Total Length Lisp — For Autocad

To use these scripts, you must first load them into your current AutoCAD session. AutoCAD Tutorial Load a Lisp or Application

: The total length is instantly calculated based on the drawing's current unit and precision settings ( Technical Logic A typical routine, such as the widely-used script by Lee Mac Programming , utilizes the vlax-curve-getdistatparam vlax-curve-getendparam total length lisp for autocad

Some AutoCAD versions (like LT) do not support LISP. In that case, consider: To use these scripts, you must first load

Calculating the of multiple objects (lines, polylines, arcs) is a common task in AutoCAD that can be automated using AutoLISP routines. Depending on your needs, you can use a script to simply display the total in the command line or insert it as text directly into your drawing. Common Commands & Routines Depending on your needs, you can use a

| | Cause | Solution | | --- | --- | --- | | “no function definition: VLAX-ENAME->VLA-OBJECT” | Visual LISP extensions not loaded | Type (vl-load-com) on command line and reload. | | “bad argument type: lselsetp nil” | No objects selected | Ensure you actually select objects. Press Enter after selection. | | “Invalid selection” | Objects are not lines/polylines/etc. | Explode blocks or convert regions to polylines. | | “Total length = 0” | Maybe objects have zero length (points, text) | Use filter to include only curve objects. | | LISP doesn't load | File extension is .txt | Rename to .lsp . Enable “View file extensions” in Windows. |

A LISP routine is a plain text file (with a .lsp extension) containing a set of instructions. When loaded into AutoCAD, it creates new commands that can perform complex tasks — like summing lengths — in milliseconds.

| Feature | Code Modification | |---------|-------------------| | | Use (rtos total 2 2) for decimal precision; add (getvar "lunits") | | Clipboard copy | Add (setq tmp (vlax-invoke (vlax-get-acad-object) 'GetInterfaceObject "HtmlFile")) + (vlax-invoke tmp 'ParentWindow 'ClipboardData 'SetData "Text" total) | | Exclude layers | Add layer filter: '(-4 . "<NOT") (8 . "HiddenLayer") (-4 . "NOT>") | | Table output | Create an AutoCAD table entity with totals per object type | | Add to total | Persistent counter across multiple selections (with reset option) |