Class: GeoRuby::SimpleFeatures::EWKTParser

Inherits:
Object
  • Object
show all
Defined in:
lib/geo_ruby/ewk/ewkt_parser.rb

Overview

Parses EWKT strings and notifies of events (such as the beginning of the definition of geometry, the value of the SRID...) the factory passed as argument to the constructor.

=Example factory = GeometryFactory::new ewkt_parser = EWKTParser::new(factory) ewkt_parser.parse() geometry = @factory.geometry

You can also use directly the static method Geometry.from_ewkt

Instance Method Summary collapse

Constructor Details

#initialize(factory) ⇒ EWKTParser

Returns a new instance of EWKTParser.



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# File 'lib/geo_ruby/ewk/ewkt_parser.rb', line 19

def initialize(factory)
  @factory = factory
  @parse_options = {
    'POINT' => method(:parse_point),
    'LINESTRING' => method(:parse_line_string),
    'POLYGON' => method(:parse_polygon),
    'MULTIPOINT' => method(:parse_multi_point),
    'MULTILINESTRING' => method(:parse_multi_line_string),
    'MULTIPOLYGON' => method(:parse_multi_polygon),
    'GEOMETRYCOLLECTION' => method(:parse_geometry_collection)
  }
end

Instance Method Details

#parse(ewkt) ⇒ Object

Parses the ewkt string passed as argument and notifies the factory of events



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# File 'lib/geo_ruby/ewk/ewkt_parser.rb', line 33

def parse(ewkt)
  @factory.reset
  @tokenizer_structure = TokenizerStructure.new(ewkt)
  @with_z = false
  @with_m = false
  @is_3dm = false
  parse_geometry(true)
  @srid = nil
end