A first horizontal axis of a plane of a display is determined based on a user input. Angular movement data of the display is collected. A second horizontal axis of the plane of the display is determined based on the angular movement data. A second user input on the display is mapped based on the second horizontal axis.

A first horizontal axis of a plane of a display is determined based on a user input. Angular movement data of the display is collected. A second horizontal axis of the plane of the display is determined based on the angular movement data. A second user input on the display is mapped based on the second horizontal axis.

A method of displaying compass headings includes the steps of: assigning specific colors to at least the four primary directional points North, East, South and West of a compass; and emitting the assigned colors from a single light source (e.g., a tri-colored LED) to visually indicate a current compass heading or orientation of a person, object, vehicle or craft (e.g., boat, airplane, helicopter or drone). The method may further include use of coded flashes of one or more colors to indicate compass points while minimizing the number of assigned colors for ease of memorization.

A compass device includes a base seat, a vial unit received in an accommodation hole of the base seat, an azimuth unit rotatably sleeved around the vial unit, a first spring wire disposed to resiliently retain the vial unit to the azimuth unit for magnetic declination adjustment, and a second spring wire disposed to resiliently retain the azimuth unit to the base seat for bearing angle measurement.

A compass device includes a base seat, a vial unit received in an accommodation hole of the base seat, an azimuth unit rotatably sleeved around the vial unit, a first spring wire disposed to resiliently retain the vial unit to the azimuth unit for magnetic declination adjustment, and a second spring wire disposed to resiliently retain the azimuth unit to the base seat for bearing angle measurement.

A compass device includes a base seat, a vial unit received in an accommodation hole of the base seat, an azimuth unit rotatably sleeved around the vial unit, a first spring wire disposed to resiliently retain the vial unit to the azimuth unit for magnetic declination adjustment, and a second spring wire disposed to resiliently retain the azimuth unit to the base seat for bearing angle measurement.

A compass device includes a base seat, a vial unit received in an accommodation hole of the base seat, an azimuth unit rotatably sleeved around the vial unit, a first spring wire disposed to resiliently retain the vial unit to the azimuth unit for magnetic declination adjustment, and a second spring wire disposed to resiliently retain the azimuth unit to the base seat for bearing angle measurement.

A first horizontal axis of a plane of a display is determined based on a user input. Angular movement data of the display is collected. A second horizontal axis of the plane of the display is determined based on the angular movement data. A second user input on the display is mapped based on the second horizontal axis.

A first horizontal axis of a plane of a display is determined based on a user input. Angular movement data of the display is collected. A second horizontal axis of the plane of the display is determined based on the angular movement data. A second user input on the display is mapped based on the second horizontal axis.