在第二章中，介绍了一些机械制图的基本知识及制图规则，并介绍了二维图形特征的概念。
In Chapter 2, some basic knowledge and rulers on mechanical drawing are reviewed, and the computer of two dimensional view features is introduced.
群体规则是由克雷格·雷诺兹发现的。 他是研究象征符号的计算机科学家，制图软件制造商。
The flocking rules were discovered by Craig Reynolds, a computer scientist working at Symbolics, a graphics hardware manufacturer.
设计师要根据某件建筑制图，准备一套不同形状跟组合这些形状的规则；
The designers prepared a set of shapes and assembled rules from an architectural drawing.
从规则高程格网中自动提取等高线是地理信息系统以及计算机制图的基本功能。
The extraction of contour lines from Grid DEM is a primary function in computer-aided cartography and GIS.
它比国内外现有的图解法具有制图简单、图线规则、使用方便的优点。
The method has the advantages, over the graphic methods available at home or abroad, of simplicity in drawing, regularity of lines drawn and convenience in use.
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.
结合地图表达的层次性和递回性特征，将移动地图制图的句法结构抽象为“制图词汇+句法规则”的最简形式。
Combined the hierarchical and recursive characteristics of map representation, the simplest form of syntax structure is abstracted as carto-lexicons and syntax-rules.
结合地图表达的层次性和递回性特征，将移动地图制图的句法结构抽象为“制图词汇+句法规则”的最简形式。
Combined the hierarchical and recursive characteristics of map representation, the simplest form of syntax structure is abstracted as carto-lexicons and syntax-rules.
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