dynamic loading of vector data

[FizrukBet]

in ol3 i'm using dinamic loading of vector data from geoserver:

var vectorLoader = function(extent, resolution, projection) {
var url = 'http://localhost:8088/geoserver/wfs?service=WFS&' +
'version=1.1.0&request=GetFeature&typename=three:build_3_3857&' +
'outputFormat=text/javascript&format_options=callback:loadFeatures' +
'&srsname=EPSG:3857&bbox=' + extent.join(',') + ',EPSG:3857';
$.ajax({
url: url,
dataType : 'jsonp'
});
};

var loadFeatures = function(response) {
var features = vectorSource.readFeatures(response);
vectorSource.addFeatures(features);
};

var vectorSource = new ol.source.ServerVector({
format: new ol.format.GeoJSON(),
loader: vectorLoader,
strategy: ol.loadingstrategy.bbox
});

var vector = new ol.layer.Vector({
source: vectorSource,
style: style
});

Сan i synchronize this data with 3d view? I want to load vector data when i changed a 3d view.

Maybe I have to use other strategy?

[gberaudo]

Hi @FizrukBet, I see no reason why it would not work. As soon as a new feature is added, an event is emitted from ol3 and we create the 3D counterpart immediately.

[FizrukBet]

when I move a 2D view, all ok. But I want to load data when I move a 3D view.
2D view: http://gyazo.com/df3cc114cadd8741974753f94fbb7d19
3D view: http://gyazo.com/69ebc2882dbdf4c10c7ab5ce0ca64315

I don't know how to initiate an event to load data from server by extent, when i move 3d view.

[gberaudo]

I understand now. The more you are tilted, the larger the viewed area. You may try modifying the loading strategy to take into account the tilt and the distance of the camera. Do you have zoom levels of your data? Even in 2D, how do you handle displaying a large area?

[FizrukBet]

"The more you are tilted, the larger the viewed area" - it's a second problem.

now, when I change 3d view vector data aren't loaded at all
http://gyazo.com/2bbd65f8e4adfd41fa06938319d8df0a
http://gyazo.com/baf120f6af2c26a7385a5ccf8a8247b9
and i don't know how i can run to load data from server

[gberaudo]

In stacked views, when the 3D globe is displayed, the 2D map is not rendered. You can check using side-by-side views that it solves you first issue.

[FizrukBet]

if I use side-by-side all ok
http://gyazo.com/dad28271ba5299e76cf93c0ee00aa221 (gif)
if I use one div and set 3d view vector data aren't loaded
http://gyazo.com/84da8c4dd775755751b50d394544f1ab (gif)

[FizrukBet]

i need to trigger event of load data when 2d view is disabled.

[jmgomezpoveda]

This could be related to the second point at #346.

My workaround as of now is, after the load of the vector layer (in my case from a kml file), to switch to 2d view and back to 3d (#346 (comment)). On the brief time that the map is in 2d, the vector layer is loaded, and is available once I am back in 3d. The only drawback is that there is a flicker due to this switch.