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. 
  - Select 'Generate Analysis Report' to automatically generate a PDF report. The PDF report will be created in the 'Result Plotting' directory within your output directory after the analysis is completed.
  - 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 : 

Click on the 'Review' button and use the slider to navigate up and down. Check the results using the color-coded point cloud and the graphs representing the analysis. Alternatively, you can review the analysis PDF report and GIF file, which are created in the 'Result Plotting' directory within the Output directory.