Connect the first point of a curve or polyline with the last one.
连接曲线或多段线的第一点与最后一点。
For example, polyline requires four arguments: t has to be a Turtle;
例如，polyline这个多段线函数，需要四个实际参数：t必须是一个Turtle小乌龟；
I have reason to use Polygon over Polyline so Polyline is not an option.
我有理由使用多边形在多线多线不是一个选择。
You can make two more segments just to close that polyline in a closed curve.
您可以进行两个部分只关闭在一个封闭的曲线，折线。
In line 109, the polyline element is started, and an initial point is drawn at the origin of the axis.
第 109行是polyline元素的起点，它与坐标轴的原点重合。
Presents an algorithm for polyline clipping based on a multiply connected domain formed by finite loops.
提出了一种有限环域裁剪多义线的算法。
This code will draw a feedback polyline and in the sixth map mouse up a polygon will be created and drawn as shown.
这些代码将会绘制一个反馈的线，当鼠标第六次谈起的的时候，将会创建一个多边形，绘制效果如下所示。
Furthermore, an example of polyline clipping based on a multiply connected domain formed by finite loops is presented.
文章还给出了一个由内、外环组成的有限环域裁剪一条多义线的实例。
Once you have worked through all the values in the array, the polyline is closed off and a style is applied to the line.
处理完数组中的值后封闭折线并应用适当的样式。
While creating a point shapefile, when you are prompted to add a polyline shape, add each vertex as an individual point.
在创建一个点shapefile时，若系统提示添加一个多线形状，那么就以单个点添加每个顶点。
In engineering estimation, the calculation of bars shown with closed polyline is built on the bases of shape recognition.
工程概预算中，关于闭合钢筋线形式的钢筋量计算要以其形状识别为基础。
If you need to draw a different type of curve, you can draw it as a polyline, which is a series of very short lines that define a curve.
如果你需要绘制不同类型的曲线，那么你可以把它绘制为折线，它是一系列非常短的定义曲线的线。
Many programs draw objects on the screen with polylines. A polyline is a graphics programmer's term for a multisegment line defined by an array of vertices.
许多程序在屏幕上画出的对象呈折线形，折线是绘图程序的专用术语，专指由一系列顶点定义的多段线条。
Few polyline rhythm formed concrete slab in the middle of the site by changing a few thin interrupted line shape, increasing the sense of rhythm, streaks of light spill at night seem interesting.
几块折线的混凝土板形成的韵律感在中间的部位被变化的几根细的折线造型打断，增加了节奏感，夜间几缕灯光溢出显得趣味盎然。
In calculation models of cutting volume for dredging project, the cross section is usually a special one through survey points, and the curve of the river bed is assumed to be a line or a polyline.
通常疏浚工程中挖槽土方量计算模型的河床横断面是通过测量点的特殊断面，该断面轮廓曲线假定为近似直线或折线。
In calculation models of cutting volume for dredging project, the cross section is usually a special one through survey points, and the curve of the river bed is assumed to be a line or a polyline.
通常疏浚工程中挖槽土方量计算模型的河床横断面是通过测量点的特殊断面，该断面轮廓曲线假定为近似直线或折线。
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