> For the complete documentation index, see [llms.txt](https://docs.aeroai.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.aeroai.io/siega-web-features/other-features/coordinate-display.md).
# Coordinate Display
The Coordinate Display is a small live readout in the bottom left corner of the viewer that shows the latitude, longitude, and elevation of whatever your
mouse is hovering over in the scene. It updates as you move and is the quickest way to read off the location of a point without leaving a measurement
\
behind.
### How to Use
click on the "Measure" button from the top bar.
click the "Coordinate HUD" button. The button highlights blue once the readout is on, and the small box
appears at the bottom left of the screen.
The readout shows three lines:
* "Lat" — the latitude of the point under your cursor, in degrees.
* "Lon" — the longitude of the point under your cursor, in degrees.
* "Elev" — the elevation of the surface under your cursor, in meters.
The readout follows the cursor so you can sweep over a feature in the scene and watch the numbers change. It reads off the actual surface, so if you hover
over a building rooftop or a 3D Tiles model the elevation reflects the top of that surface, not the ground beneath it. If the spot does not have a
tileset on it, the elevation falls back to the terrain height from the globe.
### How to stop
Click the "Coordinate HUD" button in the "Measure" panel a second time to turn the readout off. The readout also hides on its own when your cursor leaves
the viewer canvas, so it stays out of the way while you are working in side panels.
### Notes
The readout is a quick reference and not a saved measurement. If you want to keep a coordinate you can read here, use the "Coordinates" tool in the
"Measure" panel to drop a pin and store the value with the rest of your measurements.
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