OSM2IPFS/earth/map_render.html

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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
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<link rel="icon" type="image/x-icon" href="./favicon.ico">
<title>UPlanet Grid Navigator - Layers Zoom In -</title>
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<link rel="stylesheet" href="leaflet.css" />
<style>
.clickable-area {
fill-opacity: 0.2; /* Adjust the opacity as needed */
fill: #0074d9; /* Adjust the color as needed */
stroke: #001f3f;
}
#coordinates-display {
position: absolute;
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bottom: 20px; /* Adjust the bottom position as needed */
left: 10px; /* Adjust the left position as needed */
background-color: white;
padding: 5px;
border: 1px solid black;
z-index: 1000;
}
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#map-container {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
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.button {
background-color: #3498db;
color: #fff;
padding: 10px 20px;
border: none;
cursor: pointer;
}
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.grid-number {
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position: absolute;
font-size: 16px;
font-weight: bold;
color: #fff;
z-index: 1300;
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}
#upper-layer-button {
position: absolute;
top: 10px;
right: 10px;
z-index: 1002;
background-color: #3498db;
color: #fff;
padding: 10px 20px;
border: none;
cursor: pointer;
}
</style>
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</head>
<body>
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<div id="map-container" style="position: relative;">
<div id="coordinates-display"></div> <!-- Coordinates display element -->
<div id="map" style="width: 100%; height: 100vh;"></div>
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</div>
<button id="upper-layer-button">⬆️</button>
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<script src="leaflet.js"></script>
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<script>
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// 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, ' '));
}
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// 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;
}
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///////////////////////////////////////////////////////////////////////////////////
// Extract the hostname (e.g., "https://ipfs.domain.tld" or "http://ipfs.localhost:8080")
var currentURL = new URL(window.location.href);
var hostname = currentURL.hostname;
var port = currentURL.port;
var protocol = currentURL.protocol.split(":")[0];
// Check and replace the port if it's 8080
if (port === "8080") {
port = "1234";
}
var zHost = hostname.replace("ipfs", "astroport");
// Create the "station" variable with the specified format
var station = protocol + "://" + zHost + (port ? (":" + port) : "");
console.log(station)
//////////////////////////////////////////////////////////////// fetchAstroport
async function fetchAstroport(myURL, retryCount = 3) {
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try {
let one = await fetch(myURL);
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var doc = await one.text();
var regex = /url='([^']+)/i;
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var redirectURL = doc.match(regex)[1];
console.log(redirectURL);
return new Promise(async (resolve, reject) => {
let retry = 0;
const fetchData = async () => {
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try {
let two = await fetch(redirectURL);
const data = await two.json();
console.log(data);
resolve(data);
} catch (error) {
if (retry < retryCount) {
console.log(`Retry ${retry + 1} after 3000ms...`);
retry++;
setTimeout(fetchData, 3000);
} else {
console.log('Max retries reached. Fetch error:', error);
reject(error);
}
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}
};
setTimeout(fetchData, 3000);
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});
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} catch (err) {
console.log('Fetch error:', err);
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return Promise.reject(err);
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}
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}
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///////////////////////////////////////////////////////////////////////////////////
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const defaultIPNS = '';
const sectorIPNS = getUrlParameter('ipns') || defaultIPNS;
console.log('sectorIPNS: /ipns/', sectorIPNS);
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if (sectorIPNS !== '') {
const buttonContainer = document.createElement('div');
buttonContainer.id = 'button-container'
buttonContainer.style.position = 'absolute';
buttonContainer.style.bottom = '10px';
buttonContainer.style.left = '10px';
buttonContainer.style.width = '200px';
buttonContainer.style.height = '150px';
buttonContainer.style.zIndex = '1001';
buttonContainer.style.display = 'flex';
buttonContainer.style.flexDirection = 'column';
buttonContainer.style.alignItems = 'center';
buttonContainer.style.justifyContent = 'center';
const button = document.createElement('button');
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button.innerText = 'INLINE LINK';
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button.className = 'button';
// Add an event listener to the button
button.addEventListener('click', function() {
window.open( '/ipns/'+ sectorIPNS, "_blank");
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});
// Append the button to the button container
buttonContainer.appendChild(button);
document.body.appendChild(buttonContainer);
}
const defaultSouthWestLat = 0.00;
const defaultSouthWestLon = 0.00;
const defaultOffsetDegrees = 10.00; // 10° offset
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const southWestLat = parseFloat(getUrlParameter('southWestLat')) || defaultSouthWestLat;
console.log('Lat:', southWestLat);
const southWestLon = parseFloat(getUrlParameter('southWestLon')) || defaultSouthWestLon;
console.log('Lon:', southWestLon);
const deg = parseFloat(getUrlParameter('deg')) || defaultOffsetDegrees;
console.log('Offset:', deg);
// 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);
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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);
const map = L.map('map').setView([centerLat, centerLon], zoomLevel);
L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
attribution: 'U Planet'
}).addTo(map);
const gridSize = 10; // Number of rows and columns in the grid
const NSize = deg / 10; // Size of each grid cell
document.getElementById('upper-layer-button').addEventListener('click', function() {
if (deg >= 10) {
window.location.href = 'welcome.html';
} else {
const newDeg = deg * 10;
const decalage = 2.5 * deg;
const adjustedSouthWestLat = (parseFloat(southWestLat) - decalage).toFixed(2);
const adjustedSouthWestLon = (parseFloat(southWestLon) - decalage).toFixed(2);
const url = `map_render.html?southWestLat=${adjustedSouthWestLat}&southWestLon=${adjustedSouthWestLon}&deg=${newDeg}`;
window.location.href = url;
}
});
// Create a HTML element for displaying coordinates
const coordinatesDisplay = document.getElementById('coordinates-display');
// Check if deg is less than or equal to 0.01
if (deg <= 0.01) {
const container = document.createElement('div');
container.style.position = 'fixed';
container.style.top = '0';
container.style.left = '0';
container.style.width = '100vw';
container.style.height = '100vh';
container.style.backgroundColor = 'rgba(255, 255, 255, 0.4)';
container.style.border = 'none';
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container.style.zIndex = '999';
container.style.display = 'flex';
container.style.flexDirection = 'column';
container.style.alignItems = 'center';
container.style.justifyContent = 'center';
const button = document.createElement('button');
button.textContent = '>>> (✜‿‿✜) <<<';
button.style.width = '100%';
button.style.height = '100px'; // Customize the button height
button.style.backgroundColor = '#0074d9';
button.style.border = 'none';
button.style.fontFamily = 'Arial, sans-serif'; // Customize the font family
button.style.fontSize = '24px'; // Customize the font size
button.style.color = '#fff'; // Customize the font color
button.addEventListener('click', () => {
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const url = `${station}/?uplanet=@&zlat=${southWestLat}&zlon=${southWestLon}`;
window.location.href = url;
});
container.appendChild(button);
document.body.appendChild(container);
} else {
// Add a mousemove event listener to the map
map.on('mousemove', (event) => {
const latLng = event.latlng;
const lat = latLng.lat.toFixed(6);
const lng = latLng.lng.toFixed(6);
coordinatesDisplay.textContent = `Latitude: ${lat}, Longitude: ${lng}`;
});
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///// UPPER THAN 0.01
}
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// Add a click event listener to the map container
document.getElementById('map-container').addEventListener('click', (event) => {
const isInsideRectangle = event.target.classList.contains('clickable-area');
if (!isInsideRectangle) {
history.back(); // Trigger browser's back functionality
}
});
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/////////////////
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async function loadGridNumbers(myURL) {
try {
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const data = await fetchAstroport(myURL);
return data.gridNumbers || [];
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} catch (error) {
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console.error('Error loading grid numbers:', error);
return [];
}
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}
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// Function to overlay grid numbers on the map
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function overlayGridNumbers(rectangle, number) {
const latLng = rectangle.getBounds().getCenter();
const containerPoint = map.latLngToContainerPoint(latLng);
const numberElement = document.createElement('div');
numberElement.className = 'grid-number';
numberElement.textContent = number;
numberElement.style.position = 'absolute';
numberElement.style.fontSize = '16px';
numberElement.style.fontWeight = 'bold';
numberElement.style.color = 'red';
numberElement.style.top = `${containerPoint.y}px`;
numberElement.style.left = `${containerPoint.x}px`;
document.getElementById('map-container').appendChild(numberElement);
}
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const zquery = 'zone='+NSize+'&ulat='+southWestLat+'&ulon='+southWestLon; // Replace with your actual query parameters
const zoneURL = station+'/?' + zquery;
console.log('ZONE URL:', zoneURL);
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// Create a clickable rectangle for each grid cell
const rectangles = [];
for (let latIndex = 0; latIndex < gridSize; latIndex++) {
for (let lonIndex = 0; lonIndex < gridSize; lonIndex++) {
const lat = southWestLat + latIndex * NSize;
const lon = southWestLon + lonIndex * NSize;
//~ const lat = southWestLat + (southWestLat < 0 ? -latIndex * NSize : latIndex * NSize);
//~ const lon = southWestLon + (southWestLon < 0 ? -lonIndex * NSize : lonIndex * NSize);
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// Create a clickable rectangle
const rectangle = L.rectangle(
[[lat, lon], [lat + NSize, lon + NSize]],
{ color: 'transparent', weight: 1, className: 'clickable-area' } // Add CSS class
);
// Add a click event to the rectangle
rectangle.on('click', () => {
// Calculate new northEastLat and northEastLon based on the clicked grid cell
const newNorthEastLat = lat.toFixed(2);
const newNorthEastLon = lon.toFixed(2);
// Update URL parameters with the new values
const url = `map_render.html?southWestLat=${newNorthEastLat}&southWestLon=${newNorthEastLon}&deg=${NSize}`;
window.location.href = url;
});
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// Add the rectangle to the map and to the array
rectangle.addTo(map);
rectangles.push(rectangle);
}
}
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// Load grid numbers and overlay them on the map
loadGridNumbers(zoneURL).then(gridNumbers => {
gridNumbers.forEach(({ lat, lon, number, ipns }) => {
// Calculate the center of the rectangle based on lat + NSize and lon + NSize
const latCenter = lat + (lat < 0 ? -NSize / 2 : NSize / 2);
const lonCenter = lon + (lon < 0 ? -NSize / 2 : NSize / 2);
const latLng = L.latLng(latCenter, lonCenter);
// Find the corresponding rectangle
const matchingRectangle = rectangles.find(rectangle =>
rectangle.getBounds().contains(latLng)
);
if (matchingRectangle) {
overlayGridNumbers(matchingRectangle, number);
}
if (ipns !== '') {
const buttonContainer = document.createElement('div');
buttonContainer.id = 'button-container'
buttonContainer.style.position = 'absolute';
buttonContainer.style.bottom = '10px';
buttonContainer.style.left = '10px';
buttonContainer.style.width = '200px';
buttonContainer.style.height = '150px';
buttonContainer.style.zIndex = '1001';
buttonContainer.style.display = 'flex';
buttonContainer.style.flexDirection = 'column';
buttonContainer.style.alignItems = 'center';
buttonContainer.style.justifyContent = 'center';
const button = document.createElement('button');
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if (NSize === 0.001) { button.innerText = 'EXPLORE UMAP'; }
if (NSize === 0.01) { button.innerText = 'EXPLORE SECTOR'; }
if (NSize === 0.1) { button.innerText = 'EXPLORE REGION'; }
if (NSize == "") { button.innerText = 'EXPLORE ZONE'; }
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button.className = 'button';
// Add an event listener to the button
button.addEventListener('click', function() {
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window.open( ipns , "_blank");
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});
// Append the button to the button container
buttonContainer.appendChild(button);
document.body.appendChild(buttonContainer);
}
});
});
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</script>
</body>
</html>