Feature type
This section describes the single feature type that makes up the OS MasterMap Topography Layer – Building Height Attribute product. The Building Height Attribute feature type has 10 attributes. The following information is given about each attribute:
Attribute Name and Definition
The name of the attribute and what it is describing.
Attribute Type
The nature of the attribute. The following values may occur:
| Type | Description |
|---|---|
Date | Specifies a day within the Gregorian calendar in the format YYYY-MM-DD. |
Integer | Any positive or negative whole number or zero. |
Real | A floating point number. |
CharacterString | An ordered set of characters. |
Multiplicity
Describes how many times this element is expected to be populated in the data. An attribute may be optional or mandatory within the product as denoted by the following:
[1] indicates that the attribute is mandatory and can only occur once.
[0..1] indicates that the attribute is optional; if present, it only occurs once.
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