在点阵设备上显示向量图的设计与研究

Design and Realization of Vector On Lattice Instrument

在点阵设备上显示汉字与数据已实现,但对于向量的显示则是一个难点。本文以一台便携式多功能伏安相位仪为例,详细阐述了液晶屏上向量表的设计和显示原理,并介绍了整数数字微分法(INTEGER DDA)的直线算法和贝森海姆作圆算法(BRENHAM'S CIRCLE ALGRITHM)。实验证明,该方法适用于不同点阵大小和其他控制器的液晶显示模块,并取得了比较好的显示效果。

It is very easier to display word and number than vector On lattice instrument, This paper, by analyzing LCD actuality and haracteristic,exemplified with a volt and phase instrument which is of easily-carried and multi-function, mainly presents a new design principle and some complex formulas of the vector gauge on the liquid Crystal Display（LCD）. An integer digital differential arithmetic（DDA）and circle arithmetic introduced. By testing, the means is applied to any lattice and else control LED.