| GIS中缓冲区自动生成问题研究 |
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| 引用本文： | 孙立新,黄鸣,任美睿.GIS中缓冲区自动生成问题研究[J].测绘与空间地理信息,1998(3). |
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| 作者姓名： | 孙立新 黄鸣 任美睿 |
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| 作者单位： | 哈尔滨工程高等专科学校 150001
(孙立新，黄鸣)，哈尔滨工程高等专科学校 150001(任美睿) |
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| 摘 要： | 缓冲区分析(Buffer Analysis)是地理信息系统(GIS)重要的空间分析功能之一。地理信息系统中的缓冲区生成分点、线、面三种,其中线状目标缓冲区生成是关键和基础。本文将线状目标缓冲区的生成分为每个线状目标缓冲区多边形独立生成过程和所有线状目标缓冲区多边形重叠合并过程两个阶段,并分别给出了相应的矢量算法。
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| 关 键 词： | 地理信息系统 计算机图形学 缓冲区生成 矢量算法 |
The Vector Algorithm for Automatic Buffer Creation for Linear Objects in GIS |
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| Sun Lixin,Huang Ming,Ren Meirui.The Vector Algorithm for Automatic Buffer Creation for Linear Objects in GIS[J].Geomatics & Spatial Information Technology,1998(3). |
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| Authors: | Sun Lixin Huang Ming Ren Meirui |
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| Abstract: | Buffer analysis is one of the several important analysis functions of geographical information system(GIS). In GIS, buffer polygon creation can be divided into three types: for points, curve lines and polygons. The buffer creation for curve lines is the key and basis. In this paper, the procedure of the buffer creation for curve lines is divided into two steps: independently creating the buffer polygons for each curve lines and merging the buffer polygons created in the previous step. The algorithms for these two steps are provided respectively. |
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| Keywords: | Geographical Information System Computer Graphics Buffer Creation Vector Algorithm |
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