Module: RGeo::ImplHelper::BasicMultiLineStringMethods

Included in:
Cartesian::MultiLineStringImpl, Geographic::ProjectedMultiLineStringImpl, Geographic::SphericalMultiLineStringImpl
Defined in:
lib/rgeo/impl_helper/basic_geometry_collection_methods.rb

Overview

:nodoc:

Instance Method Summary collapse

Instance Method Details

#boundary ⇒ Object 



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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 98

def boundary
  hash = {}
  @elements.each do |line|
    if !line.is_empty? && !line.is_closed?
      add_boundary(hash, line.start_point)
      add_boundary(hash, line.end_point)
    end
  end
  array = []
  hash.each do |_hval, data_|
    array << data_[0] if data_[1].odd?
  end
  factory.multipoint([array])
end

#contains?(rhs) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 117

def contains?(rhs)
  return super unless Feature::Point === rhs

  @elements.any? { |line| line.contains?(rhs) }
end

#coordinates ⇒ Object 



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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 113

def coordinates
  @elements.map(&:coordinates)
end

#geometry_type ⇒ Object 



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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 86

def geometry_type
  Feature::MultiLineString
end

#initialize(factory, elements) ⇒ Object 



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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 76

def initialize(factory, elements)
  self.factory = factory
  @elements = elements.map do |elem|
    elem = Feature.cast(elem, factory, Feature::LineString, :keep_subtype)
    raise Error::InvalidGeometry, "Could not cast #{elem}" unless elem
    elem
  end
  validate_geometry
end

#is_closed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 90

def is_closed?
  all?(&:is_closed?)
end

#length ⇒ Object 



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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 94

def length
  @elements.inject(0.0) { |sum, obj| sum + obj.length }
end