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Performance issue in loading some thousands MapQuickItem items on the QML map
morteza ali ahmadi last edited by
I have a QML map which I want to load some thousands
MapQuickItemitems on it. The similar problem is questioned before in this link, but no definite answer has been given. I want to know the solution.
I think that the loading performance will be improved, if I can limit the loaded
MapQuickItemitems based on the screen coordinates and zoom level using grouping items, as the answer of Schluchti in this link but Schluchti does not describe the details of his method. Is there a simple example or a tutorial that used this method?
Pablo J. Rogina last edited by
I want to load some thousands MapQuickItem items
Are you sure that you want that? Do you really need that number of items at once?
As a user I guess I won't feel comfortable seeing a thousand markers on any given map altogether
morteza ali ahmadi last edited by morteza ali ahmadi
@Pablo-J-Rogina these items do not place in a little region and usually spread in a huge region. Also, I mentioned the worst situation with some thousands items. I think there must be a solution to this problem in Qt QML.
Pablo J. Rogina last edited by Pablo J. Rogina
usually spread in a huge region
Beg my pardon but even if you place a thousand markers on the whole world in a let's say 10.1" tablet screen, I won't be happy looking at such (mis)information
I think there must be a solution to this problem
Perhaps you may want to think about approaching a different way.
I've seen some maps providing "summary" markers (sometimes with a number attached to it) so if I click the mark the map zooms and lower-level "summary" markers appear, and so on until you reach the lowest level with individual markers.