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 # Metadata
+## Meta
+The `Meta` method provides metadata handling capabilities in GeometryBasics. Similarly to remove the metadata and keep only the geometry, use `metafree`, and for vice versa i.e., remove the geometry and keep the metadata use `meta`.
+
+
+### Syntax
+```
+meta(geometry, meta::NamedTuple)
+meta(geometry; meta...)
+
+metafree(meta-geometry)
+meta(meta-geometry)
+```    
+### Example
+```jldoctest
+using GeometryBasics   
+p1 = Point(2.2, 3.6)
+
+poi = meta(p1, city="Abuja", rainfall=1221.2)
+2-element PointMeta{2,Int64,Point{2,Int64},(:city, :rainfall),Tuple{String,Float64}} with indices SOneTo(2):
+ 3
+ 1
+
+# metadata is stored in a NamedTuple and can be retrieved as such
+meta(poi)
+(city = "Abuja", rainfall = 1221.2)
+
+# specific metadata attributes can be directly retrieved
+poi.rainfall
+1221.2
+
+metafree(poi)
+2-element Point{2,Int64} with indices SOneTo(2):
+ 3
+ 1
+
+# for other geometries metatypes are predefined
+multipoi = MultiPointMeta([p1], city="Abuja", rainfall=1221.2)
+1-element MultiPointMeta{Point{2,Int64},MultiPoint{2,Int64,Point{2,Int64},Array{Point{2,Int64},1}},(:city, :rainfall),Tuple{String,Float64}}:
+[3, 1]
+```
+In the above example we have also used geometry specific meta methods.
+
+### Example
+```@jldoctest
+GeometryBasics.MetaType(Polygon)
+PolygonMeta
+
+GeometryBasics.MetaType(Mesh)
+MeshMeta
+```
+The metageometry objects are infact composed of the original geometry types.
+```@jldoctest
+GeometryBasics.MetaFree(PolygonMeta)
+Polygon
+
+GeometryBasics.MetaFree(MeshMeta)
+Mesh
+```
+## MetaT
+In GeometryBasics we can a have tabular layout for a collection of meta-geometries by putting them into a StructArray that extends the [Tables.jl](https://github.com/JuliaData/Tables.jl) API.
+
+In practice it's not necessary for the geometry or metadata types to be consistent. Eg: A geojson format can have heterogeneous geometries.
+Hence, such cases require automatic widening of the geometry data types to the most appropriate type. The MetaT method works around the fact that, a collection of geometries and metadata of different types can be represented tabularly whilst widening to the appropriate type. 
+### Syntax
+```
+MetaT(geometry, meta::NamedTuple)
+MetaT(geometry; meta...)
+```    
+Returns a `MetaT` that holds a geometry and its metadata `MetaT` acts the same as `Meta` method.
+The difference lies in the fact that it is designed to handle geometries and metadata of different/heterogeneous types.
+
+eg: While a Point MetaGeometry is a `PointMeta`, the MetaT representation is `MetaT{Point}`
+
+### Example
+```@jldoctest
+MetaT(Point(1, 2), city = "Mumbai")
+MetaT{Point{2,Int64},(:city,),Tuple{String}}([1, 2], (city = "Mumbai",))
+```
+
+For a tabular representation, an iterable of `MetaT` types can be passed on to a `metatable` method.
+
+### Syntax
+```@jldoctest
+meta_table(iter)
+```    
+### Example
+```@jldoctest
+using DataFrames
+# Create an array of 2 linestrings 
+ls = [LineString([Point(i, i+1), Point(i-1,i+5)]) for i in 1:2]
+
+# Create a MultiLineString 
+mls = MultiLineString(ls)
+
+# Create a Polygon
+poly = Polygon(Point{2, Int}[(40, 40), (20, 45), (45, 30), (40, 40)])
+
+# Put all of it in an Array
+geom = [ls..., mls, poly]
+    
+# Generate some random metadata
+prop = [(country_states = "India$(i)", rainfall = (i*9)/2) for i in 1:4]
+    
+# Create an Array of MetaT
+feat = [MetaT(i, j) for (i,j) = zip(geom, prop)]
+
+# Generate a StructArray/Table
+sa = meta_table(feat)
+
+sa.main
+sa.country_states
+sa.rainfall
+```
+
+### Disadvantages:
+ * The MetaT is pretty generic in terms of geometry types, it's not subtype to geometries. eg : A `MetaT{Point, NamedTuple{Names, Types}}` is not subtyped to `AbstractPoint` like a `PointMeta` is.
+ * This might cause problems on using `MetaT` with other constructors/methods inside or even outside GeometryBasics methods designed to work with the main `Meta` types.
+