Chapter 4 Modeling the Existing Terrain Using Surfaces
In Chapter 3, “Establishing Existing Conditions Using Survey Data,” you learned how to establish the existing conditions of a project by playing a very elaborate game of connect-the-dots. So far, you’ve been solving the connect-the-dots puzzle in only two dimensions—creating the treelines, fence lines, buildings, trees, and so on. Now, you’ll use the same data to establish the third dimension of your existing conditions model, and you’ll do that using AutoCAD® Civil 3D®surfaces.
Many would say the goal in this process is to generate existing contours for the project. Twenty years ago, that would have been the case, but in this era of 3-D modeling, the result of your efforts will serve ...
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