g., converting square millimeters to square meters) or to export the results directly to a text file?
Many scripts will automatically place a text label with the final sum directly into your drawing.
Only calculate areas for objects on a specific layer (e.g., "G-AREA-BNDY"). total area autocad lisp
LISP routines usually cannot calculate the area of an "open" polyline. Use the PEDIT command to close your boundaries before running the script.
Mastering Total Area Calculation in AutoCAD: The Power of LISP LISP routines usually cannot calculate the area of
as TotalArea.lsp . Ensure the extension is .lsp and not .txt . In AutoCAD, type APPLOAD and press Enter. Locate your TotalArea.lsp file, click Load , and then Close. Type TOTALAREA in the command line to run it. Key Features to Look For in Advanced Area LISPs
(defun c:TOTALAREA (/ ss count total i obj) (setq ss (ssget '((0 . "CIRCLE,HATCH,POLYLINE,LWPOLYLINE")))) (setq total 0.0) (if ss (progn (setq count (sslength ss)) (setq i 0) (while (< i count) (setq obj (vlax-ename->vla-object (ssname ss i))) (setq total (+ total (vla-get-area obj))) (setq i (1+ i)) ) (alert (strcat "Total Area of " (itoa count) " objects is: " (rtos total 2 2))) (princ (strcat "\nTotal Area: " (rtos total 2 2))) ) (princ "\nNo valid objects selected.") ) (princ) ) (vl-load-com) Use code with caution. How to Install and Run the Script above into Notepad. Ensure the extension is
Create text that updates automatically if you stretch the polyline.
You don't need to be a programmer to use LISP. Here is a classic, lightweight code snippet that calculates the sum of all selected closed objects.