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--- manual:user_guide:settings:gps [2015/02/11 15:02] – mstupka
+++ manual:user_guide:settings:gps [2018/07/03 14:51] – mstupka
@@ Line 1: / Line 1: @@
-====== GPS & Location ======
+{{  :manual:user_guide:ic_settings_gps_alt.png?nolink&}}
+====== GPS & sensors ======
 ----
-=== Global settings ===
+<WRAP center round important>
+System settings of GPS in your device are superior to all Locus GPS settings - the system GPS being turned off or if Locus does not have permission for accessing GPS (e.g. for battery-saving reasons) especially in stand-by mode may result in incorrect GPS positioning that influences many Locus features. **Check your system settings first!**
+</WRAP>
+===== Global =====
+==== Run at app start ====
+Sets the way GPS turns on at Locus Map startup:
+  * **Always**  - GPS turns on always when Locus Map is started
+  * **Previous state**  - GPS turns on or stays off according to last Locus Map session
+  * **Never**  - GPS never turns on at Locus Map start
+==== Altitude manager ====
+Sets **[[:manual:user_guide:tools:altitude|options to improve altitude measurement >>]]**
+===== Orientation =====
+==== Compass ====
+Allows to choose either built-in hardware compass or GPS-calculated azimuth for orientation that is essential for map rotation and the compass screen.
+  * **Hardware compass** - more suitable for slower speeds, e.g. walking, as it does not require movement to detect direction unlike GPS.\\ <WRAP round important> Mobile hardware compass is very sensitive on nearby magnetic metals and may display malformed values in their close presence, e.g. magnetic flip-cases or steel steering bars. </WRAP>
+  * **Orientation via GPS** - more suitable for car navigation due to magnetic components in the car that can affect performance of the hardware compass.
+  * **Auto-change** - shifts bearing automatically between hardware compass and GPS according to pre-defined critical speed.
+==== Use true bearing ====
+Sets navigation by true bearing instead of magnetic bearing.
+==== Compatibility mode ====
+Orientation is computed by an alternative method. Suitable for some devices.
+===== Notification settings =====
+==== Position acquired ====
+Notifies when your device acquires GPS location. Opens notification settings screen with several options to define the sound and vibration alert (beep, any sound from your phone library…).
+==== Position lost ====
+Notifies when your device loses GPS location. Opens notification settings screen with several options to define the sound and vibration alert (beep, any sound from your phone library…).
+===== Disable location =====
+==== Disable when app is hidden ====
+Disables GPS when the screen is turned off or the app is minimized and GPS location is not required by any other function
+==== GPS ON for track recording ====
+Keeps GPS on during the track recording even if the recording is paused.
+==== GPS ON for guidance ====
+Keeps GPS on during guidance even if the app is minimized and screen is off.
+===== Bluetooth GPS =====
+Launches the [[:manual:user_guide:tools:bluetooth|Bluetooth manager]] to enable GPS from a bluetooth device instead of the internal GPS. The advantage is better GPS accuracy and lower phone battery consumption.
+===== Advanced settings =====
+==== GPS auto-off ====
+Allows automatic turning on/off of your device GPS unit in order to save the battery life. Pre-defined conditions:
+  * **GPS update interval**  - sets time interval of GPS switching on and locating the device. Values of more than 60 seconds save battery life.
+  * **Min accuracy**  - sets minimum GPS locating accuracy to keep GPS on. When the accuracy is lower due to few detectable satellites, the GPS turns off.
+  * **Max search time**  - sets maximum time of GPS signal searching. If the GPS fix is not secured within this period, GPS turns off.
+  * **Keep auto-off enabled** - keeps GPS auto-off enabled even if Locus Map is active and screen is on.
+==== 3D skyplot mode ====
+Switches between 2D and 3D display of the skyplot that is available under the [[:manual:user_guide:maps_mainscr_ctrl#gps_compass_icon_button|GPS/compass button]] on the main screen:\\ {{ :manual:user_guide:settings:settings_51.gif?nolink |}}
+==== Google Services assisted location ====
+More stable and battery efficient location method on some devices. Using [[https://developers.google.com/location-context/fused-location-provider/|Fused Location Provider]] for getting location of the device. Fully functional provided Google Services have GET_LOCATION permission.
+==== NMEA recording ====
+Enables recording GPS NMEA to data/nmea directory when GPS is on or in time of active track recording. [[http://www.gpsinformation.org/dale/nmea.htm|More about NMEA >>]]
+==== Reset A-GPS data ====
+Forces GPS to reload online Assistant GPS data to improve its startup performance. [[http://en.wikipedia.org/wiki/Assisted_GPS|More about A-GPS >>]]
+==== GPS accuracy circle ====
+Displays a circle around your actual position describing accuracy of received GPS data:\\ {{ :manual:user_guide:settings:settings_52.png?nolink |}}

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