Each model has a table of point values, and each has a set of The TIN model, shown in Figure 5-11, is pretty close to the model you see in Figure 5-7. Like in other topological data models, the TIN data model contains explicit information about which features are related spatially to others.
TINs are topological data models, just like DIME and TIGER models presented earlier in this chapter, but they’re specifically designed to incorporate the Z value component, whether it’s topography or economic data.