【摘要】：針對矢量數(shù)字地圖中道路布局錯綜復雜的問題,提出了一種用于查詢道路沿線信息的矢量壓縮算法。該方法首先基于夾角和歐氏距離對道路端點與拐角凸側(cè)地物點進行判斷,然后利用矢量壓縮算法對道路折線進行簡化、分析地物點是否在道路沿線的緩沖區(qū)內(nèi),從而實現(xiàn)地物信息與道路沿線的鄰近度判斷。試驗結(jié)果表明該方法的高效性和有效性,具有復雜道路情況下沿線地物點的查詢分析功能。
[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.
【作者單位】： 黃河水利職業(yè)技術學院;河南理工大學礦山空間信息技術國家測繪地理信息局重點實驗室;
【基金】：2016年度國家重點研發(fā)計劃重點專項(2016YFC0803103)
【分類號】：P208
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本文編號：2283612