started real time updates; fixes #29 (pyplot ijulia display)

examples/iris.ipynb

@@ -123,7 +123,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Julia 0.4.0-rc2",
+   "display_name": "Julia 0.4.0-rc1",
    "language": "julia",
    "name": "julia-0.4"
   },

src/backends/immerse.jl

@@ -49,6 +49,28 @@ function updatePlotItems(plt::Plot{ImmersePackage}, d::Dict)
 end
 
 
+# add a new x/y data point to series i
+function Base.push!(plt::Plot{ImmersePackage}, i::Int, x::Real, y::Real)
+  gplt = plt.o[2]
+  data = gplt.layers[end-i+1].mapping
+  data[:x] = extendSeriesData(data[:x], x)
+  data[:y] = extendSeriesData(data[:y], y)
+  plt
+end
+
+# add a new y, and extend x "naturally"
+function Base.push!(plt::Plot{ImmersePackage}, i::Int, y::Real)
+  gplt = plt.o[2]
+  data = gplt.layers[end-i+1].mapping
+  data[:x] = extendSeriesData(data[:x])  # this will only work with a UnitRange{Int}!!!
+  data[:y] = extendSeriesData(data[:y], y)
+  plt
+end
+
+extendSeriesData(v::UnitRange{Int}) = minimum(v):maximum(v)+1
+extendSeriesData{T<:Real}(v::AVec{T}, z::Real) = (push!(v, convert(T, z)); v)
+
+
 # ----------------------------------------------------------------
 
 

src/plot.jl

@@ -173,10 +173,13 @@ convertToAnyVector(v::AVec; kw...) = Any[vi for vi in v], nothing
 # in computeXandY, we take in any of the possible items, convert into proper x/y vectors, then return.
 # this is also where all the "set x to 1:length(y)" happens, and also where we assert on lengths.
 computeX(x::Void, y) = 1:length(y)
-computeX(x, y) = x
+computeX(x, y) = copy(x)
 computeY(x, y::Function) = map(y, x)
-computeY(x, y) = y
+computeY(x, y) = copy(y)
 function computeXandY(x, y)
+  if x == nothing && isa(y, Function)
+    error("If you want to plot the function `$y`, you need to define the x values somehow!")
+  end
   x, y = computeX(x,y), computeY(x,y)
   @assert length(x) == length(y)
   x, y

src/plotter.jl

@@ -125,6 +125,7 @@ function plotter()
       try
         @eval import PyPlot
         @eval export PyPlot
+        PyPlot.ioff()
       catch
         error("Couldn't import PyPlot.  Install it with: Pkg.add(\"PyPlot\")")
       end