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--- manual:user_guide:settings:gps [2015/02/12 11:19] – mstupka
+++ manual:user_guide:settings:gps [2022/08/08 14:21] – mstupka
@@ Line 1: / Line 1: @@
-====== GPS & Location ======
+{{  :manual:user_guide:ic_settings_gps_alt.png?nolink&}}
+====== GPS & sensors ======
 ----
-=== Global settings ===
+<WRAP center round important>
-//Run at startup//<html><br></html>
+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>
+===== General =====
+==== 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//<html><br></html>
+  * **Always**  - GPS turns on always when Locus Map is started
-Sets options to improve altitude measurement. More about it [[manual:user_guide:functions:altitude|here >>]]
+  * **Previous state**  - GPS turns on or stays off according to last Locus Map session
-=== Notification settings ===
+  * **Never**  - GPS never turns on at Locus Map start
+==== Altitude manager ====
+Sets **[[:manual:user_guide:tools:altitude|options to improve altitude measurement >>]]**
+==== Sensors manager ====
+Sets **[[manual:user_guide:tools:bluetooth|connection to external sensors]]** via Bluetooth and ANT+.
+===== Orientation =====
+==== Map rotation mode ====
+Allows choosing 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 to 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 the performance of the hardware compass.
+  * **Auto-change** - shifts bearing automatically between hardware compass and GPS according to pre-defined critical speed.
+==== Use true bearing ====
-//Position acquired//<html><br></html>
+Sets navigation by true bearing instead of magnetic bearing.
-Notifies user of the GPS acquiring location of the device.
+==== Compatibility mode ====
+Orientation is computed by an alternative method. Suitable only for some devices.
+===== Notification settings =====
-//Position lost//<html><br></html>
+==== Position acquired ====
-Notifies user of the GPS having lost location of the device.
-=== Disable/enable GPS ===
+Notifies when your device acquires GPS location. Opens the notification settings screen with several options to define the sound and vibration alert (beep, any sound from your phone library…).
-//Disable when hidden//<html><br></html>
+==== Position lost ====
-Disables GPS when the screen is turned off or the app is minimized and GPS is not required by any other function
-//Track recording//<html><br></html>
+Notifies when your device loses GPS location. Opens the notification settings screen with several options to define the sound and vibration alert (beep, any sound from your phone library…).
-Keeps GPS on during the track recording even if the app is minimized, screen is off and the recording paused.
-//Guiding//<html><br></html>
+===== Disable location =====
-Keeps GPS on during guiding even if the app is minimized and screen is off.
-=== Bluetooth GPS ===
+==== Disable when app is hidden ====
-//Bluetooth GPS//<html><br></html>
-Launches the [[manual:user_guide:settings: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.
-=== Internal GPS auto-off ===
+Disables GPS when the screen is turned off or the app is minimized and any other app's function does not require GPS location.
-//GPS auto-off//<html><br></html>
-Allows automatic GPS turning on/off according to pre-defined options:
-  * //GPS update interval// - sets time between GPS attempts to acquire location. Values of more than 60 seconds save battery life.
+==== GPS ON for track recording ====
-  * //Min accuracy// - sets minimum accuracy to keep GPS on. When the accuracy is lower due to few detectable satellites GPS turns off.
-  * //Max search time// - sets maximum time for GPS signal searching. If the GPS fix is not secured within this period, GPS turns off.
-//Keep auto-off enabled//<html><br></html>
+Keeps GPS on during the track recording even if the recording is paused.
-Keeps GPS auto-off enabled even if Locus Map is active and screen is on.
-=== Advanced settings ===
+==== GPS ON for guidance ====
-//Altitude correction//<html><br></html>
+Keeps GPS on during guidance even if the app is minimized and screen is off.
-Defines GPS altitude correction in [[manual:user_guide:functions:altitude|Altitude manager]].
-//3D skyplot mode//<html><br></html>
+===== Advanced settings =====
-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.
+==== Location filter ====
+Smoothens GPS location and speed values, and decreases deviations. 4 levels are available, from no filter to a heavy filter.
+==== GPS auto-off ====
-Record NMEA
+Allows automatic turning on/off of your device GPS unit in order to save the battery life. Recommended on long-range hikes. Pre-defined conditions:
-Record GPS NMEA to data/nmea directory when GPS is on or in time of active track recording
-Reset A-GPS data
+  * **GPS update interval**  - sets time interval of GPS switching on and locating the device. Values of more than 60 seconds save battery life.
-Force your GPS to reload online Assistant GPS data.
+  * **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 the 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 active even if Locus Map is running and the screen is on.
-...
+==== 3D skyplot mode ====
-Altitude manager - settings
-.......................................
-Altitude offset
-Use altitude offset
-Define offset between real and GPS altitude
-Pressure sensor
+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 |}}
-Use pressure sensor
+==== Google Services assisted location ====
-Measure precise altitude by pressure sensor
+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 the location of the device. Fully functional provided Google Services have GET_LOCATION permission.
- ....
+==== NMEA recording ====
-Altitude filter
-Apply filter to altitude. Heavier filters cause less fuzzy altitude values but slower reaction on altitude changes.
-Offset
+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 >>]]
-...........
-Enable Altitude offset in settings tab before setting offset parameters.
-...
-Pressure
+==== Reset A-GPS data ====
-.............
-Enable Pressure sensor in settings tab before setting pressure parameters.
-Automatic
+Forces GPS to reload online Assistant GPS data to improve its startup performance. [[http://en.wikipedia.org/wiki/Assisted_GPS|More about A-GPS >>]]
-Automatic calibration according to 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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