While AutoCAD's native AREA command allows for "Add Area" functionality, it can be tedious for large numbers of objects. Below are the best ways to achieve a complete "Total Area" feature. 1. Built-in "Quick" Methods (No LISP Required)
(defun total-area () (setq total 0) (setq ss (ssget "_:L")) (setq count (sslength ss)) (repeat count (setq ent (ssname ss 0)) (setq area (vla-get-Area (vlax-ename->vla-object ent))) (setq total (+ total area)) (ssdel ent ss) ) (princ "Total Area: ") (princ total) (princ "\n") ) total area autocad lisp
(defun C:TA ( / ss ent obj area total cnt) While AutoCAD's native AREA command allows for "Add
Manually calculating the sum of multiple areas in AutoCAD is prone to human error. Using the standard In AutoCAD, type APPLOAD and press Enter
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
An AutoLISP script (a .lsp file) extends AutoCAD's core functionality by executing custom macro code. Using a total area LISP routine provides several immediate advantages: