sos4R (version 0.1-15)

GmlDirectPosition-class: Classes and Construction Functions from the GML Namespace

Description

Classes for GML elements and their respective construction functions. See the referenced specification for details.

Usage

GmlDirectPosition(pos, srsName = as.character(NA), srsDimension = NA_integer_, axisLabels = as.character(NA), uomLabels = as.character(NA))
GmlDirectPositionLatLon(lat, lon, srsName = as.character(NA), srsDimension = NA_integer_, axisLabels = as.character(NA), uomLabels = as.character(NA))
GmlEnvelope(lowerCorner, upperCorner, srsName = as.character(NA), srsDimension = NA_integer_, axisLabels = as.character(NA), uomLabels = as.character(NA))
GmlFeatureCollection(featureMembers, id = as.character(NA))
GmlPoint(pos, id = as.character(NA), srsName = as.character(NA), srsDimension = NA_integer_, axisLabels = as.character(NA), uomLabels = as.character(NA))
GmlPointProperty(href = as.character(NA), point = NULL)
GmlFeatureProperty(href = as.character(NA), feature = NULL)
GmlTimeInstant(timePosition, id = as.character(NA), relatedTimes = list(NA), frame = as.character(NA))
GmlTimeInstantProperty(href = as.character(NA), time = NULL)
GmlTimeInterval(interval, unit, radix = NA, factor = NA)
GmlTimePeriod(begin = NULL, beginPosition = NULL, end = NULL, endPosition = NULL, duration = as.character(NA), timeInterval = NULL, id = as.character(NA), relatedTimes = list(NA), frame = as.character(NA))
GmlTimePosition(time, frame = as.character(NA), calendarEraName = as.character(NA), indeterminatePosition = as.character(NA))
GmlMeasure(value, uom)

Arguments

axisLabels

See corresponding slot description.

begin

See corresponding slot description.

beginPosition

See corresponding slot description.

calendarEraName

See corresponding slot description.

duration

See corresponding slot description.

end

See corresponding slot description.

endPosition

See corresponding slot description.

factor

See corresponding slot description.

feature

See corresponding slot description.

featureMembers

See corresponding slot description.

frame

See corresponding slot description.

href

See corresponding slot description.

id

See corresponding slot description.

indeterminatePosition

See corresponding slot description.

interval

See corresponding slot description.

lat

Latitude coordinate parameter.

lon

Longitue coordinate parameter.

lowerCorner

See corresponding slot description.

point

See corresponding slot description.

pos

See corresponding slot description.

radix

See corresponding slot description.

relatedTimes

See corresponding slot description.

srsDimension

See corresponding slot description.

srsName

See corresponding slot description.

time

See corresponding slot description.

timeInterval

See corresponding slot description.

timePosition

See corresponding slot description.

unit

See corresponding slot description.

uomLabels

See corresponding slot description.

upperCorner

See corresponding slot description.

value

See slot description.

uom

See slot description.

Value

• The construction functions return an object of the respective class.

Objects from this classes

Objects can be created by calling the according construction functions. e.g. in the form GmlPoint(...).

Extends

GmlFeature: Class "GmlFeatureOrNULL", directly.

GmlFeatureCollection: Class "GmlFeature", directly. Class "GmlFeatureOrNULL", by class "GmlFeature", distance 2.

GmlLineString: Class "GmlGeometry", directly.

GmlPoint: Class "GmlGeometry", directly.

GmlTimeGeometricPrimitive: Class "GmlTimePrimitive", directly. Class "GmlTimeObject", by class "GmlTimePrimitive", distance 2. Class "GmlTimeObjectOrNULL", by class "GmlTimePrimitive", distance 3.

GmlTimeInstant: Class "GmlTimeGeometricPrimitive", directly. Class "GmlTimeInstantOrNULL", directly. Class "GmlTimePrimitive", by class "GmlTimeGeometricPrimitive", distance 2. Class "GmlTimeObject", by class "GmlTimeGeometricPrimitive", distance 3. Class "GmlTimeObjectOrNULL", by class "GmlTimeGeometricPrimitive", distance 4.

GmlTimeInstantProperty: Class "GmlTimeGeometricPrimitive", directly. Class "GmlTimeInstantPropertyOrNULL", directly. Class "GmlTimePrimitive", by class "GmlTimeGeometricPrimitive", distance 2. Class "GmlTimeObject", by class "GmlTimeGeometricPrimitive", distance 3. Class "GmlTimeObjectOrNULL", by class "GmlTimeGeometricPrimitive", distance 4.

GmlTimeInterval: Class "GmlTimeIntervalOrNULL", directly.

GmlTimeObject: Class "GmlTimeObjectOrNULL", directly.

GmlTimePrimitive: Class "GmlTimeObject", directly. Class "GmlTimeObjectOrNULL", by class "GmlTimeObject", distance 2.

Virtual Classes

No objects may be created from the following virtual classes: GmlFeature, GmlTimeObject, GmlTimePrimitive, GmlTimeGeometricPrimitive, GmlGeometry, all ...OrNULL classes.

Details

The "...OrNULL" classes are used to model optional slots.

References

GML specification at http://www.opengeospatial.org/standards/gml.

Examples

showClass("GmlDirectPosition")
showClass("GmlEnvelope")
showClass("GmlFeature")
showClass("GmlFeatureCollection")
showClass("GmlFeatureOrNULL")
showClass("GmlFeatureProperty")
showClass("GmlGeometry")
showClass("GmlLineString")
showClass("GmlPoint")
showClass("GmlPointProperty")
showClass("GmlPolygon")
showClass("GmlTimeGeometricPrimitive")
showClass("GmlTimeInstant")
showClass("GmlTimeInstantOrNULL")
showClass("GmlTimeInstantProperty")
showClass("GmlTimeInstantPropertyOrNULL")
showClass("GmlTimeInterval")
showClass("GmlTimeIntervalOrNULL")
showClass("GmlTimeObject")
showClass("GmlTimeObjectOrNULL")
showClass("GmlTimePeriod")
showClass("GmlTimePosition")
showClass("GmlTimePositionOrNULL")
showClass("GmlTimePrimitive")

# create direct position
pos1 <- GmlDirectPosition(pos = "7.0 52.0")
show(pos1)

# create envelope
env1 <- GmlEnvelope(upperCorner = pos1, lowerCorner = GmlDirectPosition("6.0 51.0"))
print(env1)

# wrap elements in feature collection
GmlFeatureCollection(id = "001", featureMembers=list(pos1, env1))

# create point with ID
point1 <- GmlPoint(pos = pos1, id = "002")

# create point properties
GmlPointProperty(href = "http://link.to/point")
GmlPointProperty(point = point1)

# time interval of one day
GmlTimeInterval(interval = "1", unit = "d")

# referenced feature
GmlFeatureProperty(href = "http://link.to/feature")

# create a time position and wrap it into a time instant
timePos1 <- GmlTimePosition(time = as.POSIXct("2010-01-01"))

# create direct or referenced time instant
timeInst1 <- GmlTimeInstant(timePosition = timePos1)
timeInst1

GmlTimeInstantProperty(href = "http://link.to/timeInstant")

# create different variants of time periods
# one hour with time positions
GmlTimePeriod(beginPosition = timePos1, endPosition = GmlTimePosition(time = timePos1@time+3600))

# one week backwards from now
aWeekAgo <- GmlTimeInstantProperty(time = GmlTimeInstant(time = GmlTimePosition(time = Sys.time()-(3600*24*7))))
now <- GmlTimeInstantProperty(time = GmlTimeInstant(time = GmlTimePosition(time = Sys.time())))
GmlTimePeriod(begin = aWeekAgo, end = now)