POLARGRID

Syntax: | `SET POLARGRID n GET POLARGRID { n }`
Default value: | `POLARGRID = 0`

`POLARGRID` controls the number of grid lines on a polar plot.

If `POLARGRID > 0`, draw a grid line at every `POLARGRID` large tic mark, starting with the first.

If `POLARGRID = 0`, suppress all grid lines.

If `POLARGRID = -1`, draw a grid line at every polar axis tic mark, large and small.

The `GRIDLINETYPE` characteristic controls the line type of the grid lines.

For example, the following picture shows an example polar plot with `POLARGRID = 1`

POLARAXISCOLOR
POLARMAX