Class: Charta::MultiPolygon

Inherits:
GeometryCollection show all
Defined in:
lib/charta/multi_polygon.rb

Overview

Represent a Geometry with contains only polygons

Instance Method Summary collapse

Methods inherited from GeometryCollection

empty, #to_json_feature_collection

Methods inherited from Geometry

#!=, #==, #area, #bounding_box, #buffer, #centroid, #collection?, #convert_to, #difference, #empty?, #ewkt, factory, feature, #feature, #feature=, #find_srid, #flatten_multi, from_ewkt, from_rgeo, #initialize, #inspect, #intersection, #intersects?, #merge, #method_missing, #point_on_surface, #respond_to_missing?, #srid, srs_database, #surface?, #to_binary, #to_ewkt, #to_geojson, #to_json_feature, #to_json_object, #to_rgeo, #to_svg, #to_svg_path, #to_text, #transform, #type

Constructor Details

This class inherits a constructor from Charta::Geometry

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Charta::Geometry

Instance Method Details

#each_polygon(&block) ⇒ Object 



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# File 'lib/charta/multi_polygon.rb', line 4

def each_polygon(&block)
  if block.arity == 1
    polygons.each(&block)
  elsif block.arity == 2
    polygons.each_with_index do |polygon, index|
      yield polygon, index + 1
    end
  else
    raise 'Cannot browse each polygon without parameter'
  end
end

#polygons ⇒ Object

Extract polygons ordered by ‘PointOnSurface’ position



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# File 'lib/charta/multi_polygon.rb', line 17

def polygons
  @polygons ||= feature.elements.map do |polygon|
    Polygon.new(polygon)
  end || []
end