Total Area Autocad Lisp High Quality

AutoCAD is unitless by default. If you draw in millimeters, your area calculation will result in square millimeters ( mm2m m squared ). To display this in square meters ( m2m squared ), you must divide the result by

Tell me a bit more about what you are aiming to achieve to help me tailor this guide: total area autocad lisp

(defun c:TotalArea ( / ss count idx totalArea obj ent objName area) (vl-load-com) (setq totalArea 0.0) ;; Prompt the user to select objects (princ "\nSelect closed polylines, circles, hatches, or regions: ") (setq ss (ssget '((0 . "LWPOLYLINE,POLYLINE,CIRCLE,HATCH,REGION")))) (if ss (progn (setq count (sslength ss) idx 0) ;; Loop through all selected objects (while (< idx count) (setq ent (ssname ss idx) obj (vlax-ename->vla-object ent) objName (vlax-get-property obj 'ObjectName)) ;; Verify the object has an Area property and is closed if it is a polyline (if (vlax-property-available-p obj 'Area) (progn (setq area (vlax-get-property obj 'Area)) (setq totalArea (+ totalArea area)) ) ) (setq idx (1+ idx)) ) ;; Print the final results to the command line (princ (strcat "\nTotal Objects Selected: " (itoa count))) (princ (strcat "\nTotal Cumulative Area: " (rtos totalArea 2 4))) ) (princ "\nNo valid closed objects selected.") ) (princ) ) (princ "\nType TOTALAREA to run the script.") (princ) Use code with caution. Code Breakdown: How it Works AutoCAD is unitless by default

This tool represents the pinnacle of what's possible with AutoLISP for QTO, turning a manual, error-prone process into an automated, reliable system. Its entire logic is based on iterating through

This simple routine can save you hours of work. Its entire logic is based on iterating through a selection set ( ssget ) and summing a property extracted via Visual LISP ( vlax-get-property ). You can easily adapt this code to sum lengths or other properties by changing the property name from Area .

AutoCAD calculates area based on your drawing units. If you draft in millimeters, the LISP will output the total area in square millimeters. To automatically convert the output into square meters or square feet, you can modify the calculation line in the script. Locate this line in the LISP code: (setq totalArea (+ totalArea area)) Use code with caution.