Volume visualization - The Visualization of Spatial Social Structure - page 269

1988 District Elections:
Scottish Voting
Composition.
Wire-frame representations
of a regular tetrahedron
containing the contests
of 920 wards won by
one of the four
major parties.

SLD

Lab Con

Above

SNP

SNP

Below

SLD

Lab Con

SNP

SNP

Front

Back

Lab SLD' Con

Con SLD Lab

SNP

SNP

Left

Right

SLD Con Lab

Lab Con SLD

SNP

SNP

Isometric

Oblique

Con

SLD

Lab

Lab

SLD

Con

Figure 9.14 Once there are more than three main parties in an election, you
need a tetrahedron, and on paper a set of views, to show fully the voting split.
Otherwise all but two of the parties have to be 'Others'. Here the centre of the
tetrahedron is generally avoided and wards tend to cluster along the SNP/Labour
and Labour/Conservative axes, with low Scottish Liberal voting at this time. Note
that the eight views were all originally screen-shots and so the resolution of each
is not especially high.