我正在使用Mapbox GL JS v0.14.2,我已经在文档中搜索了很久,但是很少有关于这个问题的清晰解释。
如果您使用标准JS API,则非常清楚如何使用他们提供的示例来“适应地图到标记”(https://www.mapbox.com/mapbox.js/example/v1.0.0/fit-map-to-markers/); 但是,当使用GL API时,设置方式则有所不同。GL API具有getBounds()
(https://www.mapbox.com/mapbox-gl-js/api/#Map.getBounds),但由于您没有像标准JS API那样的命名图层,因此我很难弄清楚如何使用getBounds()
。
我找到了这个(Mapbox GL JS API Set Bounds),但肯定不是正确答案?
这是我的设置大部分内容;不包括JSON设置和其他选项。
mapboxgl.accessToken = '<myaccesstoken>';
var markers = <?php echo $programme_json; ?>;
var map = new mapboxgl.Map({
container: 'map',
style: 'mapbox://styles/richgc/cikyo5bse00nqb0lxebkfn2bm',
center: [-1.470085, 53.381129],
zoom: 15
});
map.on('style.load', function() {
map.addSource('markers', {
'type': 'geojson',
'data': markers
});
map.addLayer({
"id": "markers",
"interactive": true,
"type": "symbol",
"source": "markers",
"layout": {
"icon-image": "venue-map-icon-blue",
'icon-size': 0.5,
"icon-allow-overlap": true
}
});
map.scrollZoom.disable();
});
我已经尝试了以下方法:
alert(map.getBounds()); // LngLatBounds(LngLat(-1.4855345239256508, 53.37642500812015), LngLat(-1.4546354760740883, 53.38583247227842))
var bounds = [[-1.4855345239256508, 53.37642500812015],[-1.4546354760740883, 53.38583247227842]]
map.fitBounds(bounds);
我知道如何使用fitBounds,但不确定如何获取它们。map.getBounds()
似乎只返回设置的中心位置的经度/纬度。
标记JSON:
var markers = {"type":"FeatureCollection","features":[{"type":"Feature","properties":{"title":"Site Gallery","url":"\/Freelance\/art-sheffield-2016\/programme\/site-gallery\/","summary":"Duis arcu tortor, suscipit eget, imperdiet nec, imperdiet iaculis, ipsum. Donec id justo. Aenean tellus metus, bibendum sed, posuere ac, mattis non, nunc. Suspendisse feugiat. Etiam rhoncus.","image":"\/Freelance\/art-sheffield-2016\/site\/assets\/files\/1032\/site_gallery.jpg","marker-symbol":"venue-map-icon-blue","colour":"blue"},"geometry":{"type":"Point","coordinates":["-1.466439","53.376842"]}},{"type":"Feature","properties":{"title":"Moore Street Substation","url":"\/Freelance\/art-sheffield-2016\/programme\/moore-street-substation\/","summary":"","image":null,"marker-symbol":"venue-map-icon-green","colour":"green"},"geometry":{"type":"Point","coordinates":["-1.477881","53.374798"]}},{"type":"Feature","properties":{"title":"S1 Artspace","url":"\/Freelance\/art-sheffield-2016\/programme\/s1-artspace\/","summary":"","image":null,"marker-symbol":"venue-map-icon-red","colour":"red"},"geometry":{"type":"Point","coordinates":["-1.459620","53.380562"]}}]};