If you’ve ever spent an afternoon clicking through dozens of closed polylines, manually adding their areas in a calculator, you know the frustration of AutoCAD’s default AREA command. While functional for a single room or shape, it’s a productivity killer for large-scale projects like site plans, floor area ratios, or material takeoffs.
If a polyline crosses over itself like a figure-eight, AutoCAD may return an error or an incorrect value.
g., converting square millimeters to square meters) or to export the results directly to a text file? total area autocad lisp
You don't need to be a programmer to use LISP. Here is a classic, lightweight code snippet that calculates the sum of all selected closed objects.
Ensure all objects are flattened to a 0 elevation. Objects with varying "Z" values can sometimes cause geometric calculation errors. Conclusion If you’ve ever spent an afternoon clicking through
Mastering Total Area Calculation in AutoCAD: The Power of LISP
Automatically convert square inches to square feet or square meters. Ensure all objects are flattened to a 0 elevation
Only calculate areas for objects on a specific layer (e.g., "G-AREA-BNDY").
LISP routines usually cannot calculate the area of an "open" polyline. Use the PEDIT command to close your boundaries before running the script.
Many scripts will automatically place a text label with the final sum directly into your drawing.