Class: RGeo::CoordSys::CS::PrimeMeridian

Inherits:
Info
  • Object
show all
Defined in:
lib/rgeo/coord_sys/cs/entities.rb

Overview

OGC spec description

A meridian used to take longitude measurements from.

Instance Attribute Summary collapse

Attributes inherited from Info

#abbreviation, #alias, #authority, #authority_code, #name, #remarks

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Info

#extension

Methods inherited from Base

#encode_with, #eql?, #hash, #init_with, #inspect, #marshal_dump, #marshal_load, #to_s, #to_wkt

Constructor Details

#initialize(name, angular_unit, longitude, *optional) ⇒ PrimeMeridian

:nodoc:



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# File 'lib/rgeo/coord_sys/cs/entities.rb', line 573

def initialize(name, angular_unit, longitude, *optional) # :nodoc:
  super(name, *optional)
  @angular_unit = angular_unit
  @longitude = longitude.to_f
end

Instance Attribute Details

#angular_unit ⇒ Object (readonly)

Returns the AngularUnits.



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# File 'lib/rgeo/coord_sys/cs/entities.rb', line 580

def angular_unit
  @angular_unit
end

#longitude ⇒ Object (readonly)

Returns the longitude value relative to the Greenwich Meridian. The longitude is expressed in this objects angular units.



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# File 'lib/rgeo/coord_sys/cs/entities.rb', line 584

def longitude
  @longitude
end

Class Method Details

.create(name, angular_unit, longitude, *optional) ⇒ Object

Create a PrimeMeridian given a name, AngularUnits, and the longitude relative to the Greenwich Meridian, expressed in the AngularUnits. You may also provide the optional parameters specified by the Info interface.



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# File 'lib/rgeo/coord_sys/cs/entities.rb', line 596

def create(name, angular_unit, longitude, *optional)
  new(name, angular_unit, longitude, *optional)
end

Instance Method Details

#wkt_typename ⇒ Object 



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# File 'lib/rgeo/coord_sys/cs/entities.rb', line 586

def wkt_typename
  "PRIMEM"
end