[OpenLayers-Users] Alternatives to get rid of WFS layers

[Roel De Nijs]

Sorry for the very late reply, but I was on holiday and temporarily moved to another project. But now I am back again!

I created a GetFeature control (with custom protocol) which works similar with your selectfeature: a list of features (at the mouse position) is displayed in a popup. When the user clicks on an item in the list, some data is shown (no wfs data, just a REST call).

One of the scenario's I am struggling with is selecting multiple features. In our current application we have a SelectFeature control using the WFS layers. So a user could select some features (using mouse clicks and/or box selection). Then these selected features could be used to execute another function in the application. But now these WFS layers don't exist anymore, so wondering what's the best approach to simulate this behavior.

-----Oorspronkelijk bericht-----
Van: openlayers-users-bounces at lists.osgeo.org [mailto:openlayers-users-bounces at lists.osgeo.org] Namens Phil Scadden
Verzonden: woensdag 5 november 2014 21:30
Aan: openlayers-users at lists.osgeo.org
Onderwerp: Re: [OpenLayers-Users] Alternatives to get rid of WFS layers

I use GetFeature Control for hover functionality, but sometimes WMSGetFeatureInfo with hover with an Html template backend is good enough. (When your application only needs to display the attributes, not do any other processing of them). I use selectfeature for "info" and "polygon" tool which usually have the assumption that multiple features will be returned - display list of features in a popup and the user doing further processing from there.

Depending on database size, you could try some pre-load tricks. onmove you issue WFS GetFeature for the area covered by the map but ONLY for attributes, not shape (that should reduce your download size). Then you need only featureid returned from hover and look up the other attributes in the preloaded table.

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