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词汇 Spatial data
分类 英语词汇 英语翻译词典
释义

Spatial data

原声例句
科技 Crash Course

JPEG takes advantage of this by breaking images up into blocks of 8x8 pixels, then throwing away a lot of the high-frequency spatial data.

JPEG 通过将图像分解为 8x8 像素的块来利用这一点，然后丢弃大量高频空间数据。

英语百科

Geographic information system

E. W. Gilbert's version (1958) of John Snow's 1855 map of the Soho cholera outbreak showing the clusters of cholera cases in the London epidemic of 1854
Example of hardware for mapping (GPS and laser rangefinder) and data collection (rugged computer). The current trend for geographical information system (GIS) is that accurate mapping and data analysis are completed while in the field. Depicted hardware (field-map technology) is used mainly for forest inventories, monitoring and mapping.
An example of use of layers in a GIS application. In this example, the forest cover layer (light green) is at the bottom, with the topographic layer over it. Next up is the stream layer, then the boundary layer, then the road layer. The order is very important in order to properly display the final result. Note that the pond layer was located just below the stream layer, so that a stream line can be seen overlying one of the ponds.
Hillshade model derived from a Digital Elevation Model of the Valestra area in the northern Apennines (Italy)

A geographic information system or geographical information system (GIS) is a system designed to capture, store, manipulate, analyze, manage, and present all types of spatial or geographical data. The acronym GIS is sometimes used for geographic information science (GIScience) to refer to the academic discipline that studies geographic information systems and is a large domain within the broader academic discipline of geoinformatics. What goes beyond a GIS is a spatial data infrastructure, a concept that has no such restrictive boundaries.
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