Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 01 - Aufgabe 3

Aufgabenstellung

Beschreibung der Aufgabe 3

Zu beurteilende Grafik

CO2 Emissions

Critics on the table

• Non-data ink is high :
  • Shadowing and the 3-D visualization of the World Map, 3d visualization of the CO2 emissions and rising tides, these objects increase the non-data ink, thus decreasing the data-ink ratio.
  • 3-D CO2 Emission Bars block some the regions which is supposed to convey important information. (Especially the regions in black)
  • The icon, which aims to emphasize regions of poverty, blocks important information and de-emphasizes the data-ink, although this icon doesn't convey a precise information.
  • Consequently the real message or data is not supported in the Graph, which is against the task of visualizing quantitive information.

• The data is unorganized :
  • The essential message of the graph is not clear, CO2 emissions of Regions ? Heat the Poor ? or the rising tides ?
  • It is not clear which data has more priority.
  • The data is not sequenced, thus confusing the readers. In other words there is no direction for order in which data should be read.

• Scales and Plots :
  • The CO2 Emissions scale on the left side of the graph can't be taken as a reference, cause it is far away from the CO2 emission bars.
  • The negative axis of CO2 Emissions scale refers to nothing, since CO2 emissions can't have a negative value.
  • The 3-D Scatter plot which aims plotting the relationship between time and rising tides has an unclarity. It is not written on the axes what they refer to. Does the x-axis represent rising sea levels in centimeters ? and Does the y-axis refer to time in years ?.

Links

• InfoVis:Wiki UE Homepage

• UE InfoVis

• Gruppe 01