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hungvietdo
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Magnitude and Identify

Submission for VI4

Student

  • Hung Do; CS725:Information Visualization; Spring 2016;
  • Computer Science; Old Dominion University

First part

Using D3 to create visualizations. Detail: /hungvietdo/2c38eed928999266bf0b/example/

Second part

I used Tableau to create visualizations.

First question: magnitude as position on a common scale

  • Looking at the x-axis (time) of the chart we can compare the period of each task in a project gantt chart.
  • Property of discriminability: there are two bins in this type of chart color (type of task) and the width of task (how long).

Question 1

Second question: magnitude as area

  • This is channel in magnitude which use area to represent different temperature during the week. The smaller of rectange, the lower of temperature.
  • Property of discriminability: size and position of the rectanges. But clearly, these two bins are not quite right for human perception of discirminability.

Question 2

Third question: identity as color hue

  • This channel use hue color to categorize three different temperature groups (high, mean, min).
  • Property of discriminability: hue color and position are used to define the data item.

Question 3

Fourth question: identity as spatial region

  • Using spatial region to show different groups of temperatures.
  • Property of discriminability: size of the data item.

Question 4