老外写的Qt实时曲线，进过测试能每秒绘制2通道200点的数据 实时可信共享给大家，希望能有所帮助。-The foreigners write Qt real-time curve into test can draw 2 channel 200 points per second of data in real-time credible for everyone to share, hoping to be helpful.

linux下MINIGUI绘制实时曲线的代码,paint the realtime line on linux of minigui