GridLines
 Usage
• GridLines is an option for two-dimensional graphics functions that specifies grid lines.
Notes
• The following settings can be given for GridLines:
| None | no grid lines drawn | | Automatic | grid lines placed automatically | | {xgrid, ygrid} | grid lines specified separately in each direction |
• With the Automatic setting, grid lines are usually placed at points whose coordinates have the minimum number of digits in their decimal representation. • For each direction, the following grid line options can be given:
| None | no grid lines drawn | | Automatic | grid line positions chosen automatically | { ,  , ... } | grid lines drawn at the specified positions | {{ ,  }, ... } | grid lines with specified styles | | func | a function to be applied to  ,  to get the grid line option |
• Grid lines are by default colored light blue. • The grid line function func[ ,  ] may return any other grid line option. • AbsoluteOptions gives the explicit form of GridLines specifications when Automatic settings are used. • New in Version 2.
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