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.

A simple 2D maze generation app. It can also be used to generate random hatch patterns.

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.

A recursive Hilbert fractal space-filling pseudo curve generator in 2D/3D

Automatically update Autodesk® AutoCAD® title block attributes from a Microsoft Excel spreadsheet.

Very fast Labeling of polylines or XRef's containing polylines for Autodesk® AutoCAD®

Length, area, volume. Select, calculate, copy to clipboard, insert combined with any text as plain text, field, table, (dynamic) block, or simply export to TXT, CSV or JSON file.

Length, area, volume. Select, calculate, copy to clipboard, insert combined with any text as plain text, field, table, (dynamic) block, or simply export to TXT, CSV or JSON file.

Create shortcuts/bookmark to the xref files and set the properties of xref, so that later these xref's can be attached easily.

Replace selected blocks with blocks of the same name from another drawing.

BlackBox AutoPublish for Autodesk® AutoCAD® allows users to AUTOPUBLISH only the drawing(s) they want.

BlackBox Right Click Hatch for Autodesk® AutoCAD® allows the user to quickly hatch one or more selected, closed Curve entities, from the context (right click) menu.

BlackBox ViewportGrip for Autodesk® AutoCAD® allows users to choose how the Centroid & Viewport Grips behave.

Right Click Rename for AutoCAD® allows a user to select a single Entity, and contextually rename its Entity-specific properties, as supported by the RENAME, or RENAME Commands, from the context (right

BlackBox AutoPurgeReg for Autodesk® AutoCAD® allows users to Automatically Purge Registry Applications (RegApps) at drawing Open, and Save.

Quickly trace the boundary of selected objects. From selected objects(Line, Arc, Polyline), the app will trace and find out Closed Polyline in a second.

Inserting and Editing RasterImage is simpler than ever!

Quickly divide a closed polyline into smaller parts. A special tool for planning works.

Copy and Paste the group(s) between two drawings. Normally, when copying object(s) in group to another drawing, the group information will be removed. This tool will help you in this situation

Change Multiple Text Content by window selection.

Convert Wavefront Technologies OBJ (or .OBJ) files to Mesh3D entities.

A routine that puts the XY model space coordinates as text in the 4 corners of layout viewports.