//内置颜色
material: Cesium.Color.RED.withAlpha(0.5),
//css颜色
//cssColor:值可以是 #ffccdd, rgb(255,255,255),rgb(255,0,255,0.5)
material: Cesium.Color.fromCssColorString('#12ee95').withAlpha(0.2),
material: Cesium.Color.fromCssColorString('rgba(18, 238, 149, 0.2)'),
//在地图上的导航路线颜色
color: new Cesium.ColorGeometryInstanceAttribute(1.0, 1.0, 1.0, 1.0)