topic Re: Local Projections in Qt in Qt Maps SDK Questions

Local Projections in Qt

Marco_AlejandroBonilla — Thu, 26 May 2016 13:58:28 GMT

Hi all,

I'm working with Dynamic Map and Tiled Map samples from AppStudio in Qt creator.

I was trying to use local services with custom projections (WGS84) but when I run the sample, the window appears blank.

We have tried this in Javascript API and it works fine.

Any suggestions??

cc jimy cuesta

Re: Local Projections in Qt

LucasDanzinger — Sat, 11 Dec 2021 15:52:51 GMT

If you add some code like the following, do you see an error emitted?

 ArcGISDynamicMapServiceLayer {    
    url: "http://sampleserver6.arcgisonline.com/arcgis/rest/services/Water_Network/MapServer"


    onStatusChanged: {
        if (status === Enums.LayerStatusErrored) {
            console.log("error:", error);
        }
    }
}

Re: Local Projections in Qt

Marco_AlejandroBonilla — Thu, 26 May 2016 19:59:33 GMT

No, I don't get any error.

It displays fine with arcgis services.

Re: Local Projections in Qt

LucasDanzinger — Thu, 26 May 2016 20:01:58 GMT

Can you use that code but swap out the service URL with your device URL, and see if you get any errors?

Re: Local Projections in Qt

Marco_AlejandroBonilla — Thu, 26 May 2016 21:08:57 GMT

This error is shown, what should I do??

"qml: error: Layer does not have a valid spatial reference."

Re: Local Projections in Qt

LucasDanzinger — Thu, 26 May 2016 23:02:51 GMT

that is what I figured would happen. It is an issue reading the service as it uses wkt instead of wkid. It is a bug in the API. We are working on a fix and it should be available in one of the upcoming AppStudio releases

Re: Local Projections in Qt

Marco_AlejandroBonilla — Mon, 30 May 2016 13:15:11 GMT

Ok, so we'll be waiting for it!

Thank you very much for your response Lucas,

Regards

Marco