SheetMetal LISP-API

Since V16.2, BricsCAD LISP provides a dedicated interface for the SheetMetal & Mechanical functionality (requires.Platinum/SheetMetal license).
The full documentation is included with this LDSP package, as well as a sample Lisp file, containing many useful utility functions around SheetMetal LISP API.

The core of the API are three LISP functions: BmLispGet, SmLispGet and SmLispSet.

The prefix distinguishes between assembly (Bm, Bricsys Mechanical) and Sheet Metal (Sm) applications. On the current level APIs mostly serve query operations: your script can ask for some properties and then modify the content in the desired way using Mechanical, Direct Modeling and Sheet Metal commands.

The combination of the given LISP API, commands and LISP language allows to make powerful scenarios which automatize working with assemblies (including imported ones) and sheet metal parts.

As for any LISP application, the (command) function can also be used to control the program flow and to use native built-in functionality of BricsCAD SheetMetal and Mechanical functionality.
The native, built-in SheetMetal and Mechanical commands provide special support for LISP usage, by dedicated support of "errno" system variable, because the standard (command) function does not report the result status of the processed native, built-in command.
Please see chapter Using SheetMetal Commands for more details and samples.

A typical scenario : starting with a parametrized poor sheet metal part and instantiate it with a set of parameters, then create bends and junctions and finally generate the unfolding – all automatically.
Another scenario : import an assembly, traverse to it, recognize sheet metal parts and generate 2D unfolding drawings for each part.

Actually, the following SheetMetal / Mechanical LISP functions are available :