loading dataSource from json too slow / see screenshot

CesiumJS
1

hi,

I created a prototype of Cesium + AngularJS and experienced some issues when it comes to handing vector data. For instance the rendering of this WFS service (http://data.wien.gv.at/daten/geoserver/ows?service=WFS&request=GetFeature&version=1.1.0&typeName=ogdwien:BAUBLOCKOGD&srsName=EPSG:4326&outputFormat=json) takes several seconds. Afterwards, any kind of interaction with the map is very slow.

Here is the screenshot and the source code (there is lot of metaprogramming magic; I just extracted the relevant code):

        var dataSource = new Cesium.GeoJsonDataSource();

        dataSource.loadUrl(url);

        var dataSources = viewer.dataSources;

        dataSources.add(dataSource);

Could you help me to speed up the rendering and further working with the application?

Every help appreciated.

jepetko

cesium_datasource_slow.jpg
cesium_datasource_slow.jpg1327×739 805 KB

2

The performance problems are a known issue. I’m actively working on a major architectural change that will make this smooth and fast. I’ll update this thread as soon as I have something for you to try out.

3

hi Matthew,

thank you for this feedback! I’m looking forward to see it in action! :wink:

Since I evaluate Cesium now I will post even more questions :-/. Nevertheless I think of Cesium to be a very cool API.

Good luck

jepetko

4

Is there any update on this. I'm loading a KML file and it is so slow to load and render. We are looking at other options. Using Cesium via browser, not desktop version.

5

Hi,

We’re tracking our KML graphics improvement ideas in this GitHub issue.

Can you let us know the version of cesium you are using, and provide a code example if possible?

Thanks,

Gabby