How am i add the new Cesium.Cartesian3.fromDegreesArrayHeights or Coordinate in polyline Entity?

CesiumJS
1

At first time when i create entity of ployline :

var viewer = new Cesium.Viewer('cesiumContainer');
var entities = viewer.entities;

var polylines = entities.add({
        name : 'Line',
        position : Cesium.Cartesian3.fromDegrees(-86.0, 55.0, 500000),
        polyline : {
            positions: Cesium.Cartesian3.fromDegreesArrayHeights([-86.0, 55.0, 500000]),
            width : 1,
            material : Cesium.Color.YELLOW
        }
    });

then i need to add another polyline positions when i get, so how i try :

var positions1 = new Cesium.Cartesian3.fromDegreesArrayHeights([-125, 43, 500000]);
polylines.polyline.positions = positions1;

but its not working for me can you tell me what wrong am doing. please give me solution with sample code its help.

or any other way to do.

2

Hi Sanjeev,

Please take a look at the Sandcastle example of Polylines: http://cesiumjs.org/Cesium/Apps/Sandcastle/index.html?src=Polyline.html. It might help you out.

3

Hello Abhishek Potnis,

i already seen the sandcastle example and its related but its not helpful to me.
Actually i need a runtime updation of ployline Coordinate. When i get the data from my device than i want to put that coords to polyline entity.

if any this type of condition sample code was it, than post it.

Thx for reply.

4

Hi,

Take a look at PathGraphics; there you can use a Cesium.SampledPositionProperty() that allows you to add positions (with a timestamp).

Success, Willem