Class: RGeo::Cartesian::Factory

Inherits:
Object
  • Object
show all
Includes:
Feature::Factory::Instance, ImplHelper::Utils
Defined in:
lib/rgeo/cartesian/factory.rb

Overview

This class implements the factory for the simple cartesian implementation.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(opts = {}) ⇒ Factory

Create a new simple cartesian factory.

See RGeo::Cartesian.simple_factory for a list of supported options.


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# File 'lib/rgeo/cartesian/factory.rb', line 22

def initialize(opts = {})
  @has_z = opts[:has_z_coordinate] ? true : false
  @has_m = opts[:has_m_coordinate] ? true : false
  @proj4 = opts[:proj4]
  if @proj4 && CoordSys.check!(:proj4)
    if @proj4.is_a?(String) || @proj4.is_a?(Hash)
      @proj4 = CoordSys::Proj4.create(@proj4)
    end
  end
  srid = opts[:srid]
  @coord_sys = opts[:coord_sys]
  if @coord_sys.is_a?(String)
    @coord_sys = CoordSys::CS.create_from_wkt(@coord_sys)
  end
  if (!@proj4 || !@coord_sys) && srid && (db = opts[:srs_database])
    entry = db.get(srid.to_i)
    if entry
      @proj4 ||= entry.proj4
      @coord_sys ||= entry.coord_sys
    end
  end
  srid ||= @coord_sys.authority_code if @coord_sys
  @srid = srid.to_i
  @lenient_assertions = opts[:uses_lenient_assertions] ? true : false
  @buffer_resolution = opts[:buffer_resolution].to_i
  @buffer_resolution = 1 if @buffer_resolution < 1

  wkt_generator = opts[:wkt_generator]
  case wkt_generator
  when Hash
    @wkt_generator = WKRep::WKTGenerator.new(wkt_generator)
  else
    @wkt_generator = WKRep::WKTGenerator.new(convert_case: :upper)
  end
  wkb_generator = opts[:wkb_generator]
  case wkb_generator
  when Hash
    @wkb_generator = WKRep::WKBGenerator.new(wkb_generator)
  else
    @wkb_generator = WKRep::WKBGenerator.new
  end
  wkt_parser = opts[:wkt_parser]
  case wkt_parser
  when Hash
    @wkt_parser = WKRep::WKTParser.new(self, wkt_parser)
  else
    @wkt_parser = WKRep::WKTParser.new(self)
  end
  wkb_parser = opts[:wkb_parser]
  case wkb_parser
  when Hash
    @wkb_parser = WKRep::WKBParser.new(self, wkb_parser)
  else
    @wkb_parser = WKRep::WKBParser.new(self)
  end
end

Instance Attribute Details

#coord_sys ⇒ Object (readonly)

See RGeo::Feature::Factory#coord_sys


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# File 'lib/rgeo/cartesian/factory.rb', line 283

def coord_sys
  @coord_sys
end

#proj4 ⇒ Object (readonly)

See RGeo::Feature::Factory#proj4


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# File 'lib/rgeo/cartesian/factory.rb', line 279

def proj4
  @proj4
end

#srid ⇒ Object (readonly)

Returns the SRID.


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# File 'lib/rgeo/cartesian/factory.rb', line 192

def srid
  @srid
end

Instance Method Details

#collection(elems) ⇒ Object

See RGeo::Feature::Factory#collection


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# File 'lib/rgeo/cartesian/factory.rb', line 255

def collection(elems)
  GeometryCollectionImpl.new(self, elems)
end

#encode_with(coder) ⇒ Object

Psych support


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# File 'lib/rgeo/cartesian/factory.rb', line 143

def encode_with(coder) # :nodoc:
  coder["has_z_coordinate"] = @has_z
  coder["has_m_coordinate"] = @has_m
  coder["srid"] = @srid
  coder["lenient_assertions"] = @lenient_assertions
  coder["buffer_resolution"] = @buffer_resolution
  coder["wkt_generator"] = @wkt_generator.properties
  coder["wkb_generator"] = @wkb_generator.properties
  coder["wkt_parser"] = @wkt_parser.properties
  coder["wkb_parser"] = @wkb_parser.properties
  if @proj4
    str = @proj4.original_str || @proj4.canonical_str
    coder["proj4"] = @proj4.radians? ? { "proj4" => str, "radians" => true } : str
  end
  coder["coord_sys"] = @coord_sys.to_wkt if @coord_sys
end

#eql?(rhs) ⇒ Boolean Also known as: ==

Equivalence test.

Returns:

  • (Boolean) 

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# File 'lib/rgeo/cartesian/factory.rb', line 81

def eql?(rhs)
  rhs.is_a?(self.class) && @srid == rhs.srid &&
    @has_z == rhs.property(:has_z_coordinate) &&
    @has_m == rhs.property(:has_m_coordinate) &&
    @proj4.eql?(rhs.proj4)
end

#generate_wkb(obj) ⇒ Object 


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# File 'lib/rgeo/cartesian/factory.rb', line 289

def generate_wkb(obj)
  @wkb_generator.generate(obj)
end

#generate_wkt(obj) ⇒ Object 


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# File 'lib/rgeo/cartesian/factory.rb', line 285

def generate_wkt(obj)
  @wkt_generator.generate(obj)
end

#hash ⇒ Object

Standard hash code


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# File 'lib/rgeo/cartesian/factory.rb', line 91

def hash
  @hash ||= [@srid, @has_z, @has_m, @proj4].hash
end

#init_with(coder) ⇒ Object

:nodoc:


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# File 'lib/rgeo/cartesian/factory.rb', line 160

def init_with(coder) # :nodoc:
  if (proj4_data = coder["proj4"]) && CoordSys.check!(:proj4)
    if proj4_data.is_a?(Hash)
      proj4 = CoordSys::Proj4.create(proj4_data["proj4"], radians: proj4_data["radians"])
    else
      proj4 = CoordSys::Proj4.create(proj4_data.to_s)
    end
  else
    proj4 = nil
  end
  if (coord_sys_data = coder["cs"])
    coord_sys = CoordSys::CS.create_from_wkt(coord_sys_data.to_s)
  else
    coord_sys = nil
  end
  initialize(
    has_z_coordinate: coder["has_z_coordinate"],
    has_m_coordinate: coder["has_m_coordinate"],
    srid: coder["srid"],
    wkt_generator: symbolize_hash(coder["wkt_generator"]),
    wkb_generator: symbolize_hash(coder["wkb_generator"]),
    wkt_parser: symbolize_hash(coder["wkt_parser"]),
    wkb_parser: symbolize_hash(coder["wkb_parser"]),
    uses_lenient_assertions: coder["lenient_assertions"],
    buffer_resolution: coder["buffer_resolution"],
    proj4: proj4,
    coord_sys: coord_sys
  )
end

#line(start, stop) ⇒ Object

See RGeo::Feature::Factory#line


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# File 'lib/rgeo/cartesian/factory.rb', line 237

def line(start, stop)
  LineImpl.new(self, start, stop)
end

#line_string(points) ⇒ Object

See RGeo::Feature::Factory#line_string


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# File 'lib/rgeo/cartesian/factory.rb', line 231

def line_string(points)
  LineStringImpl.new(self, points)
end

#linear_ring(points) ⇒ Object

See RGeo::Feature::Factory#linear_ring


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# File 'lib/rgeo/cartesian/factory.rb', line 243

def linear_ring(points)
  LinearRingImpl.new(self, points)
end

#marshal_dump ⇒ Object

Marshal support


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# File 'lib/rgeo/cartesian/factory.rb', line 97

def marshal_dump # :nodoc:
  hash_ = {
    "hasz" => @has_z,
    "hasm" => @has_m,
    "srid" => @srid,
    "wktg" => @wkt_generator.properties,
    "wkbg" => @wkb_generator.properties,
    "wktp" => @wkt_parser.properties,
    "wkbp" => @wkb_parser.properties,
    "lena" => @lenient_assertions,
    "bufr" => @buffer_resolution
  }
  hash_["proj4"] = @proj4.marshal_dump if @proj4
  hash_["cs"] = @coord_sys.to_wkt if @coord_sys
  hash_
end

#marshal_load(data) ⇒ Object

:nodoc:


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# File 'lib/rgeo/cartesian/factory.rb', line 114

def marshal_load(data) # :nodoc:
  if (proj4_data = data["proj4"]) && CoordSys.check!(:proj4)
    proj4 = CoordSys::Proj4.allocate
    proj4.marshal_load(proj4_data)
  else
    proj4 = nil
  end
  if (coord_sys_data = data["cs"])
    coord_sys = CoordSys::CS.create_from_wkt(coord_sys_data)
  else
    coord_sys = nil
  end
  initialize(
    has_z_coordinate: data["hasz"],
    has_m_coordinate: data["hasm"],
    srid: data["srid"],
    wkt_generator: symbolize_hash(data["wktg"]),
    wkb_generator: symbolize_hash(data["wkbg"]),
    wkt_parser: symbolize_hash(data["wktp"]),
    wkb_parser: symbolize_hash(data["wkbp"]),
    uses_lenient_assertions: data["lena"],
    buffer_resolution: data["bufr"],
    proj4: proj4,
    coord_sys: coord_sys
  )
end

#marshal_wkb_generator ⇒ Object 


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# File 'lib/rgeo/cartesian/factory.rb', line 293

def marshal_wkb_generator
  @marshal_wkb_generator ||= RGeo::WKRep::WKBGenerator.new(type_format: :wkb12)
end

#marshal_wkb_parser ⇒ Object 


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# File 'lib/rgeo/cartesian/factory.rb', line 297

def marshal_wkb_parser
  @marshal_wkb_parser ||= RGeo::WKRep::WKBParser.new(self, support_wkb12: true)
end

#multi_line_string(elems) ⇒ Object

See RGeo::Feature::Factory#multi_line_string


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# File 'lib/rgeo/cartesian/factory.rb', line 267

def multi_line_string(elems)
  MultiLineStringImpl.new(self, elems)
end

#multi_point(elems) ⇒ Object

See RGeo::Feature::Factory#multi_point


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# File 'lib/rgeo/cartesian/factory.rb', line 261

def multi_point(elems)
  MultiPointImpl.new(self, elems)
end

#multi_polygon(elems) ⇒ Object

See RGeo::Feature::Factory#multi_polygon


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# File 'lib/rgeo/cartesian/factory.rb', line 273

def multi_polygon(elems)
  MultiPolygonImpl.new(self, elems)
end

#parse_wkb(str) ⇒ Object

See RGeo::Feature::Factory#parse_wkb


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# File 'lib/rgeo/cartesian/factory.rb', line 219

def parse_wkb(str)
  @wkb_parser.parse(str)
end

#parse_wkt(str) ⇒ Object

See RGeo::Feature::Factory#parse_wkt


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# File 'lib/rgeo/cartesian/factory.rb', line 213

def parse_wkt(str)
  @wkt_parser.parse(str)
end

#point(x, y, *extra) ⇒ Object

See RGeo::Feature::Factory#point


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# File 'lib/rgeo/cartesian/factory.rb', line 225

def point(x, y, *extra)
  PointImpl.new(self, x, y, *extra)
end

#polygon(outer_ring, inner_rings = nil) ⇒ Object

See RGeo::Feature::Factory#polygon


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# File 'lib/rgeo/cartesian/factory.rb', line 249

def polygon(outer_ring, inner_rings = nil)
  PolygonImpl.new(self, outer_ring, inner_rings)
end

#property(name) ⇒ Object

See RGeo::Feature::Factory#property


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# File 'lib/rgeo/cartesian/factory.rb', line 196

def property(name)
  case name
  when :has_z_coordinate
    @has_z
  when :has_m_coordinate
    @has_m
  when :uses_lenient_assertions
    @lenient_assertions
  when :buffer_resolution
    @buffer_resolution
  when :is_cartesian
    true
  end
end

#psych_wkt_generator ⇒ Object 


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# File 'lib/rgeo/cartesian/factory.rb', line 301

def psych_wkt_generator
  @psych_wkt_generator ||= RGeo::WKRep::WKTGenerator.new(tag_format: :wkt12)
end

#psych_wkt_parser ⇒ Object 


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# File 'lib/rgeo/cartesian/factory.rb', line 305

def psych_wkt_parser
  @psych_wkt_parser ||= RGeo::WKRep::WKTParser.new(self, support_wkt12: true, support_ewkt: true)
end