Manually adding each area using a calculator is not only slow but also prone to human error. This is where the magic of comes in. A well-written "Total Area Lisp" routine can instantly sum the areas of selected objects (polylines, circles, hatches, or regions) and present the result in your desired unit—square feet, meters, or even acres.

: These are excellent but often cost $200–$1,000 per year.

;; Step 1: Create a selection set (setq ss (ssget '((0 . "LWPOLYLINE,CIRCLE,ELLIPSE,SPLINE,REGION,HATCH"))))

For architects, civil engineers, and interior designers, calculating the total area of multiple spaces is a daily, yet tedious, task. AutoCAD’s native AREA command is powerful for single objects, but what happens when you need the combined square footage of 50 apartments on a floor plan, or 200 different lawn sections in a landscape master plan?

;; Add this to end of the main function (setq ins_pt (getpoint "\nPick point for text insertion: ")) (command "_.MTEXT" ins_pt "h" 10 "w" 0 (strcat "Total Area: " (rtos total 2 2) " SF") "") For calculating net floor area (Gross area minus cores and shafts). It sums "Addition" objects (green layer) and subtracts "Subtraction" objects (red layer). 3. The "Dynamic Update" Lisp This routine links the total area to a FIELD or RTEXT so that if you stretch a polyline, the total updates automatically (requires advanced Visual LISP using reactors). Part 6: Troubleshooting Common Errors Even the best Lisp routines can fail. Here are the top 5 errors and how to fix them.