--- title: "NavVis IVION Add-In for Autodesk® Revit" slug: "navvis-ivion-add-in-for-revit" updated: 2025-09-23T14:47:33Z published: 2025-09-23T14:47:33Z --- > ## Documentation Index > Fetch the complete documentation index at: https://knowledge.navvis.com/llms.txt > Use this file to discover all available pages before exploring further. # NavVis IVION Add-In for Autodesk® Revit The Add-In for Revit connects a Revit project to a Site. Use the add-in to: - Create BIM models faster. - Compare as-built with as-is. - Spot differences visually. - Verify measurements remotely. - Collaborate with stakeholders online. ![](https://cdn.document360.io/bf174766-fa1a-4fe1-a4d7-b1db1e7cb996/Images/Documentation/navvis-ivion-add-in-for-revit-image-mpqad24d.png) ## Installing the Revit Add-Ins ### Procedure 1. Make sure you have installed Revit from Autodesk's website. 2. Go to the Autodesk App Store and download [NavVis Revit Add-In](https://apps.autodesk.com/RVT/en/Detail/Index?id=5489279304951773635&appLang=en&os=Win64&autostart=true). 3. Create an Autodesk account and sign in. 4. When the Add-ins finish downloading install them. After the installation is finished you will see a tab called NavVis IVION in the Revit menu bar. ## Connecting to NavVis IVION Before connecting to NavVis IVION from your Revit project, make sure that an accurate Site Model exists in the NavVis IVION site. ### Procedure 1. Open your Revit project. 2. Click on **NavVis** > **Settings**. ![](https://cdn.document360.io/bf174766-fa1a-4fe1-a4d7-b1db1e7cb996/Images/Documentation/navvis-ivion-add-in-for-revit-image-1kubobml.png) 3. Enter the root URL instance address, for example `https://hq.iv.navvis.com/`, without any additional parameters. > [!NOTE] > **Note:** sign in with a global admin account to ensure the add-in has full permissions. 4. Click **Connect**. If the connection succeeds, the tab **Coordinate System** opens. 5. Continue by selecting an existing coordinate system transformation or by creating a transformation. ## Connecting to your local NavVis IVION Instance with NavVis Revit Add-Ins Prerequisites: - Make sure your Hosted NavVis IVION instance is running on the same Local Network as your Windows workstation. - Revit is Installed on your Windows workstation. - NavVis IVION Instance running Docker/Ubuntu Workstation. ### Procedure 1. Go into your Ubuntu Workstation Network settings and locate the IP address. (Option: Open Terminal and type in **hostname -I**) 2. Click the button next to the active connection for the IP address and to display other details. 3. Note the IP address. 4. On your Windows Workstation Open your Revit project. 5. Click **NavVis**> **Settings**. 6. Enter the NavVis IVION base URL instance address (Use the IP address from the Ubuntu workstation for example **http://xxx.xxx.xx.xx:8083/iv**). 7. Click **Connect**, If the connection succeeds, the tab Coordinate System opens. > [!NOTE] > **Note:**If the connection fails, check that your local instance keys for the API are up to date ## Using an Existing Transformation The Add-in for Revit uses a coordinate system transformation to understand how the data in the two programs fit together. If your Revit project uses the same coordinate system as your site or you have pre-defined transformations, you can select an existing transformation. Otherwise, create a transformation. ### Procedure 1. In Revit, go to **NavVis**> **NavVis IVION Settings** > **Coordinate System**. 2. Select a site from the **Site** drop-down menu. 3. Check the check box **Use an existing transformation**. 4. If your Revit project uses the same coordinate system as your site, select the option **Site** from the drop-down menu. 5. If you want to use a transformation that you have previously created, select the desired option from the drop-down menu. 6. Click **Apply**. ## Creating a Transformation To create a coordinate system transformation, you should either already have a model or open the Point cloud of the site which you are going to model. Check that the floor levels defined in Revit are at the correct heights of the point cloud. Follow these steps to transform the data in both programs to the same coordinate system. ### Procedure 1. Create two points of interest (POIs) in to serve as tie points. 1. Choose two corners on the same floor, but on opposite sides of the selected building. 2. Place the POIs on the floor of the point cloud. 3. Give them a recognizable name. 2. In Revit, select a floor plan which corresponds to the floor where the two POIs are located in . 3. Open **NavVis** > **NavVis IVION** **Settings** > **Coordinate System**. 4. Select a site from the **Site** drop-down menu. 5. Select the building corresponding to your current Revit model from the **Building** drop-down menu. The options are based on the Site Model defined in . 6. Select the correct POIs as tie points from the respective drop-down menus. If the POIs do not appear here, you may need to re-connect to in order to refresh it. 7. Click the **Pick** button for the first tie point. 8. Click on the location on the top view that corresponds to the location of the point of interest. 9. Repeat the two previous steps for the second tie point. 10. Click **Calculate Transformation**. The add-in calculates the transformation matrix (translation and rotation). 11. Click **Apply**. ![](https://cdn.document360.io/bf174766-fa1a-4fe1-a4d7-b1db1e7cb996/Images/Documentation/image-1706274211559.png) > [!NOTE] > **Note:**You get feedback about the accuracy of the transformation. This number is the distance between the POIs minus the distance between the points you picked on the floor plan. If the difference is larger than 0.05 m, try picking the points again. Now that you have created a transformation, save it to the connected instance. You can start using the add-in to help you work with your Revit model. ## Saving a Transformation to the Instance ### Procedure 1. Enter a name for the transformation and click **Save to NavVis IVION**. You will see a pop-up window asking you to log in. 2. Enter the administrator credentials for the instance and click **Log in**. The add-in saves the transformation in the instance. ## Finding a Location in NavVis IVION Once you are connected to a site and have your transformation set up, you can find any location in NavVis IVION directly from your Revit model. ### Procedure 1. Click on **NavVis** > **Locate**. 2. Click on a location on the floor plan. NavVis IVION shows that location in a separate window and you can see a panorama image of the real building. ## Taking a Measurement in NavVis IVION ### Procedure 1. Find the location where you need to take a measurement in the site. 2. Select **Show point cloud** from the **View** menu in . We recommend setting the point cloud quality to **High quality** and adjusting the point size until you feel you can see what you are doing. 3. Use the measurement tool to take a measurement in . ![](https://cdn.document360.io/bf174766-fa1a-4fe1-a4d7-b1db1e7cb996/Images/Documentation/navvis-ivion-add-in-for-revit-image-hd6mw5bx.png) ## Exporting DXF Floor Plans If you are exporting DXF floor plans to use in your connected NavVis IVION site, the add-in can save you work on geo-registering them. ### Procedure 1. Save the transformation to the site. 2. Export your floor plans in DXF format using meters as the unit. 3. Clean up the floor plans. 4. Remove annotations and explode unsupported geometries in AutoCAD or another CAD program. 5. When importing the plans to NavVis IVION, start typing the name of the saved transformation in the field **Source Coordinate System** and select your transformation. The plans will appear in the correct location after the upload finishes. ## More information For more information on using the Revit add-in, refer to the following resources: - The [help document](https://urldefense.com/v3/__https:/apps.autodesk.com/RVT/en/Detail/HelpDoc?appId=5489279304951773635&appLang=en&os=Win64__%3b%21%21CqVFughQ-RE%211ZyzDZwORxxI6nGefNFv6V3ZBgTT7Js8bkgKN8VwDsI3-duOhD7EWETEbNz6IiF0pceEMlk$) in Autodesk's marketplace. - The [video tutorial](https://urldefense.com/v3/__https:/www.youtube.com/watch?v=i7UbyvcHoxc&feature=youtu.be__%3b%21%21CqVFughQ-RE%211ZyzDZwORxxI6nGefNFv6V3ZBgTT7Js8bkgKN8VwDsI3-duOhD7EWETEbNz6IiF0f64Af2s$)on Youtube --- ### FAQ #### What is the purpose of the Add-In for Revit? The Add-In for Revit connects a Revit project to a Site, allowing users to create BIM models faster, compare as-built with as-is, spot differences visually, verify measurements remotely, and collaborate with stakeholders online. #### How do I install the Revit Add-Ins? To install the Revit Add-Ins, ensure Revit is installed, download the NavVis Revit Add-In from the Autodesk App Store, create an Autodesk account, sign in, and install the downloaded Add-ins. #### What should I do if the connection to NavVis IVION fails? If the connection fails, check that your local instance keys for the API are up to date. #### Can I use an existing transformation in the Add-In for Revit? Yes, if your Revit project uses the same coordinate system as your site or you have pre-defined transformations, you can select an existing transformation. #### Is it necessary to create a transformation for the Add-In to work? If your Revit project does not use the same coordinate system as your site and you do not have pre-defined transformations, you will need to create a transformation. #### How can I take measurements in NavVis IVION? To take measurements in NavVis IVION, find the location where you need to measure, select 'Show point cloud' from the View menu, and use the measurement tool. #### What format should I use when exporting DXF floor plans? When exporting DXF floor plans, use meters as the unit. #### Where can I find more information about using the Revit Add-In? More information can be found in the help document in Autodesk's marketplace and in the video tutorial on YouTube. Site refers to a complex of one or more buildings displayed in a NavVis IVION instance. For example, the Munich Airport would be one site. An instance can contain multiple sites. Each site consists of one or more datasets. Building Information Modeling A site model is a three-dimensional model which clusters information by assigning meaningful names to clearly defined areas in the space of a site. With a site model, you can define and name the buildings, floors, rooms, or even more fine-grained spaces, of a site in NavVis IVION. Among other things, this information is used to create the floor changer and enrich POI search. A NavVis IVION instance is a copy of the NavVis IVION software running on a hosting server. An instance has a database which contains the associated datasets, users, and more. That data is accessible via the instance URL. Application Programming Interface A three-dimensional representation of an environment, made up of many points. A point is defined by x, y and z coordinates, and it may or may not contain RGB, an intensity value, and normals. Point Of Interest Computer Aided Design