Graphical Components and Mapping Strategies

This section discusses:
  • Graphical components i.e. individual components of graphs
  • Mapping strategies i.e. mapping between data and graphics
It is important to know about graphical components and mapping strategies because it helps to:
  • evaluate visualizations: with an in-depth understanding of the above, we will be able to criticise design choices
  • re-design evaluations
Visual Encoding refers to the strategies/rules used to turn data into graphical representations. More precisely, it refers to the mapping between:
  • data items
    \leftarrow\rightarrow
    visual marks
  • data attributes
    \leftarrow\rightarrow
    visual channels