Class: VORuby::STC::V1_30::PolygonType

Inherits:
ShapeType show all
Defined in:
lib/voruby/stc/1.30/stc.rb

Overview

Polygon: one or more vertices; counter-clockwise (as seen from “inside” or from “top”) encircled area is enclosed; sides should span less than 180 deg in each coordinate if spherical; a polygon may not intersect itself.

Direct Known Subclasses

Polygon, Polygon2

Instance Attribute Summary collapse

Attributes inherited from RegionType

#area, #coord_system_id, #note

Attributes inherited from SpatialIntervalType

#epoch, #unit

Attributes inherited from CoordIntervalType

#fill_factor, #frame_id, #hi_include, #lo_include

Attributes included from STCReference

#id, #idref, #ucd, #xlink_href, #xlink_type

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from ShapeType

shape_from_xml

Methods inherited from RegionType

region_from_xml

Methods inherited from SpatialIntervalType

spatial_interval_from_xml

Methods inherited from CoordIntervalType

coord_interval_from_xml, #hi_include?, #lo_include?

Methods inherited from STCBaseType

stc_base_from_xml

Methods included from STCReference

#stc_reference_eq, stc_reference_from_xml, #stc_reference_to_xml

Methods included from SerializableToXml

#element

Constructor Details

#initialize(vertices, area = nil, lo_include = true, hi_include = true, options = {}) ⇒ PolygonType

Returns a new instance of PolygonType.



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# File 'lib/voruby/stc/1.30/stc.rb', line 5537

def initialize(vertices, area=nil, lo_include=true, hi_include=true, options={})
  super(area, lo_include, hi_include, options)
  self.vertices = vertices
end

Instance Attribute Details

#vertices ⇒ Object

Returns the value of attribute vertices.



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# File 'lib/voruby/stc/1.30/stc.rb', line 5535

def vertices
  @vertices
end

Class Method Details

.from_xml(xml) ⇒ Object 



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# File 'lib/voruby/stc/1.30/stc.rb', line 5574

def self.from_xml(xml)
  root = element_from(xml)
  
  self.new(
    VertexList.new(
      REXML::XPath.match(root, 'x:Vertex', {'x' => obj_ns.uri}).collect{ |v| VertexType.from_xml(v) }
    ),
    *ShapeType.shape_from_xml(root)
  )
end

Instance Method Details

#==(p) ⇒ Object 



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# File 'lib/voruby/stc/1.30/stc.rb', line 5556

def ==(p)
  super(p) and
  self.vertices == p.vertices
end

#to_s ⇒ Object 



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# File 'lib/voruby/stc/1.30/stc.rb', line 5570

def to_s
  "POLYGON #{self.coord_system_id || IdRef.new('J2000')} #{self.vertices.collect{ |v| v.to_s }.join(' ')}"
end

#to_xml(name = nil) ⇒ Object 



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# File 'lib/voruby/stc/1.30/stc.rb', line 5561

def to_xml(name=nil)
  el = super(name)
  
  self.vertices.each{ |v| el.add_element(v.to_xml('Vertex')) }
  
  collapse_namespaces(el)
  el
end