SA: Classes of the Namespace sa
In sos4R: Client for OGC Sensor Observation Services

Description Usage Arguments Value Objects from the Class Slots Extends Methods Author(s) References Examples

Classes and construction functions for elements from the OGC specification “Observations and Measurements - Part 2 - Sampling Features”.

1 2	SaSamplingPoint(sampledFeatures, position, relatedObservation = list(NA), relatedSamplingFeature = list(NA), surveyDetails = NA, id = NA_character_)

`sampledFeatures`	~~
`position`	~~
`relatedObservation`	~~
`relatedSamplingFeature`	~~
`surveyDetails`	~~
`id`	~~

Construction functions: An object of the respective class.

Objects can be created by calls to the construction functions of the form SaSamplingPoint(...).

sampledFeatures:: Object of class "list" which contains the sampled features.
position:: Object of class "GmlPointProperty" which contains the position of a feature.
relatedObservation:: Object of class "list" which contains identifiers of related observations.
relatedSamplingFeature:: Object of class "list" which contains identifiers of related sampling features.
surveyDetails:: Object of class "ANY" which can contain information about survey details (which are currently no modeled in an R class).
id:: The identifier of a sampling elements (object of class "character").
shape:: Object of class "ANY" which could be used to model the shape of a sampling surface.
area:: Object of class "ANY" which could be used to model the area of a sampling surface.

SaSamplingPoint and SaSamplingSurface: Class "GmlFeature", directly. Class "GmlFeatureOrNULL", by class "GmlFeature", distance 2.

show: signature(object = "SaSamplingPoint"): ...
show: signature(object = "SaSamplingSurface"): ...
sosCoordinates: signature(object = "SaSamplingPoint"): access to the coordinates of the feature.
sosFeatureIds: signature(object = "SaSamplingPoint"): access to the identifier of the feature.
sosFeaturesOfInterest: signature(object = "SaSamplingPoint"): access to the feature of interest, i.e. the point itself.

Daniel Nuest daniel.nuest@uni-muenster.de

Simon Cox (Ed.), Observations and Measurements - Part 2 - Sampling Features, OGC 07-002r3

showClass("SaSamplingPoint")

# create sampling point
SaSamplingPoint(sampledFeatures = list("feature1", "feature2"),
                position = GmlPointProperty(href = "http://link.to/point"))