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USAGE GUIDE

Note : Use of RallyGDP when a GPX of rally is available is an advanced feature of RallyGDP. Go through the Rally Without GPX section first to understand the basics of running RallyGDP.

Save the GPX file given by organizers on your device's SDCARD. Import the same into RallyGDP database by selecting "Import Rally with GPX" from starting screen. If the GPX is given in some other format (eg. GDB) use any tool available on internet to convert into GPX fromat. The basic operation of RallyGDP with and without GPX is same. It only differs in the way it handles RoadBook data. So this guide shall focus only on that.

RoadBook

• It might be possible that the Odometer values might be embedded in the GPX in the comment or description tag. While importing, you may select one of them to check.

• RoadBook displays the Lat/Long of the GPX waypoints along with it's name (as shown in screenshot below). Name of the Waypoint is considered as instruction number/name by RallyGDP.

• RallyGDP uses sequential ordering of waypoints as given in the GPX.

• Usually name of Waypoints correspond to the instruction number of the RoadBook/Tulip. Apply caution where the names differ.

• There might be instances where not all waypoints are given in the GPX OR maybe extra waypoints are added in the GPX. Make sure that the odometer entered corresponds to the instruction number/name as given in the RoadBook/Tulip. If in doubt leave the corresponding odometer value blank. 

• It is not necessary to enter Odometer at all the Instruction numbers. e.g Only every fifth entry can be entered. RallyGDP takes care of blank entries. Also entries can be made during Rally.

Main Screen Map

• Blue line on the map points to the Waypoint RallyGDP is currently navigating to (i.e. the next instruction in the RoadBook/Tulip).

• Blue markers are placed at Waypoints provided in the GPX with instruction number (name) written in them.

• If track to be followed is also given in the GPX, the same is shown by green line on the map.

• Red line is the track that the team has created during the rally.

• If blue line is not pointing the next Waypoint as per RoadBook/Tulip itinerary, use the "Nxt WP" / "Prev WP" / "Nav to WP" (Sliding menu buttons) to navigate to the correct Waypoint. 

• If track to be followed is also given in the GPX, the same is shown by green line on the map.

Odometer Correction Alert

• RallyGDP uses sequential order of the Waypoints as given in the GPX to navigate.

• When the team passes the WP, RallGDP uses complex algorithms to calculate as to where on track the odometer should be equal to the value entered in the RoadBook.

• This algorithm uses two parameters (Both adjustable via settings) - "Radius around WP" and "Max distance from track".

• If these parameters are met, an Odometer adjustment dialog is displayed - the same can be for Auto Adjust OR Manual Adjust (changeable via settings).

• Orange Marker on map points to the location on track where RallyGDP assumes the odometer should be equal to RoadBook value. Thick red line on map indicates the Dist of Track from WP.

• Alert shows the WP number(name), Odo as entered in RoadBook, Error in Odo at that location(Orange marker) and Distance of Track from WP at that location.

• If Auto Adjust is enabled, RallyGDP shall automatically adjust the current odometer after a preset period ("Odometer Adjust Alert Time" in settings).

• Caution has to be applied on loops on mountains (Waypoint maybe on a parallel track)  OR at places where the Waypoints are tightly clustered.

• Due to a tight check on parameters, chances are that the team may pass a Waypoint and RallyGDP does not automatically navigate to the next Waypoint (eg.Waypoint might be a bit far from the track). Use the "Nxt WP/Prev WP" to navigate to the the correct WP in these situations.

• RallyGDP calculated odometer is displayed on the dashboard along with Ideal Odometer and Current Odometer. This is the calculated odometer derived by the above stated algorithm. "Adj Odo" (from Sliding Menu) adjusts the Current Odometer to this calculated value.

Further Suggestions

Practice using RallyGDP by creating your own GPX on your daily route OR use the simulation function to get comfortable on using the app.