[OGC 14-002] is mainly based on the use case of having to highlight some element in a georeferenced image or in a map. The "label" element will usually be a text or an image. But in other use cases, there is a need to have linear annotations. A second deviation of [OGC 14-002] is that, in the case that a linear annotation serves as a connector between a text annotation and a feature, it may be important to have a geometrically precise description of the connector (as opposed to have a client draw the connector based on the position of a label and another feature).
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comment (en)
[OGC 14-002] is mainly based on the use case of having to highlight some element in a georeferenced image or in a map. The "label" element will usually be a text or an image. But in other use cases, there is a need to have linear annotations. A second deviation of [OGC 14-002] is that, in the case that a linear annotation serves as a connector between a text annotation and a feature, it may be important to have a geometrically precise description of the connector (as opposed to have a client draw the connector based on the position of a label and another feature).
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definition (da)
linear marking on illustrative material for the purpose of clarification
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definition (en)
linear marking on illustrative material for the purpose of clarification
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example (da)
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example (en)
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gmlNote
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modelleringsnote
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source
based on [ISO 19117:2012, 4.1]
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Constraint
Type
Status
geometryDataTypeConstraint
Invariant
Approved
Details:
The geometry shall use linear interpolation.<br/>Note: In a GML encoding, this means that the geometry, which is a curve, must have a geometry type that is one of the following [GML SF]:<br/>* gml:LineString<br/>* gml:Curve consisting of segments having type gml:LineStringSegment<br/>
