Track (TRK) - the answer to the question "which way am I going." This is the direction you are actually moving relative to the earth.
Bearing - the answer to the question "which way I need to go in order to go directly to the active waypoint."
Turn - how far you need to turn to go directly to the active waypoint. Turn is the difference between the track and the bearing. The direction indicated is the direction of correction.
Course (desired track, DTK) - the track necessary to parallel a route leg. It is important to distinguish that bearing is relative to the active waypoint from the present position and course is relative to the line between two waypoints: waypoint being navigated to and waypoint being navigated from.
Cross track error (XTK) - how far you are off the line defined in the definition of course. The direction indicated is the direction of correction (10L km means that you are 10 km to the right of course).
Velocity Made Good (VMG) - the speed of your approach to active waypoint.
Estimated Time En-route (ETE) - the estimated time you will spend reaching active waypoint.

Map

Androzic is first of all a map application. It uses raster maps in OziExplorer format. Each map consists of a specially encoded raster image and a supplementary calibration file. There are three major sources for a map image: computer rendering (like Open Street Map, Google Map, etc), scanned paper map (road atlases, military maps, aviation maps, etc) and sketch maps (hand drawn plans, photographed recreation plans, etc). Each map has a primary scale (MPP - meters per pixel in terms of OziExplorer). If you have several maps that cover specific coordinate Androzic chooses the map with the largest scale. But you can switch to any map you prefer.

Map view

Zooming map

You can zoom map using pinch gesture or by pressing and on a side panel. Androzic supports the following zooms: 1%, 2.5%, 5%, 7.5%, 10%, 25%, 50%, 75%, 100%,125%, 150%, 175%, 200%, 250%, 300%, 400%, 500%.

Switching maps

If there is more than one map for a current location you can switch to preferred map by pressing (lesser scale) or (larger scale) on a side panel. The other way is to use menu: Maps→At cursor and select any map directly.

Following mode

You can lock map view to your current location. This is called following mode. Position cross disappears and map automatically follows your movement. You can turn off following mode by pressing on a side panel and turn it back again by pressing . If your device has a pointing device (trackball, optical sensor, etc) then pressing it turns this mode on and off. Otherwise “stop following on drag” is enabled by default, you can change this behaviour in Androzic settings.

Waypoints

Waypoint represents a single place. At a minimum it has to have name and coordinates.

Waypoint sets

Waypoints are stored in files, each separate file is called waypoint set. Androzic always has a default waypoint set called myWaypoints. When you create new waypoints they automatically appear in this set. You can later move waypoint to another set in waypoint properties.

Waypoint properties

Androzic currently supports not all waypoint properties defined in OziExplorer. Supported properties so far:

name - one line string
coordinates - latitude and longitude (Androzic supports editing coordinates in UTM format but they are still always stored as latitude and longitude)
description - multiline text
proximity - radius of a circle around waypoint, in meters
altitude - elevation of waypoint above the geoid (MSL), in feet
marker icon
marker color
name color

Waypoint properties can be accessed in two ways:

press on a waypoint on a map, waypoint information pop-up will appear, press Properties button;
select Waypoints→Manage menu item to open waypoint list view, press on waypoint in the list.

Creating waypoints

Add waypoint

This is the most commonly used way to create waypoints. When you select Add waypoint from menu waypoint is created at the current location (in following mode) or at a map center position.

Project new waypoint

You can create a new waypoint by specifying distance and bearing from some reference point. This reference can be current location or any other waypoint. Select Waypoints→Project new from menu to access this option.

New waypoint

Select Waypoints→New from menu to open blank waypoint properties view where you can manually specify all properties for a new waypoint.

Waypoint description

Waypoint description is interpreted by Androzic as HTML. If you now HTML you can write it just in text edit box in advanced waypoint properties, or copy/paste it from some other location. Then your waypoint information can look as follows:

That particular waypoint description was created with much easier way: all waypoints where created in Google My Maps - it supports rich text edit of point description - and then imported via KML file.

Marker icons

Androzic supports custom marker icons but this is not enabled by default. To enable marker icons download mapicons.zip file from Androzic support web site and unzip it in Androzic application folder (configured in Settings). Application folder will now contain icons folder with more then 630 marker icons in it. You can remove unnecessary icons if this is too much for you. Next time you start Androzic you will be able to select marker icon in waypoint properties view.

These marker icons are originally published on http://mapicons.nicolasmollet.com/ by Nicolas Mollet under Creative Commons 3.0 BY-SA license. You can download updates or other styles from this site by yourself, just keep icons.dat file intact - it is part of Androzic, not icons collection.

Other marker icons

You can use any icon set as marker icons if you like. Icons have to meet only two criteria:

they must be uniform (have same size and anchor location)
they must be in PNG format

Create icons folder under Androzic application folder (configured in Settings) or empty existing one. Copy your preferred icons in the icons folder. Create icons.dat text file in icons folder. File must contain one line with the following format:

X,Y,D

here X stands for horizontal pixel coordinate of an anchor in marker icon, Y stands for vertical pixel coordinate of an anchor, D stands for a waypoint name position relative to marker icon: 0 - top, 1 - right, 2 - bottom, 3 - left (name position will be supported in future releases).

Illustration of marker icon anchor:

Navigation

Androzic has two navigation modes:

Navigation to waypoint
Navigation via route

The second one can be considered an extension to the first one.

Navigation to waypoint

Navigation to waypoint is initiated by pressing Navigate button in waypoint description or selecting Navigate menu item in waypoint context menu. When navigating to waypoint distance, bearing and turn are displayed, as well as VMG and ETE. Line connecting your current location and target waypoint is drawn to ease your navigation. In this mode navigation never stops, you can cancel it through Navigation menu.

Navigation via route

Route is simply the sequence of waypoints. Route has at least two waypoints - source and destination. Navigation therefore always begins from the second route waypoint. This gives us a concept of route leg (course). Given a course there comes out another navigation parameter: XTK - it is shown only in this mode. Total route distance left is also shown in this mode.

Navigation is proceeded to the next waypoint in two cases:

when you reach active waypoint proximity distance from the active waypoint
when you reach the next route leg (see traverse logic)

Navigation is stopped when you reach proximity distance from the destination (last) waypoint of the route.

Traverse logic

Sometimes there is no way or no need to reach waypoint proximity distance. This is where traverse logic helps. Look at the illustration:

Let’s assume you are going from Turin to Strasbourg, it means that Strasbourg is an active route waypoint and Turin-Strasbourg is an active route leg. Passing Bern you decided to skip Strasbourg and go directly to Berlin. In this case you will never reach Strasbourg proximity and navigation will not switch to new route leg (Strasbourg-Berlin). This leg has a traverse - a line perpendicular to the leg and crossing source waypoint, it is drawn in red on illustration. As soon as you cross the traverse Androzic assumes that you wish to navigate along that leg and switches to the next route waypoint (Berlin in our case). This behavior can be turned off in Settings.

HSI view

The horizontal situation indicator (commonly called the HSI) is an aircraft instrument that combines both the Direction and the Course Deviation Indicator display. It is one of the main instruments for navigation.

Application provides simplified look-alike HSI:

Compass card displays your current track
Symbolic aircraft together with lumber lines at top and bottom is used to reference your direction
Heading bug shows bearing to active waypoint (your desired track)
Course pointer shows active course when navigating in route mode
Course deviation scale is used to determine your deviation from course, each circle equals to three proximity values (configurable in preferences)
Course deviation bar shows your deviation from course, if the bar is to the right of course pointer than you have deviated left from course and vice verso.
Warning lag is red when there is no active navigation in place and orange when you are navigating to waypoint (course indicators are off)

Location sharing

You can share location within a group. Locations are stored on a dedicated server so your device must provide data connectivity (e.g. GPRS or WiFi). Sharing group is identified by a session. To start sharing you have to specify the title of a session you want to join and your user identifier in application settings:

All users with the same session title will be in one group and see each other. That’s why it is essential to make this string unique and private, for example: tEam1543. After you have specified session and user you can start real sharing. On a side panel press to start sharing. If you are not alone in a group the tags of other users will appear after a while. Locations are updated in regular intervals specified in settings. If location of a specific user exceeds configured timeout then such user is considered lost and their tag becomes 50% transparent. When you want to stop sharing press on a side panel.

All locations are stored on server for 24 hours (cleaned hourly). It means that if you will resume session within 24 hours you will see tags from the previous session.