面状要素和线状要素的产状。
本文主要讨论线状要素与面状要素的关系以及这些关系在数据处理中的保持。
In this paper, mainly discussed is relation between linear feature and area feature, and keeping it in data processing.
本文引入面向对象的时空数据模型，把各种实体作为对象，把道路作为面状要素描述。
The paper introduced object oriented spatiotemporal data model, looked on all kinds of things as objects and described road as face shape element.
结合制图中点、线、面状要素文本放置的不同规则，模仿制图者对特定地物文本放置要求，提出了计算机辅助制图下线状地物文本自动标注方案。
Combined different rules of placement for point, line and polygon, the paper designed a program of automated text labeling for line feature in computer aided drawing.
结合制图中点、线、面状要素文本放置的不同规则，模仿制图者对特定地物文本放置要求，提出了计算机辅助制图下线状地物文本自动标注方案。
Combined different rules of placement for point, line and polygon, the paper designed a program of automated text labeling for line feature in computer aided drawing.
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