Convert OVL to GVN

Understanding OVL and GVN file formats

OVL files are typically overlay files used in various software applications, especially in gaming and mapping. They often contain additional data, such as graphics, maps, or code overlays, that extend the functionality of the main program. The structure and content of OVL files can vary significantly depending on the software that created them.

GVN files, on the other hand, are much less common and are usually associated with Garmin MapSource or other navigation software. These files may contain geographical vector data or navigation information used by GPS devices or mapping applications.

How to convert OVL to GVN

Direct conversion from OVL to GVN is not widely supported due to the proprietary and varied nature of OVL files. The process typically involves extracting the relevant data (such as map overlays or vector information) from the OVL file and then importing or converting it into a format compatible with GVN or Garmin navigation software.

Recommended software for conversion

The best approach is to use GPSMapEdit, a versatile tool for working with various map formats. Here’s how you can attempt the conversion:

• Open GPSMapEdit.
• Use File → Open to load your OVL file (if supported).
• Edit or extract the map data as needed.
• Export the map using File → Save As and select a Garmin-compatible format (such as MP or IMG).
• Use Garmin MapSource or MapConverter to import the exported file and save it as a GVN file if required.

If your OVL file is not supported directly, you may need to convert it to an intermediate format (like SHP or KML) using GIS software such as QGIS, and then proceed with the steps above.

Tips and considerations

• Always back up your original OVL files before attempting conversion.
• Check the documentation of your specific OVL file to understand its structure.
• Some manual editing or data cleaning may be required for accurate conversion.

Summary

While there is no one-click solution for converting OVL to GVN, using tools like GPSMapEdit and Garmin MapSource can help you extract and reformat map data for use in Garmin navigation systems.