Class: Underpass::QL::Shape

Inherits:
Object
  • Object
show all
Defined in:
lib/underpass/ql/shape.rb

Overview

Contains factories for various RGeo shapes from ways and nodes parsed with the Parser class

Class Method Summary collapse

Class Method Details

.line_string_from_way(way, nodes) ⇒ Object 



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# File 'lib/underpass/ql/shape.rb', line 17

def self.line_string_from_way(way, nodes)
  f = RGeo::Geographic.spherical_factory(srid: 4326)
  f.line_string(
    way[:nodes].map do |n|
      f.point(nodes[n][:lon], nodes[n][:lat])
    end
  )
end

.open_way?(way) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/underpass/ql/shape.rb', line 8

def self.open_way?(way)
  way[:nodes].first == way[:nodes].last
end

.point_from_node(node) ⇒ Object 



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# File 'lib/underpass/ql/shape.rb', line 26

def self.point_from_node(node)
  f = RGeo::Geographic.spherical_factory(srid: 4326)
  f.point(node[:lon], node[:lat])
end

.polygon_from_way(way, nodes) ⇒ Object 



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# File 'lib/underpass/ql/shape.rb', line 12

def self.polygon_from_way(way, nodes)
  f = RGeo::Geographic.spherical_factory(srid: 4326)
  f.polygon(line_string_from_way(way, nodes))
end