Module: ADIWG::Mdtranslator::Readers::MdJson::ProjectionParameters

Defined in:

lib/adiwg/mdtranslator/readers/mdJson/modules/module_projectionParameters.rb

Class Method Summary

• .unpack(hProjection, responseObj, inContext = nil) ⇒ Object

Class Method Details

.unpack(hProjection, responseObj, inContext = nil) ⇒ Object

# File 'lib/adiwg/mdtranslator/readers/mdJson/modules/module_projectionParameters.rb', line 20

def self.unpack(hProjection, responseObj, inContext = nil)

   @MessagePath = ADIWG::Mdtranslator::Readers::MdJson::MdJson

   # return nil object if input is empty
   if hProjection.empty?
      @MessagePath.issueWarning(650, responseObj, inContext)
      return nil
   end

   # instance classes needed in script
   intMetadataClass = InternalMetadata.new
   intProjection = intMetadataClass.newProjection

   outContext = 'projection parameters'
   outContext = inContext + ' ' + outContext unless inContext.nil?

   # projection parameters - projection identifier {identifier} (required)
   # add name to identifier object
   if hProjection.has_key?('projectionIdentifier')
      unless hProjection['projectionIdentifier'].empty?
         hProjectionId = hProjection['projectionIdentifier']
         hReturn = Identifier.unpack(hProjectionId, responseObj, outContext)
         unless hReturn.nil?
            if hProjectionId.has_key?('name')
               unless hProjectionId['name'] == ''
                  hReturn[:name] = hProjectionId['name']
               end
            end
            intProjection[:projectionIdentifier] = hReturn
         end
      end
   end
   if intProjection[:projectionIdentifier].empty?
      @MessagePath.issueError(651, responseObj, inContext)
   end

   # projection parameters - grid system identifier {identifier}
   # add name to identifier object
   if hProjection.has_key?('gridIdentifier')
      unless hProjection['gridIdentifier'].empty?
         hGridSystemId = hProjection['gridIdentifier']
         hReturn = Identifier.unpack(hProjection['gridIdentifier'], responseObj, outContext)
         unless hReturn.nil?
            if hGridSystemId.has_key?('name')
               unless hGridSystemId['name'] == ''
                  hReturn[:name] = hGridSystemId['name']
               end
            end
            intProjection[:gridIdentifier] = hReturn
         end
      end
   end

   # projection parameters - zone
   if hProjection.has_key?('gridZone')
      unless hProjection['gridZone'] == ''
         intProjection[:gridZone] = hProjection['gridZone']
      end
   end

   # projection parameters - standard parallel 1
   if hProjection.has_key?('standardParallel1')
      unless hProjection['standardParallel1'] == ''
         intProjection[:standardParallel1] = hProjection['standardParallel1']
      end
   end

   # projection parameters - standard parallel 2
   if hProjection.has_key?('standardParallel2')
      unless hProjection['standardParallel2'] == ''
         intProjection[:standardParallel2] = hProjection['standardParallel2']
      end
   end

   # projection parameters - longitude of central meridian
   if hProjection.has_key?('longitudeOfCentralMeridian')
      unless hProjection['longitudeOfCentralMeridian'] == ''
         intProjection[:longitudeOfCentralMeridian] = hProjection['longitudeOfCentralMeridian']
      end
   end

   # projection parameters - latitude of projection origin
   if hProjection.has_key?('latitudeOfProjectionOrigin')
      unless hProjection['latitudeOfProjectionOrigin'] == ''
         intProjection[:latitudeOfProjectionOrigin] = hProjection['latitudeOfProjectionOrigin']
      end
   end

   # projection parameters - false easting
   if hProjection.has_key?('falseEasting')
      unless hProjection['falseEasting'] == ''
         intProjection[:falseEasting] = hProjection['falseEasting']
      end
   end

   # projection parameters - false northing
   if hProjection.has_key?('falseNorthing')
      unless hProjection['falseNorthing'] == ''
         intProjection[:falseNorthing] = hProjection['falseNorthing']
      end
   end

   # projection parameters - false easting northing units
   if hProjection.has_key?('falseEastingNorthingUnits')
      unless hProjection['falseEastingNorthingUnits'] == ''
         intProjection[:falseEastingNorthingUnits] = hProjection['falseEastingNorthingUnits']
      end
   end

   # projection parameters - scale factor at equator
   if hProjection.has_key?('scaleFactorAtEquator')
      unless hProjection['scaleFactorAtEquator'] == ''
         intProjection[:scaleFactorAtEquator] = hProjection['scaleFactorAtEquator']
      end
   end

   # projection parameters - height of prospective point above surface
   if hProjection.has_key?('heightOfProspectivePointAboveSurface')
      unless hProjection['heightOfProspectivePointAboveSurface'] == ''
         intProjection[:heightOfProspectivePointAboveSurface] =
            hProjection['heightOfProspectivePointAboveSurface']
      end
   end

   # projection parameters - longitude of projection center
   if hProjection.has_key?('longitudeOfProjectionCenter')
      unless hProjection['longitudeOfProjectionCenter'] == ''
         intProjection[:longitudeOfProjectionCenter] = hProjection['longitudeOfProjectionCenter']
      end
   end

   # projection parameters - latitude of projection center
   if hProjection.has_key?('latitudeOfProjectionCenter')
      unless hProjection['latitudeOfProjectionCenter'] == ''
         intProjection[:latitudeOfProjectionCenter] = hProjection['latitudeOfProjectionCenter']
      end
   end

   # projection parameters - scale factor at center line
   if hProjection.has_key?('scaleFactorAtCenterLine')
      unless hProjection['scaleFactorAtCenterLine'] == ''
         intProjection[:scaleFactorAtCenterLine] = hProjection['scaleFactorAtCenterLine']
      end
   end

   # projection parameters - scale factor at meridian
   if hProjection.has_key?('scaleFactorAtCentralMeridian')
      unless hProjection['scaleFactorAtCentralMeridian'] == ''
         intProjection[:scaleFactorAtCentralMeridian] = hProjection['scaleFactorAtCentralMeridian']
      end
   end

   # projection parameters - straight vertical longitude from pole
   if hProjection.has_key?('straightVerticalLongitudeFromPole')
      unless hProjection['straightVerticalLongitudeFromPole'] == ''
         intProjection[:straightVerticalLongitudeFromPole] = hProjection['straightVerticalLongitudeFromPole']
      end
   end

   # projection parameters - scale factor at projection origin
   if hProjection.has_key?('scaleFactorAtProjectionOrigin')
      unless hProjection['scaleFactorAtProjectionOrigin'] == ''
         intProjection[:scaleFactorAtProjectionOrigin] = hProjection['scaleFactorAtProjectionOrigin']
      end
   end

   # projection parameters - azimuth angle
   if hProjection.has_key?('azimuthAngle')
      unless hProjection['azimuthAngle'] == ''
         intProjection[:azimuthAngle] = hProjection['azimuthAngle']
      end
   end

   # projection parameters - azimuth measure point longitude
   if hProjection.has_key?('azimuthMeasurePointLongitude')
      unless hProjection['azimuthMeasurePointLongitude'] == ''
         intProjection[:azimuthMeasurePointLongitude] = hProjection['azimuthMeasurePointLongitude']
      end
   end

   # projection parameters - oblique line points [] {obliqueLinePoint}
   if hProjection.has_key?('obliqueLinePoint')
      aItems = hProjection['obliqueLinePoint']
      aItems.each do |item|
         hReturn = ObliqueLinePoint.unpack(item, responseObj, outContext)
         unless hReturn.nil?
            intProjection[:obliqueLinePoints] << hReturn
         end
      end
   end

   # projection parameters - landsat number
   if hProjection.has_key?('landsatNumber')
      unless hProjection['landsatNumber'] == ''
         intProjection[:landsatNumber] = hProjection['landsatNumber']
      end
   end

   # projection parameters - landsat path
   if hProjection.has_key?('landsatPath')
      unless hProjection['landsatPath'] == ''
         intProjection[:landsatPath] = hProjection['landsatPath']
      end
   end

   # projection parameters - local projection [] {local}
   if hProjection.has_key?('local')
      unless hProjection['local'].empty?
         hReturn = LocalProjection.unpack(hProjection['local'], responseObj, outContext)
         unless hReturn.nil?
            intProjection[:local] = hReturn
         end
      end
   end

   return intProjection
end