lib/rgeo/kml/interface.rb
# -----------------------------------------------------------------------------
#
# Kml toplevel interface
#
# -----------------------------------------------------------------------------
module RGeo
module Kml
class << self
# High-level convenience routine for encoding an object as Kml.
# Pass the object, which may one of the geometry objects specified
# in RGeo::Feature, or an appropriate Kml wrapper entity such
# as RGeo::Kml::Feature or RGeo::Kml::FeatureCollection.
#
# The only option supported is <tt>:entity_factory</tt>, which lets
# you override the types of Kml entities supported. See
# RGeo::Kml::EntityFactory for more information. By default,
# encode supports objects of type RGeo::Kml::Feature and
# RGeo::Kml::FeatureCollection.
def encode(object_, opts_={})
Coder.new(opts_).encode(object_)
end
# High-level convenience routine for decoding an object from Kml.
# The input may be a JSON hash, a String, or an IO object from which
# to read the JSON string.
#
# Options include:
#
# [<tt>:geo_factory</tt>]
# Specifies the geo factory to use to create geometry objects.
# Defaults to the preferred cartesian factory.
# [<tt>:entity_factory</tt>]
# Specifies an entity factory, which lets you override the types
# of Kml entities that are created. It defaults to the default
# RGeo::Kml::EntityFactory, which generates objects of type
# RGeo::Kml::Feature or RGeo::Kml::FeatureCollection.
# See RGeo::Kml::EntityFactory for more information.
# [<tt>:json_parser</tt>]
# Specifies a JSON parser to use when decoding a String or IO
# object. The value may be a Proc object taking the string as the
# sole argument and returning the JSON hash, or it may be one of
# the special values <tt>:json</tt>, <tt>:yajl</tt>, or
# <tt>:active_support</tt>. Setting one of those special values
# will require the corresponding library to be available. Note
# that the <tt>:json</tt> library is present in the standard
# library in Ruby 1.9, but requires the "json" gem in Ruby 1.8.
# If a parser is not specified, then the decode method will not
# accept a String or IO object; it will require a Hash.
def decode(input_, opts_={})
Coder.new(opts_).decode(input_)
end
# Creates and returns a coder object of type RGeo::Kml::Coder
# that encapsulates encoding and decoding settings (principally the
# RGeo::Feature::Factory and the RGeo::Kml::EntityFactory to be
# used).
#
# The geo factory is a required argument. Other options include:
#
# [<tt>:geo_factory</tt>]
# Specifies the geo factory to use to create geometry objects.
# Defaults to the preferred cartesian factory.
# [<tt>:entity_factory</tt>]
# Specifies an entity factory, which lets you override the types
# of Kml entities that are created. It defaults to the default
# RGeo::Kml::EntityFactory, which generates objects of type
# RGeo::Kml::Feature or RGeo::Kml::FeatureCollection.
# See RGeo::Kml::EntityFactory for more information.
# [<tt>:json_parser</tt>]
# Specifies a JSON parser to use when decoding a String or IO
# object. The value may be a Proc object taking the string as the
# sole argument and returning the JSON hash, or it may be one of
# the special values <tt>:json</tt>, <tt>:yajl</tt>, or
# <tt>:active_support</tt>. Setting one of those special values
# will require the corresponding library to be available. Note
# that the <tt>:json</tt> library is present in the standard
# library in Ruby 1.9, but requires the "json" gem in Ruby 1.8.
# If a parser is not specified, then the decode method will not
# accept a String or IO object; it will require a Hash.
def coder(opts_={})
Coder.new(opts_)
end
end
end
end