non-spatial data structure—hierarchical, networking and relationalDifferent sources of spatial and non-spatial databases Types of GIS database—spatial and non-spatial Representation of spatial features of the Earth's surface by vector and raster data structures (point, line and Polygon) Advantages ...
必应词典为您提供spatial-structure的释义,un. 空间结构;立体结构; 网络释义: 空间结构性;空间架构;空间组织说明;
This section elaborates on the concept of data, including the contrast between spatial and nonspatial data, means of storing data in a database, and the process of modeling real-world geographic data into a form that is storable in a database. 4.6.1 Spatial versus nonspatial data Whereas ...
The spatial data types and functions are available for MyISAM, InnoDB, NDB, and ARCHIVE tables. For indexing spatial columns, MyISAM and InnoDB support both SPATIAL and non-SPATIAL indexes. The other storage engines support non-SPATIAL indexes, as described in Section 13.1.14, “CREATE INDEX ...
Spatial database / Guye map-sheet / Tangshan map-sheet / Fangezhuangmeikuang map-sheet / 1∶50 000 / Quaternary / geological survey engineering / Beijing-Tianjin-Hebei region 1. 引言 河北省唐山市区及其周边区域是京津冀一体化发展的重要组成部分, 近年来, 其生态文明建设面临的诸如地...
1.09.1.2Spatial Data Infrastructure Aspatial data infrastructure(SDI) is a specific configuration of a data infrastructure to manage and delivergeospatial data. Included in an SDI are not just the hardware, networking, and software required to physically manage the data, but also the appropriate poli...
Tolerance is used to associate a level of precision with spatial data. The tolerance value must be a non-negative number greater than zero. The range of values and the significance of the value depend on whether or not the spatial data is associated with a geodetic coordinate system. (...
1.5 Data Model The Spatial data model is a hierarchical structure consisting of elements, geometries, and layers, which correspond to representations of spatial data. Layers are composed of geometries, which in turn are made up of elements. For example, a point might represent a building location...
The rapid emergence of spatial transcriptomics (ST) technologies is revolutionizing our understanding of tissue spatial architecture and biology. Although current ST methods, whether based on next-generation sequencing (seq-based approaches) or fluoresce
Spatial access methods (SAMs) for spatial data have to be defined Index spatial objects Facilitate efficient processing of simple spatial query types (e.g. range queries) Spatial Relationships A spatial relationship associates two objects according to their relative location and extent in space. Someti...