Total Area Autocad Lisp !full! Today

Drag a selection box over the closed shapes you want to measure. Press to confirm your selection.

Here is a basic Lisp routine to do this:

(defun c:TArea (/ ss i totalArea ent obj) (vl-load-com) (setq totalArea 0) (if (setq ss (ssget '((0 . "LWPOLYLINE") (70 . 1)))) ; Selects closed LWPolylines (progn (setq i 0) (repeat (sslength ss) (setq ent (ssname ss i) obj (vlax-ename->vla-object ent) totalArea (+ totalArea (vla-get-area obj)) i (1+ i) ) ) (princ (strcat "\nTotal Area: " (rtos totalArea))) ) (princ "\nNo closed polylines selected.") ) (princ) ) Use code with caution. How to use this code: Open Notepad and paste the code above. Save as TotalArea.lsp . Load in AutoCAD via APPLOAD . Type TArea to run. 5. Pro Tips for Total Area LISP Users

If you always work in millimeters but need the output in square meters, you can modify the output line of the LISP code. Locate this line in the script: (princ (strcat "\n Total Area : " (rtos totalArea 2 4))) Use code with caution. Change it to divide by 1,000,000 and append a suffix: total area autocad lisp

;; For objects that need conversion (lines, arcs) ((member obj-name '("LINE" "ARC")) (princ (strcat "\nConverting " obj-name " to region for area calculation...")) (command "._REGION" obj "") (if (setq region-ent (entlast)) (progn (command "._AREA" "_O" region-ent) (setq area (getvar "AREA")) (if (> area 0) (progn (setq total-area (+ total-area area)) (setq obj-list (cons (list obj-name area) obj-list)) ) ) (command "._ERASE" region-ent "") ; Clean up temporary region ) (princ (strcat "\nFailed to convert " obj-name " to region")) ) )

To convert square millimeters to , divide the final result by 1,000,000 . Modifying the Script for Automatic Conversion

Many routines, such as those discussed on AutoCAD Forums , can automatically place text labels showing the area of each individual object or the grand total within the drawing. Drag a selection box over the closed shapes

For those who require the calculated area to remain dynamically linked to the drawing, field-based LISPs are the ultimate solution. Lee Mac, a renowned figure in the LISP community, provides two exceptional programs:

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.

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. "LWPOLYLINE") (70

: For detailed surveying, this command splits polygons into triangles and provides a table showing the calculation for each. Autodesk Community, Autodesk Forums, Autodesk Forum Core Logic: How the LISP Works

If you need help adjusting this tool for your specific drawing standards, please share:

Automatically displays the final tally in your command line or inserts it directly into your drawing as text.

Always check if the LISP is calculating in inches, feet, or millimeters based on your drawing setup.