Spatial Data Management

Spatial Data Management

Introduction: This chapter introduces the spatial database, the comparison with the general database and the storage mode of the spatial database。

Then it introduces two important data structures in GIS: raster structure and vector structure, as well as their specific storage methods. Then it compares the characteristics of the two structures and gives their mutual conversion algorithm。

Finally, it introduces the commonly used technology of spatial retrieval-spatial index, and some commonly used spatial index methods, such as BSP tree, R tree, CELL tree, and the query function of spatial data。

  • 1. Geographical Cognition of the Real World
  • 2. The abstraction of the real world
  • 3. Bit world
  • 1. Data meaning and data type
  • 2. Measurement scale of data
  • 3. GIS data quality
  • 1. Map digitization
  • 2. Processing of spatial data entry
  • 1. Computer network technology
  • 2. Distributed geographic information system
  • 3. WebGIS - World Wide Web Geographic Information System
  • 1. Socialization of GIS
  • 2. Other problems of GIS socialization
  • 3. The impact of society on the development of GIS

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