By default, Surfer will draw grid lines across the entire extent of the axes. If the grid lines are limited to smaller extents, this indicates that some custom limits have been applied. To ensure the grid lines are drawn along the entire extent of the axis:
- Select the axis in the Contents window.
- In the Properties window, click the Scaling tab.
- Change the First major tick and Last major tick values to match the Axis minimum and Axis maximum.
Updated September 3, 2020