If you receive a drawing from a surveyor or civil engineer and open it on a machine that doesn't have Civil 3D or Land Desktop installed, you will often get a dialog box saying:
aeccland.shx is the compiled version. It works alongside a related linetype definition file, aeccland.lin , which contains the actual linetype instructions. The .lin file references specific shapes inside the .shx file to draw linetypes that can automatically place symbols, such as trees or fence posts, along a line without breaking it into separate pieces.
When you open a drawing (DWG) created in Civil 3D on a computer that only has "plain" AutoCAD , the software cannot find the reference. This results in:
Standard AutoCAD does not include this file by default. When a Civil 3D user shares a drawing with a standard AutoCAD user, the receiving software cannot find the file, triggering an error. Why the Missing aeccland.shx Error Occurs aeccland.shx
for fonts, this specific file is often linked to linetype definitions. Autodesk Community, Autodesk Forums, Autodesk Forum Common Technical Issues Opening a drawing that references aeccland.shx without having the file installed typically results in: Missing SHX Dialog
Solution 1: Download and Install Civil 3D Object Enablers (Recommended)
: It is often located in the support folders of older installations, such as C:\Program Files\Land Desktop 2005\Support Where to put it If you receive a drawing from a surveyor
When the missing SHX warning appears, AutoCAD offers a substitution dialog. You can manually choose a replacement:
A consultant or client sent you a drawing but forgot to include the custom shape dependencies. How to Fix the Missing aeccland.shx Error
Sometimes, it is not just aeccland.shx that is missing. For full compatibility, especially when using site-specific drawings from Carlson Software or older Land Desktop projects, you may need a set of files: The ASCII shape definition file. aeccland.shx: The compiled shape file (binary). aeccland.lin: The linetype definition file. Best Practices to Avoid Missing SHX Files When you open a drawing (DWG) created in
Because Land Desktop is no longer supported or installed on most modern systems, these files are often missing, causing AutoCAD to display an error message whenever it attempts to load a drawing that references them.
The AECCLAND.SHX file is a mysterious and often overlooked component of computer-aided design (CAD) software, particularly in the architecture, engineering, and construction (AEC) industries. Despite its seemingly obscure nature, this file plays a crucial role in ensuring the accuracy and efficiency of CAD designs. In this article, we will delve into the world of AECCLAND.SHX, exploring its purpose, functionality, and significance in the realm of CAD software.
. Options include:
Always ensure you're working with compatible versions of files and software. Using files across significantly different versions of AutoCAD can sometimes lead to compatibility issues.