The primary focus of this text has been to explore ways that geometric information is displayed graphically. Previous chapters have introduced techniques ranging from orthographic multiviews to pictorial projections. This chapter looks at ways that all kinds of scientific and technical information— both geometric and nongeometric—can be displayed graphically. Nongeometric information such as temperature, pressure, and torsion is generated as part of the analysis phase of the design process. This type of information is also generated as part of many other activities of engineers and technicians in the course of their jobs. The graphic display of data of all kinds is a powerful tool both as part of a personal exploration toward a solution and as a means of communicating your ideas to others.

The chapter begins by placing data visualization into the context of engineering design. The types of data are defined as are the basic methods for displaying them. Rules for the effective presentation of data are outlined emphasizing the need to match the visualization method to the type of data you need to present and the audience you are presenting to. Data visualization was introduced in Section 5.7, Graphical Analysis of Engineering Data. The first part of this chapter will expand on these concepts and techniques.

Part of data visualization often involves display of 3-D geometric models created using CAD systems. Many 3-D CAD systems now have the capability of rendering and animating their models. In addition, these models, along with other data visualizations, can be integrated into technical reports and presentations using desktop and web publishing tools.