Feature Representation

In addition to the generic FME feature attributes that FME Workbench adds to all features (see About Feature Attributes on page 7), this format adds the format-specific attributes described in this section.

Feature Type

Description

Point

Point feature (v1.0)

VectorMapPoint Point feature (v1.1)

Line

Linear feature

Text

Text feature

RoadCLine

Linear feature

Area

Area feature

Every feature type contains a feature identifier, a feature code, a feature description, and geometry.

Example:

<osgb:Line fid='ID_1030>
<osgb:featureCode>15401</osgb:featureCode>
<osgb:featureDescription>OS VectormMap Line</osgb:featureDescription>
<osgb:polyline>

The featureCode helps to identify and classify a feature from over 130 features, which are supplied using Lines, Points, Texts, and Polygons.

The OS VectorMap Local features may be identified by its xml_type attribute. The valid values for this attribute are:

Point, VectorMapPoint

Features having their xml_type set to xml_point are single coordinate features.

Line

Features having their xml_type set to xml_line are polyline features and have at least two coordinates.

Text

Features having their xml_type set to xml_text are annotation features, and may have the additional attributes: text string, orientation, height of text, anchor point, font.

RoadCLine

Features having their xml_type attribute set to xml_line is a line feature and may have the additional attributes : road name, road number.

Area

Features having their xml_type set to xml_area is a single closed polyline feature (simple closed polygon). A simple closed polygon contains at least four coordinates, with the first and last coordinate being equal.