Summary

The GT_GEIMPORTIMAGE command in BricsCAD, AutoCAD, ZWCAD and ARES Commander enables users to import a geo-referenced image from Google Earth into CAD. This tool provides a step-by-step guided workflow to accurately capture and place images from Google Earth into CAD using real-world coordinates.

GeoTool -> Geographic Tools -> Geographic Tools -> Google Earth Image Import

Key Features Include:

• Guided Step-by-Step Process
  • Ensures precise capturing of coordinates from Google Earth.
  • Instructions prompt users through each step, reducing errors.
• Semi-Automatic Workflow
  • Uses manual selection of image boundaries for accuracy.
  • Captures real-world geo-referenced coordinates into CAD.
• Clipboard-Based Coordinate Capture
  • Uses Control-Shift-C in Google Earth to extract Lat-Long or UTM coordinates.
  • Ensures proper alignment of the image with CAD’s coordinate system.
• Supports Various Coordinate Systems
  • Allows users to work with Lat-Long (Geographic) or UTM (Projected) coordinates.
  • Ensures flexibility across different geospatial and CAD projects.
• Full-Screen Mode for Enhanced Precision
  • Users are advised to switch Google Earth to Full-Screen mode for accurate capture.
  • Removes unnecessary labels and annotations to ensure a clean image import.

Workflow – How to Use GT_GEIMPORTIMAGE

1. Start the Command
   • Run GT_GEIMPORTIMAGE from the GeoTools -> Geographic menu.
   • The command provides detailed instructions on how to proceed.
2. Prepare Google Earth
   • Reset the view using:
     • N → North is up.
     • U → Reset tilt to top-down view.
   • Zoom to the desired area to capture.
3. Set Up Coordinate System
   • Ensure Google Earth is set to Lat-Long or UTM as required.
   • Remove unnecessary labels or annotations for a clear image.
   • Switch to Full-Screen mode (F11) for a better view.
4. Capture Lower Left Corner
   • Move the cursor to the lower left corner of the image.
   • Press Control-Shift-C to copy coordinates to the clipboard.
   • Paste the captured coordinates into CAD when prompted.
5. Capture Upper Right Corner
   • Move the cursor to the upper right corner of the image.
   • Repeat the Control-Shift-C process for the second coordinate.
6. Save the Image from Google Earth
   • Save the current view as an image file.
   • Make sure to disable overlays (such as roads or labels) for accuracy.
7. Import the Image into CAD
   • The image is attached into CAD using the previously captured geo-referenced coordinates.
   • The scaling is automatically adjusted based on the selected coordinate system.

Benefits:

• Accurate Geospatial Mapping: Allows CAD users to work with real-world imagery.
• Easy Integration: Enables seamless import of Google Earth images into CAD designs.
• Reduces Errors: Step-by-step instructions ensure users follow best practices for precise image placement.
• Enhances Visualization: Combines real-world context with CAD drawings, ideal for site planning, surveying, and urban development.

The GT_GEIMPORTIMAGE command is a powerful tool for GIS and CAD professionals looking to integrate Google Earth imagery into their design workflow with high accuracy and minimal effort.