本文介绍了在计算机系统上用字符打印机执行绘图功能，绘制各种等值图与剖面图的方法。
This paper-described a method for drawing graphs, such as cou-tours and profile maps on a characters printer without special graphics hardware and software.
Windows用户能够继续在熟悉的环境中工作，使用办公套件、绘图或者执行其他任务。
The Windows user is able to continue working in a familiar environment, using the office suite, drawing diagrams, or performing other tasks.
在绘图工具中，没有错误检查，也不执行任何规则。
In a drawing tool, there is no error checking or enforcement of rules.
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