GeoGridLines


is an option for GeoGraphics that specifies what parallels and meridians to show.

DetailsDetails

  • The following settings can be given for GeoGridLines:
  • Noneno geo grid lines drawn
    Automaticgeo grid lines placed automatically
    napproximate number of parallels and meridians
    Quantity[]geo grid lines placed at multiples of an angular quantity
    {latgrid,longrid}geo grid lines specified separately for latitude and longitude
  • With the Automatic setting, geo grid lines are usually placed at points whose coordinates have the minimum number of digits in their decimal representation.
  • For each latitude/longitude coordinate, the following grid line options can be given:
  • Noneno geo grid lines drawn
    Automaticgeo grid line positions chosen automatically
    napproximate number of parallels and meridians
    Quantity[]geo grid lines placed at multiples of an angular quantity
    {x1,x2,}geo grid lines drawn at the specified positions
    {{x1,style1},}geo grid lines with specified styles
    funcfunction to be applied to , to get geo grid line option
  • When a positive integer n is specified for either latitude or longitude, various heuristics are applied to produce "nice" geo grid lines. As a result, the number of grid lines actually shown may not be exactly n.
  • For GeoGridLines->n or GeoGridLines->Automatic, the number of grid lines shown may differ between parallels and meridians.
  • For a Quantity specification, only angular quantities are supported.
  • The geo grid line function may return any other geo grid line option.
  • AbsoluteOptions can be used to extract explicit lists of latitudes and longitudes that were used for GeoGridLines specifications given Automatic settings.
  • Use GeoGridLinesStyle to set styles for geo grid lines.
Introduced in 2014
(10.0)