add 3dquiver to pgfplotsx (#3146)

* add 3dquiver to pgfplotsx

* fix 3d quiver

* remove skip from examples

src/backends/pgfplotsx.jl

@@ -282,7 +282,7 @@ function (pgfx_plot::PGFPlotsXPlot)(plt::Plot{PGFPlotsXBackend})
                 )
                 extra_series, extra_series_opt = pgfx_split_extra_opts(series[:extra_kwargs])
                 series_opt = merge(series_opt, PGFPlotsX.Options(extra_series_opt...))
-                if RecipesPipeline.is3d(series) || st in (:heatmap, :contour)
+                if RecipesPipeline.is3d(series) || st in (:heatmap, :contour) || (st == :quiver && opt[:z] !== nothing)
                     series_func = PGFPlotsX.Plot3
                 else
                     series_func = PGFPlotsX.Plot
@@ -587,6 +587,18 @@ function pgfx_add_series!(::Val{:quiver}, axis, series_opt, series, series_func,
         )
         x = opt[:x]
         y = opt[:y]
+        z = opt[:z]
+        if z !== nothing
+            push!(series_opt["quiver"], "w" => "\\thisrow{w}")
+            table = PGFPlotsX.Table([
+                :x => x,
+                :y => y,
+                :z => z,
+                :u => opt[:quiver][1],
+                :v => opt[:quiver][2],
+                :w => opt[:quiver][3],
+            ])
+        else
             table = PGFPlotsX.Table([
                 :x => x,
                 :y => y,
@@ -594,6 +606,7 @@ function pgfx_add_series!(::Val{:quiver}, axis, series_opt, series, series_func,
                 :v => opt[:quiver][2],
             ])
         end
+    end
     series_plot = series_func(series_opt, table)
     push!(axis, series_plot)
     pgfx_add_legend!(axis, series, opt)

src/examples.jl

@@ -1120,7 +1120,6 @@ _backend_skips = Dict(
         32, # spy
         49, # polar heatmap
         51, # image with custom axes
-        52, # 3d quiver
     ],
 )
 

src/pipeline.jl

@@ -316,7 +316,7 @@ end
 
 function _override_seriestype_check(plotattributes::AKW, st::Symbol)
     # do we want to override the series type?
-    if !RecipesPipeline.is3d(st) && !(st in (:contour, :contour3d))
+    if !RecipesPipeline.is3d(st) && !(st in (:contour, :contour3d, :quiver))
         z = plotattributes[:z]
         if !isa(z, Nothing) &&
            (size(plotattributes[:x]) == size(plotattributes[:y]) == size(z))