Cesium怎么让网格有经纬度显示

你可以重写cesium里面的requestImage方法。 var tile_lay = new Cesium.TileCoordinatesImageryProvider({

tilingScheme: new Cesium.GeographicTilingScheme()

}); tile_lay.requestImage = function(x,y,level){

var canvas = document.createElement('canvas');
canvas.width = 256;
canvas.height = 256;
var context = canvas.getContext('2d');
context.strokeStyle = "rgba(192,192,192,0.7)";
context.lineWidth = 1;
context.strokeRect(0, 0, 256, 256);
var label = zxy2TileKey(level,x,y); //label里面放需要显示的文字
context.font = 'bold 6px Arial';
context.fillStyle = "rgba(255, 255, 255, 0.6)";
context.textAlign = 'center';
context.fillText(label, 124, 124);
return canvas;

}; viewer.scene.imageryLayers.addImageryProvider(grid_lay);