Contents

require 'geo_ruby/simple_features/geometry_collection'

module GeoRuby
  module SimpleFeatures
    #Represents a group of points (see Point).
    class MultiPoint < GeometryCollection

      def initialize(srid= DEFAULT_SRID,with_z=false,with_m=false)
        super(srid,with_z,with_m)
      end

      def binary_geometry_type #:nodoc:
        4
      end

      def points
        @geometries
      end

      #Text representation of a MultiPoint
      def text_representation(allow_z=true,allow_m=true) #:nodoc:
        "(" + @geometries.collect{|point| point.text_representation(allow_z,allow_m)}.join("),(") + ")"
      end

      #WKT geoemtry type
      def text_geometry_type #:nodoc:
        "MULTIPOINT"
      end

      def to_coordinates
        points.map{|p| p.to_coordinates }
      end

      # simple geojson representation
      # TODO add CRS / SRID support?
      def to_json(options = {})
        {:type => 'MultiPoint',
         :coordinates => self.to_coordinates}.to_json(options)
      end
      alias :as_geojson :to_json

      #Creates a new multi point from an array of points
      def self.from_points(points,srid= DEFAULT_SRID,with_z=false,with_m=false)
        multi_point= new(srid,with_z,with_m)
        multi_point.concat(points)
        multi_point
      end

      #Creates a new multi point from a list of point coordinates : ((x,y)...(x,y))
      def self.from_coordinates(points,srid= DEFAULT_SRID,with_z=false,with_m=false)
        multi_point= new(srid,with_z,with_m)
        multi_point.concat(points.collect {|point| Point.from_coordinates(point,srid,with_z,with_m)})
        multi_point
      end

    end
  end
end

Version data entries

4 entries across 4 versions & 2 rubygems

Version	Path
georuby-1.9.3	lib/geo_ruby/simple_features/multi_point.rb
nofxx-georuby-1.9.2	lib/geo_ruby/simple_features/multi_point.rb
nofxx-georuby-1.9.1	lib/geo_ruby/simple_features/multi_point.rb
nofxx-georuby-1.9.0	lib/geo_ruby/simple_features/multi_point.rb