检查map是否已准备好queryRenderedFeatures

时间:2016-05-23 21:00:48

标签: mapbox-gl-js

map.on('mousemove', function (e) {
    map.getCanvas().style.cursor = ''
    // Need to check if markers layer is ready to query else 
    // I get Type error the first few seconds when you move the mouse.
    var features = map.queryRenderedFeatures(e.point, {layers: ['markers']})
    if (!features.length) return;
    map.getCanvas().style.cursor = 'pointer'
});

我不清楚如何检查地图是否已完成渲染。上面的代码在渲染地图时会出错。

enter image description here

1 个答案:

答案 0 :(得分:1)

从另一个stackoverflow mapbox问题找到答案。

map.on('mousemove', function (e) {
    if (!map.loaded()) return;
    map.getCanvas().style.cursor = ''
    var features = map.queryRenderedFeatures(e.point, {layers: ['markers']})
    if (!features.length) return;
    map.getCanvas().style.cursor = 'pointer'
});

不确定,但我认为mapbox应该在queryRenderedFeatures中检查它。

https://github.com/mapbox/mapbox-gl-js/issues/2614

编辑:Mapbox更改了他们的代码不再是一个问题:)