划区算法
Zoning algorithm
以上为机器翻译结果，长、整句建议使用 人工翻译 。
借鉴面向对象的思想，提出了一种扫描地形图自动分层算法，算法先将地形图线划要素与普染区背景分离；
In this paper, object-oriented approach is introduced into of segmentation scanned map. The procedure is described as follows. First, linear elements and area elements are separated.
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