Streaming massive 2D vectors layers

CesiumJS
1

Hi! We are trying to find a workflow for streaming massive (gigabytes) 2D vectors layers with good performance on to the Cesium globe. If this has been covered elsewhere please send me a link.

We have been told to use 3D Tiles, but is there a specific workflow to convert our 2D GIS layers so that the tile rendering works.

Any help, much appreciated, as always :slight_smile:

2

Hi there,

What format are your 2D Vector layers in? We’ve added experimental support in Cesium for Vector Tiles.

Thanks,

Gabby

3

Hey Gabby

These can be any any format required. Currently they are in geojson

Any help, much appreciated.

4

Hi Tim,

You can load and style GeoJSON files into Cesium with the GeoJsonDataSource class.

var viewer = new Cesium.Viewer('cesiumContainer');
viewer.dataSources.add(Cesium.GeoJsonDataSource.load('../../SampleData/ne_10m_us_states.topojson', {
  stroke: Cesium.Color.HOTPINK,
  fill: Cesium.Color.PINK,
  strokeWidth: 3,
  markerSymbol: '?'
}));

``

Thanks,

Gabby

5

Hi Gabby

We can stream geojson, but these are huge and can sometimes crash the application. Can they be tiled similar to 3D Tiles?

6

Our tiling pipeline is currently in progress, but you can contact Tim Rivenbark, Cesium’s Business Development Director, at tim@agi.com to see about tiling your data.

7

Thanks Gabby, we know Tim so will drop him and Todd a line :slight_smile: