Clustering QtLocation markers technique
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Hi,
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 this bugreports.qt.io/browse/QTBUG-52301?attachmentOrder=desc but the guy removed his clustering algorithm from the source code that he attached (in void ClusterableModel::doRecalculation()).
So, I want to know if there's already an exisiting solution to achieve marker clustering. Otherwise, I will create a solution based on the link above and the technique used in vtkMap and share it on my github account !
Thanks.
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Hi,
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 this bugreports.qt.io/browse/QTBUG-52301?attachmentOrder=desc but the guy removed his clustering algorithm from the source code that he attached (in void ClusterableModel::doRecalculation()).
So, I want to know if there's already an exisiting solution to achieve marker clustering. Otherwise, I will create a solution based on the link above and the technique used in vtkMap and share it on my github account !
Thanks.
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Hi Tomaslov,
No, I have not advanced in that subject because I changed my job (essentially C# dev.), but yeah I'm still interested if someone could provide us a solution, on Android this feature already exists.
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@embeddedmz Did you get any further on this? I'm also looking for a way to cluster features using C++ model for the items and QML Map for the view.
@tomaslov I found QGeoView, an interesting and small/simple slippy map for Qt (No qml BS).
I have forked the project and made a class (in a branch called draft) that manages a set of POIs and support clustering : https://github.com/embeddedmz/QGeoView/tree/draft it's in the "demo" directory.
In 2022, I will continue working on that project.