1: number | undefined, lat2: number, lon2: number) {
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if (lat1 === undefined || lon1 === undefined) {
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console.log('lat1 or lon1 is undefined')
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return 0;
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}
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const earthRadius = 6371; // Raggio della Terra in km
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const dLat = this.deg2rad(lat2 - lat1);
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const dLon = this.deg2rad(lon2 - lon1);
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const a = Math.sin(dLat / 2) * Math.sin(dLat / 2) +
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Math.cos(this.deg2rad(lat1)) * Math.cos(this.deg2rad(lat2)) *
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Math.sin(dLon / 2) * Math.sin(dLon / 2);
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const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
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const distance = earthRadius * c; // Distanza in km
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return distance;
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}
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deg2rad(deg: number) {
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return deg * (Math.PI / 180)
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}
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async getLocation() {
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console.log('get location');
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return new Promise((resolve, reject) => {
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if (navigator.geolocation) {
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navigator.geolocation.getCurrentPosition((position) => {
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const lat = position.coords.latitude;
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const lon = position.coords.longitude;
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this.cord = { lat, lon };
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console.log(this.cord);
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resolve(this.cord);
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}, (error) => {
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reject(error);
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});
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} else {
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reject('Geolocation is not supported by this browser.');
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}
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});
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}
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}
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