Hello Igor,
Yes, you can easily achieve this by setting the image fill style for the drawing view background of the diagram. You can use any raster image for the diagram background fill style.
You can also generate your map images by using the Nevron Diagram Map Import functionality and then the Diagram Image Export.
Take a look at the following Whitepaper: Nevron Diagram for .NET Map Import - Using Maps in Diagrams
By using Nevron Diagram Maps, you will also be able to set the map in different layer of the diagram, allowing control over the map behavior and interactivity.
If you have any questions or comments, please feel free.
Kind regards,
Nevron Support Team
Best Regards,
Nevron Support Team