Area Object Link (AOL)

Area Object Link (AOL)



Area Object Link (AOL) is an add-in app coded entirely using AutoLISP®/Visual LISP® offering 100% Autodesk® AutoCAD® compatibility. AOL provides a graphic user interface (GUI) adding 4 new & powerful commands to facilitate the implementation of Fields but bypassing the complexity of the Fields GUI.


AOL Area Object Commands:

  1. Link - simplifies steps needed to Link the Area value of already drawn Circles, Ellipses, Hatches, Plines or Regions as Fields to already placed Attribute, MText or Text.
  2. Insert - proceeds to insert a pre-built AOL Block and then links using Fields the Attributes to already drawn Circles, Ellipses, Hatches, Plines or Regions' Area value.
  3. Show - allows the user to select an Attribute, MText or Text with Fields to show the object(s) highlighted & shaded that have linked Area values.
  4. Update - gives the user the option to select pre-built AOL Block, Attribute, MText and Text objects with Fields that contain linked Area values updating them to match the current AOL Option settings.


AOL Option Settings:

  • Both Imperial (1 unit = 1 Foot or Inch) & Metric (1 unit = 1 Meter, Decimeter, Centimeter or Millimeter) drawing units are supported.
  • The Area value can be measured both in Imperial units (Square Feet, Square Inch, Square Yard, Square Mile or Acre) & in Metric units (Square Meter, Square Centimeter, Square Millimeter, Hectare or Square Kilometer). You can also enter a custom area measuring Factor.
  • You can select various Insertion Scale Factors, Rotation Angles, choose to add a Suffix to the Area's value such as SF or SM and show the Area value formatted to a given decimal Precision using Dot or Comma or Rounded Up or Down.

About This Version

Version 4.1.0, 3/27/2024
Added 2025 support.

Screenshots and Videos

Customer Reviews

8 reviews
Get Technical Help
  • add current precision to value formatting
    tung nguyen | January 25, 2024 Verified Download (What's this?)

    this plugins work perfectly but could you add current precision to value formatting because sometimes i need to change all the attribute (i created ) value precisions to more or less zeros

    Paul Li (Publisher) | January 26, 2024

    I'm glad the AOL app is working out for you. You should be able to select a different precision under the "Precision" section on the lower left hand corner of the app window before "Inserting" the AOL Block Attribute. After "Inserting" the AOL Block Attributes if they all have the same formatting (scale & suffix) and you want to change their precision format, you can select under the "Area Object Commands" section on the top right hand corner the "Update" radio button then on the drop down list choose "All AOL Blks". Then select a different "Precision" and after clicking "OK", all the previously inserted AOL Blocks precision values will be updated to match.

    Nguyễn Sơn Tùng | March 23, 2024

    sorry for misunderstanding. I mean i just need the area field follow the current precision or current units so i can quickly change the number of the zeros by change the units setup

    Paul Li (Publisher) | March 26, 2024

    Unfortunately, the app currently does not have an option to select precision/unit values to match with the current precision/units value. Perhaps this option is something that can be added in a future release. Thanks again for your interest in the AOL app.

  • The program is great but it hasn't been working for a week
    M. U. | November 10, 2023 Verified Download (What's this?)

    Hello, the program is of high quality and useful, I enjoy using it. However, the program has not been working for a week and gives the following error. I deleted and reinstalled, but it didn't help. Can you help me?

    Command: AOL
    Start Command [AOL]    to Link Attribute/MText/Text to Area Boundary...
    ..and Command [AOLSET] to Change Default Settings.; error: Exception occurred: 0xC00000FD (Stack Overflow)
    ; warning: unwind skipped on exception
    ; error: Exception occurred: 0xC00000FD (Stack Overflow)

    Command: AOLSET
    ; error: Exception occurred: 0xC0000005 (Access Violation)
    ; warning: unwind skipped on exception
    ; error: Exception occurred: 0xC0000005 (Access Violation)

    Paul Li (Publisher) | November 14, 2023

    First of all thanks for downloading and using AOL. But what you’re experiencing could be related to something more serious. You may want to back up your data before going any further. Please review this link for possible solutions:

  • very useful. great lsp
    Mark Allan Estrada | October 05, 2021 Verified Download (What's this?)

    very useful. great lsp

    Paul Li (Publisher) | October 06, 2021

    Thank you...glad you can make good use of this app.

  • Help.
    Tan Nhat | July 21, 2021 Verified Download (What's this?)

    Great! It took me a lot of work to do this manually. you can add option about decimal separator. in my country use comma instead of period. thanks

    Paul Li (Publisher) | July 22, 2021

    Glad this saved you lots of work....I may consider adding the comma option as the decimal separator in future versions.

    Paul Li (Publisher) | September 03, 2021

    Version 4.1.0 released on September 3, 2021 added the comma option as a decimal separator.

  • Exactly what I wanted!
    Andrea Harris | April 27, 2018 Verified Download (What's this?)

    This is a graeat Lisp routine to relink a field, thank you.

    Paul Li (Publisher) | July 12, 2022

    Thank you...glad this is helpful for you.

  • Spectacular !!!!
    Daniel Moraes | March 28, 2018 Verified Download (What's this?)

    Very, very usefull . Save us a tons os hours !!!! Thanks !

    Paul Li (Publisher) | July 12, 2022

    Thank you...glad this is beneficial for you.

  • more personalization
    harinezumi 針鼠 | January 22, 2017 Verified Download (What's this?)

    I like most the link function (I use mtexts). But I need more personalization: I work in cm and I need area in sqm, and this can't be done. Thank you anyway

    Daniel Moraes | March 28, 2018

    I had de same issue. In the lisp file, find de line %<\AcObjProp.16.2 Object(%<\_ObjId 681176416>%).Area \f "%lu2%pr2%ct8[1.000000000000000E-006]%th44">% e change de value 1.000000000000000E-006 to 0.0001. This changes de value of the Conversion Factor inside Field Additional Format to 0.0001. It Works.

    harinezumi 針鼠 | April 04, 2018

    Dear Daniel, thank you for yout work-around but I also use drawings in m and mm, so changing the lisp is not a solution for me

    Paul Li (Publisher) | June 10, 2021

    harinezumi, this feature has been added in version 4.0.0. Please download the latest and give it a try.

  • Bonne application
    AZZEDDINE ELHACHIMI | December 12, 2014 Verified Download (What's this?)

    Comment peut-on obtenir le AOL.lsp?

    Paul Li (Publisher) | October 04, 2021

    AOL.lsp can be downloaded here from the App Store. Click on the blue Download button located under Free on top right column.

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