[RESOLVED] I found that pre-generalized feature only works with WMS service.
See discussion : http://osgeo-org.1560.x6.nabble.com/GeoServer-pregeneralized-features-extension-with-OpenLayers-td4981400.html And indeed, this can be seen in Geoserver logs : Geoserver uses pre-generalization only when clients send WMS requests. Ben De : DEGRÈVE Benoît [mailto:[email protected]] Envoyé : jeudi 25 juillet 2019 10:02 À : [email protected] Objet : [Geoserver-users] Pre-generalized features Hi all, I've pre-generalized a layer. It works as expected but it doesn't seem much faster. It's hard to tell the difference. Layer type : multipolygon # features : 86790 These polygons are spread on 2 different countries and the way of collecting data is different for each country resulting in diffrent polygons structure Half of the polygons are 200 meters x 200 meters squares (lower part of the map) and these seem to be a reference to take into account before any pre-generalization process. I'm a bit confused, in the example I found, they choose 5, 10, 20, and 50 meters for the pre-generalization process. I've customised it and I've added 3 thresholds => 5, 10, 20, 50, 100, 150, 190 I stopped at 190, a bit before 200, because there's no way to generalize a 200m x 200m square, is it ? Now, maybe 86790 features is not enough to see a dramatic change in loading time. So, my final question is : did I do that properly ? Is it worth pre-generalizing ? I'm not so sure... Ben
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