Total Area Autocad Lisp !!hot!! Review
: 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
AutoCAD is a powerful computer-aided design (CAD) software that is widely used by architects, engineers, and designers to create detailed 2D and 3D models. One of the most common tasks in AutoCAD is calculating the total area of a drawing, which can be a tedious and time-consuming process if done manually. Fortunately, AutoCAD provides a powerful tool called Lisp (Lisp programming language) that can be used to automate this task.
;; Alternative: Area of polylines only (with option for multiple selections) (defun C:TAP ( / ss total) (setq ss (ssget '((0 . "LWPOLYLINE,POLYLINE")))) (setq total 0.0) (if ss (repeat (setq i (sslength ss)) (setq total (+ total (vla-get-area (vlax-ename->vla-object (ssname ss (setq i (1- i))))))) ) ) (princ (strcat "\nTotal Polyline Area = " (rtos total 2 2))) (princ) )
;; Initialize total area (setq total 0.0) (setq cnt 0)
AutoLISP routines for "Total Area" are custom scripts designed to automate the calculation and summation of areas from multiple objects within AutoCAD. While standard AutoCAD commands like AREA allow for manual summation, LISP routines significantly reduce repetitive manual entry and minimize potential human errors. total area autocad lisp
Do you have a specific requirement for your total area Lisp (e.g., export to CSV, subtract voids, or add prefixes)? Write a comment below or modify the code as shown in Part 4 – the power of open-source Lisp is that it is infinitely customizable.
Generating area tables within AutoCAD or exporting calculations directly to Microsoft Excel for project reporting. Popular LISP Commands for Total Area
In AutoCAD, type the command APPLOAD . Locate your .lsp file, select it, and click "Load".
Have a specific total area calculation challenge? Modify the LISP to fit your exact workflow, and you’ll wonder how you ever drafted without it. : For detailed surveying, this command splits polygons
After the tenth time doing this dance, I wrote a 15-line LISP that does it automatically.
Save the file with the exact name TotalArea.lsp . Make sure the extension is .lsp and not .txt . Step 2: Load into AutoCAD Open your drawing file in AutoCAD. Type in the command line and press Enter .
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.
The LISP requires closed polylines or regions. If a polyline is open, the area will not be calculated. Fortunately, AutoCAD provides a powerful tool called Lisp
: Places text at the geometric center of selected objects or a bounding box center for multiple items.
Below is a robust, clean AutoLISP script designed to calculate the total area of selected closed objects. It supports circles, hatches, ellipses, regions, and closed polylines.
For more advanced automation, consider combining these scripts with boundary detection ("boundary" command) to calculate areas even when shapes aren't initially polyline-based. If you're looking to automate, let me know:
Read the total area printed in your command history, or follow the prompt to click and place the text label on your canvas. How to Make the LISP Permanent