Mastering AutoCAD® Civil 3D® 2012

The Bottom Line

Create an alignment from a polyline. Creating alignments based on polylines is a traditional method of building engineering models. With Civil 3D’s built-in tools for conversion, correction, and alignment reversal, it’s easy to use the linework prepared by others to start your design model. These alignments lack the intelligence of crafted alignments, however, and you should use them sparingly.

Master It Open the MasteringAlignments-Objects.dwg file, and create alignments from the linework found there.

Create a reverse curve that never loses tangency. Using the alignment layout tools, you can build intelligence into the objects you design. One of the most common errors introduced to engineering designs is curves and lines that ...