Creating Curves

Curves are an important part of surveying and engineering geometry. In truth, curves are no different from AutoCAD arcs. What makes the curve commands different than the basic AutoCAD commands isn’t the resulting arc entity but the inputs used to draw the arc. Civil 3D wants you to provide directions to the arc commands using land surveying terminology rather than with generic Cartesian parameters.

Figure 1-30 shows the Create Curves menu options.

Figure 1-30: Create Curves commands

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Standard Curves

When re-creating legal descriptions for roads, easements, and properties, engineers, surveyors, and mappers often encounter a variety ...

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