Class: GeoScript::Geom::LineString

Inherits:
JTSLineString
  • Object
show all
Includes:
GeoScript::Geom
Defined in:
lib/geoscript/geom/linestring.rb

Constant Summary

Constants included from GeoScript::Geom

GEOM_FACTORY, PREP_FACTORY

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from GeoScript::Geom

buffer, enhance, from_wkt, get_bounds, prepare, simplify, to_wkt

Constructor Details

#initialize(*coords) ⇒ LineString

Returns a new instance of LineString.



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# File 'lib/geoscript/geom/linestring.rb', line 11

def initialize(*coords)
  if coords.size == 1
    if coords.first.kind_of? JTSLineString
    elsif coords.kind_of? Array
      if coords.first.kind_of? Array
        l = []
        coords.first.each do |coord|
          l << Coordinate.new(coord[0], coord[1])
          l.last.z = coord[2] if coord[2]
        end
        if l.size > 0
          ls = GEOM_FACTORY.create_line_string l.to_java(com.vividsolutions.jts.geom.Coordinate)
        end
      end
    end
  else
    l = []
    coords.each do |coord|
      l << Coordinate.new(coord[0], coord[1])
      l.last.z = coord[2] if coord[2]
    end
    if l.size > 0
      ls = GEOM_FACTORY.create_line_string l.to_java(com.vividsolutions.jts.geom.Coordinate)
    end
  end

  if ls
    super(ls.coordinate_sequence, GEOM_FACTORY)
  else
    raise 'LineString could not be created. Check inputs.'
  end
end

Instance Attribute Details

#bounds ⇒ Object

Returns the value of attribute bounds.



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# File 'lib/geoscript/geom/linestring.rb', line 9

def bounds
  @bounds
end

Instance Method Details

#buffer(dist) ⇒ Object 



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# File 'lib/geoscript/geom/linestring.rb', line 44

def buffer(dist)
  Polygon.new super
end

#to_json ⇒ Object 



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# File 'lib/geoscript/geom/linestring.rb', line 56

def to_json
  IO.write_json self
end

#to_wkb ⇒ Object 



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# File 'lib/geoscript/geom/linestring.rb', line 52

def to_wkb
  IO.write_wkb self
end

#to_wkt ⇒ Object 



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# File 'lib/geoscript/geom/linestring.rb', line 48

def to_wkt
  IO.write_wkt self
end