Contents

# frozen_string_literal: true

require 'nokogiri'
require 'gpx_kml/kml'
require 'gpx_kml/kml/track'
require 'gpx_kml/kml/route'

module KML
  # Docu
  class Point
    def initialize(coord, father, node)
      re = Regexp.new('^ ?[0-9]+\.[0-9]+,[0-9]+\.[0-9]+(,[0-9]+\.[0-9]+)? ?$')

      return unless valid_father?(father) && re.match?(coord) && node.is_a?(Nokogiri::XML::Element)
      return if node.xpath('self::*[self::xmlns:LineString or self::xmlns:Point or self::xmlns:LinearRing]').empty?

      @father = father
      coord = coord.split(',')
      @latitude = coord[0]
      @longitude = coord[1]
      @elevation = coord[2] if coord.length == 3
      @node = node
      # Name is looked up in the ancestor of the node that compose this point
      @name = _name
      return if node.xpath('self::xmlns:Point').empty?

      @author = _author
      @link = _link
    end

    attr_reader :latitude, :longitude, :elevation, :name, :father, :link, :author

    private

    def _name
      elem = @node.xpath('.')
      while elem.xpath('self::xmlns:kml').empty?
        return elem.xpath('./xmlns:name/text()').to_s unless elem.xpath('./xmlns:name').empty?

        elem = elem.xpath('..')
      end
      ''
    end

    def _author
      elem = @node.xpath('.')
      while elem.xpath('self::xmlns:kml').empty?
        elem = elem.xpath('..')
        return elem.xpath('./atom:author/atom:name/text()').to_s unless elem.xpath('./atom:author').empty?
      end
      ''
    end

    def _link
      elem = @node.xpath('.')
      while elem.xpath('self::xmlns:kml').empty?
        elem = elem.xpath('..')
        return elem.xpath('./atom:link/@href').to_s unless elem.xpath('./atom:link').empty?
      end
      ''
    end

    def valid_father?(father)
      father.is_a?(KML::Track) || father.is_a?(KML::Kml) || father.is_a?(KML::Route)
    end
  end
end

Version data entries

6 entries across 6 versions & 1 rubygems

Version	Path
gpx_kml-0.1.3	lib/gpx_kml/kml/point.rb
gpx_kml-0.1.2	lib/gpx_kml/kml/point.rb
gpx_kml-0.1.1	lib/gpx_kml/kml/point.rb
gpx_kml-0.1.0	lib/gpx_kml/kml/point.rb
gpx_kml-0.0.2	lib/gpx_kml/kml/point.rb
gpx_kml-0.0.1	lib/gpx_kml/kml/point.rb