The document discusses the capabilities of ArcView's 3D Analyst extension. It can create and visualize 3D shapes and surfaces through tools like grids, TINs, and perspective viewing. Grids partition space into cells with numeric values, while TINs represent surfaces with triangles. The extension supports analyzing elevation, slope, aspect and other continuous spatial phenomena. It also provides instructions for an assignment involving preparing elevation point data and contours to model a terrain surface.

1. Advanced of Geographic Information System (ITM 524) Practical Topic: 3D Analysis “ Hartanto Sanjaya” <hartantosanjaya @ gmail.com>

10. Grid Themes vs Feature Themes Feature themes Grid themes

12. Row and Column in Grid 0 1 2 3 3 2 1 0 Row Column Cell (2,3)

14. Zone by Grid 1 2 3 1 1 1 1 1 1 3 3 2 2 2 2 4 Cell (2,3) is a water feature (2)

19. Data: Discrete and Continuous Discrete Continuous 1 2 3