Section 3 Common Basic Operations  3-18 
3.11  Mouseover Display 
When the mouse cursor is hovered over an object on the screen, the information on the object is 
displayed on a popup window near the cursor. 
When objects overlap, the following priority  is applied and information on the object of the higher 
priority is displayed. 
 
Object  Priority 
•  AIS target  High 
•  Tracking target 
•  NAVTEX (symbol) 
•  User map (mark) 
•  Buoy object 
•  Light object 
•  NAVTEX (line) 
•  User map (line) 
•  EBL1, EBL2 
•  VRM1, VRM2   
•  Parallel index lines (PI) 1 to 8 
•  AZ1, AZ2 
•  Sector Alarm 
•  Polygon Alarm 
•  AIS filter 
•  Dragging anchor monitoring 
•  WPT 
•  NAVTEX (area)  Low 
 
3.11.1  Condition and timing of mouseover display 
3.11.1.1  Starting mouseover display 
Mouseover display is performed under the following condition and timing. 
 
Condition  The cursor in AUTO mode. 
Timing  The cursor stops for 500ms. 
When the motion mode of the radar screen or chart is a relative motion display (RM) mode, the fixed 
object such as land moves. 
In this case, mouseover display is not performed simply by hovering the cursor over the object. 
By moving the cursor once and hovering the cursor over the object again, mouseover display can be 
performed. 
For the details of the motion mode of the radar screen, refer to “5.4.6 Setting a motion mode”. 
 
3.11.1.2  Terminating mouseover display 
Mouseover display terminates when the cursor is moved based on a certain distance or the mouse 
button is clicked.