CV-04 - Scale and Generalization

Learning Objectives: 
  • Explain why the reduction of map scale sometimes results in the need for mapped features to be reduced in size and moved
  • Identify mapping tasks that require each of the following: smoothing, aggregation, simplification, and displacement
  • Illustrate specific examples of feature elimination and simplification suited to mapping at smaller scales
  • Apply appropriate selection criteria to change the display of map data to a smaller scale
  • Discuss the limitations of current technological approaches to generalization for mapping purposes
  • Explain how generalization of one data theme can and must be reflected across multiple themes (e.g., if the river moves, the boundary, roads and towns also need to move)
  • Explain how the decisions for selection and generalization are made with regard to symbolization in mapping