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dozykeys/geolocator.html

Last active November 8, 2021 14:36
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geolocator.html
<!DOCTYPE html>
<html>
<head>
<style>
#map {
height: 600px;
width: 100%;
}
</style>
</head>
<body>
<h3>Select Your Destination</h3>
<form style="margin-bottom:20px;margin-right:auto;margin-left:auto;">
<input id="geocomplete" type="text" placeholder="Type in an address" style="height:30px;" size="90" />
<select id="travelmode" style="height:35px;">
<option value="DRIVING">Driving</option>
<option value="WALKING">Walking</option>
<option value="BICYCLING">Bicycling</option>
<option value="TRANSIT">Transit</option>
</select>
<input id="find" type="button" value="find" />
</form>
<div id="msg"></div>
<div id="map"></div>
<script src="https://maps.googleapis.com/maps/api/js?libraries=places&key=xxxxxxxxxxxxxxxxxxxx">
</script>
<script>
useLoad();
// Initialize and add the map
var map, mk1, mk2, mk3;
const options = {
zoom: 12,
scaleControl: true,
mapTypeId: "hybrid"
};
map = new google.maps.Map(document.getElementById('map'), options);
var directionsService = new google.maps.DirectionsService();
var directionsRenderer = new google.maps.DirectionsRenderer();
var lines = [];
function animateMapZoomTo(map, targetZoom) {
var currentZoom = arguments[2] || map.getZoom();
if (currentZoom != targetZoom) {
google.maps.event.addListenerOnce(map, 'zoom_changed', function(event) {
animateMapZoomTo(map, targetZoom, currentZoom + (targetZoom > currentZoom ? 1 : -1));
});
setTimeout(function() {
map.setZoom(currentZoom)
}, 80);
}
}
function getLocation() {
return new Promise((resolve, reject) => {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
resolve(position.coords);
let {
latitude,
longitude
} = position.coords;
}, function(error) {
reject(error.message);
}, {
maximumAge: 60000,
timeout: 1000,
enableHighAccuracy: true
});
} else {
reject("Geolocation not supported");
}
});
}
async function useLoad() {
try {
var result = await getLocation();
mk3 = new google.maps.Marker({
position: {
lat: result.latitude,
lng: result.longitude
},
icon: {
url: "http://maps.google.com/mapfiles/ms/icons/blue-dot.png"
},
map,
});
} catch (e) {
console.log(e)
}
initMap(result);
}
function initMap(res, destination, travelMode) {
if (!destination) {
var destination = {
latitude: 8.9810661,
longitude: 7.4604852
};
travelMode = "DRIVING";
}
let {
latitude,
longitude
} = res;
let latitude2 = destination.latitude;
let longitude2 = destination.longitude;
let center = {
lat: latitude,
lng: longitude
};
map.setCenter(center);
const myLocation = {
lat: latitude,
lng: longitude
};
const destination_ = {
lat: latitude2,
lng: longitude2
};
mk1 = new google.maps.Marker({
position: myLocation,
map,
title: "Current Location"
});
mk2 = new google.maps.Marker({
position: destination_,
map
});
mk1.setMap(null);
mk2.setMap(null);
mk3.setPosition(new google.maps.LatLng(latitude,longitude));
let line = new google.maps.Polyline({
path: [myLocation, destination_],
map
});
for (i = 0; i < lines.length; i++) {
lines[i].setMap(null);
}
lines.push(line);
directionsRenderer.setMap(map);
const route = {
origin: myLocation,
destination: destination_,
travelMode
}
directionsService.route(route,
function(response, status) {
if (status !== 'OK') {
window.alert('Directions request failed due to ' + status);
return;
} else {
directionsRenderer.setDirections(response);
let directionsData = response.routes[0].legs[0];
console.log(response);
if (!directionsData) {
window.alert('Directions request failed');
return;
} else {
document.getElementById('msg').innerHTML += travelMode + " distance is " + directionsData.distance.text + " (" + directionsData.duration.text + ").";
}
}
});
function haversine_distance(mk1, mk2) {
let R = 6371.0710; // to use kilometres
//var R = 3958.8; // Radius of the Earth in miles
let rlat1 = mk1.position.lat() * (Math.PI / 180); // Convert degrees to radians
let rlat2 = mk2.position.lat() * (Math.PI / 180); // Convert degrees to radians
let difflat = rlat2 - rlat1; // Radian difference (latitudes)
let difflon = (mk2.position.lng() - mk1.position.lng()) * (Math.PI / 180); // Radian difference (longitudes)
let d = 2 * R * Math.asin(Math.sqrt(Math.sin(difflat / 2) * Math.sin(difflat / 2) + Math.cos(rlat1) * Math.cos(rlat2) * Math.sin(difflon / 2) * Math.sin(difflon / 2)));
return d;
}
// Calculate and display the distance between markers
let distance = haversine_distance(mk1, mk2);
document.getElementById('msg').innerHTML = "Distance between markers: " + distance.toFixed(2) + " kilometres.";
animateMapZoomTo(map, 14);
}
</script>
<script src="jqmain.js"></script>
<script src="jquery.geocomplete.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/axios/0.24.0/axios.min.js" integrity="sha512-u9akINsQsAkG9xjc1cnGF4zw5TFDwkxuc9vUp5dltDWYCSmyd0meygbvgXrlc/z7/o4a19Fb5V0OUE58J7dcyw==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<script>
$(function() {
$("#geocomplete").geocomplete();
$("#find").click(function() {
let travelMode = $("#travelmode").val();
let furi = "https://maps.googleapis.com/maps/api/geocode/json?key=xxxxxxxxxxxxxxxxxxxx"+"&address=" + encodeURI($("#geocomplete").val());
axios(furi)
.then(async function(data) {
try {
var result2 = await getLocation();
} catch (e) {
console.log(e);
}
if (data && data.data.status == "OK") {
let {
lat,
lng
} = data.data.results[0].geometry.location;
let res = {
latitude: lat,
longitude: lng
};
initMap(result2, res, travelMode);
}
})
.catch(function(error) {
console.log("error", error);
});
});
$("#geocomplete").trigger("geocode");
google.maps.event.addListener(map, 'click', function(me) {
var result = [me.latLng.lat(), me.latLng.lng()];
transition(result);
});
var position = [8.9810661, 7.4604852];
var numDeltas = 100;
var delay = 10; //milliseconds
var i = 0;
var deltaLat;
var deltaLng;
function transition(result) {
i = 0;
deltaLat = (result[0] - position[0]) / numDeltas;
deltaLng = (result[1] - position[1]) / numDeltas;
moveMarker();
}
function moveMarker() {
position[0] += deltaLat;
position[1] += deltaLng;
var latlng = new google.maps.LatLng(position[0], position[1]);
mk3.setPosition(latlng);
if (i != numDeltas) {
i++;
setTimeout(moveMarker, delay);
}
}
});
setInterval(async function() {
try {
let result3 = await getLocation();
mk3.setPosition(new google.maps.LatLng(result3.latitude,result3.longitude));
} catch (e) {
console.log(e);
}
}, 1000);
</script>
</body>
</html>
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