Can someone please tell me what's wrong with this piece of code?
Cesium.Math.setRandomNumberSeed(1234);
var viewer = new Cesium.Viewer('cesiumContainer');
var entities = viewer.entities;
var boxes = entities.add(new Cesium.Entity());
var polylines = new Cesium.PolylineCollection();
//Create the entities and assign each entity's parent to the group to which it belongs.
for (var i = 0; i < 5; ++i) {
var height = 100000.0 + (200000.0 * i);
entities.add({
parent : boxes,
position : Cesium.Cartesian3.fromDegrees(-106.0, 45.0, height),
box : {
dimensions : new Cesium.Cartesian3(90000.0, 90000.0, 90000.0),
material : Cesium.Color.fromRandom({alpha : 1.0})
}
});
entities.add({
parent : polylines,
position : Cesium.Cartesian3.fromDegrees(-86.0, 55.0, height),
polyline : {
width : new Cesium.ConstantProperty(2),
material : Cesium.Color.fromRandom({alpha : 1.0}),
followSurface : new Cesium.ConstantProperty(false)
}
});
}
viewer.zoomTo(viewer.entities);
It displays boxes at the given coordinates but when I am trying to draw a poly-line it gives this error: Uncaught TypeError: Cannot read property 'push' of undefined (on line 300 ofhttps://cesiumjs.org/Cesium/Source/DataSources/Entity.js)
I want something like this https://cesiumjs.org/Cesium/Apps/Sandcastle/index.html?src=Custom%20DataSource.html&label=Showcases
Thanks in advance.
var polylines = entities.add(new Cesium.Entity());
Cesium.Math.setRandomNumberSeed(1234);
var viewer = new Cesium.Viewer('cesiumContainer'); var entities = viewer.entities; var boxes = entities.add(new Cesium.Entity());
var polylines = entities.add(new Cesium.Entity());
//Create the entities and assign each entity's parent to the group to which it belongs.
var prevHeight = 0.0;
for (var i = 0; i < 5; ++i) { var height = 100000.0 + (200000.0 * i); entities.add({ parent : boxes, position : Cesium.Cartesian3.fromDegrees(-106.0, 45.0, height), box : { dimensions : new Cesium.Cartesian3(90000.0, 90000.0, 90000.0), material : Cesium.Color.fromRandom({alpha : 1.0}) } }); entities.add({ parent : polylines, position : Cesium.Cartesian3.fromDegrees(-86.0, 55.0, height), polyline : {
positions: [ Cesium.Cartesian3.fromDegrees(-86.0, 55.0, prevHeight), Cesium.Cartesian3.fromDegrees(-86.0, 55.0, height) ],
width : new Cesium.ConstantProperty(2), material : Cesium.Color.fromRandom({alpha : 1.0}), followSurface : new Cesium.ConstantProperty(false) } });
prevHeight = height; } viewer.zoomTo(viewer.entities);