Merge pull request #106 from rcnlee/master

Minor changes - animations and AbstractDataFrame

src/animation.jl

@@ -1,19 +1,18 @@
 
-immutable Animation{P<:PlottingObject}
+immutable Animation
-  plt::P
   dir::ASCIIString
   frames::Vector{ASCIIString}
 end
 
-function Animation(plt::PlottingObject)
+function Animation()
-  Animation(plt, mktempdir(), ASCIIString[])
+  tmpdir = convert(ASCIIString, mktempdir())
+  Animation(tmpdir, ASCIIString[])
 end
-Animation() = Animation(current())
 
-function frame(anim::Animation)
+function frame{P<:PlottingObject}(anim::Animation, plt::P=current())
   i = length(anim.frames) + 1
   filename = @sprintf("%06d.png", i)
-  png(anim.plt, joinpath(anim.dir, filename))
+  png(plt, joinpath(anim.dir, filename))
   push!(anim.frames, filename)
 end
 

src/plot.jl

@@ -461,12 +461,12 @@ end
 function dataframes()
   @eval import DataFrames
 
-  @eval function createKWargsList(plt::PlottingObject, df::DataFrames.DataFrame, args...; kw...)
+  @eval function createKWargsList(plt::PlottingObject, df::DataFrames.AbstractDataFrame, args...; kw...)
     createKWargsList(plt, args...; kw..., dataframe = df)
   end
 
   # expecting the column name of a dataframe that was passed in... anything else should error
-  @eval function extractGroupArgs(s::Symbol, df::DataFrames.DataFrame, args...)
+  @eval function extractGroupArgs(s::Symbol, df::DataFrames.AbstractDataFrame, args...)
     if haskey(df, s)
       return extractGroupArgs(df[s])
     else