發(fā)布時(shí)間：2018-10-20 15:44

【摘要】：針對矢量數(shù)字地圖中道路布局錯(cuò)綜復(fù)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(diǎn)與拐角凸側(cè)地物點(diǎn)進(jìn)行判斷,然后利用矢量壓縮算法對道路折線進(jìn)行簡化、分析地物點(diǎn)是否在道路沿線的緩沖區(qū)內(nèi),從而實(shí)現(xiàn)地物信息與道路沿線的鄰近度判斷。試驗(yàn)結(jié)果表明該方法的高效性和有效性,具有復(fù)雜道路情況下沿線地物點(diǎn)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(shù)學(xué)院;河南理工大學(xué)礦山空間信息技術(shù)國家測繪地理信息局重點(diǎn)實(shí)驗(yàn)室;
【基金】：2016年度國家重點(diǎn)研發(fā)計(jì)劃重點(diǎn)專項(xiàng)(2016YFC0803103)
【分類號】：P208
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本文編號：2283612