A seven-parameter similarity transformation calculator in 3D space.

Background color changer for OSNAPZ.

You can insert text bubbles to lines, curves, or draw leaders with it, or quickly make a schedule from text bubbles and/or other blocks.

Inserts Text Bubbles at end of lines, arcs, polylines, splines and leaders or at any other location of your choice. Renumber the text bubbles quickly as needed.

Powerful spreadsheet app to batch edit attributes of blocks across multiple drawings.

Powerful spreadsheet app to batch edit attributes of blocks across multiple drawings.

App to quickly copy a rectangular window of selected objects out from your drawing, and trim everything outside the window's edges. The result can be copied to the current drawing or to the clipboard.

App to quickly copy a rectangular window of selected objects out from your drawing, and trim everything outside the window's edges. The result can be copied to the current drawing or to the clipboard.

JTB Rebar is a BIM-like Rebar Callout - Automatic Rebar Table - Dynamic Beam Detailing app for Autodesk® AutoCAD®.

JTB Rebar is a BIM-like Rebar Callout - Automatic Rebar Table - Dynamic Beam Detailing app for Autodesk® AutoCAD®.

Batch and script utility for processing multiple Autodesk® AutoCAD® drawings.

Batch and script utility for processing multiple Autodesk® AutoCAD® drawings.

JTB Steel is an Add-in running inside Autodesk® AutoCAD®, adding powerful command features to help you draw simple and complex steelwork frames and details efficiently.

JTB Steel is an Add-in running inside Autodesk® AutoCAD®, adding powerful command features to help you draw simple and complex steelwork frames and details efficiently.

JTB Sheet Set Creator is an app for Autodesk® AutoCAD® that creates new Sheet Sets and Sheets (drawings) based on an Excel template for usage in Sheet Set Manager.

JTB Sheet Set Creator is an app for Autodesk® AutoCAD® that creates new Sheet Sets and Sheets (drawings) based on an Excel template for usage in Sheet Set Manager.

Manage drawings with many layouts more easily in a palette.

Manage drawings with many layouts more easily in a palette

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

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

Catenary is the curve of an idealized free hanging cable supported at its ends. This app provides several commands to draw this U-like shape in Autodesk® AutoCAD® utilizing different input parameters.

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

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

Helps identify and select possible duplicate cogo points in a Autodesk® Civil 3D® drawing.