Ball Compass & Camera

3D球形指南针，带摄像头预览背景。

A 3D Spherical Compass, with camera preview background.

Features:

- Highly responsive due to usage of the gyroscope

- Shows true north when the localization (GPS) is available

- Possibility to show the camera preview as background.

- Shows declination and coordinates, with a button click.

- Nice design

- Just a compass

Keywords: Spherical compass, ball compass, 3D compass, camera preview.