3. 3D Underground Pipe Network Model
Three-dimensional renderings in the pipeline, the
pipeline can be expressed as cylinder, the axis of
cylinder is the center of the pipeline, and the radius of
cylindrical cross section is the radius of pipeline.
Figure 4. 3D underground pipe model
4. Adding Triangulated Irregular Network
In the digital terrain model, from the discrete
irregular distributing data points to create Triangulated
Irregular Network to simulate the triangular surface
topography .
Use the height point to make the TIN (Triangulated
Irregular Network) in ArcMap, through the SketchUp
to establish 3D model of TIN. That in order to simulate
the earth's surface model of the city of Anning.
Figure 5. TINs in Arcmap
Figure 6. TINs in 3D model
5. Establish the 3D Building Model
Google SketchUp can extract directly remote
sensing image in Google Earth, According to the
remote sensing image establish 3D model, this method
can be used for less demanding model.