Total Area Autocad Lisp [LATEST]

Calculating the total area of multiple objects in AutoCAD is a common pain point that AutoLISP routines solve instantly. Instead of manually adding individual areas, a LISP routine can select multiple closed polylines, hatches, or circles and output the combined total. 🚀 Top AutoLISP Commands for Area

(defun c:TOTALAREA (/ ss i ent obj area total scale) (vl-load-com) (setq total 0.0) (setq scale 1.0) ; change if you need to multiply result (e.g., scale factor for units) (if (setq ss (ssget '((0 . "LWPOLYLINE,POLYLINE,CIRCLE,ELLIPSE,SPLINE,HATCH,REGION")))) (progn (setq i 0) (while (< i (sslength ss)) (setq ent (ssname ss i) obj (vlax-ename->vla-object ent)) (cond ;; LWPOLYLINE or POLYLINE: check closed and use Area property ((or (eq "AcDbPolyline" (vla-get-objectname obj)) (eq "AcDbLightWeightPolyline" (vla-get-objectname obj))) (if (= (vla-get-closed obj) :vl-true) (setq area (+ total (* scale (abs (vla-get-Area obj))))) (setq total (+ total 0.0)) ) ) ;; REGION ((eq "AcDbRegion" (vla-get-objectname obj)) (setq total (+ total (* scale (abs (vla-get-Area obj))))) ) ;; HATCH (area property exists) ((eq "AcDbHatch" (vla-get-objectname obj)) (setq total (+ total (* scale (abs (vla-get-Area obj))))) ) ;; CIRCLE ((eq "AcDbCircle" (vla-get-objectname obj)) (setq total (+ total (* scale (abs (vla-get-Area obj))))) ) ;; ELLIPSE and SPLINE - try Area property if present ((member (vla-get-objectname obj) '("AcDbEllipse" "AcDbSpline")) (vl-catch-all-apply (function (lambda () (setq total (+ total (* scale (abs (vla-get-Area obj))))) ))) ) ) ; cond (setq i (1+ i)) ) ; while ;; If we used an accumulating bug above, ensure total includes additions: ;; (the LISP above updates total inside each branch) (setq total (vl-round total 1e-6)) (vl-file-syst-write-line) ; no-op to avoid blocking on some versions (princ (strcat "\nTotal area: " (rtos total 2 4) " square units")) ;; Try to copy to clipboard (Windows only) (vl-cmdf "_.-pasteclip" "") ;; Better approach: use Visual LISP clipboard if available (if (and (fboundp 'vlax-put-property) (vl-string-search "Windows" (getenv "OS"))) (progn (vl-cmdf) ; no-op to ensure environment ) ) ;; Put numeric value on CLIPBOARD using system method if possible (if (and (vl-string-search "Windows" (getenv "OS"))) (progn (setq clipcmd (strcat "cmd /c echo " (rtos total 2 6) " | clip")) (vl-syst-sys (list clipcmd)) ) ) ) (princ "\nNo valid objects selected.") ) (princ) )

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

2. The "Area Subtract" Lisp (NETAREA)

For calculating net floor area (Gross area minus cores and shafts). It sums "Addition" objects (green layer) and subtracts "Subtraction" objects (red layer). Calculating the total area of multiple objects in

The Lisp function will calculate the total area of all selected objects and print the result to the command line. You don't need to be a programmer to use LISP

  ;; Step 3: Loop through each object in the selection set
  (repeat (sslength ss)
    (setq ent (ssname ss i))        ; Get entity name
    (setq obj_name (cdr (assoc 0 (entget ent)))) ; Get object type
: Calculates areas for multiple plots and automatically generates a structured AutoCAD table. RTR (Read Triangle Area)
Option C: Display in Multiple Units (The Professional Version)
This version shows your total in Square Meters and Square Feet simultaneously:
What’s your one small LISP that saves you the most time? Share in the comments – I’m always looking for the next workflow hack.