共查询到20条相似文献，搜索用时 611 毫秒
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R. G. HEALEY 《International journal of geographical information science》2013,27(1):141-142
Cartographic modelling operations provide powerful tools for analysing and manipulating geographic data in the raster data model. This research extends these operations to the vector data model. It first discusses how the spatial scopes of analysis can be defined for point, line, and polygon features analogous to the raster cell. Then it introduces the local, focal, and zonal operations available for vector features, followed by providing a prototype syntax that might guide the implementation of these operations. Through example applications, this research also demonstrates the usefulness of these operations by comparing them with traditional vector spatial analysis. 相似文献
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Steven M. Graves 《Urban geography》2013,34(6):889-890
Globalization is constituted not only through interurban networks of global city regions, but also by intraurban linkages within city regions. In this article, we use the Madrid city region as a case study to analyze the emergence of new “globalization arenas”—dense agglomeration nodes of knowledge-intensive business services (KIBSs)—on the outskirts of large metropolises (METs). We focus on two distinct types of centers. New employment centers (NECs) are produced by intrametropolitan suburbanization and realignment of preexisting small agglomerations. Historic administrative cities (HACs) are created by suprametropolitan scale processes remaking historically autonomous centers beyond the MET, which are only now being articulated in metropolitan transformation. We use statistical, cartographic, and econometric techniques to analyze proximity and economic base characteristics of NECs and HACs. As KIBSs continue to evolve in patterns of decentralized concentration, HACs are becoming more important KIBS nodes amidst complex landscapes of functional specialization and repositioning. 相似文献
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