Save recognisable points on this model, then match them to the house through the camera. Use at least three points spread around a room; avoid choosing all points along one wall. Add another as an independent check.

Drag with one finger to rotate; drag with two to pan and pinch to zoom. On a computer, Shift-drag or right-drag pans. The cutaway hides roofs and upper walls. Tap the exact surface point, then Save point. Points stay on this browser.

Height cutoff: 2.46 m.

Pan directions follow the model’s top view.

Tap a surface point on the model.

Checking point calibration support…

Loading model…

Point calibration measures the real surfaces you aim at, so you do not need to enter your standing position or phone height. Scale stays fixed. This cannot correct inaccurate model dimensions.

Tap where you are standing. The red line shows the starting direction; face that direction when starting camera walking or VR.

Loading floor plan…

Checking handheld AR support…

Hold the phone at the measured height, with its rear camera clear. Place the phone’s position on the plan and face the red line when starting. AR does not remove real walls or detect obstacles. Start with the camera overlay to check alignment.

Defaults to 1.8 m. Changes are saved on this device. Phone camera height above applies only to camera walking.

Checking VR support…

VR uses physical walking when positional tracking is available. Cardboard supports looking around and tap to move; hold to change plan. Exit VR to place yourself again.

JavaScript errors are recorded on this device, including after a reload when browser storage works. After a problem, exit VR and download the log to inspect later or share. Nothing is uploaded.

Cardboard with camera tracking (prototype) — uses your map position and plan; requires measured screen setup and headset checks.