Because TLEN.lsp is open-source community software, you do not need an official installation package from Autodesk. It is accessible through several trusted community archives:
View the precise cumulative length in your command line or an alert box. autocad tlenlsp download work
This is the fastest method for a one-time load. Because TLEN
to calculate total length only for objects on the layer named “LayerName”. Because TLEN.lsp is open-source community software
is a custom AutoLISP script (.lsp file) designed for AutoCAD. It allows users to quickly calculate and compile geometric data that native AutoCAD commands handle slowly.
You will see a message in the command line confirming that tlen.lsp has been loaded successfully.
Disclaimer: TLEN.LSP is provided as-is by its original author (Lee Mac). Always test custom routines in a non-production drawing first.