WMS GetFeautureInfo - ArcGIS Maps SDK for Qt C++

[Tsub4sa80]

Hi to all, I need to send a WMS GetFeatureInfo command to get information from a WMS server.

Which is the method that I need to call, using ArcGIS MAP QT SDK C++, to pack and send my request ?

I need also to add some custom parameters to request. 

Thanks, in advance.

[MatveiStefarov · Accepted solution]

To call GetFeatureInfo command, you would use identifyLayerAsync(...) operation on the MapView.  The steps are:

1. Create a WMSLayer with a URL.
2. Set the custom parameters. These will be sent with every GetMap and GetFeatureInfo request.
3. Add layer to your Map, load it, and display it in a MapView
4. Call identifyLayersAsync on the MapView -- this is often connected to mouseClicked signals to get the clicked position.  This will issue a GetFeatureInfo request for the layer.  Currently, the only supported info format is "text/html".
5. The completed future will have a IdentifyLayerResult containing a WMSFeature.

Use the "HTML" attribute on the WMSFeature to retrieve this information as returned by the service.  The Geometry property is not implemented yet, and will always return null.

[Tsub4sa80]

Thank you for your reply @MatveiStefarov . I haven't tested your solution yet . I will try and provide a feedback asap.

[Tsub4sa80]

@MatveiStefarov  I have implemented what you suggested, and as a response from the server, I got the following message: 'The request is for a service type not offered by the server' caused by a ServiceException.

I suppose that the problem is on the configuration of the custom parameters. I'm right?

If I need to send a request like this:

http://localhost:8080/?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetFeatureInfo&LAYERS=ENC&QUERY_LAYERS=ENC&...

which kind of custom parameters I need to set?

Thank you in advance.