问题是当我在叠加层上签出并再次签入后收到此错误:
Uncaught TypeError:无法读取未定义抛出的属性“ x”
dist / leaflet.markercluster.js:1:25696 TypeError:无法读取属性
L.DistanceGrid._sqDist中未定义的'x'(DistanceGrid.js:114)
在e._addLayer的L.DistanceGrid.getNearObject(DistanceGrid.js:94)
(MarkerClusterGroup.js:974)在评估(MarkerClusterGroup.js:249)
在e.addLayers处(e.addLayers(MarkerClusterGroup.js:283)
(layersupport.js:99)在e.onAdd(layersupport.js:517)在
位于e.whenReady(leaflet.js:5)的e._layerAdd(leaflet.js:5)
e.addLayer(leaflet.js:5)
I saw that this function from DistanceGrid(is in leaflet library) which is called when i check in on the overlay
_sqDist: function (p, p2) {
var dx = p2.x - p.x,
dy = p2.y - p.y;
return dx * dx + dy * dy;
}
当我签入是p时不确定。我已经为这个错误苦苦挣扎了很长时间。也许你有一些建议
已为组定义了标记,并且标记已正确显示,只有签入才能签出。一旦我检查了群集,群集就会消失,并且一旦签入,就会收到之前提到的错误,而不是在地图上重新显示群集
这是控制器代码:
JS controller:
var map = L.map('map', {zoomControl: true, tap: false, preferCanvas:true})
var group1,group2,group3,group4;
var myRenderer = L.canvas({ padding: 0.5 });
var markers = L.markerClusterGroup.layerSupport( {
chunkedLoading: true,
renderer: myRenderer,
iconCreateFunction: function (cluster) {
var childCount = cluster.getChildCount();
var c = ' marker-cluster-';
if (childCount < 10) {
c += 'small';
}
else if (childCount < 100) {
c += 'medium';
}
else {
c += 'large';
}
return new L.DivIcon({ html: '<div><span>' + childCount + '</span>
</div>',
className: 'marker-cluster' + c, iconSize:
new L.Point(40, 40) });
}
});
group1 = L.layerGroup(),
group2 = L.layerGroup(),
group3 = L.layerGroup(),
group4 = L.layerGroup(),
markers.checkIn([group1, group2, group3, group4]);
var overlayMaps = {
"g1": group1,
"g2": group2,
"g3":group3,
"g4":group4
};
var control = L.control.layers(null, overlayMaps, { collapsed: true });
control.addTo(map);
group1.addTo(map); // Adding to map or to AutoMCG are now equivalent.
group2.addTo(map);
group3.addTo(map);
group4.addTo(map);
markers.addTo(map);
PS:我不知道如何提供可行的版本,因为这是Salesforce应用程序
最佳答案
Leaflet.markercluster.layerSupport插件可能无法很好地处理chunkedLoading
选项。
我不确定为什么您需要定期“签出”和“签到”?您是要使用“图层控件”来删除/添加叠加层吗?
否则,如果“仅”需要一种解决方案以将Leaflet.markercluster与Layers Control一起使用,则可以尝试使用更简单的插件Leaflet.FeatureGroup.SubGroup,尽管如果chunkedLoading
是问题的原因,则可能也是与该插件相同。