How to create custom QLineSeries class and modify content of QLegend in QtCharts?

[tuhao]

1. I need to split a QLineSeries in multiple sections that not connect together, each section with a different color. How to create a custon QLineSeries?
2. I create multiple QLineSeries in chart, but I don't want some of them to show in the legend, it seems no way to make them disapear in the legend.

[Flotisable]

@tuhao

1. I don't know how to create a custom QLineSeries, but maybe use a class to handle many QLineSeries is a choice.
2. I have tried using QLegend, it may meet your need, set up the corresponding QLegendMarker can make the legend dissapear.
   read QChart::legend, QLegend and QLegendMarker for more information

[tuhao]

@Flotisable thank you, I'll have a try