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AutoCAD Civil 3D 2014 Essentials: Autodesk Official Press by Eric Chappell

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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® software surfaces.

Many would say that the goal in this process is to generate existing contours for the project. Twenty years ago, that would have been true, but in this era of 3D modeling, the result of your efforts will ...

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