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Total Area Autocad Lisp [extra Quality]

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January 29, 2022
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Total Area Autocad Lisp [extra Quality]

While AutoCAD's native AREA command allows for "Add Area" functionality, it can be tedious for large numbers of objects. Below are the best ways to achieve a complete "Total Area" feature. 1. Built-in "Quick" Methods (No LISP Required)

If you tell me your (e.g., exporting to Excel, adding areas of different layers, or just simple labeling), I can recommend the exact script or code snippet you need.

If you aren't ready to write your own code, there are powerful pre-made tools available: TotalLength + / TotalArea : This popular plugin from the Autodesk App Store

Save the LISP code provided in a text file with a .lsp extension (e.g., TotalArea.lsp ). In AutoCAD, type and press Enter. Locate your .lsp file and click Load . Steps to Use (General Workflow): total area autocad lisp

The native AutoCAD AREA command is powerful for measuring individual or sequential areas, but it falls short when you need a simple, dynamic sum of a selection set. Relying on mental math, a separate spreadsheet, or the clunky addition function within the AREA command adds unnecessary steps and introduces a significant risk of error.

Using these routines is straightforward, even if you are not a programmer. Steps to Load:

All advanced area summation relies on good drawing practices. The most sophisticated LISP routine cannot organize a chaotic drawing. Using distinct, logical for different types of objects (e.g., "A-FLOR-SUB" for subfloor areas, "A-FLOR-STR" for structural floors, "A-FLOR-FIN" for finished flooring) is the foundation upon which automated takeoffs are built. This allows your LISP scripts to filter selections by layer, providing immediate, categorized breakdowns of total areas. While AutoCAD's native AREA command allows for "Add

;; Alternative: Quick total area with selection window (defun C:TAQ ( / ss total area obj) (setq ss (ssget '((0 . "CIRCLE,ARC,ELLIPSE,LWPOLYLINE,POLYLINE,REGION,HATCH")))) (setq total 0.0) (if ss (repeat (setq i (sslength ss)) (setq obj (vlax-ename->vla-object (ssname ss (setq i (1- i))))) (if (vlax-property-available-p obj "Area") (setq total (+ total (vla-get-area obj))) ) ) ) (princ (strcat "\nTotal Area = " (rtos total 2 2))) (princ) )

| Command | Description | |---------|-------------| | TA | Main command - calculates total area with options | | TAQ | Quick total area (command line only) | | TAP | Total area of polylines only |

More importantly: I never second-guess my area totals again. No manual math errors. No missing a polyline behind a hatch. Built-in "Quick" Methods (No LISP Required) If you

Isolate the layer containing your area shapes before running the LISP to make selecting easier.

By default, AutoCAD’s MEASUREGEOM or AREA commands require you to select points or objects one by one. A custom LISP routine offers several advantages:

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