Google Maps
Align lock replace and remove a transparent plan overlay
Where
Google Map then Map settings then Plan overlay
Place a flat development plan over real-world satellite imagery.
Steps
- Choose Upload PNG and select a flat top-down transparent plan.
- Unlock alignment if needed, then drag the plan to position it.
- Use the resize handle or Plan width in metres to set its scale.
- Use the rotation handle or Rotation in degrees to line up roads and boundaries.
- Adjust opacity to compare it with the satellite image, then Lock alignment.
- Use Replace PNG or Remove overlay later if needed and check the alignment again.
Expected result
The PNG is anchored geographically and follows map movement and perspective.
Tips and limits
Moving the PNG does not move already placed points or polygons. Align the plan before placing records. The overlay is a flat image; an angled render will not line up reliably across the site. Its placement is not a survey-grade georeferencing service.
Effect on the published viewer
Publish to apply the overlay, alignment, opacity or removal publicly.