- アプリ : Hand Bearing Compass for Andriod APK,iOS
- 開発元 : DFR Editions | Appサポート
Hand Bearing Compass for iOS ダウンロード
Hand Bearing Compass for Android ダウンロード
Hand Bearing Compass
Use your iPhone/iPod/iPad on its edge, as a Hand Bearing Compass.
Press the screen to take a sight.
After 3 sights, go to the chart table !
The Magnetic variation is calculated, depending of your position, using the WMM algorithm and data.
Notes :
To save battery life, position is refreshed with an accuracy of 1NM.
Bearings are displayed in Magnetic (M). You have to apply Magnetic
Variation to determine the True North (T).
References :
– WORLD MAGNETIC MODEL : http://www.ngdc.noaa.gov/geomag/WMM/DoDWMM.shtml
– Moon Calculations : ELP2000 theory
– Jean Meeus. Astronomical Algorithms