Editing Template Editor (section)

=== Zone Sparseness ===

When creating zones, RMG sets a reference square, and tries to ensure, as much as possible, that all zone shapes individually fit into it. Zone sparseness option allows to adjust the size of this reference square by a scaling factor. Default value is 1.0. If value is less than 1.0, zones will be constrained to individually fit into a smaller reference square, so they will tend to be more even and more circular and proportionally sized, but there will be less diversity in shapes and less randomness in placement. If value is more than 1.0, zone shapes will be less constrained, so there will be more randomness in shapes and placement, but zones will tend to be less circular and to have irregular sizes.

Zones sparseness can be tuned, by trial and error, to adjust zone sizes and/or zone size ratios. Note that effect depends on template structure, map size, and water content. So if you change those, you may have to manually adjust zone sparseness again.