fix deps, exports, update docs

Author: Vincent Landau

README.md

@@ -2,8 +2,8 @@
 
 SpatialGraphs.jl introduces the `AbstractSpatialGraph`. `AbstractSpatialGraphs` 
 are a subtype of `LightGraphs.AbstractGraph`, and can be weighted or directed. 
-AbstractSpatialGraphs are AbstractGraphs, methods from LightGraphs.jl and 
-SimpleWeightedGraphs.jl work right out of the box.
+AbstractSpatialGraphs are AbstractGraphs, methods from LightGraphs.jl work right
+out of the box.
 
 `AbstractSpatialGraph`s themselves contain an `AbstractGraph` in addition to 
 metadata that details the spatial location of each vertex in the

docs/src/index.md

@@ -5,7 +5,7 @@ are a subtype of `LightGraphs.AbstractGraph`, and can be weighted or directed.
 SpatialGraphs.jl is useful for turning spatial data into graphs. This can be
 useful for landscape connectivity analysis, hydrology, and other spatial
 network processes. AbstractSpatialGraphs are AbstractGraphs, methods from 
-LightGraphs.jl and SimpleWeightedGraphs.jl work right out of the box. 
+LightGraphs.jl work right out of the box. 
 Go to [Graph Types](@ref) for more details on the graph types implemented in 
 this package.
 

src/SpatialGraphs.jl

@@ -1,11 +1,11 @@
 module SpatialGraphs
 
-using LightGraphs, SimpleWeightedGraphs, ArchGDAL
+using LightGraphs, SimpleWeightedGraphs, ArchGDAL, GeoData
 
 include("structs.jl")
 include("graph_interface.jl")
 ## Types and Structs
-export AbstractSpatialGraph, AbstractSpatialWeightedGraph, RasterGraph,
-       RasterDiGraph, WeightedRasterGraph, WeightedRasterDiGraph
+export AbstractSpatialGraph, AbstractRasterGraph, SimpleRasterGraphs,
+       SimpleRasterDiGraph, WeightedRasterGraph, WeightedRasterDiGraph
 
 end # module

src/graph_interface.jl

@@ -13,7 +13,4 @@ has_vertex(g::AbstractSpatialGraph, v) = has_vertex(g.graph, v)
 inneighbors(g::AbstractSpatialGraph, v) = inneighbors(g.graph, v)
 outneighbors(g::AbstractSpatialGraph, v) = outneighbors(g.graph, v)
 is_directed(g::AbstractSpatialGraph) = is_directed(g.graph)
-Base.zero(g::AbsractSpatialGraph) = zero(g.graph)
-
-### SimpleWeightedGraphs interface
-get_weight(g::AbstractWeightedSpatialGraph, u::Integer, v::Integer) = get_weight(g.graph, u, v)
+Base.zero(g::AbstractSpatialGraph) = zero(g.graph)