Class S98SuppressionPolicy

Namespace

EncDotNet.S100.Datasets.Pipelines.Interoperability

Assembly

EncDotNet.S100.Core.dll

The single source of truth for the S-98 R-101-102-B depth-feature suppression decision: which S-101 skin-of-the-earth feature types an active S-102 bathymetric surface replaces, and the MSC.232(82) §5.8 safety-contour exception that keeps the mariner's safety contour visible.

public static class S98SuppressionPolicy

Inheritance

object

S98SuppressionPolicy

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Remarks

The suppression mechanism differs by renderer (the headless path filters encoding-neutral DrawingInstructions; the Mapsui path builds its layer from the already-filtered slice), but both consult this policy so the rule can never drift between backends. Cites S-98 Ed.2.0.0 Annex A §8.4.1 + Part B §B-3.1.2 + Annex A §A-6.9.1 NOTE + MSC.232(82) §5.8 + IMO MSC.232(82) Annex 11 §10.5.2.

Fields

SafetyContourTolerance

Depth-value equality tolerance (metres) for the safety-contour exception. A DepthContour whose VALDCO is within this of the mariner's safety contour survives suppression.

public const double SafetyContourTolerance = 1E-06

Field Value

double

SuppressedFeatureTypes

The S-101 feature-type codes an active S-102 dataset suppresses (S-98 Annex A §8.4.1 "skin-of-the-earth feature replacement"). Ordinal S-100 Part 5 codes.

public static readonly IReadOnlySet<string> SuppressedFeatureTypes

Field Value

IReadOnlySet<string>

Methods

ShouldSuppress(string?, object?, double)

Decides whether a single feature should be suppressed given its feature-type code and (for depth contours) its VALDCO depth value.

public static bool ShouldSuppress(string? featureType, object? depthContourValue, double safetyContour)

Parameters

featureType string

The S-100 Part 5 feature-type code, or null for a feature that does not trace back to a single type (never suppressed).

depthContourValue object

The numeric VALDCO depth for a DepthContour feature (any numeric or numeric-string form), or null. Ignored for non-contour types.

safetyContour double

The mariner's safety-contour depth. A depth contour equal to this (within SafetyContourTolerance) is preserved.

Returns

bool

true to suppress the feature.

TryReadDepth(object?, out double)

Coerces a VALDCO value carried as a boxed numeric or numeric string into a double.

public static bool TryReadDepth(object? raw, out double depth)

Parameters

raw object

depth double

Returns

bool