loading dataSource from json too slow / see screenshot

[jepetko]

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

[Matthew Amato]

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.

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[jepetko]

hi Matthew,

thank you for this feedback! I'm looking forward to see it in action! ;-)

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

[carri...@gmail.com]

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.

[Gabby Getz]

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

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