大气污染点源扩散评价模式的计算机程序设计

Design of computer programs for measurement model of air pollution point source diffusion

首先用VisualFoxPro的控件定义一个类(Class),以实现新增、删除、保存和引入实际的测量原始数据,作为通用的操作应用于各个点源模式的屏幕;用DEFINECLASS语句分别定义"类"来计算源强、有效高度、平均风速,并把它们加入到各个屏幕的网格中。

A class containing the function of Add, delete, save and introduction of original data is defined by a definition of a Visual FoxPro's CLASS to approach common operation applying to various point source models. DEFINE CLASS statement is used to define a class for calculation of source power, effective height, mean rate of wind which are applied in grid of screen.