KeySurfaceFix allows you to find and repair holes in an Autodesk® Civil 3D® surface so that your surface accurately reflects the existing site and design proposals.

Confirmed to work with the leading slope stability software, this app automates the export process of profiles to DXF format for importing into slope stability software.

Move polylines to an elevation value stored in an Object Data field.

Extract multiple “child” surfaces from an existing surface by selecting polylines that define their outer boundary.

Exports surface analysis and corresponding properties to an *.anl text file. Imports text file and applies new surface analysis with inherited properties to selected surface.

Creates a 3D polyline at a desired grade or slope along a tin surface.

Traces profile with a polyline between selected stations.

Toggles various surface plan/model view display components from the command line.

Generates an Autodesk® AutoCAD® label of a selected surface's statistics.

Quickly isolates a range of contours by setting up the user contour analysis for a range of elevations.

Applies an object style to multiple objects at once. This app allows you to quickly apply a style to several objects at once.

Productivity tools for Pipe Networks.

Performs find and replace on a number of Autodesk® AutoCAD® Civil3D® Object type's Names and Descriptions.

Copies Profile View Labels from one Profile view to another.

Generates an Autodesk® AutoCAD® Tool Palette with buttons that correspond to the current drawing's object/label styles. Click button to apply style.

Automates the geometric design of stormwater ponds in Autodesk® AutoCAD® Civil 3D®.

Creates multiple profile views quickly for multiple alignments, with network parts in the profile views based on their horizontal distance to the alignments.

Generates successive polyline approximations of lwpolyline objects to smooth out the original shape but keep the overall polyline trend.

Recursively generates all possible lines along an Autodesk® Civil 3D® surface from a given start point having a specified grade.

Procedural random infinite tin surface terrain generator for Autodesk® Civil 3D®.

Simple command line interface for adding Autodesk® Civil 3D® Cogo points to a point group.

Creates an Autodesk® Civil 3D® TIN Surface below an Autodesk® AutoCAD® solid entity that cuts through the surface.

Polyhedral Mesh to Solid is for that difficult Mesh, which won’t convert to 3D Solids because of self-intersecting faces etc. It also locates the Center of Mass for a single or a group of objects.

TBN2CAD is a package of plugins for Autodesk® AutoCAD® to work with maps and images and also ease some design procedures.