Class: Google::Apis::VisionV1::LatLng

Inherits:

Object

• Object
• Google::Apis::VisionV1::LatLng

Includes:

Core::Hashable, Core::JsonObjectSupport

Defined in:

generated/google/apis/vision_v1/classes.rb,
generated/google/apis/vision_v1/representations.rb,
generated/google/apis/vision_v1/representations.rb

Overview

An object representing a latitude/longitude pair. This is expressed as a pair of doubles representing degrees latitude and degrees longitude. Unless specified otherwise, this must conform to the WGS84 standard. Values must be within normalized ranges. Example of normalization code in Python: def NormalizeLongitude(longitude): """Wraps decimal degrees longitude to [-180.0, 180.0].""" q, r = divmod(longitude, 360.0) if r > 180.0 or (r == 180.0 and q <= -1.0): return r - 360.0 return r def NormalizeLatLng(latitude, longitude): """Wraps decimal degrees latitude and longitude to [-90.0, 90.0] and [-180.0, 180.0], respectively.""" r = latitude % 360.0 if r <= 90.0: return r, NormalizeLongitude(longitude) elif r >= 270.0: return r - 360, NormalizeLongitude(longitude) else: return 180 - r, NormalizeLongitude(longitude + 180.0) assert 180.0 == NormalizeLongitude(180.0) assert -180.0 == NormalizeLongitude(-180.0) assert -179.0 == NormalizeLongitude(181.0) assert (0.0, 0.0) == NormalizeLatLng(360.0, 0.0) assert (0.0, 0.0) == NormalizeLatLng(-360.0, 0.0) assert (85.0, 180.0) == NormalizeLatLng(95.0, 0.0) assert (-85.0, -170.0) == NormalizeLatLng(-95.0, 10.0) assert (90.0, 10.0) == NormalizeLatLng(90.0, 10.0) assert (-90.0, -10.0) == NormalizeLatLng(-90.0, -10.0) assert (0.0, -170.0) == NormalizeLatLng(-180.0, 10.0) assert (0.0, -170.0) == NormalizeLatLng(180.0, 10.0) assert (-90.0, 10.0) == NormalizeLatLng(270.0, 10.0) assert (90.0, 10.0) == NormalizeLatLng(-270.0, 10.0)

Instance Attribute Summary

• #latitude ⇒ Float

  The latitude in degrees.

• #longitude ⇒ Float

  The longitude in degrees.

Instance Method Summary

• #initialize(**args) ⇒ LatLng constructor

  A new instance of LatLng.

• #update!(**args) ⇒ Object

  Update properties of this object.

Methods included from Core::JsonObjectSupport

#to_json

Methods included from Core::Hashable

process_value, #to_h

Constructor Details

#initialize(**args) ⇒ LatLng

Returns a new instance of LatLng

# File 'generated/google/apis/vision_v1/classes.rb', line 1784

def initialize(**args)
   update!(**args)
end

Instance Attribute Details

#latitude ⇒ Float

The latitude in degrees. It must be in the range [-90.0, +90.0]. Corresponds to the JSON property latitude

Returns:

• (Float)

# File 'generated/google/apis/vision_v1/classes.rb', line 1777

def latitude
  @latitude
end

#longitude ⇒ Float

The longitude in degrees. It must be in the range [-180.0, +180.0]. Corresponds to the JSON property longitude

Returns:

• (Float)

# File 'generated/google/apis/vision_v1/classes.rb', line 1782

def longitude
  @longitude
end

Instance Method Details

#update!(**args) ⇒ Object

Update properties of this object

# File 'generated/google/apis/vision_v1/classes.rb', line 1789

def update!(**args)
  @latitude = args[:latitude] if args.key?(:latitude)
  @longitude = args[:longitude] if args.key?(:longitude)
end