Convert PRC to KML

Understanding prc and kml file formats

PRC files are typically associated with eBook formats used by Palm devices, but in the context of 3D modeling and GIS, PRC can also refer to the Product Representation Compact format. This 3D file format is commonly embedded in PDF documents for representing complex 3D models. On the other hand, KML (Keyhole Markup Language) is an XML-based format used for displaying geographic data in Earth browsers like Google Earth and Google Maps. Converting PRC (3D model) files to KML is useful for visualizing 3D objects in a geospatial context.

How to convert prc to kml

Direct conversion from PRC (3D model) to KML is not straightforward, as these formats serve different purposes. However, you can use a two-step process:

1. Extract the 3D model from the PRC file, often by exporting it to a more common 3D format such as OBJ or DAE (Collada).
2. Convert the extracted 3D model to KML or KMZ using specialized GIS or 3D software.

Recommended software for prc to kml conversion

• Autodesk 3ds Max or Autodesk Fusion 360: Import the PRC file (if supported) and export to a common 3D format like OBJ or DAE.
• Blender: Import the intermediate 3D format (OBJ/DAE), then use the Google Earth Exporter add-on to export as KML/KMZ.
• FME (Feature Manipulation Engine): A professional GIS tool that can automate the conversion from 3D formats to KML/KMZ.

Step-by-step conversion process

1. Open your PRC file in a 3D modeling tool that supports PRC import (such as Autodesk software).
2. Export the model to File → Export → OBJ or File → Export → DAE.
3. Open the exported file in Blender or FME.
4. In Blender, install the Google Earth Exporter add-on if needed.
5. Export the model as File → Export → KML/KMZ.

Tips and considerations

• Ensure your 3D model is georeferenced if you want it to appear in the correct location in Google Earth.
• Some data or model details may be lost during conversion due to format differences.
• For batch conversions or automation, FME is the most robust solution.