Module: RGeo::ImplHelper::BasicGeometryCollectionMethods

Included in:
Cartesian::GeometryCollectionImpl, Cartesian::MultiLineStringImpl, Cartesian::MultiPointImpl, Cartesian::MultiPolygonImpl, Geographic::ProjectedGeometryCollectionImpl, Geographic::ProjectedMultiLineStringImpl, Geographic::ProjectedMultiPointImpl, Geographic::ProjectedMultiPolygonImpl, Geographic::SphericalGeometryCollectionImpl, Geographic::SphericalMultiLineStringImpl, Geographic::SphericalMultiPointImpl, Geographic::SphericalMultiPolygonImpl
Defined in:
lib/rgeo/impl_helper/basic_geometry_collection_methods.rb

Overview

:nodoc:

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#elements ⇒ Object (readonly)

Returns the value of attribute elements.



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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 12

def elements
  @elements
end

Instance Method Details

#[](n) ⇒ Object 



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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 32

def [](n)
  @elements[n]
end

#dimension ⇒ Object 



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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 40

def dimension
  @dimension ||= @elements.map(&:dimension).max || -1
end

#each(&block) ⇒ Object 



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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 36

def each(&block)
  @elements.each(&block)
end

#geometry_n(n) ⇒ Object 



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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 28

def geometry_n(n)
  n < 0 ? nil : @elements[n]
end

#geometry_type ⇒ Object 



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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 44

def geometry_type
  Feature::GeometryCollection
end

#hash ⇒ Object 



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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 60

def hash
  @hash ||= begin
    hash = [factory, geometry_type].hash
    @elements.inject(hash) { |h, g| (1_664_525 * h + g.hash).hash }
  end
end

#initialize(factory, elements) ⇒ Object 



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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 14

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

#is_empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 48

def is_empty?
  @elements.size == 0
end

#num_geometries ⇒ Object 



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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 24

def num_geometries
  @elements.size
end

#rep_equals?(rhs) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rgeo/impl_helper/basic_geometry_collection_methods.rb', line 52

def rep_equals?(rhs)
  if rhs.is_a?(self.class) && rhs.factory.eql?(@factory) && @elements.size == rhs.num_geometries
    rhs.each_with_index { |p, i| return false unless @elements[i].rep_equals?(p) }
  else
    false
  end
end