OptionalboundsRead when fields contains MLN_BOUND_OPTION_BOUNDS.
OptionalmaxOptionalmaxOptionalminOptionalminOptionalunboundedSelects the unbounded geographic constraint, which leaves every camera
center unconstrained and lets the map pan freely across the antimeridian.
This differs from world bounds of -90/-180 to 90/180, which clamp longitude
to that range. Mutually exclusive with MLN_BOUND_OPTION_BOUNDS, and
leaves mln_bound_options.bounds unread.
Optional map camera constraint fields.
See
mln_bound_optionsin the C API reference.