Class: GeoRuby::KmlParser
- Inherits:
-
Object
- Object
- GeoRuby::KmlParser
- Defined in:
- lib/geo_ruby/kml.rb
Constant Summary collapse
- ELEMENT_MAP =
{ # "Point" => SimpleFeatures::Point, # we don't need to map points. they are done automatically by the coordinate parsing 'LineString' => SimpleFeatures::LineString, 'LinearRing' => SimpleFeatures::LinearRing, 'Polygon' => SimpleFeatures::Polygon, 'MultiGeometry' => SimpleFeatures::GeometryCollection }
Instance Method Summary collapse
-
#initialize(factory) ⇒ KmlParser
constructor
A new instance of KmlParser.
-
#parse(kml) ⇒ Object
argument should be a valid kml geometry fragment ie.
Constructor Details
#initialize(factory) ⇒ KmlParser
Returns a new instance of KmlParser.
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# File 'lib/geo_ruby/kml.rb', line 12 def initialize(factory) @factory = factory @buffer = '' @with_z = false end |
Instance Method Details
#parse(kml) ⇒ Object
argument should be a valid kml geometry fragment ie. <Point> .… </Point> returns the GeoRuby geometry object back
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# File 'lib/geo_ruby/kml.rb', line 20 def parse(kml) @factory.reset @with_z = false @parser = REXML::Parsers::PullParser.new(kml) while @parser.has_next? e = @parser.pull if e.start_element? if (type = ELEMENT_MAP[e[0]]) @factory.begin_geometry(type) else @buffer = '' if (e[0] == 'coordinates') # clear the buffer accumulate_start(e) end elsif e.end_element? if ELEMENT_MAP[e[0]] @factory.end_geometry(@with_z) @buffer = '' # clear the buffer else accumulate_end(e) if (e[0] == 'coordinates') parse_coordinates(@buffer) @buffer = '' # clear the buffer end end elsif e.text? accumulate_text(e) elsif e.cdata? accumulate_cdata(e) end end @factory.geometry.dup end |