geometa (version 0.2-0)

GMLConventionalUnit: GMLConventionalUnit

Description

GMLConventionalUnit

Usage

GMLConventionalUnit

Value

Object of R6Class for modelling an GML derived unit

Format

R6Class object.

Fields

conversionToPreferredUnit

roughConversionToPreferredUnit

derivationUnitTerm

Methods

new(xml, defaults, id)

This method is used to instantiate a GML Base Unit

addDerivationUnitTerm(uom, exponent)

Adds a derivation unit term, made of a uom reference, and an exponent which can be negative/positive but not equal to zero.

delDerivationUnitTerm(uom, exponent)

Deletes a derivation unit term

setConversionToPreferredUnit(uom, factor, rough)

Sets the conversion to preferred unit. rough is FALSE by default

References

ISO 19136:2007 Geographic Information -- Geographic Markup Language. http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=32554

OGC Geography Markup Language. http://www.opengeospatial.org/standards/gml

Examples

# NOT RUN {
gml <- GMLConventionalUnit$new()
   gml$setDescriptionReference("someref")
   gml$setIdentifier("identifier", "codespace")
   gml$addName("name1", "codespace")
   gml$addName("name2", "codespace")
   gml$setQuantityTypeReference("someref")
   gml$setCatalogSymbol("symbol")
   gml$addDerivationUnitTerm("uomId", 2L)
   gml$setConversionToPreferredUnit("uomId", 2L)
# }