Players interact with Guild Wars through the user interface. The interface includes windowed panels and dialogs and a heads-up display.
The compass, or radar, is part of the user interface that displays a general map of the location of allies and foes in relation to the player within eyesight. The compass shows cardinal directions, but always centers itself relative to the player.
The compass itself may be
pinged or drawn on by any
party member, in order to communicate information such as routes of escape, treasure locations, or items of interest. This can be initiated by any party member by clicking or dragging on the compass map area with the mouse…
Read more.