Struct SelectionOptions 

pub struct SelectionOptions {
    pub area_of_interest: Option<AreaOfInterest>,
    pub area_bounds_densify_points: usize,
    pub policy: SelectionPolicy,
    pub grid_provider: Option<Arc<dyn GridProvider>>,
    pub vertical_grid_operations: Vec<VerticalGridOperation>,
}

Fields

area_of_interest: Option<AreaOfInterest>

area_bounds_densify_points: usize

Intermediate points sampled per edge when source/target CRS AOI bounds are normalized to geographic degrees for operation selection.

Values above crate::MAX_BOUNDS_DENSIFY_POINTS are rejected during transform construction.

policy: SelectionPolicy

grid_provider: Option<Arc<dyn GridProvider>>

vertical_grid_operations: Vec<VerticalGridOperation>

Implementations

impl SelectionOptions

pub fn new() -> Self

Create default selection options.

pub fn with_area_of_interest(self, area_of_interest: AreaOfInterest) -> Self

Set the area of interest used for operation ranking and filtering.

pub fn with_area_bounds_densify_points(self, densify_points: usize) -> Self

Set how many intermediate points are sampled on each AOI bounds edge when source/target CRS bounds are converted to geographic degrees.

Values above crate::MAX_BOUNDS_DENSIFY_POINTS are rejected during transform construction.

pub fn with_policy(self, policy: SelectionPolicy) -> Self

Set the operation selection policy.

pub fn best_available(self) -> Self

Select the best supported registry or exact synthetic operation.

This is the default policy. It does not synthesize approximate Helmert fallbacks.

pub fn require_grids(self) -> Self

Require a grid-backed datum operation when a datum operation is needed.

pub fn require_exact_area_match(self) -> Self

Require selected operations to match the configured area of interest.

pub fn allow_approximate_helmert_fallback(self) -> Self

Allow approximate Helmert fallback operations when no better supported operation is available.

This opt-in policy can synthesize a last-resort Helmert operation from source and target datum metadata. The selected operation is marked approximate in operation metadata and diagnostics.

pub fn with_operation(self, operation_id: CoordinateOperationId) -> Self

Select a specific registry operation by id.

pub fn with_grid_provider(self, provider: Arc<dyn GridProvider>) -> Self

Set the grid provider used to resolve grid-backed horizontal and vertical operations.

pub fn with_vertical_grid_operation( self, operation: VerticalGridOperation, ) -> Self

Add one explicit vertical grid operation candidate.

pub fn with_vertical_grid_operations( self, operations: impl IntoIterator<Item = VerticalGridOperation>, ) -> Self

Add explicit vertical grid operation candidates.

pub fn inverse(&self) -> Self

Trait Implementations

impl Clone for SelectionOptions

fn clone(&self) -> SelectionOptions

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for SelectionOptions

fn default() -> Self

Returns the “default value” for a type.