1 Current Events & Technology · 1.3 Technology in planning

1.3.1 GIS: raster and vector data models, georeferencing and spatial analysis

A Geographic Information System stores, links and analyses data that has a location, using either a vector model (points, lines, polygons) or a raster model (a grid of cells), and it is the working platform for modern development plans.

  • MPSC ATP
  • Standard level
  • 8 min read
  • Full course

Key terms

  • GIS
  • raster
  • vector
  • topology
  • georeferencing
  • GCP
  • RMS error
  • UTM
  • WGS 84
  • buffer
  • overlay
  • shapefile
  • measurement scales

What this note covers

  1. Core factsFoundation
  2. ExplainedStandard
  3. DeeperAdvanced
  4. Mains writingMains writing
  5. Common trapsFoundation
  6. Quick revisionFoundation

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