Hacker News Reader

I generally saw 1-3m accuracy when I was trying out ARKit and some GIS data, YMMV

https://twitter.com/bFlood/status/888485889248157697

that said, when using worldalignment gravityAndHeading, any location inaccuracy when the ARSCNView starts up will throw off the AR illusion, sometimes considerably. I hope apps will be able to correct during an ARSession when better location data is detected

View on HN

Super interesting! What do you mean by better location data detected? Is that something specific for iOS when you ping for location?

>relative to a nearby iBeacon

where is the iBeacon in the parking lot?

there is no iBeacon (not sure where you're quoting that from?), its just spatial data (lat/lons) projected into the SCNScene coordinate space (which is relative to the location and heading of the device when the ARSession starts)

>Core Location provides services for determining a device’s geographic location, altitude, orientation, or position relative to a nearby iBeacon.

https://developer.apple.com/documentation/corelocation

ok yes, an iBeacon is one possible way CoreLocation determines a device's location. in this case there was none, only GPS (and I guess Wifi is used as well)

As the quote states, it can (determine the geographic location, altitude, orientation) OR (determine position relative to a nearby iBeacon)

Reply on news.ycombinator.com