RoutesUsing GPSMan in graphical modeDataWaypoints

Waypoints

A position format and a datum  

for presenting the position of each waypoint are chosen by the user. Changing the format or the datum may be made at will, but too many conversions may degrade the accuracy of the data.

The position formats and datums of all the waypoints in a group can be changed in a single operation as described below.

Some information that may be relevant for choosing a datum is given when describing how to define new datums.

The following position formats can be used: 

The altitude for a waypoint is given as a (possibly signed) floating point number in either metres or feet, depending on the existing option for this.

A symbol and a display option  

are also chosen for each waypoint. GPSMan symbols and display options may not all be supported by the receiver. When GPSMan is aware of this a tilde ~ will appear before the symbol name in the symbols menu. Symbols and display options not supported will be transmitted to the receiver as the default values; if these are also not supported, the symbol will be transmitted as a waypoint dot, and the display option as "Symbol & name".

The symbols menu can have a sub-menu defined by the user: more

details below.

Symbols of all the waypoints in a group can be changed in a single operation as described below.

Creating a waypoint can be made as for other items from

menus and also in the following ways:

The position of a waypoint displayed on the map  

can be changed there through a menu, as described below.

Clusters of waypoints can be created by giving a group of

waypoints to be used as centres: see below.


GPSMan User Manual
©Miguel Filgueiras, mig_at_ncc.up.pt, DCC-FC & LIACC, Universidade do Porto, 2004

RoutesUsing GPSMan in graphical modeDataWaypoints