adding distance display conditions with geojsondatasource

Hi all,

Is it possible to define a distanceDisplayCondition to a polygon that was added via GeoJsonDataSource? Here’s my sample code, which is currently not working.

viewer.dataSources.add(

Cesium.GeoJsonDataSource.load(“be-current.geojson”, {

stroke: Cesium.Color.BLUE.withAlpha(0.5),

fill: Cesium.Color.BLUE.withAlpha(0.5),

strokeWidth: 4,

clampToGround: true,

distanceDisplayCondition : new Cesium.DistanceDisplayCondition(6.2e4, 1e5),

scaleByDistance: { nearFarScalar: [1.0, 2.0, 10000.0, 0.0] }

})

);

``