How to drape a geojson datasource in STK World Terrain?

CesiumJS
1

Can you suggest me how to drape a geojson datasource over the terrain in the Scene 3d using STK World Terrain map?

2

This is my code:

//Creo il viewer con i widget di cesium

var viewer = new Cesium.Viewer(‘map2’,{

sceneMode : Cesium.SceneMode.SCENE3D

});

// Create scene without anisotropic texture filtering

var scene = viewer.scene;

var positions = ; // xy position array

var cesiumTerrainProvider = new Cesium.CesiumTerrainProvider({

url : ‘//assets.agi.com/stk-terrain/world’,

//requestVertexNormals : true,

//requestWaterMask : true

});

viewer.terrainProvider = cesiumTerrainProvider;

//test drap rectangle

var rectangleInstance = new Cesium.GeometryInstance({

geometry : new Cesium.RectangleGeometry({

rectangle : Cesium.Rectangle.fromDegrees(-140.0, 30.0, -100.0, 40.0)

}),

id : ‘rectangle’,

attributes : {

color : new Cesium.ColorGeometryInstanceAttribute(0.0, 1.0, 1.0, 0.5)

}

});

scene.primitives.add(new Cesium.GroundPrimitive({

geometryInstance : rectangleInstance

}));

//can’t drap geojson polygon the feature slide

viewer.dataSources.add(Cesium.GeoJsonDataSource.load(’./data/limiti_regione.json’, {

stroke: Cesium.Color.HOTPINK,

fill: Cesium.Color.PINK.withAlpha(0.2),

strokeWidth: 10,

dashArray : “10, 8”,

perPositionHeight: true

}

));

3

Hello,

We don’t support this feature yet, but it’s something we plan on adding. Tom did some work towards implementing it in this branch: https://github.com/AnalyticalGraphicsInc/cesium/pull/3406

There’s still a bit more that needs to be done before it is ready.

Best,

Hannah