Road geometry in this problem does not need to add any auxiliary lines.
在这道几何题中，不需要添加任何辅助线。
Abstract: : the road geometry is are connected by a straight line and curve of a three-dimensional linear shape, also is the center line of the road space.
摘要：道路几何线形是由直线与曲线连接而成的空间立体线形形状，也就是道路中心线的空间描绘。
When set up the result and appraise to the ring road, attempt to establish the length of ring road geometry instead of the connection of serving the result.
在对环路设置效果进行评价时，试图建立环路几何长度与其服务效果的联系。
On the road modeling, according to road geometry restriction and industry standards, 3d road model is reconstructed and the distance of obstacle is calculated.
通过建立的道路模型，根据道路的几何约束关系以及行业标准，重建出整个道路的立体视图，从而测出障碍物的距离。
According to the analyses of geometry characters and road usage performance of the Lemniscate curve, this paper testifies the feasibility of the usage of the Lemniscate curve.
论文通过对双纽曲线几何特征和路用性能的分析，论证了双纽曲线整体式小环道的可行性。
Then by analyzing the characteristics of the road surface images, we carry out some necessary preprocesses such as gray scale calibration and geometry calibration to these images.
接下来分析了路面图像的特点，并对原始路面图像进行了必要的预处理，进行灰度校正和几何校正。
Then by analyzing the characteristics of the road surface images, we carry out some necessary preprocesses such as gray scale calibration and geometry calibration to these images.
接下来分析了路面图像的特点，并对原始路面图像进行了必要的预处理，进行灰度校正和几何校正。
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