Class S57FeatureRedirect
Conditional redirect on an S57FeatureRule: when the redirect's conditions are all satisfied, the feature is mapped to TargetS101Code instead of the rule's default S-101 code. A redirect may test an S-57 attribute (via ConditionAttribute), the feature's geometric primitive (via ConditionPrimitives), or both; when both are present they are combined with logical AND. At least one condition must be specified.
public sealed record S57FeatureRedirect : IEquatable<S57FeatureRedirect>- Inheritance
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S57FeatureRedirect
- Implements
- Inherited Members
Properties
AttributeOverrides
Additional attribute overrides applied only when this redirect fires. Layered on top of the rule's AttributeOverrides. Keyed by S-57 attribute acronym.
public IReadOnlyDictionary<string, S57AttributeOverride> AttributeOverrides { get; init; }Property Value
ConditionAttribute
S-57 attribute acronym used to test the redirect condition, or
null for a purely geometry-based redirect (one that fires solely
on ConditionPrimitives).
public string? ConditionAttribute { get; init; }Property Value
ConditionMatchesListItem
When true, ConditionAttribute is read as an S-57
list (comma-separated) and the redirect fires when any list item is in
ConditionValues, rather than requiring the whole value to
match. Used for list-valued discriminators such as CATLIT, where a
light is directional when the list contains 1 (e.g. "1,4").
Ignored when ConditionPresent is true.
public bool ConditionMatchesListItem { get; init; }Property Value
ConditionPresent
When true, the redirect fires whenever ConditionAttribute
is present with any non-empty value, rather than matching a specific
value in ConditionValues. Used for continuous-valued
discriminators such as a sector light's SECTR1 bearing, where the
mere presence of the attribute (not its value) selects the target class.
public bool ConditionPresent { get; init; }Property Value
ConditionPrimitives
Geometric primitives that satisfy the condition. When non-empty, the
redirect only fires for a feature whose primitive is in this set (in
addition to any attribute condition). Empty means "any primitive".
Used where a single S-57 object class splits across S-101 classes by
geometry — e.g. S-57 MORFAC (point) becomes Dolphin while
line/area MORFAC becomes ShorelineConstruction.
public IReadOnlyList<S57GeometryPrimitive> ConditionPrimitives { get; init; }Property Value
ConditionValues
S-57 attribute values that satisfy the condition. Ignored when
ConditionPresent is true; must contain at least
one value when ConditionAttribute is set and
ConditionPresent is false (a value-matching
redirect with no values can never match and is rejected when the
mapping is constructed).
public IReadOnlyList<string> ConditionValues { get; init; }Property Value
TargetS101Code
Target S-101 Feature Catalogue code when the condition matches.
public required string TargetS101Code { get; init; }