Civil 3D
Autodesk's civil engineering and survey vertical built on top of AutoCAD, adding alignments, surfaces, corridors, and pipe networks.
Civil 3D is the AutoCAD-based design product for civil engineering and land surveying. It adds first-class objects — Alignments, Profiles, Corridors, Surfaces, Pipe Networks, Pressure Networks, Parcels — on top of standard AutoCAD geometry. The .NET API exposes all of these through Autodesk.Civil.DatabaseServices, so a Civil 3D plugin can read a corridor cross-section, generate quantity takeoffs, or import a survey LandXML automatically. Civil 3D plugins NETLOAD just like AutoCAD plugins.
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Verified Civil 3D plugins for alignments, corridors, surfaces, pipe networks, and LandXML round-tripping. Built and tested by working civil engineers and land surveyors.
Verified Civil 3D-specific .NET plugins and AutoLISP routines for civil engineers and land surveyors. Reads and writes first-class Civil 3D objects.
Related terms
A managed assembly (C#/VB.NET DLL) that uses Autodesk's .NET API to add commands and behaviour to AutoCAD or Civil 3D.
An open XML schema for exchanging civil engineering and survey data — surfaces, alignments, parcels — between Civil 3D and other software.
The AutoCAD command that loads a managed .NET plugin DLL into the running session.