An algorithm to improve the performance of drawing real-time curve with mass data

It is important to draw real-time data with the upper computer in virtual instrument developing. The requirement of real-time performance cannot be satisfied by using third-part drawing control directly. This paper proposes an algorithm with segmenting the data and sampling to improve the performance of redrawing. In the mean while, the shape of the curve is undistorted, and the part of the curve showed keeps stable, not vibrate when new data comes. The algorithm has been applied in the development of an electrochemical workstation with adequate performance and display effect.