How to Import Google Earth into AutoCAD?

Understanding the Compatibility of Google Earth and AutoCAD

Transferring data from Google Earth to AutoCAD can enhance your design projects by incorporating geographical information. However, a direct import of KML/KMZ files into AutoCAD is not natively supported in the software. To achieve this, users must utilize conversion tools or follow specific procedures.

Converting KML/KMZ to AutoCAD-Compatible Formats

To import data from Google Earth, consider converting KML or KMZ files into a format that AutoCAD recognizes, such as SHP (shapefile) or DWG. Here’s how to do it:

1. Online Conversion Tools:

   • Search for reliable online converters that allow KML/KMZ to SHP conversion.
   • Upload your KML file and initiate the conversion.
   • Download the converted shapefile, which can then be imported into AutoCAD.
2. Third-Party Plugins:
   • Explore the Autodesk App Store for plug-ins specifically designed for importing KML/KMZ files.
   • Follow the installation instructions provided and use the plug-in to import your data.

Importing an Image from Google Earth into AutoCAD

If you want to superimpose Google Earth imagery onto your AutoCAD project, you can do so by following these steps:

1. Navigate to the Insert Tab:

   • Open AutoCAD and select the “Insert” tab on the ribbon.

2. Attach External Reference:

   • Click on the Reference panel and choose the “Attach” option.
   • A dialog will open prompting you to select the desired image file.
3. Configuring Attachment Options:
   • Choose the file you wish to attach and click “Open.”
   • In the dialog box labeled “Attach External Reference,” select “Overlay” under the Reference Type.

Scaling Google Earth Imagery

For precise integration, scaling the imported imagery is often necessary:

1. Determine the Reference Scale:

   • Identify a known dimension within your drawing that can serve as a scaling factor.
2. Adjusting the Scale:
   • Use the “Scale” command in AutoCAD.
   • Select the image you imported and specify the base point and the scale factor based on your reference dimensions.

Importing Topographical Data to AutoCAD

1. Linking CAD Files:

   • Navigate to the “Insert” tab and choose either “Link CAD” or “Import CAD.”
   • Browse and locate your topographical data file originating from AutoCAD.
2. Creating a Topo Surface:
   • Access the “Massing and Site” tab.
   • Select “Topo Surface” and click on “Create from Import.”
   • Choose the imported topographical file to generate a topo surface in your drawing.

Exporting DWG Files to Google Earth

The process of exporting your DWG files to Google Earth involves several steps:

1. Command Input:

   • Enter MAPEXPORT in the AutoCAD command line to access export options.

2. Selecting Export Format:

   • In the dialog box, choose the Google KML file format.
   • Specify the export location for your files.
3. Object Selection:
   • On the Selection tab, indicate which objects you want to export.
   • Complete the export process by following the prompts.

Distinguishing KML and KMZ Files

Understanding the differences between KML and KMZ is vital for file management:

• KML Files: These are uncompressed XML files storing geographic data.
• KMZ Files: These are zipped versions of KML files, often containing images or additional resources, making them more compact for storage.

FAQ

1. Can I directly import KML files into AutoCAD?
No, AutoCAD does not support direct KML imports. You must convert the file to a supported format like SHP.

2. Are there any plugins available for importing KML files into AutoCAD?
Yes, you can find third-party plugins on the Autodesk App Store specifically designed for this purpose.

3. How can I scale an image imported from Google Earth in AutoCAD?
Determine a reference measurement in your AutoCAD drawing and use the “Scale” command to adjust the image accordingly.