Class: GeoRuby::SimpleFeatures::EWKTParser

Inherits:
Object
  • Object
show all
Defined in:
lib/geo_ruby/simple_features/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.



30
31
32
33
34
35
36
37
38
39
40
41
 
# File 'lib/geo_ruby/simple_features/ewkt_parser.rb', line 30

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



44
45
46
47
48
49
50
51
52
 
# File 'lib/geo_ruby/simple_features/ewkt_parser.rb', line 44

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