- documentation/usage completed

doc/usage.md

@@ -1,50 +1,113 @@
 
+This is FlightGear VFR flight helper add-on. It helps with VFR flights by
+offering simplified map, route manager interface and helpers to get quickly to
+most common settings.
+
+Normally I use it after planning the route in the external route planners (e.g.
+LittleNavMap or VfrFlight). Then export the data in gpx/fgfs format and import
+it on the start or during the simulation in the route manager window. Then it
+is used for navigation helper and to check how the planned route is performing.
+
 # Add-on usage
 
+Addon creates quickaccess toolbar to access most used functions during the VFR
+flight. When enabled and configured the add-on places several additional windows
+on top of the simulator window. From it you can track current progress with the
+route, which can be imported with the Qt Launcher interface or via the route
+manager interface in the simulator.
+
 ![alt quickmenu](screens/vfr_overview2.png "Overview")
 
+On this window, add-on places two windows - smallmap with additional route
+information and route plan.
+
+**TIP:** After importing flight plan do not forget to activate it in the route manager
+window. Without it, Flightgear won't be able to automatically switch between
+waypoints.
+
+**NOTE:** At the Overview window in the right lower corner, there is a control
+visualization from FGCamera addon (I mostly fly with the double mouse configuration
+and it is handy to see current yoke position when using mouse control)
+
 # General interface
 
+Addon creates it's `VFR Starter` menu in the Add-On main menu (the last menu in
+the interface). If you can't see the main menu try pressing `F10` to reveal hidden
+menu.
+
 ![alt quickmenu](screens/vfr_mainmenu.png "Main menu ")
 
+When selecting `VFR Starter` from the menu, the quick view appears. It is a launcher
+to most common used items needed for the flight.
+
 ![alt quickmenu](screens/vfr_quickmenu.png "Quick Menu")
 
-* **MP** - Small Map
+* **MP** - Small Map - shows small map in the lower left corner.
-* **PL** - Flight Plan
+* **PL** - Flight Plan - displays flight plan route with information about current route leg
-* **SW** - Stopwatch
+* **SW** - Stopwatch - shows default stopwatch
-* **R** - Radio interface
+* **R** - Radio interface - shows default radio interface
-* **A** - ATC in range
+* **A** - ATC in range - displays ATC Stations in current aircraft range
-* **RM** - Route Manager
+* **RM** - Route Manager - displays Route Manager interface
-* **X** -
+* **X** - closes the quick access menu
-
-* MP - map - small map in lower left corner with route navigation, access to configuration (config button), zoom settings (buttons +/-) and quick action center on the aircraft (C button). On the bottom you can see information about current waypoint name, bearing (B), distance (D), ETA and wind direction/speed (W).
-* PL - flightplan - in upper left corner
-* SW - stopwatch
-* R - radio panel
-* A - ATC in ranges search
-* RM - route manager activation
 
+Addon remembers the state of the quick access menu. When you close the simulator
+with the quick start open, it opens on the next start.
 
 # Small map
 
+Small map is a variation of the normal map available in the main menu (Equipment -> Map).
+It does not contain setting on the same screen, but has additional information
+about current route leg and environment. It can be resized to smaller area than
+normal map especially useful for lower resolution screens during the simulation.
+
+**INFO:** This map shares its settings with the main map, so setting visibility in one
+view affects the other.
+
 ![alt quickmenu](screens/vfr_smallmap.png "Small map")
 
+On the top of the map the buttons have following meaning:
 
-**Waypoint | Bearing | Distance | ETA | Wind DIRECTION/STRENGHT**
+* **CONFIG** - access to the map configuration window
+* **-/+** - zoom in/out of the current map view
+* **C** - center view on the aircraft
+* **X** - close the map window
 
+Below the map there are several labels with the information lined in the
+following order:
 
-* **CONFIG** -
+**Waypoint | Bearing | Distance | ETA | Wind DIRECTION/STRENGTH**
-* **-/+** -
+
-* **C** -
+* **Waypoint** - current active waypoint
-* **X** -
+* **Bearing** - bearing from current position the current waypoint
+* **Distance** - distance (in nm) to the current waypoint
+* **ETA** - Estimated Time of Arrival to the current waypoint
+* **Wind Direction/Strength** - current wind situation (120/13 -> wind from direction 120 with speed 13 knots)
+
+After clicking `CONFIG` the standard configuration for the map view appears, 
+in which you can configure visibility and window behaviour.
 
 ![alt quickmenu](screens/vfr_smallmap_settings.png "Small map - settings")
 
 # Flightplan
 
+After clicking `PL` on the main quick access menu, the flightplan window appears.
+It is a window with the current loaded flightplan list (via the `Route Manager`).
+
 ![alt quickmenu](screens/vfr_flightplan.png "Flight plan")
 
+On the top line, there is a place for information about: Current waypoint name,
+distance and ETA to this waypoint. If the time is not possible to calculate, the
+place is empty.
+
 # Stopwatch/Radio Interface/ATC in Range/Route Manager
 
+These are standard instruments/devices/windows available in the flightgear
+simulator. It is only a quick access window to this data.
 
 # Support/Development
+
+Look on the github page https://github.com/slawekmikula/fg-addon-vfrnavigator.
+Post there issues, requests for new features and by all means fork it, modify and
+provide pull requests :)
+
+Have fun.