now there is a point in a city, and when you move the mouse up, there will be a tips, of how many tons there are in that city. If they want to change it to move the mouse over that city, it will appear.
tooltip: {
show: true,
trigger: "item",//
formatter: function (params) {
// ...tipshtml
}
} how to change the code? Tips? appears when you move the mouse over the city.
your chart should be based on the surface map. Item refers to the surface. If your map has only points, then the tip can only be on the points.
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