how to load wfs features?

[GISlxz]

I am trying to load a WFS layer published by GeoServer using CLASS WFSFeatureSource, but the features are not being read correctly. I have checked the source code in WFS.cpp to verify the URL construction and ensure my parameters are correct, but the features are still not loading properly.

Additionally, I tried using .earth to load the WFS layer, and while no loading errors were displayed, the features still do not show up correctly.

std::string source = "http://localhost:8084/geoserver/wfs?";
osg::ref_ptr<WFSFeatureSource> wfsSource = new WFSFeatureSource;
wfsSource->setURL(osgEarth::URI(source));
wfsSource->setTypeName("countries");
wfsSource->setOutputFormat("GML2");
//wfsSource->setOutputFormat("json");
auto count = wfsSource->getFeatureCount();
std::cout << count; // result:-1

osg::ref_ptr<FeatureModelLayer> wfsLayer = new FeatureModelLayer();
wfsLayer->setName("wfsLayer");
wfsLayer->setFeatureSource(wfsSource);
map->addLayer(wfsLayer);

thanks a lot

[gwaldron]

I believe the legal options for setOutputFormat are "geojson" and "gml".

Also, WFS does not implement getFeatureCount() so it will always return -1. Sometimes there is no way to query that information without actually fetching the data. Most network-based feature sources are like this.

I will be honest with you; you may be the first person to use the WFS layer in a long time. There's a good chance it is very out of date and needs attention. Let us know if you have any further luck.