Total Area Autocad Lisp

To make the script even more useful, it can be modified to prompt you for a location and place a text entity containing the final calculated area.

There is no single "official" Total Area Lisp, but the most widely used and reliable version is often called . Below is the fully commented, production-ready code.

(repeat (setq i (sslength ss)) ... )

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. total area autocad lisp

You might ask, "Doesn't AutoCAD 2025 have a built-in Total Area tool?"

Use a window or crossing selection to pick all polylines, circles, etc.

This comprehensive guide covers how AutoLISP transforms your workflow, provides a production-ready script you can copy and use immediately, and explains how to manage drawing units and text exports. Why You Need a Total Area LISP Routine To make the script even more useful, it

(princ "\nSelect objects to calculate total area...") (setq ss (ssget '((-4 . "<OR") (0 . "CIRCLE") (0 . "ELLIPSE") (0 . "HATCH") (0 . "LWPOLYLINE") (0 . "POLYLINE") (0 . "REGION") (0 . "SPLINE") (0 . "ARC") ; Arc (converted to region) (0 . "LINE") ; Line (converted to region) (0 . "LWPOLYLINE") (-4 . "OR>"))))

Shows the cumulative area only if you select objects of the exact same type (e.g., only polylines). If your selection includes a mix of polylines, circles, and hatches, the cumulative area field disappears.

(defun C:MYAREA ( / ss total obj area cnt) (repeat (setq i (sslength ss))

Requires you to type AREA , select the "Object" option, click a shape, and repeat. If you want a total, you must manually type A (Add), then O (Object), click your shapes, and ensure you do not accidentally hit the wrong key, which resets the counter.

(defun C:TOTAREA ( / ss total area obj_name obj_list i ent) (princ "\nSelect objects to calculate total area: ")

When dealing with busy, complex blueprints, use the LAYISO command to isolate the boundary layer containing your target objects before running your total area LISP. This minimizes the risk of grabbing unrelated geometry.

An advanced LISP can extract area and a text attribute (e.g., room number) and output to a CSV file. This is getting into territory of full AutoLISP programming with file writing.