This is where (List Processing) becomes a game-changer. By using a custom LISP routine, you can calculate the total area of multiple objects instantly, saving hours of tedious work and reducing human error. Why Use a LISP Routine for Total Area?
Only calculate areas for objects on a specific layer (e.g., "G-AREA-BNDY").
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. total area autocad lisp
(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.
Automatically convert square inches to square feet or square meters. This is where (List Processing) becomes a game-changer
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
Seamlessly move your data from the CAD environment into a CSV or XLSX file for billing and scheduling. Only calculate areas for objects on a specific layer (e
Create text that updates automatically if you stretch the polyline.
Many scripts will automatically place a text label with the final sum directly into your drawing.
No more "did I already click that one?" moments. The Code: A Simple "Total Area" LISP Script