Please answer the following two questions that pertain to Lecture 10, Lecture 11, and Lecture 12.

  1. State the difference between geometric and semantic zooming. In particular, make sure to describe the differences at the level of visual encoding (and maybe viewpoint).

    Consider an interactive scatterplot where each data point is encoded as a circle and zooming is enabled. If the radius of the circle changes during zooming is the zoom geometric or semantic? What about if the radius stays fixed during zooming?

  2. Explain the difference between overview+detail and focus+context visualizations. Be sure to describe the basic set of views in each as well as the potential interactions. Give an example of a visualization that uses overview+detail. Give an example of a visualization that uses focus+context.

Grading

Submit your quiz in a folder called quizzes in your git repo. Within this folder create a file Q04.txt that has your answers.

For each question, I’m expecting an answer of 150 words or less. Aim to answer each question in a single paragraph.

I plan to grade your answer on a scale of 0-5, where 5 indicates that you completely answered all portions of the question. Thus, you will receive a score of 0-10 for this quiz. This score will be scaled to the total value of this quiz for your final grade (1%).