Currently, I'm using this project https://github.com/OpenGeoscience/vtkMap based on the VTK framework to have a slippy map in which I can add markers and group them in clusters. I have already contributed to that project but there's still bugs in it and it does not fit my requirements (on the visual aspect).
So, I want to use Qt maps instead of vtkMap, but I didn't find a way/an example to create marker clusters. Apparently, it's a complex task to achieve (as I already fixed some bugs in vtkMap clustering system) and I want to know how people deal with that problem with QtLocation/QML.
I found QGeoView a C++/Qt map (no QML BS). I started coding a class "placemarker" that handles a set of POIs and that support clustering : https://github.com/embeddedmz/QGeoView/blob/draft/demo/samples/placemarkSetLayer.h
Otherwise, someone can look at the clustering logic of my class and use it a QML map.