2月21日的NASA Spacecraft Compass应用程序分析

There's no other app like this in the Universe. 🚀 100 kB compass app with vector graphics. Instant startup, battery-friendly. 🚀 Fully functional spacecraft instrument compass / attitude indicator. 🚀 FDAI = Flight Director/Attitude Indicator. 🚀 Shows roll, pitch, and yaw. 🚀 You can use it as a level, too. 🚀 The app accurately shows your orientation in 3D space. Imagine traveling through the Universe. 🚀 A true physical model that works correctly even when upside down. 🚀 Night mode. 🚀 Zoomable, without loss of display quality. 🚀 The app uses vector graphics for smooth and clear display. 🚀 Subtle vibrations to enhance the experience. 🚀 Live Wallpaper. 🚀 Wear OS app for your watch. 🚀 You can control this app programatically: https://github.com/Sublimis/Compass-Navball ✨ Why is this app so special? • Supports adaptive frame rates up to 240 Hz for a smooth display. • Drawing is done only with 2D primitives, like arcs and circles. • Complicated mathematics is needed to achieve the 3D effect, but this makes the app very tiny and efficient. • No ads. No permissions. One-time payment and it's yours forever. 👨‍🚀 The Apollo and Space Shuttle spacecrafts had this instrument on board called FDAI = Flight Director/Attitude Indicator. Check it out: • https://www.nasa.gov/history/afj/ap16fj/01popup_fdai.html • https://en.wikipedia.org/wiki/Attitude_indicator#Flight_Director_Attitude_Indicator 👨‍🚀 Usage • Double-tap: Toggle day/night theme. • Pinch: Zoom in/out. • Double-fling horizontally: Toggle horizon on/off. • Double-fling vertically: Down to swap horizontal, up to revert. • Long tap: Demo animation, tap again to leave. • Long tap the app icon: App menu where you can toggle vibrations and day/night theme. • You can set the app as a Live Wallpaper. • You can control this app programatically! Learn more: https://github.com/Sublimis/Compass-Navball ❤️ Keep in mind: • Please leave a nice review if you like the app. • Please consider supporting us by making a purchase. Making great apps takes a lot of effort. • Check out our other apps!