I am new to qwt. I am using visual studio 2008 based on qt4.8.4 and qwt6.0.2 running on Windows XP. I am doing a project about realtime plotting the data which come from serial port. Now, I have finished the data receiving using QextSerialPort and QThread. When I push a button, the mcu will send data to PC every 1 second. however, I am puzzled with realtime plot these data point one by one. I have modified the oscilloscope example to do some plot. It worked well at begin, then the screen frozen. I did not buffer the receive data because I think 1 second interval is enough for pc to plot them. Would anybody give me some advice on realtime plot external data using qwt.
Thanks so much.