Class: Resolv::DNS::Resource::LOC

Inherits:
Resource
  • Object
show all
Defined in:
lib/resolv.rb

Overview

Location resource

Constant Summary collapse

TypeValue =

:nodoc:

29

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(version, ssize, hprecision, vprecision, latitude, longitude, altitude) ⇒ LOC

Returns a new instance of LOC.



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# File 'lib/resolv.rb', line 2678

def initialize(version, ssize, hprecision, vprecision, latitude, longitude, altitude)
  @version    = version
  @ssize      = Resolv::LOC::Size.create(ssize)
  @hprecision = Resolv::LOC::Size.create(hprecision)
  @vprecision = Resolv::LOC::Size.create(vprecision)
  @latitude   = Resolv::LOC::Coord.create(latitude)
  @longitude  = Resolv::LOC::Coord.create(longitude)
  @altitude   = Resolv::LOC::Alt.create(altitude)
end

Instance Attribute Details

#altitude ⇒ Object (readonly)

The altitude of the LOC above a reference sphere whose surface sits 100km below the WGS84 spheroid in centimeters as an unsigned 32bit integer



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# File 'lib/resolv.rb', line 2729

def altitude
  @altitude
end

#hprecision ⇒ Object (readonly)

The horizontal precision using ssize type values in meters using scientific notation as 2 integers of XeY for precision use value/2 e.g. 2m = +/-1m



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# File 'lib/resolv.rb', line 2704

def hprecision
  @hprecision
end

#latitude ⇒ Object (readonly)

The latitude for this LOC where 2**31 is the equator in thousandths of an arc second as an unsigned 32bit integer



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# File 'lib/resolv.rb', line 2717

def latitude
  @latitude
end

#longitude ⇒ Object (readonly)

The longitude for this LOC where 2**31 is the prime meridian in thousandths of an arc second as an unsigned 32bit integer



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# File 'lib/resolv.rb', line 2723

def longitude
  @longitude
end

#ssize ⇒ Object (readonly)

The spherical size of this LOC in meters using scientific notation as 2 integers of XeY



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# File 'lib/resolv.rb', line 2697

def ssize
  @ssize
end

#version ⇒ Object (readonly)

Returns the version value for this LOC record which should always be 00



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# File 'lib/resolv.rb', line 2691

def version
  @version
end

#vprecision ⇒ Object (readonly)

The vertical precision using ssize type values in meters using scientific notation as 2 integers of XeY for precision use value/2 e.g. 2m = +/-1m



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# File 'lib/resolv.rb', line 2711

def vprecision
  @vprecision
end

Class Method Details

.decode_rdata(msg) ⇒ Object

:nodoc:



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# File 'lib/resolv.rb', line 2741

def self.decode_rdata(msg) # :nodoc:
  version    = msg.get_bytes(1)
  ssize      = msg.get_bytes(1)
  hprecision = msg.get_bytes(1)
  vprecision = msg.get_bytes(1)
  latitude   = msg.get_bytes(4)
  longitude  = msg.get_bytes(4)
  altitude   = msg.get_bytes(4)
  return self.new(
    version,
    Resolv::LOC::Size.new(ssize),
    Resolv::LOC::Size.new(hprecision),
    Resolv::LOC::Size.new(vprecision),
    Resolv::LOC::Coord.new(latitude,"lat"),
    Resolv::LOC::Coord.new(longitude,"lon"),
    Resolv::LOC::Alt.new(altitude)
  )
end

Instance Method Details

#encode_rdata(msg) ⇒ Object

:nodoc:



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# File 'lib/resolv.rb', line 2731

def encode_rdata(msg) # :nodoc:
  msg.put_bytes(@version)
  msg.put_bytes(@ssize.scalar)
  msg.put_bytes(@hprecision.scalar)
  msg.put_bytes(@vprecision.scalar)
  msg.put_bytes(@latitude.coordinates)
  msg.put_bytes(@longitude.coordinates)
  msg.put_bytes(@altitude.altitude)
end