Class: Kluster::Clusterer

Inherits:
Object
  • Object
show all
Includes:
Geocoder::Calculations
Defined in:
lib/kluster/clusterer.rb

Instance Method Summary collapse

Constructor Details

#initialize(pins) ⇒ Clusterer

Returns a new instance of Clusterer.



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# File 'lib/kluster/clusterer.rb', line 8

def initialize(pins)
  @pins = pins
end

Instance Method Details

#clusterize(radius) ⇒ Object 



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# File 'lib/kluster/clusterer.rb', line 12

def clusterize(radius)
  clustered_annotations = []
  @pins.each do |pin|
    is_containing = false
    if clustered_annotations.empty?
      new_cluster = Cluster.new(pin)
      clustered_annotations << new_cluster
    else
      clustered_annotations.each do |cluster|
        if location_near_to_other_location(pin.coordinate, cluster.coordinate, radius)
          is_containing = true
          cluster.pins << pin
          break
        end
      end

      if !is_containing
        new_cluster = Cluster.new(pin)
        clustered_annotations << new_cluster
      end
    end
  end

  return_array = []
  clustered_annotations.each do |cluster|
    if cluster.pins.length <= 1
       return_array << cluster.pins.last
    else
      return_array << cluster
    end
  end
  return_array
end