OpenLayers上的显示功能仅在某个缩放级别下才能使用矢量图
答
看看这个documentation
您也可以使用minResolution和maxResolution,但似乎使用缩放比较好。
minScale - float -- the minimum scale value at which the layer should display
maxScale - float -- the maximum scale value at which the layer should display
maxResolution - float -- the maximum resolution value at which the layer should display
minResolution - float -- the minimum resolution value at which the layer should display