;; Convert to common units (optional - adjust conversion factor) ;; For meters to square meters: no change ;; For millimeters to square meters: divide by 1e6 ;; For inches to square feet: divide by 144 ;; For feet to square feet: no change
If you are new to using custom code in AutoCAD, follow these simple steps to run either of the routines above:
The raw output of the Lisp is in drawing units . In AutoCAD, one drawing unit can represent 1 millimeter, 1 inch, 1 meter, or 1 foot. This depends on your template. total area autocad lisp
(defun c:TotalArea ( / ss totalArea i obj area) (vl-load-com) (setq totalArea 0.0) (princ "\nSelect closed objects (Polylines, Circles, Hatches, Regions): ") (if (setq ss (ssget '((0 . "LWPOLYLINE,POLYLINE,CIRCLE,HATCH,REGION")))) (progn (repeat (setq i (sslength ss)) (setq obj (vlax-ename->vla-object (ssname ss (setq i (1- i))))) (if (vlax-property-available-p obj 'Area) (setq totalArea (+ totalArea (vla-get-area obj))) ) ) (princ (strcat "\n====================================" "\nTotal Count: " (itoa (sslength ss)) " objects." "\nTotal Area : " (rtos totalArea 2 2) "\n====================================")) ) (princ "\nNo valid closed objects selected.") ) (princ) ) Use code with caution. How This Script Works
(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") ) ;; Convert to common units (optional - adjust
Tell me a bit more about what you are aiming to achieve to help me tailor this guide:
: The script initializes a counter at index 0 and loops through every object captured in the selection set. (defun c:TotalArea ( / ss totalArea i obj
To calculate the total area of multiple objects in AutoCAD using Lisp (AutoLISP), you can use a simple script that sums up the areas of the selected objects. This script will work with entities like polygons, polylines (2D), circles, and arcs, provided they are closed and have an area.