本程序为我公司测绘室新近开发的袖珍微机软件之一,应用改程序可使计算机自动绘出矿山通用三心拱巷道的横断面图,在完成各种面积计算后立即打印有关数据及汉字注释。程序用扩展BASIC语言编写,将绘图、计算、成果打印及汉字输出等功能融成一体。为扩大利用袖珍机绘图打印的有限纸带宽度,将通常的横打输出改为竖打输出,并且有自动调节绘图比例尺的功 This program is one of the pocket computer software newly developed by our company’s surveying and mapping room. The program of application and modification can make the computer automatically draw the cross-sectional view of the mine’s general three-hearted arch roadway and immediately print relevant data and Chinese characters after completing various area calculation . The program is written in an extended BASIC language and integrates functions such as drawing, calculation, result printing, and Chinese character output. In order to expand the limited width of the paper to be printed with a pocket printer, the usual horizontal output is changed to vertical output, and the function of automatically adjusting the drawing scale