【问题原因】没有正确设置CRS。
var map = L.map('map', {
center: [0, 0],
maxZoom: 18,
zoom: 0,
crs: L.CRS.EPSG4326
});
【解决办法】设置CRS示例代码如下：
var resolutions = [1.4062500000020313, 0.7041106029170705, 0.35205530145853525,
0.17602765074115156, 0.08801382537057578, 0.04400691267340393,
0.02200345634858593, 0.011001728174292964, 0.005500864087146482, 0.0027504320316892785];
var map = L.map('map', {
preferCanvas: true,
crs: new L.supermap.Proj.CRS("EPSG:4326",
{
origin: [-180, 90],
resolutions: resolutions,
bounds: L.bounds([-180.0 - 90.0], [180.0, 90.0])
}),
center: [20, 100],
maxZoom: 18,
zoom: 3
});
