Class: ADIWG::Mdtranslator::Writers::Iso19115_3::Polygon

Inherits:
Object
  • Object
show all
Defined in:
lib/adiwg/mdtranslator/writers/iso19115_3/classes/class_polygon.rb

Instance Method Summary collapse

Constructor Details

#initialize(xml, hResponseObj) ⇒ Polygon

Returns a new instance of Polygon.



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# File 'lib/adiwg/mdtranslator/writers/iso19115_3/classes/class_polygon.rb', line 17

def initialize(xml, hResponseObj)
   @xml = xml
   @hResponseObj = hResponseObj
end

Instance Method Details

#writeXML(hGeoObject, hProperties, objId) ⇒ Object 



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# File 'lib/adiwg/mdtranslator/writers/iso19115_3/classes/class_polygon.rb', line 22

def writeXML(hGeoObject, hProperties, objId)

   # classes used
   geoPropClass = FeatureProperties.new(@xml, @hResponseObj)

   # polygon attributes
   attributes = {}

   # polygon attributes - gml:id (required)
   if objId.nil?
      @hResponseObj[:writerMissingIdCount] = @hResponseObj[:writerMissingIdCount].succ
      objId = 'polygon' + @hResponseObj[:writerMissingIdCount]
   else
      objId.gsub!(/[^0-9a-zA-Z]/, '')
   end
   attributes['gml:id'] = objId

   # polygon attributes - srsDimension
   s = AdiwgCoordinates.getDimension(hGeoObject[:coordinates])
   if !s.nil?
      attributes[:srsDimension] = s
   end

   # polygon attributes - srsName (GeoJSON is WGS84)
   attributes[:srsName] = 'WGS84'

   @xml.tag!('gml:Polygon', attributes) do

      # polygon - properties for Feature
      unless hProperties.empty?
         geoPropClass.writeXML(hProperties)
      end
      if hProperties.empty? && @hResponseObj[:writerShowTags]
         @xml.tag!('gml:description')
         @xml.tag!('gml:identifier', {'codeSpace' => ''})
         @xml.tag!('gml:name')
      end

      aPolygons = hGeoObject[:coordinates]
      aExterior = aPolygons[0]
      aInterior = aPolygons.drop(1)

      # polygon - exterior ring (required)
      unless aExterior.nil?
         @xml.tag!('gml:exterior') do
            @xml.tag!('gml:LinearRing') do
               aExterior.each do |aCoord|
                  s = aCoord[0].to_s + ' ' + aCoord[1].to_s
                  @xml.tag!('gml:pos', s)
               end
            end
         end
      end

      # polygon - interior rings
      aInterior.each do |aRing|
         @xml.tag!('gml:interior') do
            @xml.tag!('gml:LinearRing') do
               aRing.each do |aCoord|
                  s = aCoord[0].to_s + ' ' + aCoord[1].to_s
                  @xml.tag!('gml:pos', s)
               end
            end
         end
      end

   end # gml:Polygon tag
end