;;; ========================================================================== ;;; TOTAL AREA CALCULATOR LISP (Command: TA) ;;; Calculates the cumulative area of selected closed objects. ;;; ========================================================================== (defun c:TA ( / ss i ent obj area totalArea ) (vl-load-com) ; Load Visual LISP extensions (setq totalArea 0.0) ;; Prompt user to select closed objects (princ "\nSelect closed polylines, circles, splines, or ellipses for total area: ") (setq ss (ssget '((0 . "POLYLINE,LWPOLYLINE,CIRCLE,SPLINE,ELLIPSE")))) ;; Check if a selection was made (if ss (progn (setq i (sslength ss)) ;; Loop through all selected objects (while (> i 0) (setq i (1- i)) (setq ent (ssname ss i)) (setq obj (vlax-ename->vla-object ent)) ;; Verify the object has an area property and is not open (if (vlax-property-available-p obj 'Area) (progn (setq area (vlax-get-property obj 'Area)) (setq totalArea (+ totalArea area)) ) ) ) ;; Print results to the user (princ (strcat "\n----------------------------------------")) (princ (strcat "\nTotal Objects Selected: " (itoa (sslength ss)))) (princ (strcat "\nCumulative Total Area: " (rtos totalArea 2 4))) (princ (strcat "\n----------------------------------------")) ;; Display alert box for quick viewing (alert (strcat "Area Calculation Complete!\n\n" "Total Objects: " (itoa (sslength ss)) "\n" "Total Area: " (rtos totalArea 2 4))) ) (princ "\nNo valid closed objects were selected.") ) (princ) ; Quiet exit ) (princ "\nTotal Area LISP Loaded successfully. Type 'TA' to run.") (princ) Use code with caution. How to Install and Run the LISP Routine
Save the file. Name it TotalArea.lsp . Ensure the extension is strictly .lsp and not .lsp.txt . Step 2: Load it into AutoCAD Open your current drawing in AutoCAD. Type in the command line and press Enter . total area autocad lisp
: You can find various versions of this script online, such as those from Lee Mac Programming or JTB World . Load the LISP : Open AutoCAD and type APPLOAD in the command line. Navigate to your .lsp file and click Load . Type 'TA' to run