The feature set of ZwCAD again aligned to that of IntelliCAD. Creating its own code would allow ZwSoft to change direction in the crowded field of AutoCAD workalikes.Īfter the lawsuit ended, the company returned to the ITC, using it as an umbrella against further legal action. The company had originally relied on the IntelliCAD Technical Consortium for its code base, but then went through the arduous process of rewriting all its code from scratch to become independent of the ITC, just as Bricsys had done a few years earlier. The blame was placed on an employee who had borrowed the code, rather than write it from scratch.įor ZwSoft, this event was a setback. The suit ended in resolution, whereby ZwSoft agreed to allow Autodesk to check the source code three months before any release.

The suspicion arose after a rare bug in AutoCAD involving the Hatch command exhibited identical behavior in ZwCAD. The American company alleged that the Chinese one had copied its source code. Some years ago, Autodesk launched a law suit against CAD software vendor ZwSoft.

Zwcad autodesk lawsuit