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

The FREE plugin for Autodesk® AutoCAD® to get Google Earth imagery right into your drawings!

このプログラムを利用すると、日本の設計図書作成の効率化が図れるだけでなく、日本固有のファイル形式の読み込み／書き出しができます。本Update1より、国総研交換標準読み込みツールを統合しました。

Show the DWG and DXF versions and properties and metadata in Explorer columns or in file dialog boxes within Autodesk® AutoCAD® or other applications.

Set the reference surface of selected parts or entire network with one command.

Application to change the style of multiple pipes or structures to a user specified style that exists in the drawing. Capable of doing an entire network or selected parts only.

Calculates the elevations of two crossing pipes and inserts a leader with text showing the invert of the higher pipe and crown of the lower pipe.

Set the reference alignment of selected parts or entire network with one command.

App for Autodesk® AutoCAD® makes it easy to create or draw a catenary curve as a polyline by specifying the start and end point and the length/immediate point/sag and optionally a diameter(width).

App for Autodesk® AutoCAD® makes it easy to create or draw a catenary curve as a polyline by specifying the start and end point and the length/immediate point/sag and optionally a diameter(width).

DWG Columns freeware shows the DWG and DXF version in Explorer columns or in file dialog boxes within Autodesk® AutoCAD® or other applications.

Allows changing layer color of selected multiple objects without entering layer manager.

Lisp allows continuing drawing Polyline, 2D polyline, 3D Polyline, MultiLine, or Line starting from the selected end.

Replaces the last profile entity with the exact same profile entity. This provides a method to remove the extended portion of a profile after the extension.

A command to label the station ahead and station behind a vertex on polyline relative to an alignment PI. This command is useful when Civil 3D only presents for the station and offset label.

Extracts all of the boundaries from surfaces in the drawing.

This will help in creating an Autodesk® Civil 3D® profile based on the vertices of the 3D polyline.

OCF検定に合格しているDWGとSXF形式（sfc/p21/SFZ/P2Z）への相互変換ツールです。 またAutodesk® Civil 3D®で出力したLandXMLに、日本独自の属性を付加し、「３次元設計データ交換標準（案）Ver.1.2」として出力します。

Attempts to improve a field survey in certain cases by creating a smoothed out version of an original 3d polyline

A road design productivity tool to quickly visualize horizontal sight distance lines along a polyline alignment.

Generates successive polyline approximations of lwpolyline/polyline3d objects to smooth out the original shape but keep the overall polyline trend.

Morphs one polyline into another by generating intermediate polylines at arbitrary stages of the process.

A basic recursive random tree generator in 2D and 3D.

Create multiple surfaces from a selected Autodesk® Civil 3D® surface at precise elevations.