Lecture 5

Question 1

Dimensions for temporal vis: frame of reference

Answer 1

explicit spatial frame: combine spatial and temporal vis in one plot

abstract frame of reference: no reference to spatial information

Question 2

Growth ring maps: abstract or explicit?

Answer 2

Explicit.

Colour: temporal

Size of ring: spatial

Question 3

Dimensions for temporal vis: Arrangement: linear vs cyclic

Answer 3

Linear: there is a starting point

Cyclic: Periodic phenomena, absolute ordering doesn’t make sense

Question 4

Dimensions for temporal vis: time primitives: Time points vs intervals

Answer 4

Time points: Discrete points in time

Intervals: Interval-scaled time domain

Question 5

Rules for choosing scale

What are the consequences of this?

Answer 5

• Scales should match the phenomenon
• Scale should match the goal
• Interactive multi-scale exploration is required
• Hiearchy of scales is needed with proper embedding and smooth navigation