Class S57UnknownObject

Namespace

EncDotNet.S100.Datasets.S57

Assembly

EncDotNet.S100.Datasets.S57.dll

The feature an S-57 object becomes when its object class has no rule in the S57S101Mapping: the translator keeps it, with its geometry, as an FeatureTypeCode feature instead of dropping it.

public static class S57UnknownObject

Inheritance

object

S57UnknownObject

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Remarks

S-52 draws an object of unknown class as a "?" (SY(QUESMRK1), or LC(QUESMRK1) round a line or area), and S-64 3.2.1 checks it does. The S-101 and S-401 Feature Catalogues don't define FeatureTypeCode, so the portrayal has no rule for it and falls back to its Default rule, which draws exactly that, by primitive. The "?" is also how a translation gap shows on the chart: a class the mapping doesn't cover yet.

The feature carries the S-57 object class in ObjectClassAttribute and each S-57 attribute under its S-57 acronym, or AttributeCode(ushort) when the mapping doesn't know the attribute, with its value as encoded. A class a rule drops on purpose (a S57FeatureRule with no S-101 class) is still dropped.

Fields

FeatureTypeCode

The feature type code of an object whose class has no rule.

public const string FeatureTypeCode = "S57UnknownObject"

Field Value

string

ObjectClassAttribute

The attribute that holds the S-57 object class code (OBJL), e.g. "163".

public const string ObjectClassAttribute = "OBJL"

Field Value

string

Methods

Acronym(int)

The S-57 acronym of an object class, e.g. "TS_PAD" for 138 or "$AREAS" for 500, or null when the S-57 Object Catalogue doesn't define it.

public static string? Acronym(int objl)

Parameters

objl int

The S-57 object class code.

Returns

string

The acronym, or null.

AttributeCode(ushort)

The attribute code for an S-57 attribute the mapping has no acronym for, e.g. "ATTL17001".

public static string AttributeCode(ushort attl)

Parameters

attl ushort

The S-57 attribute code.

Returns

string

The code.

Name(string?)

The name an FeatureTypeCode feature goes by in a pick report: "Unknown S-57 object TS_PAD (138)", or "Unknown S-57 object (999)" for a class the S-57 Object Catalogue doesn't define.

public static string Name(string? objectClass)

Parameters

objectClass string

The ObjectClassAttribute value, or null.

Returns

string

The name.