| 微机绘制林业专题图软件系统的研制 |
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| 引用本文： | 陈志泊,毛汉书,韩熙春.微机绘制林业专题图软件系统的研制[J].北京林业大学学报,1994(3). |
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| 作者姓名： | 陈志泊 毛汉书 韩熙春 |
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| 作者单位： | 北京林业大学基础课教学部，北京林业大学森林资源与环境学院 |
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| 摘 要： | 该文从分析计算机地图制图的原理和一般过程着手，针对目前林业生产、调查设计中所用专题图（如林相图、基本图等）的手工绘制方法所存在的缺点，用ＴｕｒｂｏＣ语言和Ａｕｔｏ－ｌｉｓｐ语言、配合Ａｕｔｏ－ＣＡＤ图形软件详细地设计了一个计算机辅助绘制林业专题图的软件系统。该系统采用了多边形的链式数据结构，能自动实现链拓朴和多边形搜索；自动计算小班的面积和对小班注记；能自动从资源数据库中读取资源数据对小班进行填充，所以通过图形能反映出某一地区森林资源的动态变化，是森林资源二类、三类调查内业处理的强有力的工具。
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| 关 键 词： | 计算机地图制图，林业专题图，链式数据结构，森林资源调查，林业小班 |
The Design for Microcomputer Aided Mapping Software System of Forest Special Maps |
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| ChenZhbo,MaoHanshu,HanXichun.The Design for Microcomputer Aided Mapping Software System of Forest Special Maps[J].Journal of Beijing Forestry University,1994(3). |
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| Authors: | ChenZhbo MaoHanshu HanXichun |
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| Abstract: | In this paper,based on the theory and general procedure of computercartography the computer aided mapping software system of forest special maps has beendesigned successfully with Turbo C, Auto-lisp language and Auto-CAD software on micro-computers. The system has used a chained data structure polygon in data structure. It canautomatically do chain topology and polygon searching, compute the area of every stand(orpolygon),and mark and fill the stand with the data read from the resource data bank.So themap can reflect the forest resources dynamic changesh in one district. |
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| Keywords: | computer cartography forest special maps chained data structure forestresources research forest stand |
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