Cursor And Zooming - Garmin GPSMAP 172 Owner's Manual

Reference
Map Page: Cursor
and Zooming
Creating New Map Waypoint
Using Built-In Basemap
Using BlueChart/MapSource Data
Overzoom, no additional data
0
To eliminate the cursor and re-center your position on-screen:
1. Press the QUIT key.
The cursor may also be used to create new waypoints directly from the map.
To create a waypoint with the cursor:
1. Use the ARROW KEYPAD to move the cursor to the desired map position.
2. Press the ENTER/MARK key and the 'New Map Waypoint' window appears. If the cursor is on
a map item, you get a new window with details about the item when ENTER/MARK is pressed.
Press ENTER again on the highlighted 'Create Wpt' option.
3. Press ENTER to confirm the new waypoint using the default three-digit name and symbol.
Selecting Map Scales
The map display has 28 available range scales from 20 ft. to 800 mi. (5 m to 1200 km). The map
scale is controlled by the IN and OUT keys, with the current scale displayed at the bottom right of the
data window.
To select a map scale:
1. Press the OUT key to zoom out and the IN key to zoom in.
F
The scale value represents the dstance from one end of the scale bar to the other.
The GPSMAP 172/172C' s system has a built-in worldwide database to 20 mi, with more detailed
coverage available through the use of the optional BlueChart or MapSource data. The GPSMAP
172/172C displays cartography as long as there is chart information available for the range you've
selected. Map coverage conforms to the following conditions:
• When the selected zoom range is covered by either the internal database, BlueChart, or
MapSource data, cartography is displayed.
• When the selected zoom range is covered by both the internal database and BlueChart/
MapSource data, cartography is displayed using the data with the best resolution.
• When the selected zoom range exceeds the resolution of the data in use, overzoom cartography is
displayed and an 'overzoom' warning appears below the scale field.