基于GDI+的心电波形处理  

Cardiogram Waveform Processing based on GDI+

作　　者：李斌[1] 邓凌云[1] 

机构地区：[1]深圳职业技术学院,深圳518055

出　　处：《电脑开发与应用》2007年第5期41-42,共2页Computer Development & Applications

基　　金：深圳市科技局基金资助项目(05KJcd022)

摘　　要：首先介绍了利用GDI+绘图的一般过程和方法。然后结合在远程心电监护项目开发中的应用,针对在绘制较大图形时,出现的图形闪烁问题以及采用在paint事件中绘制图形的方法,导致系统频繁重画,性能下降的问题,进行了分析和探讨。提出采用双缓冲技术解决图形绘制过程中的闪烁问题;采用避免在paint事件中绘制大图形的方法来解决系统性能下降的问题,最终取得了满意的图形显示效果。The general process and method of applying GDI＋ to graphing is presented and combing with the correlated problems encountered in developing long-distance cardiogram custody project, graph glittering during drawing bigger pictures and problems of Re-drawing and system performance dropping in the paint events are analyzed and discussed. It is proposed to use Dual -Buffer technique to resolve graph glittering and avoid drawing big graphs in the paint events to resolve system performance dropping in order to obtain the satisfactory graphical displaying effect.

关 键 词：图形设备接口扩展 双缓冲 VB.NET 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]