Class: PointVector

Inherits:
GeoVector show all
Includes:
GeoCalc, PointOps, VectorOps
Defined in:
lib/geo_vectors/point_vector.rb,
lib/geo_vectors/point_vector/point_ops.rb,
lib/geo_vectors/point_vector/vector_ops.rb

Defined Under Namespace

Modules: PointOps, VectorOps

Instance Attribute Summary collapse

Attributes inherited from GeoVector

#unit

Class Method Summary collapse

Instance Method Summary collapse

Methods included from PointOps

#add_to_point, #add_to_point!, #sub_from_point, #sub_from_point!

Methods included from VectorOps

#add, #add!, #random_vector, #sub, #sub!

Methods inherited from GeoVector

#/, #add, #add!, #scale, #sub, #sub!

Constructor Details

#initialize(*args) ⇒ PointVector

Returns a new instance of PointVector.



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# File 'lib/geo_vectors/point_vector.rb', line 17

def initialize *args
  if args[0].kind_of?(GeoPoint) && args.size == 1
    @point = args[0] 
  else
    args = normalize_points(args[0], args[1]) if args.only_kinds_of?(GeoPoint) && args.size == 2
    @point = GeoPoint.new *args
  end
end

Instance Attribute Details

#point ⇒ Object

Returns the value of attribute point.



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# File 'lib/geo_vectors/point_vector.rb', line 14

def point
  @point
end

Class Method Details

.origin ⇒ Object 



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# File 'lib/geo_vectors/point_vector.rb', line 26

def self.origin
  [0, 0].geo_point
end

Instance Method Details

#bearing ⇒ Object 



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# File 'lib/geo_vectors/point_vector.rb', line 39

def bearing
  origin.bearing_to(point).to_precision(2).to_f
end

#direction ⇒ Object 



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# File 'lib/geo_vectors/point_vector.rb', line 30

def direction
  brng = bearing
  begin
    bearing_to_dir brng
  rescue
    brng
  end
end

#distance(unit = :kms) ⇒ Object 



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# File 'lib/geo_vectors/point_vector.rb', line 51

def distance unit = :kms
  origin.distance_to(point).send unit
end

#length(unit = :kms) ⇒ Object 



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# File 'lib/geo_vectors/point_vector.rb', line 47

def length unit = :kms
  origin.distance_to(point)
end

#reverse ⇒ Object 



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# File 'lib/geo_vectors/point_vector.rb', line 64

def reverse
  self.dup.reverse!
end

#reverse! ⇒ Object 



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# File 'lib/geo_vectors/point_vector.rb', line 68

def reverse!
  self.point.reverse_point!
  self    
end

#scale!(scalar) ⇒ Object 



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# File 'lib/geo_vectors/point_vector.rb', line 58

def scale! scalar
  self.lat = self.lat * scalar
  self.lng = self.lng * scalar
  self
end

#x ⇒ Object 



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# File 'lib/geo_vectors/point_vector.rb', line 55

def x; lng; end

#y ⇒ Object 



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# File 'lib/geo_vectors/point_vector.rb', line 56

def y; lat; end