subplot fixes and examples

docs/example_generation.jl

@@ -49,6 +49,23 @@ const examples = PlotExample[
   PlotExample("Histogram",
               "note: fillto isn't supported on all backends",
               [:(histogram(randn(1000); nbins=50, fillto=20))]),
+  PlotExample("Subplots",
+              """
+                subplot and subplot! are distinct commands which create many plots and add series to them in a circular fashion.
+                You can define the layout with keyword params... either set the number of plots `n` (and optionally number of rows `nr` or 
+                number of columns `nc`), or you can set the layout directly with `layout`.  
+
+                Note: Gadfly is not very friendly here, and although you can create a plot and save a PNG, I haven't been able to actually display it.
+              """,
+              [:(subplot(randn(100,5); layout=[1,1,3], linetypes=[:line,:hist,:dots,:step,:bar], nbins=10, legend=false))]),
+  PlotExample("Adding to subplots",
+              "Note here the automatic grid layout, as well as the order in which new series are added to the plots.",
+              [:(subplot(randn(100,5); n=4))]),
+  PlotExample("Adding to subplots (continued)",
+              "",
+              [:(subplot!(randn(100,3)))]),
+
+  
 ]
 
 

docs/gadfly_examples.md

@@ -100,3 +100,38 @@ histogram(randn(1000); nbins=50,fillto=20)
 
 ![](../img/gadfly_example_10.png)
 
+### Subplots
+
+  subplot and subplot! are distinct commands which create many plots and add series to them in a circular fashion.
+  You can define the layout with keyword params... either set the number of plots `n` (and optionally number of rows `nr` or 
+  number of columns `nc`), or you can set the layout directly with `layout`.  
+
+  Note: Gadfly is not very friendly here, and although you can create a plot and save a PNG, I haven't been able to actually display it.
+
+
+```julia
+subplot(randn(100,5); layout=[1,1,3],linetypes=[:line,:hist,:dots,:step,:bar],nbins=10,legend=false)
+```
+
+![](../img/gadfly_example_11.png)
+
+### Adding to subplots
+
+Note here the automatic grid layout, as well as the order in which new series are added to the plots.
+
+```julia
+subplot(randn(100,5); n=4)
+```
+
+![](../img/gadfly_example_12.png)
+
+### Adding to subplots (continued)
+
+
+
+```julia
+subplot!(randn(100,3))
+```
+
+![](../img/gadfly_example_13.png)
+

docs/qwt_examples.md

@@ -100,3 +100,38 @@ histogram(randn(1000); nbins=50,fillto=20)
 
 ![](../img/qwt_example_10.png)
 
+### Subplots
+
+  subplot and subplot! are distinct commands which create many plots and add series to them in a circular fashion.
+  You can define the layout with keyword params... either set the number of plots `n` (and optionally number of rows `nr` or 
+  number of columns `nc`), or you can set the layout directly with `layout`.  
+
+  Note: Gadfly is not very friendly here, and although you can create a plot and save a PNG, I haven't been able to actually display it.
+
+
+```julia
+subplot(randn(100,5); layout=[1,1,3],linetypes=[:line,:hist,:dots,:step,:bar],nbins=10,legend=false)
+```
+
+![](../img/qwt_example_11.png)
+
+### Adding to subplots
+
+Note here the automatic grid layout, as well as the order in which new series are added to the plots.
+
+```julia
+subplot(randn(100,5); n=4)
+```
+
+![](../img/qwt_example_12.png)
+
+### Adding to subplots (continued)
+
+
+
+```julia
+subplot!(randn(100,3))
+```
+
+![](../img/qwt_example_13.png)
+

src/Plots.jl

@@ -69,7 +69,7 @@ heatmap!(args...; kw...)   = plot!(args...; kw..., linetype = :heatmap)
 
 
 savepng(args...; kw...) = savepng(currentPlot(), args...; kw...)
-savepng(plt::Plot, args...; kw...) = savepng(plt.plotter, plt, args...; kw...)
+savepng(plt::PlottingObject, args...; kw...) = savepng(plt.plotter, plt, args...; kw...)
 
 
 # ---------------------------------------------------------

src/gadfly.jl

@@ -104,8 +104,9 @@ function Base.display(::GadflyPackage, plt::Plot)
   display(plt.o)
 end
 
+# -------------------------------
 
-function savepng(::GadflyPackage, plt::Plot, fn::String;
+function savepng(::GadflyPackage, plt::PlottingObject, fn::String;
                                     w = 6 * Gadfly.inch,
                                     h = 4 * Gadfly.inch)
   Gadfly.draw(Gadfly.PNG(fn, w, h), plt.o)

src/subplot.jl

@@ -115,7 +115,7 @@ function subplot!(subplt::Subplot, args...; kw...)
   # do we want to show it?
   d = Dict(kw)
   if haskey(d, :show) && d[:show]
-    display(subplt)
+    draw(subplt)
   end
 
   subplt