Module: RemoteTable::Shp

Defined in:
lib/remote_table/shp.rb

Overview

Mixed in to process SHP with the georuby library.

Instance Method Summary collapse

Instance Method Details

#_each ⇒ Object 



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# File 'lib/remote_table/shp.rb', line 4

def _each
  require 'geo_ruby'

  shp = Dir[File.join(local_copy.path, '*.shp')].first
  GeoRuby::Shp4r::ShpFile.open(shp) do |shapefile|
    shapefile.each do |row|
      hsh = {}
      row.data.attributes.each do |name, value|
        hsh[name] = value
      end

      envelope = row.geometry.envelope
      hsh['center'] = envelope.center
      hsh['upper_corner_x'] = envelope.upper_corner.x
      hsh['upper_corner_y'] = envelope.upper_corner.y
      hsh['lower_corner_x'] = envelope.lower_corner.x
      hsh['lower_corner_y'] = envelope.lower_corner.y

      yield hsh
    end
  end
ensure
  local_copy.cleanup
end