Total Area Autocad Lisp

(defun c:totalarea (/ ss i ent area totalarea) (setq ss (ssget "X" '((0 . "POLYGON, POLYLINE, CIRCLE, ARC")))) (if ss (progn (setq totalarea 0) (setq i 0) (repeat (setq i (sslength ss)) (setq ent (ssname ss i)) (cond ((= (cdr (assoc 0 (entget ent))) "POLYLINE") (setq area (vlax-curve-get-area ent))) ((= (cdr (assoc 0 (entget ent))) "POLYGON") (setq area (cdr (assoc 41 (entget ent))))) ((= (cdr (assoc 0 (entget ent))) "CIRCLE") (setq area (* pi (expt (cdr (assoc 40 (entget ent))) 2)))) ((= (cdr (assoc 0 (entget ent))) "ARC") (setq area (* pi (expt (cdr (assoc 40 (entget ent))) 2) (/ (cdr (assoc 42 (entget ent))) 360))) ) (setq totalarea (+ totalarea area)) (setq i (1+ i)) ) (princ (strcat "\nTotal Area: " (rtos totalarea 2 2) " square units")) ) (princ "\nNo objects selected.") ) (princ) )

What do you primarily work with? (Inches, feet, millimeters, meters?)

Using fields tied to object IDs allows text notes to automatically update their calculations whenever you run a drawing REGEN (Regenerate). If your design workflow shifts constantly, look into creating LISP routines that deploy dynamic fields rather than static text strings.

One of the most straightforward tools is the paste Total Area command from . As its name suggests, it allows you to select closed linear entities (like polylines) and instantly provides the sum area in an alert and on the command line. Even better, it automatically copies the total area to your Windows clipboard, meaning you can paste it directly into an email, spreadsheet, or report with CTRL+V . total area autocad lisp

Note: This is a foundational example of a Total Area script.

Depending on which LISP file you load, these are the most common community-standard commands:

: Measures total area and automatically places text indicating the area at the centroid of each individual polygon. Area Table (AT) (defun c:totalarea (/ ss i ent area totalarea)

Speed Up Your Workflow: The Ultimate Guide to Total Area AutoCAD LISP Routines

This is a widely used and reliable routine for summing the areas of various closed objects. Autodesk Community, Autodesk Forums, Autodesk Forum Capabilities : Calculates the total area of selected How to Use AreaM.lsp code into a text file and save it with a extension. Drag and drop the file into your AutoCAD window or use the

Many LISPs allow for converting units (e.g., from square inches to square feet or square meters). If your design workflow shifts constantly, look into

(defun c:TotalArea ( / ss i ent area total pt textHeight) (vl-load-com) (setq total 0.0) ;; Prompt user to select closed objects (princ "\nSelect closed polylines, circles, splines, or hatches: ") (if (setq ss (ssget '((0 . "POLYLINE,LWPOLYLINE,CIRCLE,HATCH,SPLINE,REGION")))) (progn ;; Loop through selection set (repeat (setq i (sslength ss)) (setq ent (ssname ss (setq i (1- i)))) ;; Get the area using Visual LISP extensions (setq area (vl-catch-all-apply 'vlax-get-property (list (vlax-ename->vla-object ent) 'Area))) ;; If area exists, add it to the running total (if (not (vl-catch-all-error-p area)) (setq total (+ total area)) ) ) ;; Print the final total to the AutoCAD Command Line (princ (strcat "\nTotal Calculated Area: " (rtos total 2 2))) ;; Optional: Place the total area text into the drawing (initget "Yes No") (if (= "Yes" (getkword "\nPlace total area text in drawing? [Yes/No] : ")) (progn (setq pt (getpoint "\nClick insertion point for the text: ")) (setq textHeight (getvar "TEXTSIZE")) (command "_text" pt textHeight 0 (strcat "Total Area: " (rtos total 2 2))) ) ) ) (princ "\nNo valid closed objects selected.") ) (princ) ) (princ "\nType 'TotalArea' to run the routine.") (princ) Use code with caution. Step-by-Step Installation Guide

: Most "Total Area" scripts use commands like TAREA , AREAM , or QSTA .

The following LISP routines represent the gold standard in the community, ranging from simple cumulative calculators to advanced field-based applications.

Before celebrating the power of LISP, it is crucial to understand what AutoCAD offers out-of-the-box. The native AREA command is robust but flawed for large-scale calculations.