pub fn forced_walk_within(
from: &DistanceMap,
to: &DistanceMap,
through: &Polygon,
tolerance: f64,
max_cells: usize,
) -> Result<ForcedWalk, FarthestError>pub fn forced_walk_within(
from: &DistanceMap,
to: &DistanceMap,
through: &Polygon,
tolerance: f64,
max_cells: usize,
) -> Result<ForcedWalk, FarthestError>