2023-08-24 18:26:16 +02:00
|
|
|
<!DOCTYPE html>
|
|
|
|
|
<html>
|
|
|
|
|
<head>
|
2023-08-31 18:57:27 +02:00
|
|
|
<title>UPlanet Map</title>
|
|
|
|
|
<link rel="stylesheet" href="leaflet.css" />
|
2023-09-01 03:50:04 +02:00
|
|
|
<style>
|
|
|
|
|
.map-container {
|
|
|
|
|
position: fixed;
|
|
|
|
|
top: 0;
|
|
|
|
|
left: 0;
|
|
|
|
|
width: 100%;
|
|
|
|
|
height: 100%;
|
|
|
|
|
}
|
|
|
|
|
</style>
|
2023-08-24 18:26:16 +02:00
|
|
|
</head>
|
|
|
|
|
<body>
|
2023-09-01 03:50:04 +02:00
|
|
|
<div id="map" class="map-container"></div>
|
2023-08-24 18:26:16 +02:00
|
|
|
<br>
|
|
|
|
|
|
2023-08-31 18:57:27 +02:00
|
|
|
<script src="leaflet.js"></script>
|
2023-08-24 18:26:16 +02:00
|
|
|
<script>
|
|
|
|
|
// const desiredImageWidthInKm = 11; // Now Is calculated from northEastLon - southWestLon
|
|
|
|
|
const tileSizeInPixels = 256;
|
|
|
|
|
|
|
|
|
|
function calculateZoomLevel(desiredImageWidthInKm, latitude) {
|
|
|
|
|
const earthEquatorialCircumference = 40075016.686; // Earth's equatorial circumference in meters
|
|
|
|
|
// Calculate the distance covered by one degree of longitude at the given latitude
|
|
|
|
|
const metersPerLongitudeDegree = earthEquatorialCircumference * Math.cos((Math.PI / 180) * latitude) / 360;
|
|
|
|
|
const metersPerPixel = metersPerLongitudeDegree * 360 / (tileSizeInPixels * Math.pow(2, 20));
|
|
|
|
|
// Calculate the number of pixels needed to achieve the desired width
|
|
|
|
|
const numberOfPixelsHorizontally = (desiredImageWidthInKm * 1000) / metersPerPixel;
|
|
|
|
|
// Calculate the appropriate zoom level
|
|
|
|
|
const zoomLevel = Math.log2(tileSizeInPixels * Math.pow(2, 20) / numberOfPixelsHorizontally);
|
|
|
|
|
return zoomLevel;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Function to extract URL parameters
|
|
|
|
|
function getUrlParameter(name) {
|
|
|
|
|
name = name.replace(/[\[]/, '\\[').replace(/[\]]/, '\\]');
|
|
|
|
|
const regex = new RegExp('[\\?&]' + name + '=([^&#]*)');
|
|
|
|
|
const results = regex.exec(location.search);
|
|
|
|
|
return results === null ? '' : decodeURIComponent(results[1].replace(/\+/g, ' '));
|
|
|
|
|
}
|
|
|
|
|
|
2023-08-31 18:57:27 +02:00
|
|
|
const defaultSouthWestLat = 44.000;
|
2023-08-24 18:26:16 +02:00
|
|
|
const defaultSouthWestLon = -1.000;
|
2023-08-31 18:57:27 +02:00
|
|
|
const defaultOffsetDegrees = 10.000; // 10° offset
|
2023-08-24 18:26:16 +02:00
|
|
|
|
|
|
|
|
const southWestLat = parseFloat(getUrlParameter('southWestLat')) || defaultSouthWestLat;
|
2023-08-31 18:57:27 +02:00
|
|
|
console.log('Lat:', southWestLat);
|
2023-08-24 18:26:16 +02:00
|
|
|
const southWestLon = parseFloat(getUrlParameter('southWestLon')) || defaultSouthWestLon;
|
2023-08-31 18:57:27 +02:00
|
|
|
console.log('Lon:', southWestLon);
|
2023-08-24 18:26:16 +02:00
|
|
|
|
2023-08-31 18:57:27 +02:00
|
|
|
const deg = parseFloat(getUrlParameter('deg')) || defaultOffsetDegrees;
|
|
|
|
|
console.log('Offset:', deg);
|
2023-08-24 18:26:16 +02:00
|
|
|
|
2023-08-31 18:57:27 +02:00
|
|
|
// Calculate northEastLat and northEastLon with deg° offset only if parameters are empty
|
|
|
|
|
const northEastLatParam = getUrlParameter('northEastLat');
|
|
|
|
|
const northEastLonParam = getUrlParameter('northEastLon');
|
|
|
|
|
|
|
|
|
|
const northEastLat = northEastLatParam ? parseFloat(northEastLatParam) : southWestLat + deg;
|
|
|
|
|
const northEastLon = northEastLonParam ? parseFloat(northEastLonParam) : southWestLon + deg;
|
|
|
|
|
|
|
|
|
|
// Calculate the longitudinal distance in degrees
|
|
|
|
|
const lonDistanceInDegrees = Math.abs(northEastLon - southWestLon);
|
|
|
|
|
console.log('lonDistanceInDegrees:', lonDistanceInDegrees);
|
|
|
|
|
|
|
|
|
|
// Calculate the desired image width in kilometers
|
|
|
|
|
const earthEquatorialCircumference = 40075016.686; // Earth's equatorial circumference in meters
|
|
|
|
|
const metersPerLongitudeDegree = Math.abs(earthEquatorialCircumference * Math.cos((Math.PI / 180) * southWestLat) / 360);
|
|
|
|
|
const desiredImageWidthInMeters = lonDistanceInDegrees * metersPerLongitudeDegree;
|
|
|
|
|
const desiredImageWidthInKm = desiredImageWidthInMeters / 1000;
|
|
|
|
|
console.log('desiredImageWidthInKm:', desiredImageWidthInKm);
|
2023-08-24 18:26:16 +02:00
|
|
|
|
|
|
|
|
const centerLat = (southWestLat + northEastLat) / 2;
|
|
|
|
|
const centerLon = (southWestLon + northEastLon) / 2;
|
|
|
|
|
|
|
|
|
|
// Provide the latitude for adjustment
|
|
|
|
|
const latitude = centerLat;
|
|
|
|
|
const zoomLevel = calculateZoomLevel(desiredImageWidthInKm, latitude);
|
|
|
|
|
console.log('Recommended zoom level:', zoomLevel);
|
|
|
|
|
|
2023-09-01 13:16:38 +02:00
|
|
|
const map = L.map('map', {
|
|
|
|
|
zoomControl: false // Disable the default zoom control
|
|
|
|
|
}).setView([centerLat, centerLon], zoomLevel);
|
2023-08-24 18:26:16 +02:00
|
|
|
|
|
|
|
|
// Use the Mapbox Satellite tile layer
|
|
|
|
|
//~ L.tileLayer('https://api.mapbox.com/styles/v1/mapbox/satellite-v9/tiles/{z}/{x}/{y}?access_token=YOUR_MAPBOX_ACCESS_TOKEN', {
|
|
|
|
|
//~ attribution: '© Mapbox',
|
|
|
|
|
//~ tileSize: 512,
|
|
|
|
|
//~ zoomOffset: -1,
|
|
|
|
|
//~ accessToken: 'YOUR_MAPBOX_ACCESS_TOKEN'
|
|
|
|
|
//~ }).addTo(map);
|
|
|
|
|
|
|
|
|
|
//~ // Use the OpenAerialMap (OAM) tile layer for satellite view
|
|
|
|
|
//~ L.tileLayer('https://tiles.openaerialmap.org/5d6d1e370f437a00106e06ef/0/{z}/{x}/{y}.jpg', {
|
|
|
|
|
//~ attribution: '© OpenAerialMap',
|
|
|
|
|
//~ maxZoom: 18
|
|
|
|
|
//~ }).addTo(map);
|
|
|
|
|
|
2023-09-01 03:50:04 +02:00
|
|
|
const tileLayer = L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
|
2023-09-01 13:16:38 +02:00
|
|
|
attribution: `U Planet | Astroport | ${southWestLat} : ${southWestLon}`
|
2023-08-24 18:26:16 +02:00
|
|
|
}).addTo(map);
|
|
|
|
|
|
|
|
|
|
</script>
|
|
|
|
|
</body>
|
|
|
|
|
</html>
|
