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 collapse
-
#latitude ⇒ Float
The latitude in degrees.
-
#longitude ⇒ Float
The longitude in degrees.
Instance Method Summary collapse
-
#initialize(**args) ⇒ LatLng
constructor
A new instance of LatLng.
-
#update!(**args) ⇒ Object
Update properties of this object.
Methods included from Core::JsonObjectSupport
Methods included from Core::Hashable
Constructor Details
#initialize(**args) ⇒ LatLng
Returns a new instance of LatLng.
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# File 'generated/google/apis/vision_v1/classes.rb', line 1216 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
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# File 'generated/google/apis/vision_v1/classes.rb', line 1209 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
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# File 'generated/google/apis/vision_v1/classes.rb', line 1214 def longitude @longitude end |
Instance Method Details
#update!(**args) ⇒ Object
Update properties of this object
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# File 'generated/google/apis/vision_v1/classes.rb', line 1221 def update!(**args) @latitude = args[:latitude] if args.key?(:latitude) @longitude = args[:longitude] if args.key?(:longitude) end |