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map.html
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<!-- url: https://kauevestena.github.io/opensidewalkmap_beta/data/tiles/sidewalks.pmtiles -->
<html>
<head>
<title>OSWM Node Webmap</title>
<meta charset="utf-8" />
<!-- <link rel="stylesheet" href="https://unpkg.com/[email protected]/dist/maplibre-gl.css">
<script src="https://unpkg.com/[email protected]/dist/maplibre-gl.js"></script> -->
<!-- maplibre-gl latest tested working version: 4.3.2 -->
<link rel='stylesheet' href='https://unpkg.com/maplibre-gl@latest/dist/maplibre-gl.css' />
<script src='https://unpkg.com/maplibre-gl@latest/dist/maplibre-gl.js'></script>
<!-- pmtiles -->
<script src="https://unpkg.com/pmtiles@latest/dist/pmtiles.js"></script>
<!-- legend module -->
<link href='https://www.unpkg.com/@watergis/maplibre-gl-legend@latest/dist/maplibre-gl-legend.css'
rel='stylesheet' />
<script src="https://www.unpkg.com/@watergis/maplibre-gl-legend@latest/dist/maplibre-gl-legend.umd.js"></script>
<style>
body {
margin: 0;
background-color: black;
}
#map {
position: absolute;
top: 0;
bottom: 0;
width: 100%;
}
#style-changer {
position: absolute;
top: 10px;
right: 60px;
/* Adjusted to avoid collision with the navigation control */
background: #fff;
border: 1px solid rgba(0, 0, 0, 0.15);
border-radius: 4px;
box-shadow: 0 1px 2px rgba(0, 0, 0, 0.10);
z-index: 1;
}
#style-selector {
border: none;
padding: 10px;
border-radius: 4px;
background-color: #fff;
font-size: 14px;
cursor: pointer;
width: 100%;
}
#style-selector:focus {
outline: none;
border: none;
}
.popup-content {
display: table;
width: 100%;
table-layout: auto;
/* Ensures table layout is fixed */
word-wrap: break-word;
/* Allows long words to be broken and wrapped to the next line */
}
.popup-content div {
display: table-row;
}
.popup-content div span {
display: table-cell;
padding: 2px 5px;
}
.popup-content div span:first-child {
text-align: right;
width: 45%;
white-space: nowrap;
/* Ensures no wrapping */
}
.popup-content div span:nth-child(2) {
text-align: center;
width: 10%;
}
.popup-content div span:last-child {
text-align: left;
width: 45%;
}
.popup-heading {
font-weight: bold;
text-align: center;
/* Center-aligns the heading */
margin-bottom: 5px;
}
.popup-links {
text-align: center;
/* Center-aligns the links */
margin-top: 10px;
}
.popup-links a {
display: block;
/* Makes the links block elements so they stack vertically */
margin: 5px 0;
/* Adds some margin between the links */
color: #007bff;
/* Sets link color */
text-decoration: none;
/* Removes underline from links */
}
.popup-links a:hover {
text-decoration: underline;
/* Adds underline on hover */
}
.logo_img{
position: fixed;
left: 2px;
top: 2px;
z-index: 999999;
}
.responsive {
max-width: 40%;
height: auto;
}
#overlay-image {
display: none;
z-index: 0;
}
#overlay-image img {
position: absolute;
top: 50%;
left: 1%;
height: 60%;
width: auto;
transform: translate(0%, -50%);
}
</style>
<link rel="icon" type="image/x-icon"
href="https://kauevestena.github.io/opensidewalkmap/assets/favicon_homepage.png">
</head>
<body>
<div id="style-changer">
<select id="style-selector"></select>
</div>
<div id="map">
<a href="https://kauevestena.github.io/opensidewalkmap_beta/" id="node_link">
<img
src="https://kauevestena.github.io/opensidewalkmap_beta/oswm_codebase/assets/page_logo.png"
alt="OSWM Page Logo"
title="Click for more OSWM Node's Resources!!"
class="logo_img responsive"
></img>
</a>
</div>
<div id="overlay-image" style="display: none;">
<img src="https://kauevestena.github.io/opensidewalkmap_beta/oswm_codebase/assets/map_symbols/footway_categories.png" alt="Map Symbols" id="map-symbols-img">
</div>
<script type="text/javascript">
// Global Control Variables
var hoveredStateId_OSWMProject = null;
// var map_bounds = null;
// var map_center = null;
// var map_zoom = null;
// fetching:
// fetch('./default_params.json')
// .then((response) => response.json())
// .then((json) => {
// map_bounds = json['bounds'];
// map_center = json['center'];
// map_zoom = json['zoom'];
// });
// add the PMTiles plugin to the maplibregl global.
let protocol = new pmtiles.Protocol();
maplibregl.addProtocol("pmtiles", protocol.tile);
// const p = new pmtiles.PMTiles(PMTILES_URL_SIDEWALKS);
// // this is so we share one instance across the JS code and the map renderer
// protocol.add(p);
// // we first fetch the header so we can get the center lon, lat of the map.
// p.getHeader().then(h => {
fetch('./webmap_params.json')
.then((response) => response.json())
.then((params) => {
const map = new maplibregl.Map(
{
container: 'map',
zoom: params['zoom'],
center: params['center'],
style:
params['styles']['footway_categories'],
// {
// version:8,
// sources: params['sources'],
// layers: params['layers'],
// // terrain: params['terrain'],
// // maxPitch: 85
// }
}
);
const homePosition = {
center: [144, -37],
};
function addHomeButton(map) {
class HomeButton {
onAdd(map) {
const div = document.createElement("div");
div.className = "mapboxgl-ctrl mapboxgl-ctrl-group";
div.innerHTML = `<button>
<svg focusable="false" viewBox="0 0 24 24" aria-hidden="true" style="font-size: 20px;"><title>Reset map</title><path d="M10 20v-6h4v6h5v-8h3L12 3 2 12h3v8z"></path></svg>
</button>`;
div.addEventListener("contextmenu", (e) => e.preventDefault());
// div.addEventListener("click", () => map.flyTo(homePosition));
return div;
}
}
// const homeButton =
map.addControl(new HomeButton(), "top-left");
}
// add controls
map.addControl(new maplibregl.NavigationControl());
map.addControl(new maplibregl.FullscreenControl());
map.addControl(new maplibregl.ScaleControl());
map.fitBounds(params['bounds']);
// map.addControl(new LogoControl({compact: false}));
// add hash
// map.addControl(new maplibregl.Hash());
// add a global attribution:
// map.addControl(new maplibregl.AttributionControl({
// 'customAttribution': 'data: <a href="https://openstreetmap.org">OpenStreetMap Contributors</a> + <a href="https://kauevestena.github.io/opensidewalkmap/">OSWM project by Kauê Vestena</a>'
// }));
// add geolocation
map.on('load', function () {
map.addControl(new maplibregl.GeolocateControl({
positionOptions: {
enableHighAccuracy: true
},
trackUserLocation: true
}));
// Function to set up popup with rich description for a specific layer
function setupPopup(layerName) {
map.on('click', layerName, (e) => {
const coordinates = e.lngLat.toArray();
const properties = e.features[0].properties;
// Construct the rich description with a heading
/*
The removed ones:
<div><span>Indoor</span><span>:</span><span>${properties.indoor || '?'}</span></div>
*/
const description = `
<div class="popup-content">
<div class="popup-heading"><span>Feat. ${properties.id}</span><span>:</span><span>${layerName}</span></div>
<div><span>Surface</span><span>:</span><span>${properties.surface || '?'}</span></div>
<div><span>Smoothness</span><span>:</span><span>${properties.smoothness || '?'}</span></div>
<div><span>Width</span><span>:</span><span>${properties.width || '?'}</span></div>
<div><span>Incline</span><span>:</span><span>${properties.incline || '?'}</span></div>
<div><span>Incline (across)</span><span>:</span><span>${properties['incline:across'] || '?'}</span></div>
<div><span>Tactile Paving</span><span>:</span><span>${properties.tactile_paving || '?'}</span></div>
<div><span>Wheelchair</span><span>:</span><span>${properties.wheelchair || '?'}</span></div>
<div><span>Lit</span><span>:</span><span>${properties.lit || '?'}</span></div>
<div><span>Last Updated</span><span>:</span><span>${properties.last_update || '?'}</span></div>
</div>
<div class="popup-links">
<a href="https://www.openstreetmap.org/${properties.element}/${properties.id}" target="_blank">
See on OpenStreetMap
</a>
<a href="https://www.mapillary.com/app/?lat=${coordinates[1]}&lng=${coordinates[0]}&z=19" target="_blank">
Surroundings on Mapillary
</a>
<a href="https://geohack.toolforge.org/geohack.php?params=${coordinates[1]}_N_${coordinates[0]}_E" target="_blank">
Location on GeoHack
</a>
</div>
`;
// Ensure that if the map is zoomed out such that multiple copies of the feature are visible, the popup appears
// over the copy being pointed to.
while (Math.abs(e.lngLat.lng - coordinates[0]) > 180) {
coordinates[0] += e.lngLat.lng > coordinates[0] ? 360 : -360;
}
// Create and display the popup
new maplibregl.Popup()
.setLngLat(coordinates)
.setHTML(description)
.addTo(map);
});
}
function setupCursorChange(layerName) {
map.on('mouseenter', layerName, () => {
map.getCanvas().style.cursor = 'pointer';
});
map.on('mouseleave', layerName, () => {
map.getCanvas().style.cursor = '';
});
}
// Function used to update element's attributes:
function changeElementAttribute(elementId, attributeName, attributeValue) {
// Get the element using its ID
const element = document.getElementById(elementId);
if (element) {
// Set the specified attribute with the provided value
element[attributeName] = attributeValue;
} else {
console.error(`Element with ID "${elementId}" not found.`);
}
}
changeElementAttribute("node_link","href",params['node_url']);
// Function to set up hover effect for a specific layer
function setupHoverEffect(layerName, sourceName, sourceLayerName) {
let hoveredStateId = null;
map.on('mousemove', layerName, (e) => {
if (e.features.length > 0) {
if (hoveredStateId) {
map.setFeatureState(
{
source: sourceName,
sourceLayer: sourceLayerName,
id: hoveredStateId
},
{ hover: false }
);
}
hoveredStateId = e.features[0].id;
map.setFeatureState(
{
source: sourceName,
sourceLayer: sourceLayerName,
id: hoveredStateId
},
{ hover: true }
);
}
});
map.on('mouseleave', layerName, () => {
if (hoveredStateId) {
map.setFeatureState(
{
source: sourceName,
sourceLayer: sourceLayerName,
id: hoveredStateId
},
{ hover: false }
);
}
hoveredStateId = null;
});
}
// Set up cursor change effects for multiple layers
params['data_layers'].forEach(layer => {
setupCursorChange(layer);
setupHoverEffect(layer, 'oswm_pmtiles_' + layer, layer);
setupPopup(layer);
});
const legend_control_options = {
showDefault: false,
showCheckbox: true,
onlyRendered: false,
reverseOrder: true,
title: 'Layer Legend'
};
map.addControl(new MaplibreLegendControl.MaplibreLegendControl({}, legend_control_options), "top-right");
// MAP SYMBOLS HANDLING: start
const switcherButton = document.querySelector('.maplibregl-legend-switcher');
// console.log(switcherButton);
const legendList = document.querySelector('.maplibregl-legend-list');
// console.log(legendList);
const overlayImage = document.getElementById('overlay-image');
// console.log(overlayImage);
const mapref = document.getElementById('map');
switcherButton.addEventListener('click', function() {
overlayImage.style.display = 'block';
});
overlayImage.addEventListener('click', function() {
overlayImage.style.display = 'none';
});
legendList.addEventListener('click', function() {
overlayImage.style.display = 'none';
});
mapref.addEventListener("dblclick", function() {
overlayImage.style.display = 'none';
});
// TODO: ability to drag the image around the map
// TODO: add key shortcuts
// MAP SYMBOLS HANDLING: end
});
// // Terrain, someday! (TODO)
// // map.addControl(
// // new maplibregl.TerrainControl({
// // source: 'terrainSource',
// // exaggeration: 1
// // })
// // );
// Dynamically populate the dropdown options
const styleSelector = document.getElementById('style-selector');
Object.keys(params['styles']).forEach(styleKey => {
const option = document.createElement('option');
option.value = styleKey;
// option.textContent = params['styles'][styleKey]['name'];
option.label = `Style: ${params['styles'][styleKey]['name']}`; // Different label
styleSelector.appendChild(option);
});
// Listen for style changes
styleSelector.addEventListener('change', function (e) {
const style = e.target.value;
map.setStyle(params['styles'][style]);
// modify image overlay
const overlayImage2 = document.getElementById('map-symbols-img');
const legend_url = `https://kauevestena.github.io/opensidewalkmap_beta/oswm_codebase/assets/map_symbols/${style}.png`;
overlayImage2.src = `${legend_url}?cb=${Date.now()}`; // to prevent caching
});
// END of the big "then" statement:
});
</script>
</body>
</html>