基于對偶圖的道路網(wǎng)絡(luò)空間鄰近關(guān)系分析初探
發(fā)布時間:2018-06-29 01:40
本文選題:道路網(wǎng)絡(luò) + 空間鄰近關(guān)系 ; 參考:《地理與地理信息科學(xué)》2017年03期
【摘要】:基于對偶圖理論提出了一種面向道路網(wǎng)絡(luò)的空間鄰近關(guān)系分析方法。1)分析了道路網(wǎng)絡(luò)空間鄰近關(guān)系研究存在的問題,引入了道路網(wǎng)絡(luò)拓撲圖及其對偶圖描述道路網(wǎng)絡(luò)的結(jié)構(gòu)和關(guān)系;2)引入了鄰接矩陣描述對偶圖中頂點之間的鄰接關(guān)系,在鄰接矩陣的基礎(chǔ)上,定義了道路網(wǎng)絡(luò)的空間鄰近關(guān)系;3)提出了一種廣度優(yōu)先搜索算法,計算道路之間的空間鄰近關(guān)系階數(shù),并通過實例分析了算法的執(zhí)行過程;4)開發(fā)了一個原型系統(tǒng),描述了道路網(wǎng)絡(luò)空間數(shù)據(jù)組織方式,并通過實例展示了道路間鄰近關(guān)系的計算結(jié)果。實驗結(jié)果表明:基于對偶圖理論的方法能夠描述道路網(wǎng)絡(luò)之間的空間鄰接關(guān)系;基于提出的廣度優(yōu)先搜索算法能夠計算出道路之間的空間鄰近階數(shù)。
[Abstract]:Based on the bigraph theory, this paper presents a method for analyzing the spatial proximity relation of road network. (1) the problems in the study of spatial proximity relation of road network are analyzed. The topological graph of road network and its dual graph are introduced to describe the structure and relation of road network. (2) the adjacency matrix is introduced to describe the adjacency between vertices in a bipartite graph. On the basis of the adjacency matrix, the adjacent matrix is introduced. In this paper, the spatial proximity relation of road network is defined. A breadth-first search algorithm is proposed to calculate the order of spatial proximity relationship between roads. An example is given to analyze the implementation process of the algorithm. The spatial data organization of road network is described, and the calculation results of the adjacent relationship between roads are demonstrated by an example. The experimental results show that the method based on the dual graph theory can describe the spatial adjacency between road networks, and the spatial proximity order between roads can be calculated based on the proposed breadth-first search algorithm.
【作者單位】: 西南大學(xué)地理科學(xué)學(xué)院;江西理工大學(xué)建筑與測繪工程學(xué)院;
【基金】:國家自然科學(xué)基金(41301417、41361077) 重慶市基礎(chǔ)與前沿計劃項目(cstc2014jcyjA20017) 中央高;究蒲袠I(yè)務(wù)費專項資金項目(XDJK2015B022)
【分類號】:P208
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,本文編號:2080257
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