Deviation nSpector - Compare Point Cloud Deviation

Deviation nSpector - Compare Point Cloud Deviation

Win64, English

Automate your Quality Control of Scan to BIM & VDC processes. Deviation nSpector is a one-of-its-kind plugin that allows you to map and find deviation of modelled BIM from Lidar scanned Point Cloud

General Usage Instructions

Deviation nSpector allows you to map and rectify Point Cloud Deviation in your BIM Model. 

Steps for the usage of the same. 

Step 1: 

If you are installing this for the very first time, there is an option for the trial version of 30 days available with the plugin 

Step 2: 

Click on the Run Analysis button, the user will be presented with a UI requesting the following details: 

  • Limits: Define limits for comparison and their respective colors to represent the results. 
  • Select Point Cloud: The user is asked to select the loaded point cloud with which the deviation to the model is to be done. 
  • Results path: Select the location to store results, initially default document location is considered,(make sure there is 3 times the space available at the selected location with respect to the selected point cloud file size )  
  • Advanced comparison option:
    - Select Compare Only Visible Elements to analyse visible elements only. 
    - Sected Compare Link Model to analyse linked models.
    - Select Process Selected Elements to prcoess only selected elements.
    - Select Process Section Box Region Elements to process elements inside the section region.

Step 3: 

Click on Analyze deviation button and wait till the program computes the deviation.

Step 4 : 

Review the results using the color-coded point cloud and the graphs generated representing the results. 



The installer that ran when you downloaded this app/plug-in from the Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin.

To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, click Control Panel > Programs > Programs and Features (Windows 10/11) and uninstall as you would any other application from your system.

Additional Information

Known Issues


Company Name: nCircleTech
Support Contact:

Author/Company Information


Support Information

Version History

Version Number Version Description


In this version, we've introduced support for scans located far away from the origin. Additionally, users now have the option to select colors for OutOfBound points. Furthermore, default limit values have been adjusted to 20, 30, and 50 mm for the first, second, and third limits respectively.


Added new feture where user can check the quality (QC) of only selected elements or the selected section. Also user can analyse linked model. These is the optimized version with fast processing.


- Bug fixes for processing analysis in new document


- Added support for Help on F1, button description - Added offline support of 12 hours for Entitlement API


Initial Release

Initial Release
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