Research on Real-time Curve Drawing Method Based on VB.NET

摘要

Usually when designing a monitoring system, it is often necessary to use real-time fluctuation curves to represent the real-time situation of the current monitoring area. In order to achieve the representation of dynamic curves in various monitoring systems, this article uses VB.Net language on the VS2008 platform and uses GDI+ The class library realizes the drawing of the curve and the display of the coordinate axis. It conducts key research on the drawing and refreshing of the dynamic curve, solves the problem of the coordinate axis flickering, etc., and verifies this method of drawing the dynamic curve in conjunction with the example program. Experimental results show that the dynamic real-time curve class designed by this method has good real-time performance, strong versatility, and can be widely used.