Class: VORuby::STC::V1_10::Coords::AstroCoords

Inherits:
AstroCoordsType show all
Includes:
Coords
Defined in:
lib/voruby/stc/1.10/coords.rb

Overview

The coordinate element consists either of a coordinate file or a sequence of time element, spatial coordinate element, velocity element, and redshift element; the spatial and velocity elements may be scalar or vector; it needs to refer to a coordinate system

Instance Attribute Summary

Attributes inherited from AstroCoordsType

#coord_file, #position, #redshift, #spectral, #time, #velocity

Attributes inherited from CoordsType

#coord_system_id, #coordinates

Class Method Summary collapse

Instance Method Summary collapse

Methods included from SerializableToXml

#element

Methods inherited from AstroCoordsType

#==

Methods inherited from CoordsType

#==, #initialize

Constructor Details

This class inherits a constructor from VORuby::STC::V1_10::Coords::CoordsType

Class Method Details

.from_xml(xml) ⇒ Object 



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# File 'lib/voruby/stc/1.10/coords.rb', line 2222

def self.from_xml(xml)
   root = element_from(xml)
   
   options = {
     :coord_system_id => IdRef.new(root.attributes.get_attribute_ns(obj_ns.uri, 'coord_system_id').value),
   }
   options[:coordinates] = xml_to_obj(root, Coordinate)
   time = REXML::XPath.first(root, 'x:Time', {'x' => obj_ns.uri})
   options[:time] = TimeCoordinate.from_xml(time) if time
   options[:position] = xml_to_obj(root, Position, true)
   options[:velocity] = xml_to_obj(root, Velocity, true)
   options[:spectral] = xml_to_obj(root, Spectral, true)
   options[:redshift] = xml_to_obj(root, Redshift, true)
   coord_file = REXML::XPath.first(root, 'x:CoordFile', {'x' => obj_ns.uri})
   options[:coord_file] = AstroCoordsFile.from_xml(coord_file) if coord_file
   
   AstroCoords.new(options)
end

Instance Method Details

#to_xml(name = nil, ns = nil) ⇒ Object 



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# File 'lib/voruby/stc/1.10/coords.rb', line 2205

def to_xml(name=nil, ns=nil)
  el = element(name, ns)
  el.attributes["#{obj_ns.prefix}:coord_system_id"] = self.coord_system_id.to_s
   
  self.coordinates.each { |c| el.add_element(c.to_xml) } if self.coordinates
  el.add_element(self.time.to_xml('Time')) if self.time
  el.add_element(self.position.to_xml) if self.position
  el.add_element(self.velocity.to_xml) if self.velocity
  el.add_element(self.spectral.to_xml) if self.spectral
  el.add_element(self.redshift.to_xml) if self.redshift
  el.add_element(self.coord_file.to_xml('CoordFile')) if self.coord_file
  
  collapse_namespaces(el)
   
  el
end