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<div class="section">
<div id="mapview" style="width: 100%; height: 40em;"></div>
<script type="text/javascript">
var map,
mapboxReadyAttached;
if (typeof $ === 'undefined') {
document.addEventListener('DOMContentLoaded', loadMapbox);
}
if (typeof mapboxReadyAttached === 'undefined') {
mapboxReadyAttached = true;
document.addEventListener('pageReady', loadMapbox);
}
function loadMapbox() {
if ($('#mapview').length == 0) return; // map is inactive
if (typeof mapboxgl === 'undefined') {
console.log('loading mapbox files');
$('<link>').appendTo('head')
.attr({type: 'text/css', rel: 'stylesheet'})
.attr('href', 'https://api.mapbox.com/mapbox-gl-js/v0.22.1/mapbox-gl.css');
$.getScript('https://api.mapbox.com/mapbox-gl-js/v0.23.0/mapbox-gl.js', initMapbox);
} else {
console.log('mapbox files already present');
initMapbox();
}
}
function initMapbox() {
console.log('creating new map instance');
var lon = parseFloat({{ .Get "lon" }}),
lat = parseFloat({{ .Get "lat" }}),
zoom= parseFloat({{ .Get "zoom" }});
if (typeof map !== 'undefined') {
console.log('killed old map');
map.remove();
}
mapboxgl.accessToken = 'pk.eyJ1IjoiY29kZS13dnMiLCJhIjoiY2lzNHM4bWUwMDAwdTJ0cDBjYms5em9hYSJ9.VLxxJ6aTbWUbQchg58tgkA';
map = new mapboxgl.Map({
pitch: 60,
bearing: 45,
container: 'mapview',
style: 'mapbox://styles/mapbox/basic-v9',
center: [lon, lat],
zoom: zoom
});
map.on('load', showMapbox);
}
function showMapbox() {
var lon = parseFloat({{ .Get "lon" }}),
lat = parseFloat({{ .Get "lat" }}),
zoom= parseFloat({{ .Get "zoom" }});
console.log('updating map data', [lon, lat, zoom]);
map.setCenter([lon, lat]);
map.setZoom(zoom);
var markers = {
"type": "FeatureCollection",
"features": [{
"type": "Feature",
"properties": {
"icon": "fast-food"
},
"geometry": {
"type": "Point",
"coordinates": [lon, lat]
}
}]
};
if (!map.getSource('markers')) {
map.addSource('markers', {
'type': 'geojson',
'data': markers
});
map.addLayer({
"id": "markers",
"type": "symbol",
"source": "markers",
"layout": {
"icon-image": "{icon}-15"
}
});
}
}
</script>
</div>
|
