Create a series of transects along the boundaries of model compartments

This function takes the domain polygon file and returns transects for use when sampling fluxes across boundaries between model compartments.

Usage

boundaries(domain, crs)

Arguments

domain

An SF object containing polygons for the geographic extent of the inshore and offshore zones for the project.

crs

The coordinate reference system for the project. This should be specified in the project region file.

Value

The function returns a dataframe containg SF boundary transects around the model domain, a length column is included for weighting transects in future averaging functions.

Details

The function exposes the geometry for the domain polygons to the `to_segments` function. `to_segments` converts the geometry into a collection of transects and passes them back to this function. A unique id is added for each transect along with the length of the transect for use when calculating weighted averages.

See also

Other Boundary sampling functions: characterise_flows(), to_segments()