多粒度時空對象空間關(guān)系的統(tǒng)一表達與計算
發(fā)布時間:2018-12-05 21:07
【摘要】:空間關(guān)系表達了空間數(shù)據(jù)的相互約束,在空間查詢語言、數(shù)據(jù)檢索及空間分析中具有重要作用。當前關(guān)于空間關(guān)系的研究,多基于簡單地理對象,或者只對某一種空間關(guān)系進行獨立的算法設(shè)計,難以滿足多粒度對象多種空間關(guān)系的統(tǒng)一表達與計算。為此,本文利用幾何代數(shù)運算的對象無關(guān)性和維度無關(guān)性,構(gòu)建簡單對象空間關(guān)系計算算子,并將其推廣到多粒度對象,實現(xiàn)全空間地理信息系統(tǒng)框架下多粒度對象三種空間關(guān)系的一體化表達與計算。最后,以三角網(wǎng)求交算法為例,證明了算法的可行性,為全空間GIS中空間關(guān)系的表達和計算提供了借鑒。
[Abstract]:Spatial relations represent the mutual constraints of spatial data, and play an important role in spatial query language, data retrieval and spatial analysis. At present, the research of spatial relationship is based on simple geographical object, or only one kind of spatial relationship is designed independently, so it is difficult to satisfy the unified expression and calculation of multi-granularity object and multi-spatial relationship. In this paper, the object independence and dimensionality independence of geometric algebraic operations are used to construct a simple object spatial relation computing operator, which is extended to multi-granularity objects. The integrated representation and calculation of three spatial relationships of multi-granularity objects under the framework of full spatial GIS are realized. Finally, the feasibility of the algorithm is proved by taking the triangular intersection algorithm as an example, which provides a reference for the expression and calculation of spatial relations in the full-space GIS.
【作者單位】: 南京師范大學(xué)地理科學(xué)學(xué)院;南京師范大學(xué)虛擬地理環(huán)境教育部重點實驗室;南京師范大學(xué)計算機科學(xué)與技術(shù)學(xué)院;
【基金】:國家重點研發(fā)計劃項目(2016YFB0502300) 國家自然科學(xué)基金項目(41571380)
【分類號】:P208
[Abstract]:Spatial relations represent the mutual constraints of spatial data, and play an important role in spatial query language, data retrieval and spatial analysis. At present, the research of spatial relationship is based on simple geographical object, or only one kind of spatial relationship is designed independently, so it is difficult to satisfy the unified expression and calculation of multi-granularity object and multi-spatial relationship. In this paper, the object independence and dimensionality independence of geometric algebraic operations are used to construct a simple object spatial relation computing operator, which is extended to multi-granularity objects. The integrated representation and calculation of three spatial relationships of multi-granularity objects under the framework of full spatial GIS are realized. Finally, the feasibility of the algorithm is proved by taking the triangular intersection algorithm as an example, which provides a reference for the expression and calculation of spatial relations in the full-space GIS.
【作者單位】: 南京師范大學(xué)地理科學(xué)學(xué)院;南京師范大學(xué)虛擬地理環(huán)境教育部重點實驗室;南京師范大學(xué)計算機科學(xué)與技術(shù)學(xué)院;
【基金】:國家重點研發(fā)計劃項目(2016YFB0502300) 國家自然科學(xué)基金項目(41571380)
【分類號】:P208
【相似文獻】
相關(guān)期刊論文 前10條
1 毛建華,何挺,劉春燕;空間關(guān)系符號表示及其推理[J];江西師范大學(xué)學(xué)報(自然科學(xué)版);2000年04期
2 杜世宏;空間關(guān)系模糊描述及組合推理的理論和方法研究[J];測繪學(xué)報;2005年01期
3 杜世宏;秦其明;王橋;;空間關(guān)系及其應(yīng)用[J];地學(xué)前緣;2006年03期
4 馬林兵;曹小曙;;空間關(guān)系的動態(tài)性和模糊性描述[J];地理與地理信息科學(xué);2006年06期
5 胡圣武;王宏濤;;空間關(guān)系的研究進展[J];測繪科學(xué);2007年01期
6 蔡永香;;地圖要素間空間關(guān)系在綜合過程中的變化規(guī)律研究[J];嘉應(yīng)學(xué)院學(xué)報;2007年03期
7 許s,
本文編號:2365472
本文鏈接:http://sikaile.net/kejilunwen/dizhicehuilunwen/2365472.html
最近更新
教材專著