Spence, Information Visualization, 2 nd Edition, © Pearson Education Limited 2007 Slide 1.1 Figure...

Spence, Information Visualization, 2nd Edition, © Pearson Education Limited 2007

Slide 1.1

Figure 1.1 A redrawn version of Minard’s map showing some data more clearly than in the originalSource: http://www.napoleanic-literature.com, © John Schneider


Slide 1.2

Figure 1.2 Florence Nightingale’s diagram showing the dramatic reduction in death rates in the hospitals of Scutari following the changes she introducedSource: Nightingale (1858)


Slide 1.3

Figure 1.3 Part of John Snow’s original map in which each death from cholera is indicated by a black bar. The dotted line encloses the area that was closer to the Broad street pump (in walking distance) than to any other street pumpSource: Cholera Inquiry Committee, St. James parish. Report on the cholera outbreak in the parish of St. James, Westminster, during the autumn of 1854. London, J Churchill, 1855. Map 3. Thanks: Brock Craft


Slide 1.4

Figure 1.4 The John Snow pub in Broadwick Street, LondonSource: Nightingale (1858)


Slide 1.5

Figure 1.5 Harry Beck, creator of the famous London Underground mapSource: Ken Garland


Slide 1.6

Figure 1.6 The process of information visualization. Graphically encoded data is viewed in order to form a mental model of that data

Data

Ah HA ! !We look atthat picture

and gaininsight

Information visualization

DataData

Ah HA ! !We look atthat picture

and gaininsight


Ah HA ! !Ah HA ! !We look atthat picture

and gaininsight



Slide 1.7

(a)

Figure 1.7(a) A table associated with the exploration of potentially useful drugs may involve many rows corresponding to compounds and fourteen columns associated with specific properties. Gaining insight into such a table is difficult


Slide 1.8

(b)

Figure 1.7(b) The visual encoding of the table data can enhance understanding. In this example a property ‘ID’ is plotted against ‘Assay1’. Colour and shape both encode the passing or failure of a purification test, and size encodes molecular weight. Identification of one compound reveals its molecular structureSource: Courtesy of Spotfire Inc.


Slide 1.9

Treatments

A B C D E F G

1

2

3

4

5

6

7

8

9

10

Crops10

A D C E G B F

1

3

8

2

6

4

7

9

5

Treatments

Crops

Rearrange

Figure 1.8 An example of a simple rearrangement of the representation of data that can lead to insightSource: Courtesy of Bob Waddington


Slide 1.10

Treble

Bass

Figure 1.9 Circle size encodes the influence of components on the performance ofa circuit


Slide 1.11

Figure 1.10 An interface permitting dynamic exploration of the effect of a component value on a circuit property


Slide 1.12

Figure 1.11 A map showing the states of California and Nevada and the cities of Los Angeles and Reno, to illustrate the concept of ‘cognitive collage’


Slide 1.13

Figure 1.12 Reconstruction from X-ray CT showing distance to bone (colour map on skin surface) of the Texas horned lizard and the Mexican horned lizardSource: DigiMorph.org; Courtesy Dr. Wendy Hodges and Dr. Timothy Rowe


Slide 1.14

Figure 1.13 Incidence of the surname Spence by region of England, Scotland and Wales, in 1881 and 1998

1881 1998

Spence, Information Visualization, 2 nd Edition, © Pearson Education Limited 2007 Slide 1.1 Figure...

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