Area Autocad Lisp - Total
To convert square millimeters to square meters, divide by 1,000,000: (setq totalArea (+ totalArea (/ area 1000000.0))) Use code with caution. Pro-Tips for Error-Free Area Calculations
;; Copy total area to clipboard (optional) (initget "Yes No") (if (= (getkword "\nCopy total area to clipboard? [Yes/No] <No>: ") "Yes") (progn (setq area-str (rtos total-area 2 2)) (command "._SETENV" "Clipboard" area-str) (princ "\nTotal area copied to clipboard!") ) ) ) (princ "\nNo valid area objects selected.") ) ) )
Tell me your exact workflow preferences, and I can tailor the code to seamlessly fit your production environment. Share public link
: The ssget function prompts the user to select objects on screen. The associated association list acts as a strict entity filter. The script strictly allows the selection of LWPOLYLINE (lightweight polylines), POLYLINE (old-style 2D/3D polylines), CIRCLE , HATCH , and REGION entities. Open lines or text are automatically ignored to prevent calculation errors. 3. The Calculation Loop total area autocad lisp
It bypasses manual, click-intensive methods, allowing for rapid calculation of complex geometries. 2. Top LISP Routines for Calculating Total Area
as total_area.lsp
: Objects generated by third-party plugins (Civil 3D alignments or specialized architectural walls) might not respond to standard area inquiries. Explode or trace over these objects with a standard native polyline before running the routine. To convert square millimeters to square meters, divide
: Calculates closed polylines, circles, hatches, and regions simultaneously.
Check your drawing units. The LISP returns the area based on the drawing's unit system (e.g., mm2m m squared inches2i n c h e s squared feet2f e e t squared
Before diving into LISP, let’s acknowledge the pain points of vanilla AutoCAD: Share public link : The ssget function prompts
: Creates an MText object containing a Field Expression that stays updated if you stretch the boundary.
:Divide the output by 1,000,000. (setq total (+ total (/ area 1000000.0))) Use code with caution.
💡 If you want a LISP routine to load automatically every time you open AutoCAD, open the APPLOAD menu, click the briefcase icon under Startup Suite , click Add , and select your script file. Best Practices for Error-Free Area Calculations
(defun C:TSA ( / ss idx total obj area_val) (princ "\nSelect objects to sum their areas: ")
Several LISP routines exist for calculating total area, ranging from simple sum calculators to advanced scripts that label individual areas. A. The Basic Total Area LISP ( AreaM )
