發(fā)布時間：2018-01-19 18:17

  本文關(guān)鍵詞： 面要素 滾球法 聚類 綜合　出處：《測繪科學(xué)》2017年10期 　論文類型：期刊論文

【摘要】：在自動制圖綜合中,面要素聚合較為常用的方法是利用聚類方法將面要素聚類為若干個類簇,進而將每個類簇合并為更大的多邊形圖斑。針對地圖制圖領(lǐng)域的前沿研究課題——地圖自動綜合,該文提出了一種基于滾球法的面狀要素聚合的新方法,通過實驗闡述了該方法在居民地等面要素綜合中的應(yīng)用,并與傳統(tǒng)的聚合算法進行了效率上的對比分析。該方法較傳統(tǒng)的聚合方法效率上有很大提高,在大數(shù)據(jù)量聚合中有一定的應(yīng)用前景,當選擇合適的滾球半徑進行綜合時,有較理想的結(jié)果。
[Abstract]:In automatic cartographic generalization, the common method of surface element aggregation is to cluster surface elements into several clusters by clustering method. Then, each cluster is merged into larger polygonal patches. A new method of surface element aggregation based on ball rolling is proposed to solve the problem of map automatic synthesis, which is one of the leading research topics in the field of cartography. Through experiments, the application of this method in the synthesis of residents' isoparametric elements is described, and the efficiency of this method is compared with that of the traditional aggregation algorithm. The efficiency of this method is greatly improved than that of the traditional polymerization method. It has a certain application prospect in the aggregation of large amount of data. When the appropriate radius of rolling sphere is selected for synthesis, it has a better result.
【作者單位】： 武漢大學(xué)測繪遙感信息工程國家重點實驗室;
【分類號】：P283.7
【正文快照】： 0引言制圖綜合是在比例尺由大到小變化的過程中,按照相關(guān)規(guī)則對地圖內(nèi)容進行篩選、抽象、概括、平移等操作,從而形成另一種比例尺地圖的過程[1-5]。在自動制圖綜合中,面要素聚合較為常用的方法是利用聚類方法將面要素聚類為若干個類簇,進而將每個類簇合并為更大的多邊形圖斑。，

本文編號：1444971