Add a grid method to extract the grid

Project.toml

@@ -1,7 +1,7 @@
 name = "SimpleSDMLayers"
 uuid = "2c645270-77db-11e9-22c3-0f302a89c64c"
 authors = ["Timothée Poisot <[email protected]>", "Gabriel Dansereau <[email protected]>"]
-version = "0.7.0"
+version = "0.7.1"
 
 [deps]
 ArchGDAL = "c9ce4bd3-c3d5-55b8-8973-c0e20141b8c3"
@@ -12,7 +12,7 @@ Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 ZipFile = "a5390f91-8eb1-5f08-bee0-b1d1ffed6cea"
 
 [compat]
-ArchGDAL = "0.6"
+ArchGDAL = "0.6, 0.7"
 Downloads = "1.4"
 RecipesBase = "0.7, 0.8, 1.0"
 Requires = "1.0"

src/SimpleSDMLayers.jl

@@ -15,7 +15,7 @@ include(joinpath("lib", "overloads.jl"))
 include(joinpath("lib", "generated.jl"))
 
 include(joinpath("lib", "basics.jl"))
-export latitudes, longitudes, boundingbox
+export latitudes, longitudes, boundingbox, grid
 
 include(joinpath("lib", "iteration.jl"))
 

src/lib/basics.jl

@@ -39,3 +39,7 @@ end
 function _layers_are_compatible(layers::Array{T}) where {T <: SimpleSDMLayer}
     all(layer -> _layers_are_compatible(layer, layers[1]), layers)
 end
+
+function grid(layer::T) where {T <: SimpleSDMLayer}
+    return copy(layer.grid)
+end

test/basics.jl

@@ -20,4 +20,7 @@ bbox = boundingbox(S)
 @test bbox.bottom == S.bottom
 @test bbox.top == S.top
 
+A = grid(S)
+@test M == A
+
 end