Module: ADIWG::Mdtranslator::Readers::Fgdc::SpatialOrganization

Defined in:
lib/adiwg/mdtranslator/readers/fgdc/modules/module_spatialOrganization.rb

Class Method Summary collapse

Class Method Details

.unpack(xSpatialOrg, hResourceInfo, hResponseObj) ⇒ Object 



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# File 'lib/adiwg/mdtranslator/readers/fgdc/modules/module_spatialOrganization.rb', line 19

def self.unpack(xSpatialOrg, hResourceInfo, hResponseObj)

   # instance classes needed in script
   intMetadataClass = InternalMetadata.new

   # spatial organization 3.1 (indspref) - indirect spatial reference
   # -> resourceInfo.spatialReferenceSystems.systemIdentifier.identifier per NOAA
   # -> however definitions are not close
   indirect = xSpatialOrg.xpath('./indspref').text
   unless indirect.empty?
      hSystem = intMetadataClass.newSpatialReferenceSystem
      hIdentifier = intMetadataClass.newIdentifier
      hIdentifier[:identifier] = 'indirect'
      hIdentifier[:namespace] = 'FGDC'
      hIdentifier[:description] = indirect
      hSystem[:systemIdentifier] = hIdentifier
      hResourceInfo[:spatialReferenceSystems] << hSystem
   end

   # spatial organization 3.2 (direct) - direct spatial reference method
   # -> resourceInfo.spatialRepresentationTypes, translate FGDC to ISO as:
   # -> point = vector do 3.3
   # -> vector = vector do 3.3
   # -> raster = grid do 3.4
   direct = xSpatialOrg.xpath('./direct').text
   unless direct.empty?
      type = 'point' if direct == 'Point'
      type = 'vector' if direct == 'Vector'
      type = 'grid' if direct == 'Raster'
      hResourceInfo[:spatialRepresentationTypes] << type

      # spatial organization 3.3 (ptvctinfo) - point and vector object
      if type == 'vector' || type == 'point'
         xPtVec = xSpatialOrg.xpath('./ptvctinf')
         unless xPtVec.empty?
            PointVector.unpack(xPtVec, hResourceInfo, hResponseObj)
         end
      end

      # spatial organization 3.4 (rastinfo) - raster object
      if type == 'grid'
         xRaster = xSpatialOrg.xpath('./rastinfo')
         unless xRaster.empty?
            Raster.unpack(xRaster, hResourceInfo, hResponseObj)
         end
      end

   end

   return hResourceInfo

end