Qt plotting widget。QT曲线绘制类,用于制作各种曲线图。-QCustomPlot is a rather compact Qt widget for plotting, with the possibility of extension to your needs.

用QT中QPainter类画曲线，曲线点击鼠标和滚轮有放大缩小功能，-QPainter class with QT in drawing curves, curves and clicking the mouse wheel has a zoom function,