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Contents
# Reader - fgdc to internal data structure
# unpack fgdc map grid coordinate system
# History:
# Stan Smith 2018-10-04 original script
require 'nokogiri'
require_relative '../mapProjections/projection_transverseMercator'
module ADIWG
module Mdtranslator
module Readers
module Fgdc
module MapGridUtm
def self.unpack(xUTM, hProjection, hResponseObj)
# grid system 4.1.2.2.2 (utm) - universal transverse mercator
hGridSystemId = hProjection[:gridIdentifier]
hProjectionId = hProjection[:projectionIdentifier]
hGridSystemId[:identifier] = 'utm'
hGridSystemId[:name] = 'Universal Transverse Mercator' if hGridSystemId[:name].nil?
# grid system 4.1.2.2.2.1 (utmzone) - utm zone number {-60..-1, 1..60} (required)
# -> ReferenceSystemParameters.projection.gridZone
zone = xUTM.xpath('./utmzone').text
unless zone.empty?
hProjection[:gridZone] = zone
end
if zone.empty?
hResponseObj[:readerExecutionMessages] << 'WARNING: FGDC reader: UTM zone number is missing'
end
# + transverse mercator (required)
xTransMer = xUTM.xpath('./transmer')
unless xTransMer.empty?
hProjectionId[:identifier] = 'transverseMercator'
hProjectionId[:name] = 'Transverse Mercator'
return TransverseMercatorProjection.unpack(xTransMer, hProjection, hResponseObj)
end
# error message
hResponseObj[:readerExecutionMessages] <<
'WARNING: FGDC reader: UTM transverse mercator definition is missing'
return hProjection
end
end
end
end
end
end
Version data entries
38 entries across 38 versions & 1 rubygems