chapter  5
- Visualization Techniques for Spatial Data
Pages 38

Spatial data visualization, which corresponds to the field of scientific visual-

ization, assumes that the data has an implicit or explicit spatial or spatio-

temporal attribute. This constraint facilitates both the creation and inter-

pretation of the visualization, as there is an intuitive, and often straightfor-

ward, mapping of the data attributes to graphical attributes of the entities

conveying the information in the visualization. As our visual perception

system is constantly receiving and interpreting imagery of the physical phe-

nomena surrounding us, it is quite natural to process the same form of

imagery on a computer screen. The main differences are:

• In viewing the world surrounding us, we are not constrained by a twodimensional, discrete, low-resolution projection.