Each point of the polygon is added to the temporary shape on line 23, and if it's the first point in the polygon, its location is recorded as the placement for the text annotating that piece.
多边形的各个点都将被添加到第23行的临时图形中，并且如果它是多边形中的第一个点，则把其位置记录为注释该部分的文本的位置。
As you see in Figure 4, The solution to the point-in-polygon problem is to draw a horizontal line starting at the point in question.
如图4中所示，点包容问题的解决方案是绘制一条从所关注的点开始的水平线。
It is the basic function in the digital cartographic, electronic cartographic and GIS, the polygon be filled with point symbol.
多边形点符自动填充是数字地图制图、电子地图制作和GIS中不可缺少的功能。
Editing in 3d environment by a digital control plane, the method can deal with some geometry efficiently, such as point, line, and polygon, etc.
由数字控制平面的3d环境中的编辑，该方法可以处理一些几何效率，如点，线，多边形等。
In this paper, based on object-oriented design, we design an efficient solid model for 3-dimension object constructed by point, straight line and polygon to accomplish hidden-line detection method.
文中应用面向对象的设计方法 ，针对消除隐藏线算法 ，为由点、直线段、多边形构成的立体图形设计了一种实体模型 ，该实体模型具有封装性和可维护性等面向对象设计方法的优点。
In this article, the authors study the trimming of a random smooth curve in a plane polygon and present an arithmetic for it, with the conclusion drawn from the concept of traversing point.
研究了平面任意封闭区域对平面任意光滑曲线的裁剪，提出光滑曲线对封闭区域的穿越点概念，并以穿越点为依据，给出了平面任意封闭区域对光滑曲线的裁剪算法。
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.
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。
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