适用于道路沿线信息查询的矢量压缩算法
发布时间：2018-10-20 15:44
【摘要】：针对矢量数字地图中道路布局错综复杂的问题,提出了一种用于查询道路沿线信息的矢量压缩算法。该方法首先基于夹角和欧氏距离对道路端点与拐角凸侧地物点进行判断,然后利用矢量压缩算法对道路折线进行简化、分析地物点是否在道路沿线的缓冲区内,从而实现地物信息与道路沿线的邻近度判断。试验结果表明该方法的高效性和有效性,具有复杂道路情况下沿线地物点的查询分析功能。
[Abstract]:In order to solve the complex problem of road layout in vector digital map, a vector compression algorithm for querying information along the road is proposed. Based on the angle and the Euclidean distance, the road end point and the corner convex surface point are judged, then the road broken line is simplified by vector compression algorithm, and the ground object point is analyzed whether the ground object point is in the buffer zone along the road. In order to achieve the information of features and the proximity along the road judgment. The experimental results show that the method is efficient and effective, and has the function of querying and analyzing the points along the road under complex road conditions.
【作者单位】： 黄河水利职业技术学院;河南理工大学矿山空间信息技术国家测绘地理信息局重点实验室;
【基金】：2016年度国家重点研发计划重点专项(2016YFC0803103)
【分类号】：P208
，
本文编号：2283612
[Abstract]:In order to solve the complex problem of road layout in vector digital map, a vector compression algorithm for querying information along the road is proposed. Based on the angle and the Euclidean distance, the road end point and the corner convex surface point are judged, then the road broken line is simplified by vector compression algorithm, and the ground object point is analyzed whether the ground object point is in the buffer zone along the road. In order to achieve the information of features and the proximity along the road judgment. The experimental results show that the method is efficient and effective, and has the function of querying and analyzing the points along the road under complex road conditions.
【作者单位】： 黄河水利职业技术学院;河南理工大学矿山空间信息技术国家测绘地理信息局重点实验室;
【基金】：2016年度国家重点研发计划重点专项(2016YFC0803103)
【分类号】：P208
，
本文编号：2283612
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