Class: NSWTopo::GeoJSON::Polygon

Inherits:
Object
  • Object
show all
Defined in:
lib/nswtopo/gis/geojson/polygon.rb

Instance Method Summary collapse

Instance Method Details

#bounds ⇒ Object 



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# File 'lib/nswtopo/gis/geojson/polygon.rb', line 13

def bounds
  @coordinates.first.transpose.map(&:minmax)
end

#validate! ⇒ Object 



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# File 'lib/nswtopo/gis/geojson/polygon.rb', line 6

def validate!
  @coordinates.inject(false) do |hole, ring|
    ring.reverse! if hole ^ ring.hole?
    true
  end
end

#wkt ⇒ Object 



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# File 'lib/nswtopo/gis/geojson/polygon.rb', line 17

def wkt
  @coordinates.map do |ring|
    ring.map do |point|
      point.join(" ")
    end.join(", ").prepend("(").concat(")")
  end.join(", ").prepend("POLYGON (").concat(")")
end