Introduction: The Pain Point of Polyline Area Calculation
;; Step 1: Create a selection set (setq ss (ssget '((0 . "LWPOLYLINE,CIRCLE,ELLIPSE,SPLINE,REGION,HATCH"))))
: These are excellent but often cost $200–$1,000 per year.
To make the Lisp actually say "Sq. Ft." or "Sq. M.", we modify the final princ line. Replace the final princ lines with this:
Do you have a specific requirement for your total area Lisp (e.g., export to CSV, subtract voids, or add prefixes)? Write a comment below or modify the code as shown in Part 4 – the power of open-source Lisp is that it is infinitely customizable.