QML: Custom draggable point delegate for ChartView series
QML, QML C++, Qt Charts, Qt Location, Qt5
Is it possible to use custom delegates for draggable points (i.e. Items, icons, Rectangles, etc) in Qt Charts or other 3rd party libraries like it is easily possible in Qt Location for MapItemView, MapQuickItem and their delegate property? Or it is possible to use some combinations of PathView and ChartView for such purpose. Had not found any documentation or samples about? Should be obvious and simple like it was implemented in Qt Location however it is not implemented fot Qt Charts for some reasons. Any ideas?
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- Akiv Doros
- 11 ноября 2024 г. 20:58
C++ - Тест 004. Указатели, Массивы и Циклы
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- molni99
- 26 октября 2024 г. 7:37
C++ - Тест 004. Указатели, Массивы и Циклы
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- molni99
- 26 октября 2024 г. 7:29
C++ - Тест 004. Указатели, Массивы и Циклы
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Hello,
I think, if you want write own design for series in QML ChartView, then you need inherit it from Q QAbstractSeries in C++, and override methods for painting. But in dovumentation missed information about some methods, therefore you need see c++ sources of this classes. I`m sure, that it is possible, but need spend a lot of time for it.
Yes, I can but I do not like to spend much time on this. And not sure I can subclass from QAbstractSeries as it does not have custom delegates examples and put any item inside it. PathView inside ChartView could be a solution, however probabaly will need to convert chart coordinates to screen coordinates there: also not sure ChartView has methods for this. Need to make some mockup to check this.
Ideal way could be Map element using from Qt Location where I have all I need: MapItemView, MapQuickItem and MapPolygon or MapPolyline for graphics as I have cartograhical information to draw. Bu again 2 questions:
- how to draw axis
- how to draw custom BarSeries imitating terrain elevation.
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