Tuesday, December 14, 2010

Tip of the day : Marine GeoGarage units

The Marine GeoGarage user has the choice to select his favorite system of units using 2 tools located at the bottom right corner of the main screen:

for the scale bar
clicking to change the scale bar units and switch between :
meters - nautical miles switch (scale : 750 m then next lower scale : 2 nm)
feet - nautical miles
switch (scale : 5000 feet then next lower scale : 2 nm)
meters - kilometers switch (scale : 750 m then next lower scale : 2 km)
feet - miles switch (scale : 5000 feet then next lower scale : 2 miles)

Note : this setup doesn't affect the display of the global distance for a route
-always displayed in meters if D is less of 1852 meters and in nautical miles (nm) if D is greater than 1852 m-

for the Latitude / Longitude display of the cursor position (WGS84)
clicking to select the format on the dedicated icon and switch between :
Degrees & Decimal Minutes : DD°DD.DDD' (default setting for marine locations)
Degrees, Minutes, Seconds : DD°MM'SS.SS''
Decimal degrees : DD.DDDDDDD° (submeter precision, around 0.3 meter at higher Google Maps scale)

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