Class: LayersOfLondon::Booth::MapTool::Square

Inherits:
ApplicationRecord show all
Includes:
AASM
Defined in:
app/models/layers_of_london/booth/map_tool/square.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.grid_coordinates ⇒ Object 



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# File 'app/models/layers_of_london/booth/map_tool/square.rb', line 51

def self.grid_coordinates
  config = LayersOfLondon::Booth::MapTool.configuration
  down = (config.squares_x + 1).times.collect do |col|
    top = config.north_west.endpoint(90,col*config.square_size, units: :meters)
    bottom = top.endpoint(180, config.squares_y*config.square_size, units: :meters)
    [
      top.to_a.reverse,
      bottom.to_a.reverse
    ]
  end

  across = (config.squares_y + 1).times.collect do |col|
    left = config.north_west.endpoint(180,col*config.square_size, units: :meters)
    right = left.endpoint(90, config.squares_x*config.square_size, units: :meters)
    [
      left.to_a.reverse,
      right.to_a.reverse
    ]
  end

  down + across
end

Instance Method Details

#centroid ⇒ Object 



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# File 'app/models/layers_of_london/booth/map_tool/square.rb', line 137

def centroid
  north_west.midpoint_to(south_east)
end

#editable? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/layers_of_london/booth/map_tool/square.rb', line 141

def editable?
  !aasm_state.in?(["done", "flagged", "verified"])
end

#north_east ⇒ Object 



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# File 'app/models/layers_of_london/booth/map_tool/square.rb', line 125

def north_east
  north_west.endpoint(90, square_size, units: :meters)
end

#north_west ⇒ Object 



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# File 'app/models/layers_of_london/booth/map_tool/square.rb', line 121

def north_west
  Geokit::LatLng.new(north_west_lat, north_west_lng)
end

#south_east ⇒ Object 



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# File 'app/models/layers_of_london/booth/map_tool/square.rb', line 133

def south_east
  south_west.endpoint(90, square_size, units: :meters)
end

#south_west ⇒ Object 



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# File 'app/models/layers_of_london/booth/map_tool/square.rb', line 129

def south_west
  north_west.endpoint(180, square_size, units: :meters)
end

#to_geojson(padding: 0) ⇒ Object 



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# File 'app/models/layers_of_london/booth/map_tool/square.rb', line 83

def to_geojson(padding: 0)
  distance_diagonally = CMath.sqrt((padding * padding) + (padding * padding))
  north_west_padded = padding.zero? ? north_west : north_west.endpoint(315,distance_diagonally, units: :meters)
  north_east_padded = padding.zero? ? north_east : north_east.endpoint(45,distance_diagonally, units: :meters)
  south_east_padded = padding.zero? ? south_east : south_east.endpoint(135,distance_diagonally, units: :meters)
  south_west_padded = padding.zero? ? south_west : south_west.endpoint(225,distance_diagonally, units: :meters)
  {
    type: "Feature",
    geometry: {
      type: "Polygon",
      coordinates: [
        # [
          [
            north_west.to_a.reverse,
            south_west.to_a.reverse,
            south_east.to_a.reverse,
            north_east.to_a.reverse,
            north_west.to_a.reverse
          ]#,
        #   [
        #     LayersOfLondon::Booth::MapTool.configuration.north_west.to_a.reverse,
        #     LayersOfLondon::Booth::MapTool.configuration.north_east.to_a.reverse,
        #     LayersOfLondon::Booth::MapTool.configuration.south_east.to_a.reverse,
        #     LayersOfLondon::Booth::MapTool.configuration.south_west.to_a.reverse,
        #     LayersOfLondon::Booth::MapTool.configuration.north_west.to_a.reverse,
        #   ]
        # ]

      ]
    },
    properties: {
      id: id,
      state: aasm_state,
      centroid: centroid.to_a.collect {|coord| coord.round(5)}
    }
  }
end

#to_json(padding: 0) ⇒ Object 



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# File 'app/models/layers_of_london/booth/map_tool/square.rb', line 74

def to_json(padding: 0)
  # {id: id, state: {label: aasm_state, description: aasm_state.humanize}, geojson: to_geojson(padding: padding)}
  #
  state = {label: aasm_state, description: aasm_state.humanize}
  state.merge!({user: {id: user.id}}) if aasm_state === "done"

  {id: id, geojson: to_geojson(padding: padding)}.merge({state: state})
end