CartographicText
Features that define the content and placement of text when rendering OS MasterMap graphically (for example, Road Name or Classification).
Spatial attribute: point
Data type attribute: GM_Point
CartographicText attributes
TOID
The unique topographic reference number. It consists of the letters ‘osgb’ followed by thirteen or sixteen digits. The TOID must always be retained/stored in its entirety and any leading zeros on the TOID are retained to permit linking of the feature to other OS MasterMap products.
Attribute Name: TOID
Type: String
Multiplicity: [1]
featureCode
Topographic features have a numerical feature code (a five-digit integer) assigned to each feature. This feature code is wholly determined by the feature type, the descriptive group(s) and the descriptive term(s). The feature code does not add any information to that contained in these attributes. The physicalLevel, physicalPresence and Make attributes do not affect the feature code.
The feature code itself is arbitrarily assigned and is therefore not informative without the look-up table that gives the feature type and attribute values corresponding to each feature code.
Attribute Name: featureCode (GML), feature_code (GeoPackage), N/A (Vector Tiles)
Type: Integer
Multiplicity: [0..1]
version
The version number of the feature (in the range of 1 to 4294967295). This uniquely identifies a specific version of a feature with a given TOID.
Attribute Name: version (GML), version (GeoPackage), N/A (Vector Tiles)
Type: Integer
Multiplicity: [0..1]
versionDate
The date on which this version of the feature became the current version. This is the date on which the feature was changed in the database and is not the date of any associated real-world change.
Attribute Name: versionDate (GML), version_date (GeoPackage), N/A (Vector Tiles)
Type: Date
Multiplicity: [1]
theme
A theme that the feature belongs to.
Attribute Name: theme (GML), theme (GeoPackage), theme (Vector Tiles)
Type: ThemeValue
Multiplicity: [1..*]
anchorPoint
The coordinate position that a piece of text is positioned relative to. Measured in metres in the British National Grid spatial reference system.
Attribute Name: anchorPoint
Type: GM_Point
Multiplicity: [1]
changeHistory
Information about the change history of a feature that comprises the reason for the change and the date for this change. Each feature may have numerous change history records, and these are ordered chronologically. A complex attribute.
Attribute Name: changeHistory
Type: ChangeHistoryType
Multiplicity: [1..*]
descriptiveGroup
This is the primary classification attribute of a feature. It assigns a feature to one or more of 21 groups, most of which are categories of real-world topographic objects, such as path, building or natural environment; others are categories of supportive or administrative features, such as network or polygon closing geometry and political or administrative. In general, values of this attribute are not specific to particular feature types.
Attribute Name: descriptiveGroup
Type: DescriptiveGroupValue
Multiplicity: [0..*]
descriptiveTerm
This attribute, if present, gives further classification information about the feature. A feature may have multiple descriptiveTerm attributes, but this is little used at present. Most features have zero or one descriptiveTerm attributes.
Attribute Name: descriptiveTerm (GML), descriptive_term (GeoPackage), N/A (Vector Tiles)
Type: DescriptiveTermValue
Multiplicity: [0..*]
make
Where known, indicates whether the real-world nature of the feature is man-made or natural.
Attribute Name: make (GML), make (GeoPackage), make (Vector Tiles)
Type: MakeValue
Multiplicity: [0..1]
physicalLevel
This attribute states whether the feature is underground, obscured below normal cartographic level, at normal cartographic level, or overhead.
Normal cartographic level is that perceived to be the normal surface level. Where an area feature overlies another (for example, bridges), they are at normal cartographic level and the features below them are recorded as obscured.
Attribute Name: physicalLevel (GML), physical_level (GeoPackage), N/A (Vector Tiles)
Type: Integer
Multiplicity: [1]
physicalPresence
This attribute indicates the nature of the object represented by the feature. This is normally used for TopographicLine, for example, a value of ‘obstructing’ indicates that the feature prevents pedestrian access, whereas a value of ‘edge/limit’ means that the feature represents a change of surface type and does not generally impede access. This attribute is also used to identify administrative boundary and inferred line features, and moveable area features (for example, moveable cranes).
Attribute Name: physicalPresence (GML), physical_presence (GeoPackage), N/A (Vector Tiles)
Type: PhysicalPresenceValue
Multiplicity: [0..1]
textRendering
Provides the information to graphically display a text string in harmony with the underlying map detail and consists of anchorPosition, font, height and orientation. textRendering is a complex attribute.
Attribute Name: textRendering
Type: TextRenderingType
Multiplicity: [1]
textString
Textual information that can be rendered using the textRendering attribute.
Attribute Name: textString (GML), text_string (GeoPackage), text_string (Vector Tiles)
Type: String
Multiplicity: [1]
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