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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
def as_json(options = {})
{:type => 'MultiPoint',
:coordinates => self.to_coordinates}
end
# simple geojson representation
# TODO add CRS / SRID support?
def to_json(options = {})
as_json(options).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
8 entries across 8 versions & 1 rubygems