Blog

From Quick Select to layer filters, all the way to (wcmatch) and the .NET API

The documentation shipped with Inventor is full of code examples, but they are written in VBA. Here is how to adapt them to VB.NET so you can reuse them in an iLogic rule.

A cross-reference table mapping AutoCAD's commercial versions to their release number, .NET version, DWG/DXF format and internal code name — with, for each column, what it actually means.

A concrete case of the infamous E_FAIL: an .adsklib file that does exist on disk, yet which Inventor stubbornly refuses to open.

Metric or imperial, layout units, block insertion units: an overview of the system variables that govern units in AutoCAD.

Configuring Vault to work with Inventor is a bit harder than you might think.

How to join segments, arcs, and NURBS end to end to form contours and polylines.

Sixth article in the series: we define the ICurve2d and IBoundedCurve2d interfaces to model parametric curves, from infinite lines to circular arcs.

How to model intersection results between curves: crossings, tangencies, overlaps, and lazy computation of expensive information.

How NURBS curves fit into our interface hierarchy: control points, knot vectors, evaluation, and trimming.

Third article in the series: we add +, -, * and / operators to our types so geometric code reads as naturally as mathematical formulas.

First article in a series about building a geometry library in C#. We start with the most fundamental type: the point.

Fifth article in the series: we implement geometric transformations using homogeneous matrices, then explore a lighter alternative with quaternions.

Fourth article in the series: we create a dedicated type for directions, which guarantees by construction that its length is always 1.

Second article in the series: after the point, it's the vector's turn. Direction, length, dot product, perpendicularity… the foundations for working with directions in 2D and 3D.

Claude Code has just integrated a new _preview_ tool that allows you to execute PowerShell commands directly instead of going through Bash.

With a fixed length of fencing and a river as a natural boundary, what dimensions should you choose to maximize the area? A hands-on introduction to optimization problems.

In an Inventor sketch, every entity relies on points. Understanding their role is essential to mastering geometric constraints.

Install QuickLook and its CADImport plugin to preview CAD files directly from Windows Explorer, without opening AutoCAD.

Put your iLogic rules under version control and edit them in a modern editor with two export/import scripts.

Interact with Vault server data through a REST API

Developing AutoLISP macros with VS Code

How to improve the user experience of windows in AutoCAD.

What's frustrating about errors in Autodesk Inventor

SQL Server fails to install on an NVMe drive with sector sizes greater than 4096 bytes.

Understanding how Bash works on Windows

How to create and manage custom system variables in AutoCAD.

The persistent technical obstacles preventing AI from replacing human developers.