from iphone11 to third party accessory device ,how to measured the azimuth and elevation angle

About Qorvo NI demo app , i am not so understanding about how azimuth and elevation angle are measured ,please let me know 🥺

  1. during testing the Qorvo ni demo app with iphone11

sometime the 3d arrow moving so slow and sometimes got frozen about 10 seconds then slowly moving to point to the dwm3000evb and sometime does not aim correctly . I do not know why ? you know why ?? 🤨 :thinking: even i carry the iphone11 vertically as the recommendation from nearby interaction framework

  1. for azimuth and elevation angle , please correct my understanding

instead of the sun in the photo, it can replace sun with dwm3000evb and man is replaced by iphone11, you can imagine it out 🙂

2.1 ) for azimuth , is the angle that measured North to the ideal line of sight that draw from iphone11 to dmw3000evb ? 🤔 as like the photo

2.2) for elevation angle , is measured from plane line (observer local plane ) to the ideal line of sight that draw from iphone11 to dwm3000evb ??🤔as like photo